Thursday, 21 March 2019

FSC 2nd year Physics Punjab Board Part II Solved MCQs

Physics 2nd Year Punjab Board Chapter Wise MCQs Solved Notes. Many of the students of F.Sc Punjab board exams have needed important MCQs chapter wise. Chemistry Notes, Here i am sharing important MCQs of Physics Chapter wise notes. Mathematics Notes,  All solved Physics notes are available here. If you are looking for the FSc Physics Past Papers MCQs then you can easily prepared chapter wise MCQs here. Because here we have provide you all the FSC 2nd year Physics Past Papers MCQs chapter wise.





Download and read online the Multiple Choice Questions Extracted from Past Papers of All Boards Of Punjab BISE Lahore Board, BISE Faisalabad Board, BISE Gujranwala Board, BISE Multan Board, BISE Sargodha Board, BISE Bahawalpur Board etc. MCQs with Answers for 2nd Year Physics chapter 12 electrostatics. We are very optimistic to create latest written notes for the best of our efforts and provide easy Are you looking for MCQs of physics 2nd year with answers chapter wise notes for the Fbise and all the Boards Of Intermediate and Secondary Education.

12th Class Physics MCQs Chapter 1 Electrostatics Punjab Board



Question 1: Two metallic sphere of radius 2 cm and 4 cm get equal quantity of charge. Which has greater surface charge density ?
  1. Both have same
  2. 2nd sphere
  3. None of these
  4. First sphere
D
Question 2: When the medium is insulator the electrostatic force between the charges is ?
  1. Zero
  2. None of above
  3. Increased
  4. Decreased
D
Question 3: Electric flux is a ?
  1. Both (a) and (b)
  2. Scalar quantity
  3. Vector quantity
  4. None of above
B
Question 4: The number of electrons in one coulomb charge is equal to ?
  1. 6.2 x 10¹⁸
  2. Zero electrons
  3. 6.2 x 10²¹ electrons
  4. 1.6 x 10⁻²²
A
Question 5: Which one of the following is ?
  1. 1μF = 10⁻⁶F
  2. All of above
  3. 1PF = μμF
  4. 1PF = 10⁻¹²F
B
Question 6: The relative permittivity of air is ?
  1. 1.006
  2. 1.0006
  3. 1.06
  4. 79.5
B
Question 7: A force of 0.01 N is exerted on a charge 1.2 x 10⁻⁵C at a certain point. The electric field at that point is ?
  1. 1.2 x 10⁴ C/N
  2. 1.2 x 10⁴ N/C
  3. 8.3 x 10² N/C
  4. 8.3 x 10⁻² N/C
C
Question 8: The number of lines per unit area passing perpendicular through an area is called ?
  1. None of these
  2. Electric intensity
  3. Flux
  4. Both (a) and (b)
B
Question 9: If a charge body moved against the electric field it will gain ?
  1. Mechanical energy
  2. Potential energy
  3. K.E
  4. Electric potential energy
D
Question 10: The electric intensity due to two oppositely charged plates is ?
  1. E → = σ/ ε₀ r̂
  2. E → = σ σ₀ r̂
  3. None of these
  4. E → = ε₀/σ r̂
A
Question 11: Metals are good conductors of electricity because they have ?
  1. Large number of free electrons
  2. Small number of free electrons
  3. Large number of bounded electrons
  4. Small number of electrons
A
Question 12: The electric intensity at infinite distance from the point charge is ?
  1. Positive
  2. Infinite
  3. Zero
  4. Negative
D
Question 13: The photo copying process is called ?
  1. Inkjet printer
  2. Xerography
  3. Both (a) and (b)
  4. None of these
B
Question 14: An electric field cannot deflect ?
  1. None of these
  2. β-particles
  3. α-particles
  4. X-rays
D

12th Class Physics MCQs Chapter 2 Current Electricity Punjab Board



Question 1: Terminal potential difference is greater than emf of the cell when ?
  1. Circuit is open
  2. Circuit is closed
  3. None of these
  4. Small battery is charged by bigger battery
D
Question 2: The condition for the wheatstone bridge to be balanced is given by ?
  1. R₁/R₂ = R₃/R₄
  2. None of above
  3. R₁/R₂ = R₄/R₃
  4. R₂/R₁ = R₃/R₄
A
Question 3: The product of resistance and conductance is ?
  1. 1
  2. Conductance
  3. Resistivity
  4. Zero
A
Question 4: Magnetic effect of current is used ?
  1. In electric motor
  2. To detect a current
  3. To measure a current
  4. All of above
D
Question 5: During electrolysis process, density of CuSO₄ solution ?
  1. None of these
  2. Remains constant
  3. Decreased
  4. Increased
B
Question 6: The resistivity of----------- decrease with the increase in temp ?
  1. Silver
  2. Gold
  3. Copper
  4. Silicon
D
Question 7: e.m.f. is the conversion of---------- energy into electrical energy ?
  1. Light
  2. Solar
  3. Chemical
  4. None of these
C
Question 8: The conventional current is due to the flow of ?
  1. Positive charge
  2. Negative charge
  3. Atoms and molecules
  4. Both (b) and (c)
A
Question 9: If there is no fourth band, tolerance is shows as ?
  1. ±20%
  2. ±10%
  3. 10%
  4. ±5%
A
Question 10: If a charge Q flows through any cross section of the conductor in time t, the current I is ?
  1. I = Qt
  2. I = Q²/t
  3. I = t/Q
  4. I = Q/t
D
Question 11: When a pot difference of 4 volt is applied across resistance, 10 J of energy is converted, Find charge flows ?
  1. 5.0 C
  2. 2.5 C
  3. 0.20 C
  4. 10.0 c
B
Question 12: Unit (S.I) of temperature coefficient of resistivity of a material is ?
  1. K⁻²
  2. K
  3. K⁻¹
  4. ˚C
C
Question 13: A rheostat can be used as variable resistor as well as a --------- ?
  1. Current divider
  2. Power divider
  3. Wheat stone bridge
  4. Potential divider
D
Question 14: For non-ohmic devices, the graph between V and I is ?
  1. All of above
  2. A straight line
  3. Not a straight line
  4. A curve
C

12th Class Physics MCQs Chapter 3 Electromagnetism Punjab Board



Question 1: The unit of magnetic induction B → is ?
  1. Weber/m²
  2. Coulomb/ampere
  3. Coulomb
  4. Ampere
A
Question 2: If an electron is projected in a magnetic field with velocity V, it will experience a force ?
  1. F→ = V→ (e x B→)
  2. F→ = e (V→ . B→)
  3. F→ = e (B→ x V→)
  4. F→ = e (V→ x B→)
D
Question 3: Ampere’s circuital law is ∑N i=1(B→. ∆ L→)i= ?
  1. μ₀B
  2. μ₀I
  3. μ₀A
  4. None of the above
C
Question 4: Weber is the unit of ?
  1. Magnetic flux
  2. Permeability
  3. None of above
  4. Magnetic force
A
Question 5: To convert a galvanometer into an ammeter, we connect with it as ?
  1. Low value by pass resistor
  2. Shunt resistance
  3. Low value parallel
  4. All of above
A
Question 6: For accurate measurement of current through a circuit, the resistance of ammeter should be ?
  1. Very small
  2. Neither small nor high
  3. Very high
  4. None of the above
A
Question 7: The name of the scientist who noted that a compass needle was deflected when placed near the current carrying conductor ?
  1. Coloumb
  2. Faraday
  3. Oersted
  4. Henry
C
Question 8: The permeability of free space is measured in ?
  1. Wb A/m
  2. m/wbA
  3. wb/Am
  4. Am/wb
C
Question 9: CRO works by deflecting the beam of electron as they pass through ?
  1. Uniform electric field between two sets of parallel plates
  2. Non- Uniform magnetic field
  3. Uniform magnetic field
  4. None of these
C
Question 10: In CRO, the output waveform of time base generator is ?
  1. Saw-toothed
  2. Square
  3. Sinusoidal
  4. Circular
A
Question 11: Lorentz force means the force acting on a particle, which is ?
  1. None of these
  2. Sum of electric and magnetic force
  3. Electric force only
  4. Magnetic force only
B
Question 12: The dimensions of magnetic flux are ?
  1. ML²T²A⁻¹
  2. MLT⁻² A⁻¹
  3. ML²T⁻²A⁻¹
  4. M¹L⁻² T¹A¹
C
Question 13: The magnetic field is uniform and stronger ?
  1. Inside the solenoid
  2. Outside the solenoid
  3. None of these
  4. At the central part of the solenoid
D
Question 14: The acceleration of an electron of mass m and charge e, moving with uniform speed v at right angles to a magnetic field of flux density B, is given by ?
  1. Bev/m
  2. Bv/m
  3. Bevm
  4. Be/m
A

12th Class Physics MCQs Chapter 4 Electromagnetism Induction Punjab Board



Question 1: Commutator was invented in ?
  1. 1834
  2. 1840
  3. 1835
  4. 1820
A
Question 2: A.C is converted into D.C by ?
  1. Rectifier
  2. Dynamo
  3. Transformer
  4. Motor
A
Question 3: If the north pole of a magnet moves away from a metallic ring, then the current flows ?
  1. None of above
  2. First clockwise and then anticlockwise
  3. Clockwise
  4. Anticlockwise
C
Question 4: The unit of induced emf is ?
  1. Joule/Coulomb
  2. Volt
  3. Ampere
  4. Both (b) and (c)
D
Question 5: Lenz’s law presented in ?
  1. 1826
  2. 1836
  3. 1934
  4. 1834
D
Question 6: The direction of induced current is always so as to oppose the change which causes the current, this is the statement of ?
  1. Coulomb’s law
  2. Faraday’s law
  3. Ampere’s law
  4. Lenz’s law
D
Question 7: In case of a motor, if V is the applied emf and є is the back emf then net emf in the circuit is ?
  1. V + є
  2. є/V
  3. V x є
  4. V – є
D
Question 8: Michael Faraday and Joseph Henry belongs to ?
  1. China and USA
  2. France and USA
  3. England and USA
  4. None of these
C
Question 9: The negative sign in the equation єL = L ∆I/∆ can be explained by ?
  1. Ampere’s law
  2. None of these
  3. Lenz’s law
  4. Faraday’s law
C
Question 10: When the back emf in a current is zero, it draws ?
  1. Maximum current
  2. Minimum current
  3. Zero current
  4. Steady average current
D
Question 11: One henry is equal to ?
  1. 1 ohm x 1 hertz
  2. 1 ohm x 1 meter
  3. 1 ohm x 1 sec
  4. All of above
C
Question 12: The magnitude of motional emf is given by ?
  1. Є = V/BL
  2. Є = - VBL
  3. Є = - L/VB
  4. Є = VBL
B
Question 13: Self inductance of a long solenoid is given by ?
  1. L = μ₀NI² A
  2. None of the above
  3. L = μ₀n²/l
  4. L = μ₀n² Al
D
Question 14: 1 Henry = ?
  1. VSA⁻¹
  2. V⁻¹SA
  3. VSA⁻²
  4. VS⁻¹ A⁻¹
A

12th Class Physics MCQs Chapter 5 Alternating Current Punjab Board



Question 1: The value of capacitive reactance is given by ?
  1. Xc = VI
  2. All of above
  3. Xc = V/I
  4. Xc = I/V
C
Question 2: The unit of impedance is ?
  1. Henry
  2. Farad
  3. Ohm
  4. Tesla
C
Question 3: In case of capacitor, the unit of reactance is ?
  1. Newton
  2. All of these
  3. Farad
  4. Ohm
D
Question 4: In frequency modulation, the amplitude of carrier waves is ?
  1. Decreases
  2. None of these
  3. Increases
  4. Remains constant
D
Question 5: If Vrms be the root mean square value of emf then its peak to peak value is given by ?
  1. 2/√2 Vrms
  2. √2/ Vrms
  3. Vrms/2
  4. Vrms/√2
B
Question 6: The reactance is the ratio of ?
  1. Vrms x Irms
  2. Irms/Vrms
  3. Vmax x Vrms
  4. Vrms/Irms
D
Question 7: If I₀ is the peak value of current, then ?
  1. 2 I₀
  2. 0.7 I₀
  3. √2 I₀
  4. I₀
B
Question 8: The reactance of inductor depends upon ?
  1. ω
  2. All of the above
  3. ωL
  4. L
C
Question 9: The electromagnetic spectrum contains ?
  1. X-rays
  2. All of these
  3. Radio waves
  4. Microwaves
B
Question 10: The peak to peak value of alternating voltage is ?
  1. 2V₀
  2. None of these
  3. V₀/2
  4. V₀
A
Question 11: The effective value of any sinusoidal alternating current or voltage is ?
  1. None of the above
  2. √2 times it maximum value
  3. √3 times it maximum value
  4. 1/√2 times it maximum value
D
Question 12: The natural frequency of L.C circuit is equal to ?
  1. 1/2π √C/L
  2. 1/2π √L/C
  3. 1/2π√LC
  4. √LC/2π
C
Question 13: At high frequency, the current through a capacitor is ?
  1. Large
  2. Zero
  3. Infinity
  4. Small
A
Question 14: Radio frequency choke is ?
  1. Air as well as iron cored
  2. None of these
  3. Iron cored
  4. Air Cored
D

12th Class Physics MCQs Chapter 6 Physics of solids Punjab Board



Question 1: Coercive force is used to ?
  1. Magnetize the material
  2. None of these
  3. Demagnetize the material
  4. Extend it
C
Question 2: The material whose resistivity becomes zero below a certain temperature ?
  1. Semi conductors
  2. Super conductors
  3. Conductors
  4. Insulators
B
Question 3: Curie temperature is ?
  1. None of these
  2. Same for iron and cobalt
  3. Different for chromium oxide and cobalt
  4. Same for chromium oxide and cobalt
C
Question 4: An ordinary glass gradually softness into a paste like state before it becomes a very viscous liquid which is possible at ?
  1. 800°C
  2. 900°C
  3. 600°C
  4. 100°C
A
Question 5: A pentaralent impurity in Si ?
  1. No free particle
  2. A free electron and a free hole
  3. A free electron
  4. A free hole
C
Question 6: Which of the following has bulk modulus ?
  1. Water
  2. All
  3. Gas
  4. Solid helium
B
Question 7: At 0 K a piece of silicon is a ?
  1. Insulator
  2. All
  3. Semi-conductor
  4. Conductor
C
Question 8: The curie temp for iron is about ?
  1. 650°C
  2. 800°C
  3. 750°C
  4. 740°C
C
Question 9: The conductors having the conductivity of the order of ?
  1. 10⁻⁷ (Ω – m) ⁻¹
  2. 10⁻¹⁰ (Ω – m) ⁻¹
  3. 10⁷ (Ω m) ⁻¹
  4. 10⁻⁴ (Ω – m) ⁻¹
C
Question 10: Recently a complex crystalline structure known as yttrium barium copper oxide (Yba₂ Cu₃ O₃) have reported to become super conductor at ?
  1. 169 K
  2. 100 K
  3. 163 K
  4. 200 K
C
Question 11: Yield stress is another name of ?
  1. Proportional limit
  2. Elastic limit
  3. Plasticity
  4. Both (b) and (c)
B
Question 12: The solids are classified as ?
  1. Polymeric
  2. All of above
  3. Crystalline
  4. Amorphous
B
Question 13: The domain theory of magnet is important to explain the behavior of ?
  1. Paramagnets
  2. All of these
  3. Ferromagnets
  4. Diamagnets
C
Question 14: The dimension of stress is ?
  1. [ML⁻¹T⁻²]
  2. [ML⁻¹T⁻¹]
  3. [ML⁻¹T]
  4. [MLT⁻¹]
A

12th Class Physics MCQs Chapter 7 Electronics Punjab Board



Question 1: The circuit of full wave rectification consist of ?
  1. Three diodes
  2. Four diodes
  3. Two diodes
  4. One diodes
B
Question 2: The impurity in the germanium is usually in the ratio of ?
  1. 1:10⁶
  2. 1:10¹⁰
  3. 1:10⁸
  4. 1:10⁴
C
Question 3: The semi conductor diode has the property of ?
  1. Two way conduction
  2. Amplification
  3. Zero conduction
  4. One way conduction
D
Question 4: An expression for gain of an inverting amplifier is ?
  1. - R₂/R₁
  2. None of these
  3. R₁/R₂
  4. (R₁R₂)
A
Question 5: The potential difference across depletion region in case of Si is ?
  1. 0.7 volt
  2. 0.6 volt
  3. 0.9 volt
  4. 0.2 volt
A
Question 6: The mathematical symbol for NOR operation is ?
  1. X =A . B
  2. X = A + B
  3. X = A . B
  4. X =A + D
B
Question 7: In case of op-amp as an inverting amplifier, V₊ - V₋ = 0, this is because ?
  1. Both (a) and (b)
  2. Closed loop gain is very high
  3. Open loop gain is very high
  4. Open gain loop is very low
C
Question 8: The symbol of p-n-p transistor is ?
  1. E /B /ІC
  2. E /C /ІB
  3. E /C/ІB
  4. E /B /ІC
B
Question 9: For normal transistor the emitter current can be given by ?
  1. None of these
  2. Iε = IB
  3. Iε = IC
  4. Iε = IC + IB
D
Question 10: In a certain circuit, IB = 40 μA, IC = 20 mA ?
  1. 5 m amp
  2. 0.45 amp
  3. 450 amp
  4. 500 amp
D
Question 11: One use of a single p-n junction semiconductor in an electrical circuit is a ?
  1. Rectifier
  2. Diode
  3. Battery
  4. Transistor
A
Question 12: The average gap for Germanium at 0K is ?
  1. 7.2 ev
  2. 1.12 ev
  3. 6.72 ev
  4. 0.02 ev
C
Question 13: the gate, which change the logic level to its opposite level is called ?
  1. NOR gate
  2. AND gate
  3. OR gate
  4. NOT gate
D
Question 14: The output from a full wave rectifier is ?
  1. Zero
  2. A dc voltage
  3. An ac voltage
  4. A pulsating unidirectional voltage
D

12th Class Physics MCQs Chapter 8 Dawn of Modern Physics Punjab Board



Question 1: For a black body, the product of λm and T known as ?
  1. Planck’s constant
  2. Davison constant
  3. Lumber’s constant
  4. Wien’s constant
D
Question 2: The Compton effect is associated with ?
  1. X-rays
  2. γ-rays
  3. β-rays
  4. Positive rays
A
Question 3: Compton shift is maximum for scattering angle of Photon ?
  1. 45˚
  2. 180˚
  3. 90˚
D
Question 4: The unit of work function is ?
  1. Electron Volt
  2. Volt cell
  3. Hz
  4. Ampere
A
Question 5: In the equation if f₂>f₁ then ?
  1. λ₁ = √ λ₂
  2. λ₁ > λ₂
  3. λ₁ = λ₂
  4. λ₁ < λ₂
B
Question 6: Which one of the following paved the way for modern physics ?
  1. Quantum theory
  2. Newtonian mechanics
  3. All of above
  4. theory of relativity
D
Question 7: Which one of the following physical quantities change with relativistic speed ?
  1. Mass
  2. Length
  3. Time
  4. All of above
D
Question 8: If the energy of photon is 10 eV and work function is 5 eV, then the value of stopping potential will be ?
  1. 5 V
  2. 15 V
  3. 50 V
  4. 2 V
A
Question 9: The photoelectric effect predicts that light is made of ?
  1. Photons
  2. Neutrons
  3. Protons
  4. None of these
A
Question 10: The concept of direction is purely ?
  1. None of these
  2. Absolute
  3. Relative to the motion
  4. Relative
D
Question 11: The uncertainty principle was given by ?
  1. Einstein
  2. De-Broglie
  3. Max Planck
  4. Heisenberg
D
Question 12: Unit of Stephen’s constant is ?
  1. W m K⁻²
  2. None
  3. W m K⁻⁴
  4. W m⁻² K⁻⁴
D
Question 13: Einstein photoelectric equation is ?
  1. hf = ø + 1/2 mV² max
  2. None of these
  3. ø=hf + 1/2 V² max
  4. hf + ø = 1/2 mV² max
  5. Urdu
A
Question 14: The numerical value of Compton wavelength is equal to ?
  1. 1.43 x 10⁻¹² m
  2. 0.43 x 10⁻¹² m
  3. 3.43 x 10⁻¹² m
  4. 2.43 x 10⁻¹² m
D

12th Class Physics MCQs Chapter 9 Atomic Spectra Punjab Board



Question 1: Reflecting mirrors in laser is used to ?
  1. For producing more energetic lasers
  2. Both (a) and (b)
  3. Further stimulation
  4. None of these
C
Question 2: X-rays were discovered by ?
  1. Rontgen
  2. Curie
  3. Henry Becquerel
  4. None of these
A
Question 3: The X-rays diffraction with crystal was first studied by ?
  1. None of these
  2. W.H Bragg
  3. W.L. Bragg
  4. Michelson
B
Question 4: An atom can reside in excited state for ?
  1. 10⁻⁸ second
  2. 10⁻¹⁰ second
  3. One second
  4. More than one second
A
Question 5: Life time of metastable states is ?
  1. 10⁻⁶ sec or more
  2. 10⁻⁵ sec or more
  3. None of these
  4. 10⁻³ sec or more
D
Question 6: Which of the following is one of the spectral series of atomic hydrogen ?
  1. Balmer series
  2. All of above
  3. P fund series
  4. Brockett series
B
Question 7: The process by which lesser beam can be used to generate 3-dimensional images of objects is called ?
  1. Radio graphy
  2. Geo graphy
  3. Holography
  4. Tomography
C
Question 8: The idea of laser device was first introduced by C.H. Townes and Authors Schowlan is ?
  1. 1958
  2. 1965
  3. 1972
  4. 1913
A
Question 9: Helium-Neon laser discharge tube contains neon ?
  1. 85%
  2. 25%
  3. 82%
  4. 15%
D
Question 10: The value of Rydberg constant is ?
  1. 1.0974 x 10⁷ m⁻¹
  2. 1.0974 x 10⁶ m⁻¹
  3. 1.0974 x 10⁻⁷ m⁻¹
  4. 1.0974 x 10⁻⁶ m⁻¹
A
Question 11: If the ionization energy of hydrogen atom is 13.6 eV, its ionization potential will be ?
  1. None of these
  2. 136.0 volt
  3. 3.0 volt
  4. 13.6 volt
D
Question 12: The 1st Bohr atom in the hydrogen atom has radius ?
  1. 3.56 x 10⁻¹⁰ m
  2. 5.30 x 10⁻¹¹ m
  3. 0.53 x 10⁻¹¹ m
  4. 0.053 x 10⁻¹¹ m
B
Question 13: Study of hydrogen visible spectrum in ?
  1. 1885
  2. 1895
  3. 1886
  4. 1887
A
Question 14: The first theory about the structure of an atom was introduced by ?
  1. Neil Bohr
  2. Rutherford
  3. Compton
  4. Einstein
B

12th Class Physics MCQs Chapter 10 Nuclear Physics Punjab Board



Question 1: The SI unit of decay constant is ?
  1. m
  2. S⁻¹
  3. m⁻¹
  4. Nm⁻¹
C
Question 2: Radioactivity happen due to the disintegration of ?
  1. Electrons
  2. Mass
  3. Nucleus
  4. Protons
C
Question 3: Charge on an electron was determined by ?
  1. Maxwell
  2. Bohr
  3. Millikan
  4. Ampere
C
Question 4: One joule of energy absorbed per kilogram of a body is ?
  1. Grey
  2. Rem
  3. Roentgen
  4. Curie
A
Question 5: n Wilson cloud chamber, if tracks are thick, straight and continuous, then particle is ?
  1. γ- rays
  2. β-particles
  3. α-particles
  4. All
C
Question 6: The early Greeks believed that matter waves was ?
  1. Discrete
  2. All of these
  3. Both continuous and discrete
  4. Contmuous
A
Question 7: The first atomic reactor was introduced by ?
  1. Bohr
  2. Enrico Fermi
  3. Newton
  4. Currie
B
Question 8: In Wilson cloud chamber, β-particles leave ?
  1. Thick and continuous tracks
  2. Thin and discontinuous tracks
  3. No tracks
  4. Thin and continuous tracks
B
Question 9: 1 amu is equal to ?
  1. 1.0606 x 10⁻²⁷ kg
  2. 1.66 x 10⁻¹⁹ kg
  3. 1.66 x 10⁻³⁴ kg
  4. 1.66 x 10⁻³¹ kg
A
Question 10: The radioactive decay obeys the law ?
  1. N₀ = N(1 + e⁻λt)
  2. N = N₀e⁻λt
  3. N₀ = Ne⁻λt
  4. N = N₀eλt
B
Question 11: The energy of photon for photoelectric effect is less than ?
  1. 1 Me V
  2. 2 Me V
  3. 5 Me V
  4. 8 Me V
C
Question 12: Low level radiations effects ?
  1. Drop of with blood cells
  2. All
  3. Less of hair
  4. Ulceration
B
Question 13: The mass spectrum of naturally occurring neon, showing ?
  1. 1 isotope
  2. 4 isotope
  3. 3 isotope
  4. 2 isotope
C
Question 14: The potential difference between the top and bottom of a cloud chamber is of the order of ?
  1. 400v
  2. 290 v
  3. None of above
  4. 1 kv
D