Question

When we enter a dark room coming from outside, immediately the things inside the room do not appear clear to our eyes. This is because i) pupils do not open at all in the dark. Ii) pupils take time to adjust. Iii) light travels slower in a dark room. Iv) pupils open very quickly in the dark?

Answer 1

Answer:

light travels slower in a dark room

Answer 2

When we enter a low light situation coming from a high light situation , immediately the things inside the room do not appear clear to our eyes.This is because (ii) THE PUPIL TAKES TIME TO ADJUST.

• When we are outside i.e, in a high light situation, our pupil become smaller so that the needed intensity of light will pass on .
• Therefore when we enters in a dark room coming from outside our pupil takes time to increase the size of pupil ,so that  needed intensity of light will pass on .