| | - Teacher Name : Rakesh
- Total Questions : 22
- Time Allowed : 60
- Total Marks : 22
Q 1 :The colour of light that refrats the most while passing through a prism is Q 2 :The splitting of whit light into its component colours is called Q 3 :Which of the following is a natural phenomenon which is caused by the dispersion of sunlight in the sky? Q 4 :At noon, the Sun appears white as Q 5 :Which of the following colours is least scattered by fog, dust or smoke? Q 6 :The stars appear to twinkle due to the phenomenon of Q 7 :Blue colour of the sky is due to the phenomenon of Q 8 :When white light enters a prism, it gets split into its constituent colours. This is because Q 9 :Refraction of light by the earth's atmosphere due to variation in air density at different heights is called Q 10 :The deflection of light rays by minute particles and molecules of the atmosphere in all directions is called Q 11 :One cannot see clearly through the fog because Q 12 :The three primary or basic colours are Q 13 :Name the scientist who was the first to use a glass prism to obtain the spectrum of sunlight. Q 14 :Twinkling of stars is due to atmospheric Q 15 :The layer of atmosphere whose temperature is less than a hotter layer behaves as an optically Q 16 :When a beam of white light falls on a glass prism, the colour of light which will deviate the least is Q 17 :The bluish- colour of water in deep sea is due to Q 18 :The clear sky appears blue because Q 19 :A red rose when seen in green light appears Q 20 :A beam of whit light is shone onto a glass prism. The light cannot be Q 21 :The colour of white light which suffers the maximum bending ( or maximum refraction) on passing through a glass prism is Q 22 :Which of the following colours of light has the least speed in glass prism?
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