Advertisements
Advertisements
Question
Observe the given figure and write appropriate phenomenon of light in the box.

Advertisements
Solution
Dispersion of light
APPEARS IN
RELATED QUESTIONS
Study the following figure in which a student has marked the angle of incidence (∠i), angle of refraction (∠r), angle of emergence (∠e), angle of prism (∠A) and the angle of deviation (∠D). The correctly marked angles are

(a) ∠A and ∠i
(b) ∠A, ∠i and ∠r
(c) ∠A, ∠i, ∠e and ∠D
(d) ∠A, ∠i, ∠r and ∠D
The path of a ray of light passing through a glass prism is shown below:

In this diagram, the angle of prism, angle of incidence, angle of emergence and angle of deviation, respectively, have been represented by:
(A) O, Y, Z and N,
(B) P, Y, M and Z,
(C) O, X, M and Z,
(D) P, X, Z and N.
As light rays emerge from a glass prism into air, are they refracted towards or away from the normal?
Name the process which is involved in the formation of a rainbow.
The coloured light having the maximum speed in glass prism is:
(a) blue
(b) green
(c) violet
(d) yellow
How does the speed of light determine the optical density of a medium?
A ray of white light falls on a prism. Draw a ray diagram to show that the prism disperses the white light.
Complete the ray diagram given below to show the nature of light produced on the screen.
The completed ray diagram is as shown below:

Make the correct choice for each of the following:
Which one of the following Fig correctly shows the path of the ray through the glass block?
Differentiate between a glass slab and a glass prism.
Suggest one way, in each case, by which we can detect the presence of Infrared radiations.
Which of the following is a natural phenomenon which is caused by the dispersion of sunlight in the sky?
The splitting of white light into its component colours is called ____________.
______ colour is deviated the least in the spectrum of white light obtained with a glass prism.
In the following diagram showing dispersion of white light by a glass prism, the colours 'P' and 'Q’ respectively are:

A ray of light is incident at 45° on an equilateral prism in the diagram below.

- Name the phenomenon exhibited by the ray of light when it enters and emerges out of the prism.
- State the cause of the above phenomenon mentioned by you.
Observe the given diagram and answer the questions:

- Name the process shown in the figure.
- Name the colour that deviates the most.
- Name the colour that deviates the least.
- Name any one phenomenon in nature which is based on the above process.
- Define ‘spectrum’.
