MEDIUM
10th CBSE
IMPORTANT
Earn 100

What is the Rayleigh’s law of scattering?

Important Questions on The Human Eye and Colourful World

EASY
10th CBSE
IMPORTANT
Explain the refraction of light through a glass prism with a labelled ray diagram. 
EASY
10th CBSE
IMPORTANT
A student sitting at the back of the classroom cannot read clearly the letters written on the blackboard. What advice will a doctor give to her?
MEDIUM
10th CBSE
IMPORTANT
A person's far point is 3 metres and his near point is 50 cm. Find the nature, power of the lens he must use to read a book kept at the least distance of distinct vision.
EASY
10th CBSE
IMPORTANT
A person's far point is 3 metres and his near point is 50 cm. Find the nature, power of the lens he must use to see birds flying at a large distance.
EASY
10th CBSE
IMPORTANT
14 years old student is not able to see the questions written on a blackboard placed at a distance of 5 m from him. Name the defect of vision, he is suffering from.
MEDIUM
10th CBSE
IMPORTANT
14 years old student is not able to see the questions written on a blackboard placed at a distance of 5 m from him. With the help of labelled ray diagram show how this defect can be corrected.
EASY
10th CBSE
IMPORTANT
14 years old student is not able to see the questions written on a blackboard placed at a distance of 5 m from him. Name the type of lens used to correct this defect.