Advertisements
Advertisements
Question
Name any two phenomena which take place in the formation of a rainbow.
Advertisements
Solution
The formation of a rainbow involves all three phenomena: Refraction, Dispersion and Total internal reflection.
APPEARS IN
RELATED QUESTIONS
The figure shows a ray of light falling normally on the face AB of an equilateral glass prism having refractive index`3/2`, placed in water of refractive index `4/3`.Will this ray suffer total internal reflection on striking the face AC? Justify your answer.

Name two factors which affect the critical angle for a given pair of media. State how do the factors affect it.
Prove the statement.
A rainbow is the combined effect of the refraction, dispersion, and total internal reflection of light.
If a light ray does not undergo, refraction at the boundary between two media, the angle of incidence is:
Make the correct choices for each of the following :
Total Internal reflection takes place when
(where ∠i = angle of incidence, ∠r = angle of refraction, ∠C = critical angle)
Choose the correct option.
Consider the following phenomena/ applications: P) Mirage, Q) rainbow, R) Optical fibre and S) glittering of a diamond. Total internal reflection is involved in
Describe the construction and working of an optical fibre.
Solve Numerical example.
From the given data set, determine angular dispersion by the prism and dispersive power of its material for extreme colours. nR = 1.62 nV = 1.66, δR = 3.1°
The entire light is reflected back into the denser medium is called ______.
The diagram below shows a fish in the tank and its image seen on the surface of the water.

Name the phenomenon responsible for the formation of this image.
