Question

* A diver in a swimming pool wants to signal his distress to a person lying on the edge of the pool boy flashing his waterproof flashlight.

6) He must direct the beam vertically upward (6) He has to die the beam brontally

e) He has to direct the beam at an angle to the vertical which is slightly less than the critical angle of incidence for total internal reflection (d) He has tn direa the beam at an angle to the vertical which is tighly more than the critical angle of incidence for total internal reflection.​

Answer 1

Answer:

HII

Explanation:

Critical angle is that angle, at which the refracted ray will be at the horizon. If a diver in a swimming pool wants to signal his distress to a person lying on the edge of the pool by flashing his waterproof flash light, he has to make the incident angle less than the critical angle

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Answer 2

Answer:

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