Question

Define magnification of a spherical mirror?

Answer 1

There is a ratio of the image size to the object size; that is called the magnification factor of the spherical mirror. That means the image size does not have to be the exact size of the original object-just a ratio.

Answer 2

Answer:

• It is the height of the image and height of the object.

• m = Height of image / height of object

$\\ \implies\large{ \underline{ \boxed{ \sf{ \pink{m = \frac{h_i}{h_o} }}}}}$

Also,

$\\ \sf \: m = \frac{ - v}{u}$

• If 'm' is negative, image is real.

• If 'm' is positive, image is virtual.

• If $\sf{h}_{i}$ = $\sf{h}_{o}$ then m = 1 i.e. image is equal to object.

• If $\sf{h}_{i}$ > $\sf{h}_{o}\:$ then m > 1 i.e., image is enlarged.

• If $\sf{h}_{i}$ < $\sf{h}_{o}\:$ then m < 1 i.e., image is diminished.