Physics 914 MCQs [All-Courses]

Physics is a core science subject that deals with the study of matter, energy, motion, force, heat, light, electricity, magnetism, and modern physics concepts. It plays a vital role in competitive exams such as PPSC, FPSC, NTS, OTS, KPPSC, BPSC, AJKPSC, CSS, and PMS, where questions test conceptual understanding, numerical problem-solving, and application of laws and formulas.

When X-rays are passed through successive aluminum sheets what happens to their thickness ?

A increases

B it decreases

C it remains same

D sometimes increases and sometimes decreases

Review Detailed Answer

Correct Answer: it remains same

X-rays are electromagnetic waves like________________?

A Light waves

B Heat waves

C Microwaves

D γ-rays

Review Detailed Answer

Correct Answer: γ-rays

X-rays are similar in nature to_______________?

A Cathode rays

B Positive rays

C γ-rays

D Beta rays

Review Detailed Answer

Correct Answer: γ-rays

The most useful tracer is_________________?

A Sr-90

B I-131

C CA-41

D C-14

Review Detailed Answer

Correct Answer: C-14

In an electronic transition atom cannot emit______________?

A γ-rays

B Infra red radiation

C Visible light

D Ultraviolet rays

Review Detailed Answer

Correct Answer: γ-rays

Which one of the following possesses greater penetration power ?

A α-rays

B β-rays

C γ-rays

D Neutron-rays

Review Detailed Answer

Correct Answer: Neutron-rays

Radiation with wavelength longer than red lights______________?

A ultraviolet rays

B X-rays

C infra red radiation

D visible radiation

Review Detailed Answer

Correct Answer: infra red radiation

Average distance covered by alpha particles in the air before its ionizing power ceases is called its_________________?

A Trajectory

B Range

C Firing level

D Limit

Review Detailed Answer

Correct Answer: Range

Reverse process of photoelectric effect is_______________?

A pair production

B Compton effect

C annihilation of matter

D X-rays production

Review Detailed Answer

Correct Answer: X-rays production

CFC is used in _________________?

A Refrigeration

B Aerosol spray

C Plastic foam industry

D All of above

Review Detailed Answer

Correct Answer: All of above

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Physics 914 MCQs [All-Courses]

All Topics 914

All Topics 914

When X-rays are passed through successive aluminum sheets what happens to their thickness ?

X-rays are electromagnetic waves like________________?

X-rays are similar in nature to_______________?

The most useful tracer is_________________?

In an electronic transition atom cannot emit______________?

Which one of the following possesses greater penetration power ?

Radiation with wavelength longer than red lights______________?

Average distance covered by alpha particles in the air before its ionizing power ceases is called its_________________?

Reverse process of photoelectric effect is_______________?

CFC is used in _________________?