EASY
10th CBSE
IMPORTANT
Earn 100

How will you use two identical prisms so that a narrow beam of white light incident on one prism emerges out of the second prism as white light? Draw the diagram.

Important Questions on The Human Eye and Colourful World
MEDIUM
10th CBSE
IMPORTANT
Draw a ray diagram showing the dispersion through a prism when a narrow beam of white light is incident on one of its refracting surfaces. Also indicate the order of the colours of the spectrum obtained.

EASY
10th CBSE
IMPORTANT
Is the position of a star as seen by us its true position? Justify your answer.

MEDIUM
10th CBSE
IMPORTANT
Why do we see a rainbow in the sky only after rainfall?

EASY
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.

MEDIUM
10th CBSE
IMPORTANT
Explain the structure and functioning of human eye. How are we able to see nearby as well as distant objects?

MEDIUM
10th CBSE
IMPORTANT
When do we consider a person to be myopic or hypermetropic? Explain using diagrams 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.
