TNPSC Heat, Light, Sound MCQS Questions | Study Notes - 2

Question: 6

Total internal reflection can take place when light travels from

(A) Air to glass

(B) Air to water

(C) Water to glass

(D) Diamond to glass

Question: 7

For an astronaut in a space ship, the sky appears

(A) Blue

(B) Green

(C) White

(D) Black

Question: 8

The chemical part of the dye that absorbs light and produces colour is called

(A) A pigment

(B) A photo chrome

(C) Neon

(D) A chromophore

Question: 9

A laser beam is always

(A) A parallel beam

(B) A divergent beam

(C) A convergent beam

(D) None of these

Question: 10

A red flower kept in green light will appear

(A) Black

(B) Red

(C) Black

(D) Green