By: Prof. Dr. Fazal Rehman | Last updated: March 3, 2022
Physics Multiple Choices Questions PPSC
1. Due to the relative motion of the observer and frame of the reference time is …A. ConstantB. UniformC. ContractsD. DilatesE. None of these
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B
2. Rest mass energy of an electron is …A. 1.02 MeVB. 0.422 KeVC. 2.02 MeVD. 0.511 MeVE. None of these
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D
3. According to the theory of relative mass of an object is …A. depends on particlesB. volume of an objectC. speed of lightD. area of an objectE. None of these
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C
4. Which phenomenon is best explained by the particle nature of light?A. The photoelectric effectB. PolarizationC. The Doppler EffectD. InterferenceE. None of these
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A
5. Which color of light has the greatest energy per photon?A. violetB. greenC. blueD. both A & BE. None of these
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A
6. An infinite mass would require an infinite_________ to accelerate it.A. EnergyB. LightC. PowerD. ForceE. None of these
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D
7. The Compton effect confirms:A. Wave nature of lightB. Dual nature ofC. Particular nature D. Both A & CE. None of these
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C
8. Elementary particles are the basic building blocks for which of the followings?A. SolidsB. LiquidsC. GasesD. MatterE. None of these
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D
9. At constant pressure, the graph between V and T is?A. Straight lineB. ParabolaC. HyperbolaD. EllipseE. None of these
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A
10. An isothermal process is carried out at constant …?A. EnergyB. VolumeC. TemperatureD. PressureE. None of these
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C
11. The polarization of light shows that light waves are …… in nature.A. TraverseB. LongitudinalC. None of theseD. Both A & BE. None of these
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A
12. Bend of light rays or image in a denser medium is commonly called …?A. RefractionB. ReflectionC. TranspirationD. OperationE. None of these
