MEDIUM
10th CBSE
IMPORTANT
Earn 100

Explain the refraction of light through a triangular glass prism using a labelled ray diagram. Hence, define the angle of deviation.  

Important Questions on The Human Eye and Colourful World

MEDIUM
10th CBSE
IMPORTANT
How can we explain the reddish appearance of sun at sunrise or sunset? Why does it not appear red at noon?
HARD
10th CBSE
IMPORTANT
Explain the phenomenon of dispersion of white light through a glass prism, using suitable ray diagram
MEDIUM
10th CBSE
IMPORTANT
How does refraction take place in the atmosphere? Why do stars twinkle but not the planets?
EASY
10th CBSE
IMPORTANT

Shortsightedness can be corrected by using lens:

EASY
10th CBSE
IMPORTANT

Amount of light entering into the eye is adjusted by :