Question

name the type of lens if it's power is -2.OD .find the focal length of this lens?.​

Answer 1

Answer:

P = -2.0D

=>f(cm) =

$\frac{ - 100}{2}$

=>f(cm)= -50cm

it is concave lens

PLZ mark me as BRAINLIEST

Answer 2

Focal length

=1/power

=-1/2

=-0.5m

Since focal length is -ve , it is diverging or concave lens.

Thank You

Please mark it the brainliest answer.