EASY
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What is the pole of a spherical mirror?

Important Questions on Light

EASY
A spherical mirror and a thin spherical lens each of focal length -10 cm are given. The mirror and lens are likely to be:
EASY
Define the radius of curvature of the spherical mirror.
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What is meant by the pole of a spherical mirror?

MEDIUM

Correct relation between radius of curvature(R) and Focal length (F) of a spherical mirror is:

EASY
Define the principal focus of a concave mirror.
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_____ is located behind a convex mirror :
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The distance between pole and principal focus of a spherical mirror is called
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A student holding a mirror in his hand, directed the reflecting surface of the mirror towards the Sun. He then directed the reflected light on to a sheet of paper held close to the mirror.

Which type of mirror does he have?

EASY
Define the centre of curvature of the spherical mirror?
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Define the focal length of a spherical mirror.
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A concave mirror forms an enlarged, erect, virtual image of an object, only when the object is placed
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Define the radius of curvature of a spherical mirror.
EASY
When an object is kept within the focus of a concave mirror, an enlarged image is formed behind the mirror. This image is:
MEDIUM
An object is placed at a distance of 10 cm. From a convex mirror of focal length 15 cm. The position and nature of the image are :
EASY
A student holding a mirror in his hand, directed the reflecting surface of the mirror towards the Sun. He then directed the reflected light on to a sheet of paper held close to the mirror.

What should he do to burn the paper?

HARD
Draw the ray diagram of image formation by a convex mirror when the object is placed at its centre of curvature.
EASY
If the image formed by a spherical mirror for all positions of the object placed in front of it is always erect and diminished, what type of mirror is it ? Draw a labelled ray diagram to support your answer. 
MEDIUM

What will be the angle of incidence when a ray of light passes through the centre of curvature of a concave mirror?

EASY
Does focal length of a spherical mirror changes when it is completely immersed in water? Predict and write the reason.
MEDIUM

A student holding a mirror in his hand, directed the reflecting surface of the mirror towards the Sun. He then directed the reflected light on to a sheet of paper held close to the mirror.

Will he be able to determine the approximate value of focal length of this mirror from this activity ? Give reason and draw ray diagram to justify your answer in this case.