Textbook ExpertVerified Tutor
18 Nov 2021
Given information
It is given that the radius of concave mirror R = 21 cm and we get final image at infinity.
Step-by-step explanation
Step 1.
There are certain distance at which the object should be placed to get a desired distance of the image. In this case we need image to be at infinity then the object should be placed at Focal length of the concave mirror.
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