HARD
8th CBSE
IMPORTANT
Earn 100

_____ refers to the retention of image of an object on the retina for about 116th of a second.

60.87% studentsanswered this correctly

Important Questions on Light

MEDIUM
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 16 - Light>Put on your thinking cap>Q 1
Which of the following is not a characteristic of the image formed by a plane mirror?
MEDIUM
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 16 - Light>Put on your thinking cap>Q 2
If a ray makes an angle of 20° with the mirror, then its angle of incidence is _____ degrees. (Answer the value in numbers).
HARD
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 16 - Light>Put on your thinking cap>Q 2
Reflection by a plane, polished surface is _____ (regular/ diffused).
MEDIUM
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 16 - Light>Put on your thinking cap>Q 2
A plane mirror always forms a/an _____ (real/ erect/ inverted) image.
MEDIUM
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 16 - Light>Put on your thinking cap>Q 2
The amount of light entering the eye is controlled by _____.
MEDIUM
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 16 - Light>Put on your thinking cap>Q 2
The raindrops split sunlight to form a spectrum known as _____.
MEDIUM
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 16 - Light>Put on your thinking cap>Q 2
The screen in the eye where the image is formed is called _____.
MEDIUM
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 16 - Light>Put on your thinking cap>Q 2
The _____ spot is located where the optic nerve leaves the eye.