Question

16.
A point object is placed on the axis of the concave mirror at
a distance of 60 cm from the focal point of the mirror. Its
image is formed at the point of object, then focal length of
the mirror is
[MP PET 2007]
(a) 15 cm
(b) 30 cm
(c) 60 cm
(d) 120 cm​

Answer 1

Answer:

option 2 is right........

Answer 2

120 cm.

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