1.

A spherical mirror produces an image of magnification -1 on a screen placed at a distance of 50 cm from the mirror i) write the type of mirror usedii) find the distance of the image from the imageiii) what is the focal length of the mirror

Answer» It's concave mirror

m= -v/u=-1 =>v=50

1/v+1/u=1/f=> f=25


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