First slide

The lens

Question

A lens of power + 2 diopters is placed in contact with a lens of power – 1 diopoter. The combination will behave like

Moderate

A

A divergent lens of focal length 50 cm
B

A convergent lens of focal length 50 cm
C

A convergent lens of focal length 100 cm
D

A divergent lens of focal length 100 cm

Solution

$P = P_{1} + P_{2} \Rightarrow P = + 2 + (- 1) = + 1 D f = \frac{+ 100}{P} = \frac{+ 100}{1} = 100 cm$

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App