Q: Spherical mirror formula relating an object distance 'u', image distance 'v' and focal length of mirror 'f' may be applied to a plane mirror when
(a)focal length goes to infinity.
(b)focal length goes to zero.
(c)image distance goes to zero.
(d)image distance goes to infinity.
Correct Answer: (a)
The correct answer is (c) 'जब प्रतिदर्श दूरी शून्य होती है'. This question from the General Studies domain tests knowledge of Miscellaneous.