Question

the magnification of convex lens is +2. if a chalk piece of height 5cm is kept in front of the lens what is the height of the image​

Answer 1

Answer:

.

$magnification \: = \frac{height \: of \: the \: image}{height \: of \: the \: object}$

$m = + 2$

$height \: of \: the \: object = 5cm$

$magnification \: = \frac{height \: of \: the \: image \: }{height \: of \: the \: object}$

$2 = \frac{height \: of \: the \: i mage}{5}$

$height \: of \: the \: image = \frac{2}{5}$

$height \: of \: the \: image \: = 0.4cm$