Physics NTS MCQs Online Test Preparation Solved Quizzes

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Physics online solved MCQs for upcoming jobs tests with past papers most repeated question answers online. All of these MCQs of Physics are important for interviews of Engineering and many other sectors. Physics most asked question answers for upcoming jobs tests online.
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Physics Solved MCQs Online Quiz Test

Q.1: An alpha particle can produce fluorescence in———?

  1. ZnS
  2. Barium platinocyanide
  3. Calcium tungstate
  4. All of above

D

Q.2: Pair production cannot take place in a vacuum as —- is not conserved ?

  1. Energy
  2. Charge
  3. Mass
  4. Momentum

B

Q.3: CFC is used in ———?

  1. Refrigeration
  2. Aerosol spray
  3. Plastic foam industry
  4. All of above

D

Q.4: Average distance covered by alpha particles in the air before its ionizing power ceases is called its———?

  1. Trajectory
  2. Range
  3. Firing level
  4. Limit

B

Q.5: Which one of the following possesses greater penetration power ?

  1. α-rays
  2. β-rays
  3. γ-rays
  4. Neutron-rays

D

Q.6: The most useful tracer is———?

  1. Sr-90
  2. I-131
  3. CA-41
  4. C-14

D

Q.7: X-rays are electromagnetic waves like——–?

  1. Light waves
  2. Heat waves
  3. Microwaves
  4. γ-rays

D

Q.8: The charge on beta particle is——–?

  1. 1
  2. -1
  3. +2
  4. -2

A

Q.9: Why gamma rays are used to kill bacteria to sterilize surgical equipment etc ?

  1. Chargeless
  2. Massless
  3. Highly penetrating
  4. All of above

C

Q.10: Beta particles ionize an atom———?

  1. Due to the electrostatic force of attraction
  2. Due to the electrostatic force of repulsion
  3. Due to a direct collision
  4. Due to the gravitational force

B