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प्रश्न
The speed of light in air is 3 × 108 m s-1. Calculate the speed of light in glass. The refractive index of glass is 1.5.
The refractive index of glass is 1.5. Calculate the speed of light in glass. The speed of light in air is 3 × 108 m s-1.
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उत्तर
Given:
Speed of light in air (c) = 3 × 108 m/s-1
Refractive index of glass (μ) = 1.5
Speed of light in glass, v = ?
Formula:
`c/v=μ`
`v=(3xx10^8"m/s")/1.5`
v = 2 × 108 m/s
संबंधित प्रश्न
State whether light slows down or speeds up in the following cases :
Light going from glass to water.
A light ray passes from water to
- air, and
- glass.
In each case, state how does the speed of light change.
When light travels from a denser to a rarer medium, its speed ______.
Objects that allow light to pass through partially are called ______ material.
Materials that are not able to allow light to pass through, are called ______ material.
Materials that allow light to pass through completely are known as transparent materials.
The speed of light decreases in a denser medium, light bends towards the normal.
Light is one of the slowest traveling energy with a speed of 3 × 10-8ms-1
Two medium with a refractive index of 1.31 & 1.50 is given. In which case
- The bending of light is more and
- speed of light is more.
Higher-Order Thinking Skills:
M = 2.42 for diamond. What is the meaning of this statement in relation to the speed of light?
