MEDIUM
8th CBSE
IMPORTANT
Earn 100

Why do pupils dilate in darkness?

Important Questions on Light

EASY
8th CBSE
IMPORTANT
The same size image in all positions of the object is obtained by a _____.
EASY
8th CBSE
IMPORTANT
When two plane mirrors are placed at an angle of 60 degrees to each other the images formed are _____.
MEDIUM
8th CBSE
IMPORTANT
Short-sightedness in the human eye can be corrected by using _____.
MEDIUM
8th CBSE
IMPORTANT
Long-sightedness in the human eye can be corrected by using a _____.
MEDIUM
8th CBSE
IMPORTANT
While looking for the image in undisturbed water, Robin found some colourful reflections on the surface of the water. What may be the reason?
MEDIUM
8th CBSE
IMPORTANT
A doctor was examining his patient for ailment in eye. Doctor focussed light from a brightly lit torch on the pupil of the patient. The patient yelled he is unable to see the light from the torch. What may be the reason?