Splitting of white light into seven colours on passing through a glass prism is due to
Why do stars twinkle?
Why does the sky appear to be dark
The change in focal length of eye lens is caused by action of
At noon the sun appears white as
Which of the following statement is correct regarding the propagation of light of different colours of white light in air?
Why is a normal eye not able to see clearly
What is meant by power of accommodation of the eye?
A student has difficulty in reading the blackboard while sitting in the last row
When ciliary muscles are relaxed, focal length of eye lens is
The far point of a myopic person is 80cm in front of the eye
Why does the sun appear reddish early in the morning
The size of the pupil of the eye is adjusted by
The human eye forms the image of an object at its
Explain, why the planets do not twinkle?
What is the far point and near point of the human eye with normal vision
The human eye can focus objects at different distances by
What happens to the images distance in the eye when we increase the distance
The least distance of distinct vision for a young
Make a diagram to show how hypermetropia is corrected
A person uses a lens of power +3D to normalise vision.
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