A student is performing an experiment with two triangular glass prisms. He places the first glass prism on its base. The second glass prism is placed upside down behind the first glass prism. When a beam of white light is allowed to fall on the first glass prism, then a patch of ordinary white light is obtained on a screen placed behind the second glass prism.
(a) Draw a ray diagram to show the above arrangement of two glass prisms and the light passing through them.
(b) What is the function of (i) first prism, and (ii) second prism, in this arrangement?
Answers
Answer:my drawing is not good..
Explanation:
First prism is to scatter the light and second is to merge the constituents of light
Explanation:
"a)Refer the ray diagram given in the attachment below.
Newton has shown that it is also possible to oppose the emission of light.
Eg:
- The two prism were close together, one in an erect position and the other in the opposite position.
- Light disperses when it passes through the first prism.
- The second prism receives the seven beams of the first prism and combines them into one white light. These observations show that the sunlight is composed of seven colors.
b) (i) The function of the first prism is to divide white light into seven colors.
(ii) The function of the second prism is to reconstitute them in white light.
You can get all the answers of Chapter 8 in the link below:
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