Light from sun falls on a glass slab.The speed of light in the glass will_
Answers
Answer:
To trace the path of a ray of light passing through a rectangular glass slab for different angles of incidence and to measure the angle of incidence, angle of refraction and angle of emergence and interpret the result.
When light travels from one medium to another medium, it generally bends or refracts. The law of refraction gives us a way of predicting the amount of bend. The law of refraction is also known as Snell's law, named after Willobrord Snell, who discovered the law in 1621.
Snell's law gives the relationship between angles of incidence and refraction for a wave impinging on an interface between two media with different indices of refraction.
Explanation:
Took it from goog.le
Answer:
As we know that the value of the refractive index is 1 for air and 1.5 for glass. So the speed of light in air = Vair=3×1081=3×108 m/s. And the speed of light in glass slab = Vglass=3×1081.5=2×108 m/s. So as we see that the speed of light in glass slab is smaller compared to that in air.