Question

What do you mean by 1 Diopter?
If Focal length of a convex mirror is 20cm ,then Find the Power of this.

(Spamming strictly prohibited)​

Answer 1

Answer:

1 D is the power of a convex lens having focal length 1 m.

f=20 cm

= 20/100 m

power= 1/ 20/100

= 100/20

= 5D

hence ur answer is 5D

please mark me as brainliest

thank u

Answer 2

Explanation:

HEY MATE .......

➡️1 dioptre of power of a lens is described as the unit of measurement of the optical power of a lens or curved mirror equivalent to the reciprocal of focal length (f).

➡️Measurement of the focal length in a meter.

➡️The SI unit of power of lens is dioptre whose focal length is one meter

➡️ which is denoted by the letter D.

➡️1 dioptre (D) = P = 1/f

1 dioptre (D) = P = 1/fWhere f = focal length......

$answer : \\ \\ the \: power \: of \: the \: \\ \\ convex \: lens \: is \: 5d \\ \\ solution : \\ \\ given : \\ \\ f = 20 |cm| = 0.2 |m| \\ \\ to \: find : \\ \\ power \: of \: the \: lens \: \\ \\ formula = p = \frac{1}{f(in \: m)} \\ \\ p = \frac{1}{0.2} \\ \\ \implies \: 5d$

HOPE IT HELPS YOU