Advertisements
Advertisements
प्रश्न
Why do the component colours of incident white light split into a spectrum while passing through a glass prism, explain
Advertisements
उत्तर
The splitting of a beam of white light into its seven constituent colours, when it passes through a glass prism, is called the dispersion of light.
When a beam of white light enters a prism, it gets refracted and splits into its seven constituent colours, viz. violet, indigo, blue, green, yellow, orange, and red. This splitting of the light ray occurs because of the different angles of bending for each colour. Hence, each colour while passing through the prism bends at different angles with respect to the incident beam. This gives rise to the formation of the colour spectrum.
APPEARS IN
संबंधित प्रश्न
Draw a ray diagram to explain the term angle of deviation.
Which is refracted most by a prism : red light or violet light? Explain why?
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
An object AB is placed in front of a convex lens as shown in fig. 4. Complete the ray diagram and obtain the image formed and state the nature of the image.
Rainbow is a beautiful natural phenomenon. It is the combined effect of a natural three processes together produced by light. Write it into the circle.
State the correct sequence (1-7) of colours in the spectrum formed by the prisms A and B, shown in the following figure.
The periscope is an optical device with a polished surface that reflects the light falling on it.
The dispersive powers of flint glass and crown glass are 0.053 and 0.034, respectively and their mean refractive indices are 1.68 and 1.53 for white light. Calculate the angle of the flint glass prism required to form an achromatic combination with a crown glass prism of refracting angle 4°:
In the following diagram showing dispersion of white light by a glass prism, the colours 'P' and 'Q’ respectively are:
