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प्रश्न
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उत्तर
A concave mirror forms a real image equal in size to the object when the object is kept at centre of curvature, C
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संबंधित प्रश्न
An image which can be obtained on a screen is called a ______ image.
What happens when a ray of light falls normally (or perpendiculary) on the surface of a plane mirror?
What type of image is formed:
- in a plane mirror?
- on a cinema screen?
Explain the meaning of the terms focus and focal length in case of a convex mirror, with the help of suitable ray diagram.
Write two more characteristics of the image.
Select the correct option:
Which mirror is used in periscope?
Define the following term:
convex mirror
The following Figure shows a concave mirror MM' on which a ray of light incident from a point P gets reflected to meet the principle axis at O.
(a) Find, by construction, the position of the centre of curvature of the concave mirror.
(b) Write down the value for the radius of curvature of the mirror.
(c) Calculate the focal length of the mirror.
(d ) Which relation is used in deducing the focal length from the radius of curvature?
