Physics General Knowledge Questions and Answers - 1

Question: 1

Tube light is filled with

(A) Mercuric oxide and argon gas

(B) Sodium vapour

(C) Mercury vapour a low pressure

(D) Argon gas at a low pressure

Question: 2

Scent sprayer is based on

(A) Bernoulli’s  principle

(B) Charles’s law

(C) Archimedes’ principle

(D) Boyle’s law

Question: 3

The speed at which light travels in vacuum is

(A) 5 x 10 ^-18 ms^-1

(B) 3 x 10 ⁴ ms^-1

(C) 3 x 10 ⁸ ms^-1

(D) 3 x 10 ¹⁸ ms^-1

Question: 4

Which one of the following pairs does not have the same dimension

(A) Density and specific gravity

(B) Focal length and height

(C) Potential energy and kinetic energy

(D) Gravitational force and friction force

Question: 5

For shaving which type of mirror is used

(A) spherical mirror

(B) plane mirror

(C) convex mirror

(D) concave mirror