First slide

Total internal reflection - Ray optics and optical instruments

Question

A fist looking from within water sees the outside world through a circular horizon. If the fish $\sqrt{7}$ cm below the surface of water, what will be the radius of the circular horizon

Moderate

A

3.0 cm
B

4.0 cm
C

4.5 cm
D

5.0 cm

Solution

Radius of horizon circle = $\frac{3 h}{\sqrt{7}} = \frac{3 \sqrt{7}}{\sqrt{7}} = 3 cm$

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