Question

The focal length of a concave mirror is f and the distance from the object to the principal focus is x. The ratio of the size of the image to the size of the object is –

• A. $\frac { \mathrm { f } + \mathrm { x } } { \mathrm { f } }$
• B.
• C.
• D.

Answer 1

Answer: (B)

Answer 2

here f = u + x so