# Physics MCQ Questions Answers General Knowledge Set

## Physics GK Questions Answer – General Knowledge MCQ

Physics, the fundamental science that seeks to uncover the laws governing the universe, is a fascinating and intricate field. From the tiniest subatomic particles to the vast expanse of the cosmos, physics provides insights into the nature of reality. Whether you’re a student delving into the subject or a curious mind eager to challenge your understanding, multiple-choice questions (MCQs) offer an engaging way to test and enhance your knowledge. In this article, we’ll explore a variety of physics MCQ questions and answers that cover different aspects of the subject.

Practice Set Number

1) Number of basic SI unit is:

a) 4

b) 7

c) 6

d) 5

Option – b)

2) Which of the following is not the unit of energy:

a) Calorie

b) Joule

c) Electron volt

d) Watt

Option – d)

3) Light year is unit of:

a) time

b) Speed of light

c) distance

d) mass

Option – c)

4) Which of the following is the example of ideal black body

a) kajal

b) black board

c) a pin hole box

d) none of these

Option – c)

5)The best conductor of heat among the following is-

a) Alcohol

b) Mercury

c) Ether

d)Water

Option -b)

6) The rest mass of a photon is

a) very small

b) very large

c) zero

d) dependent on velocity

Option – c)

7) The zero layer in the atmosphere is at a height of about

a) 25km

b) 50 km

c) 100km

d) 200km

Option -b)

8) Dioptere is the unit of—

a) power of a lens

b) focal length of a lens

c) light intensity

d) sound intensity

Option -a)

9) The unit of luminous efficiency of an electric bulbs is

a) watt

b) lumen

c) lux

d) lumen/watt

Option – d)

10) What is the maximum number of different electrical combination possible with three equal resistances?

a) 2

b) 3

c) 4

d) 5