If both object distance 'u' and image distance 'v' from a concave mirr – McqOptions

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1.	If both object distance 'u' and image distance 'v' from a concave mirror is -20 cm and both object size and image size is 4 cm, then what is the radius of curvature 'R' of the mirror?
A.	-18 cm
B.	-15 cm
C.	-10 cm
D.	-20 cm
Answer» E.

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