Advertisements
Advertisements
प्रश्न
When a beam of white light is passed through a prism, it splits to form lights of seven colours. Is it possible to recombine the lights of seven colours to obtain the white light again? Explain your answer.
उत्तर
When a beam of white light is passed through a prism, it splits to form lights of seven colours. It is possible to recombine the lights of seven colours to obtain white light again.
Recombination of colours to form white light again is possible if a second glass prism is placed upside down behind the first prism. A patch of white light is obtained on a screen placed behind the second prism because the refraction produced by the second prism is equal and opposite to the refraction produced by the first prism.
APPEARS IN
संबंधित प्रश्न
Study the following diagrams in which the path of a ray of light passing through a glass prism as traced by four students P, Q, R and S is shown:
The student who has traced the path correctly is
(A) P
(B) Q
(C) R
(D) S
In the formation of spectrum of white light by a prism:
which colour is deviated least?
In the formation of spectrum of white light by a prism:
which colour is deviated most?
The seven colours in the spectrum of sunlight in order, are represented as :
While performing the experiment to trace the path of a ray of light passing through a glass prism, four students marked the incident ray and the emergent ray in their diagrams in the manner shown below. 
(A) I
(B) II
(C) III
(D) IV
How can the presence of ultraviolet radiation be detected?
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.
The sunlight can be split into its constituent colors using ______.
Which one of the following is involved for the formation of rainbow in the sky?
State the colour which bends:
- The most.
- The least while passing through a glass prism.
