Physics, asked by kira1234, 18 days ago

Refractive index of glass is 1.5 . find the speed of light through the
glass . If the glass was 100m thick how much time would light take to
cross this distance? (Speed of light in vacuum is 3 X 108 m / s)

Answers

Answered by sudhirsingh0779

Answer:

Ozone layer helps in preventing the entry of harmful UV radiations on earth. ... Chloro fluoro carbons (CFC's) are synthetic chemicals responsible for depletion of ozone. Methods to reduce CFC emission. i) By reducing the use of AC, fridge , perfumes, etc.

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