Advertisements
Advertisements
प्रश्न
Draw a neat and labelled diagram for dispersion of light.
Advertisements
उत्तर
APPEARS IN
संबंधित प्रश्न
As light rays pass from air into a glass prism, are they refracted towards or away from the normal?
In the formation of spectrum of white light by a prism:
- which colour is deviated least?
- which colour is deviated most?
What happens when a ray of ordinary light is passed through a triangular glass prism?
What is spectrum?
Draw a diagram to show how white light can be dispersed into a spectrum by using a glass prism. Mark the various colours of the spectrum.
Make two diagrams to explain refraction and dispersion.
A beam of white light is shone onto a glass prism. The light cannot be:
(a) deviated
(b) dispersed
(c) focused
(d) refracted
Which of the following colour of white light has the least wavelength?
(a) red
(b) orange
(c) violet
(d) blue
The seven colours in the spectrum of sunlight in order, are represented as :
In figure AO is the ray of white light falling on a prism PQR. Complete the diagram till the light emerges out from the prism and falls on the screen.
Explain the cause of dispersion of white light through a prism.
The phenomenon of splitting of light into its component colours is ___________ .
Which characteristic property of light is responsible for the blue colour of the sky?
Distinguish between an impure spectrum and a pure spectrum.
In the figure, a beam of light consisting of three colours blue, red, and yellow is incident on a prism and on a rectangular glass block respectively. Complete the diagram by drawings of the refracted and emergent rays.
Match the Columns:
| Column ‘A’ | Column ‘B’ |
| The wavelength of red light | (a) 600 nm |
| (b) 700 nm | |
| (c) 500 nm |
What is a rainbow?
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.
