SATHEE: Optics Question 992

Optics Question 992

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

[Kerala PMT 2005]

Options:

A) 3.0 cm

B) 4.0 cm

C) 4.5 cm

D) 5.0 cm

Show Answer

Answer:

Correct Answer: A

Solution:

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

$= \frac{3 \sqrt{7}}{\sqrt{7}} = 3 c m$ .

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Optics Question 992

Question: A fist looking from within water sees the outside world through a circular horizon. If the fish 7 cm below the surface of water, what will be the radius of the circular horizon

Options:

Answer:

Solution:

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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