HARD
10th CBSE
IMPORTANT
Earn 100

A prism (with as base) is placed in different orientations. A narrow beam of white light is incident on the prism as shown in the figure. In which of the following cases, after dispersion, the third colour from the top corresponds to the colour of the sky?
(a)

(b)

(c)

(d)


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Important Questions on The Human Eye and Colourful World
EASY
10th CBSE
IMPORTANT
At noon the sun appears white as:

MEDIUM
10th CBSE
IMPORTANT
Which of the following phenomena of light are involved in the formation of a rainbow?

MEDIUM
10th CBSE
IMPORTANT
Twinkling of stars is due to atmospheric:

EASY
10th CBSE
IMPORTANT
The clear sky appears blue because:

HARD
10th CBSE
IMPORTANT
Which of the following statements is correct regarding the propagation of light of different colours of white light in the air?

EASY
10th CBSE
IMPORTANT
The danger signals installed at the top of tall buildings are red in colour. These can be easily seen from a distance because among all the colours, the red light:

EASY
10th CBSE
IMPORTANT
Which of the following phenomena contributes significantly to the reddish appearance of the sun at sunrise or sunset?

EASY
10th CBSE
IMPORTANT
The bluish colour of water in the deep sea is due to:
