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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.

Which one of the following is nearly monochromatic light ?

A light form fluorescent tube

B light form neon lamp

C light form sodium lamp

D light form simple lamp

Review Detailed Answer

Correct Answer: light form sodium lamp

A point source of light placed in a homogeneous medium gives rise to ___________________?

A a cylindrical wave front

B an elliptical wave front

C a spherical wave front

D a plane wave front

Review Detailed Answer

Correct Answer: a spherical wave front

Longitudinal waves do not exhibit _____________________?

A reflection

B refraction

C diffraction

D polarization

Review Detailed Answer

Correct Answer: polarization

Photoelectric effect was given by ____________________?

A Hertz

B Fresnel

C Einstein

D Plank

Review Detailed Answer

Correct Answer: Einstein

Which one of the following properties of light does not change with the nature of the medium ?

A velocity

B wavelength

C amplitude

D frequency

Review Detailed Answer

Correct Answer: frequency

In double slit experiment we observe _____________________?

A interference fringes only

B diffraction fringes only

C both interference and diffraction fringes

D polirized frringes

Review Detailed Answer

Correct Answer: both interference and diffraction fringes

Optical active crystals rotates the __________________?

A vibrating plane

B polarization plane

C diffraction plane

D interference plane

Review Detailed Answer

Correct Answer: polarization plane

Which one of the following bulbs has the least resistance ?

A 100 watt

B 200 watt

C 300 watt

D 60 watt

Review Detailed Answer

Correct Answer: 300 watt

A fuse is placed in series with the circuit to protect against__________________?

A high power

B high voltage

C high current

D over heating

Review Detailed Answer

Correct Answer: over heating

Electrical energy is converted to heat at the rate of___________________?

A IRt

B I2R

C I2Rt

D VIt

Review Detailed Answer

Correct Answer: I2R

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Physics 914 MCQs [All-Courses]

All Topics 914

All Topics 914

Which one of the following is nearly monochromatic light ?

A point source of light placed in a homogeneous medium gives rise to ___________________?

Longitudinal waves do not exhibit _____________________?

Photoelectric effect was given by ____________________?

Which one of the following properties of light does not change with the nature of the medium ?

In double slit experiment we observe _____________________?

Optical active crystals rotates the __________________?

Which one of the following bulbs has the least resistance ?

A fuse is placed in series with the circuit to protect against__________________?

Electrical energy is converted to heat at the rate of___________________?