Question

Object is beyond c of a concave mirror magnification in this case is ( ). A) -1<m<0 B). -1. C)0<m<1. D) +1​

Answer 1

Answer:

Option(A) -1<m<0

Step-by-step explanation:

Let distance of object from pole be U, distance of image from pole be V, focal distance be f, c be the centre of curvature and m be its magnification.

w.k.t., magnification of mirror, m = -v/u = -(-V)/(-U) = -V/U

Also, since the object is placed beyond c of the concave mirror. Therefore, the image is formed between f and c.

⇒ U>2f and f<V<2f

⇒ m will be less than 1 in magnitude.

Also, m is negative.

∴ -1<m<0

So, option(A) is correct.