write the minimum required apparatus and their arrangement to do the experiment of finding the focal length of a concave mirror by obtaining image of distant object
Answers
Answer:
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Explanation:
To determine focal length of a given concave mirror.
Apparatus:-
A concave mirror
A measuring scale
A screen holder
A mirror holder
A mirror stand
Answer:
Aim
To determine the focal length of:
Concave mirror
Convex lens by obtaining the image of a distant object.
Theory
How to find focal length of concave mirror?
Following are the ways to obtain the focal length of the concave mirror:
A concave mirror is defined as the spherical mirror whose reflecting surface is curved inwards and follows laws of reflection of light.
The light rays coming from a distant object can be considered to be parallel to each other.
If the image formed is real, inverted and very small in size, then the parallel rays of light meet the point in the front of the mirror.
The image formed by the convex lens is real and can be obtained on the screen.
f is used to denote the difference between the principal axis P and the focus F of the concave mirror.