TNPSC Group 4 Physics Model Question Paper 2019-2020 - 3

Question: 11

In a spherical mirror, the line passing through the pole and the centre of curvature is known as ___

(A) principal axis

(B) pole

(C) principal focus

(D) radius of curvature

Question: 12

If the angle of incident of a ray of light on a plane mirror is 30°, then the angle of reflection is ___

(A) 30°

(B) 60°

(C) 45°

(D) 120°

Question: 13

An atom, as a whole is ____ in nature.

(A) without any charge

(B) positively charged

(C) negatively charged

(D) neutral

Question: 14

In case of violin, sound is produced by ____

(A) striking

(B) blowing air

(C) bowing

(D) rubbing

Question: 15

The image seen in the screen of a pin hole camera is ___

(A) inverted virtual image

(B) inverted real image

(C) erect and virtual image

(D) virtual image