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प्रश्न
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उत्तर
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संबंधित प्रश्न
An image which can be obtained on a screen is called a ______ image.
Name the spherical mirror which has:
(a) virtual principal focus.
(b) real principal focus.
Write the formula for a lens connecting image distance (v), object distance (u) and the focal length (f). How does the lens formula differ from the mirror formula?
A concave mirror forms a real image of an object placed in front of it at a distance 30 cm, of size three times the size of object. Find
- the focal length of mirror
- position of image.
Define the following term in relation to concave mirror.
Principal focus
An object 10 cm high is placed at a distance of 20 cm in front of a spherical mirror of focal length 25 cm. By scale drawing find the nature, position, and magnification of the image in the following case:
Convex mirror
The distance from the pole to the focus is called ______.
If the focal length of a spherical mirror is 10 cm, what is the value of its radius of curvature?
Geometric centre of the spherical mirror is ______.
