TNPSC Group 1, 2, 2a, 4, VAO Important Questions & Answers 2020-21 - 1

Question: 1

Camberts, law is related to

(A) Illumination

(B) Interference

(C) Reflection

(D) Refraction

Question: 2

An air bubble in water will act like a

(A) Concave lens

(B) Concave mirror

(C) Convex lens

(D) Convex mirror

Question: 3

Panchromatic photographic film is sensitive to

(A) Light of red colour

(B) Light of yellow colour

(C) Light of violet colour

(D) The entire region of the visible spectrum

Question: 4

The nature of image formed by a plane mirror is

(A) Of the same size as the object

(B) Virtual and erect

(C) Laterally inverted

(D) All of the above are correct

Question: 5

An object is placed between two parallel mirrors. The number of images formed is

(A) 4

(B) 6

(C) 8

(D) Infinite