MEDIUM
10th CBSE
IMPORTANT
Earn 100
Why do we see a rainbow in the sky only after rainfall?
Important Questions on The Human Eye and the Colourful World
MEDIUM
10th CBSE
IMPORTANT
Why is the colour of the clear sky blue?
MEDIUM
10th CBSE
IMPORTANT
What is the difference in colours of the sun observed during sunrise/sunset and noon? Give explanation for each.
HARD
10th CBSE
IMPORTANT
Explain the structure and functioning of human eye. How are we able to see nearby as well as distant objects?
HARD
10th CBSE
IMPORTANT
When do we consider a person to be myopic and hypermetropic? Explain using diagram how the defects associated with myopic and hypermetropic eye can be corrected?
MEDIUM
10th CBSE
IMPORTANT
Explain the refraction of light through a triangular glass prism using a labelled ray diagram. Hence, define the angle of deviation.
HARD
10th CBSE
IMPORTANT
How can we explain the reddish appearance of sun at sunrise or sunset? Why does it not appear red at noon?
MEDIUM
10th CBSE
IMPORTANT
Explain the phenomenon of dispersion of white light through a glass prism, using suitable ray diagram.
HARD
10th CBSE
IMPORTANT
How does the refraction take place in the atmosphere? Why do stars twinkle but not the planets?
