Physics Past Papers NTS Test MCQs With Answers

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Physics Solved MCQs Online Quiz Test

Q.1: Which one of the following radiation possesses maximum penetrating power ?

  1. X-rays
  2. B-rays
  3. γ-rays
  4. All have the equal penetrating powe

D

Q.2: Electrons———?

  1. Can exist inside the nucleus
  2. Cannot exist inside the nucleus
  3. Can exist both inside and outside the nucleus
  4. Do not know

D

Q.3: Radioactivity is a — (A) Spontaneous activity (B) Chemical property——-?

  1. A And B
  2. B And C
  3. C And A
  4. A B And C

C

Q.4: The energy liberated when one atom of U-235 undergoes fission reaction is——–?

  1. 200MeV
  2. 40MeV
  3. 30MeV
  4. 20MeV

A

Q.5: Transuranic elements have an atomic number——–?

  1. Greater than 72
  2. Greater than 82
  3. Greater than 92
  4. Greater than 102

C

Q.6: Nuclear forces exist between ———-?

  1. Proton-proton
  2. Proton-neutron
  3. Neutron-neutron
  4. All of the above

D

Q.7: Mass defect per nucleon is ———-?

  1. The binding energy of the nucleus
  2. Packing fraction
  3. The average energy of the nucleus
  4. All of above are one and the same thing

B

Q.8: The bombardment of nitrogen with alpha particles will produce——-?

  1. Neutron
  2. Proton
  3. Electron
  4. Positron

B

Q.9: The diameter of an atom is approximately——–?

  1. 10-12m
  2. 10-11m
  3. 10-10m
  4. 10-14m

C

Q.10: Radioactive decay obeys which one of the following law ?

  1. N=Noe-λt
  2. N=Noeλt
  3. N=Noe-λt/2
  4. No=N(1+eλt)

A