HARD
8th CBSE
IMPORTANT
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 Write down the names of parts of the eye in the blank spaces shown in the figure.
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Important Questions on Light

EASY
8th CBSE
IMPORTANT
 Part of the eye which controls the light entering is called 
EASY
8th CBSE
IMPORTANT
We can see a non-luminous object when light 
EASY
8th CBSE
IMPORTANT
Light is falling on surface S1, S2, S3 as shown in the figure below:
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Surfaces on which the angle of incidence is equal to the angle of reflection is/are:
MEDIUM
8th CBSE
IMPORTANT

A tiny mirror M is fixed on a piece of cardboard placed on a table. The cardboard is illuminated by light from a bulb. The position of eye with respect to position of bulb is shown in figure as A, B, C and D. In which position mirror will be visible?

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EASY
8th CBSE
IMPORTANT

 A small hole P is made in a piece of cardboard. The hole is illuminated by a torch as shown in the figure below. The ray of light coming out of the hole falls on a mirror.
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At which point should the eye be placed so that the hole can be seen?

MEDIUM
8th CBSE
IMPORTANT
Two mirrors A and B are placed at right angles to each other as shown in the figure below:
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A ray of light incident on mirror A at an angle of 25° falls on mirror B after reflection. The angle of reflection for the ray reflected from mirror B would be
EASY
8th CBSE
IMPORTANT
 Which of the following statements is correct regarding rods and cones in the human eye? 
EASY
8th CBSE
IMPORTANT
 In the figure of the human eye (in the figure shown below), the cornea is represented by the letter:
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