Question

8. In the figure given below, a narrow beam of
white light is shown to pass through a
triangular glass prism. After passing through
the prism, it produces a spectrum XY on the
screen.
Y
Х
(i) Name the phenomenon.
(ii) State the colours seen at X and Y.
(iii)Why do different colours of white light
bend at different angles through a prism?


please answer this question pls​

Answer 1

Answer:

i) The phenomenon is Scattering or dispersion of white light.

ii) The colours seen is VIBGYOR ( Violet , Indigo , Blue , Green , Yellow , Orange and Red )

iii) It is because the speed of the lights are different in the prism and in the air , Red has the most speed and Violet has the least speed.

hope it helps you

Answer 2

Answer:

1 - dispersion of light

2 - Y - violet

X - red

3 - it is because different colours of light have different speed in different mediums