Which of the following can be the correct explanation that Pooja can give to her friends to explain this phenomenon?
Answers
Answer:
In an experiment, Pooja used a equilateral triangular glass prism and projected a narrow beam of white light source from one side of the surface of the prism. She placed a screen on the other side and saw many colours appearing as patches on the screen. But when she used a red light source, she could only see a red patch on the screen. Similarly she used a blue and green light source and could only see one colour patch on both occasions. (i) The phenomenon that she was trying to demonstrate was: A. Dispersion B. Reflection C. Refraction D. Scattering. (ii) The reason why she could no see any other colour when the red light was used was because: A. Red colour does not refract in prism. B. Red colour is monochromatic. C. The prism was defective. D. The prism is opaque to red Colour (iii) Which of the following can be the correct explanation that Pooja can give to her friends to explain this phenomenon? A. Different lights travel faster in the glass prism at different rates. B. Any light would disperse in the prism. C. Enough data is not available to make a scientific explanation in this case. D. Different wavelengths travel at different speeds in the glass. (iv) She also could relate to another natural phenomenon that we observe on a rainy humid day as the sun comes out. What could be that phenomenon? A. Lightning. B. Blueness of the sky. C. Rainbow. D. Scattering of light.Read more on Sarthaks.com - https://www.sarthaks.com/1213298/i-the-phenomenon-that-she-was-trying-to-demonstrate-was
Explanation:
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Answer:
A. Different lights travel faster in the glass prism at different rates.
B. Any light would disperse in the prism.
C. Enough data is not available to make a scientific explanation in this case.
D. Different wavelengths travel at different speeds in the glass.