Physics
The diagram below shows a fish in the tank and its image seen in the surface of water.

(a) Name the phenomenon responsible for the formation of this image.
(b) Complete the path of the ray through the glass prism of critical angle 42° till it emerges out of the prism.

Refraction Plane Surfaces
ICSE Sp 2024
130 Likes
Answer
(a) Total Internal Reflection
Reason — The image of the fish seen at the surface of water is due to total internal reflection as shown in the ray diagram below:

(b) Below diagram shows the completed path of the ray till it emerges out of the prism:

Answered By
86 Likes
Related Questions
A solid of mass 60 g at 100°C is placed in 150 g of water at 20°C. The final steady temperature is 25°C. Calculate the heat capacity of solid?
[sp. heat capacity of water = 4.2 J g-1 K-1 ]
What is a nuclear waste? State one method to dispose it safely.
(a) The refractive index of water is 1.33 at a certain temperature. When the temperature of water is increased by 40°C, the refractive index changes to 'x'. State whether x < 1.33 or x > 1.33.
(b) State two differences between normal reflection and total internal reflection.
The below diagram shows that an observer sees the image of an object O at I.
(a) Name and define the phenomenon responsible for seeing the image at a different position.
(b) State the effect on X when:
- Y increases
- Y decreases