Q. 154.5( 4 Votes )

A spherical mirro

Answer :

Given: magnification, m = -1

Image distance, v =50 cm


Since magnification is negative, it means that the image formed is real and inverted.


So, v = -50 cm


magnification is given by,




Therefore, u =-50 cm


(a) As image formation is on the screen and is a real image. Therefore, the mirror will be concave mirror.


(b) The distance of the image from the object will be -50 cm.


(c) Applying the lens formula:






so, f= -25 cm


(d) The ray diagram will be as follows:



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