Which of the following statement is wrong? 1. Speed of light ray PQ is equal to the speed of light ray ST. 2. Speed of light ray QR is equal to the speed of light ray RS. i mi Speed of light ray PQ is greater than the speed of light ray RS. 4. Speed of light ray R is greater than the speed of light ray ST.
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Answered by
5
Answer:
4.
Explanation:
speed of light in denser medium is less than speed of light in a rare medium
Answered by
0
The wrong statement is 4. Speed of light ray RS is greater than the speed of light ray ST.
Speed of light:
- Speed of light varies from medium to medium. It is because of varying refractive index of the mediums.
- Higher refractive index will slow down the speed of light.
- Denser medium has high refractive index than rarer mediums.
- Light travels faster in rarer medium and slower in denser medium.
From the figure:
- QR and RS are two rays inside the glass prism and PQ and ST are two rays outside the glass prism i.e. in air medium.
- Glass is denser than air as the refractive index of glass is more than refractive index of air.
- So, the speed of light ray in glass will be less than the speed of light ray in air.
- Rays QR and RS will have less speed than light rays PQ and ST.
"Your question is missing the figure. You may be referring to figure in the image below."
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