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प्रश्न
A light ray passes from water to
- air, and
- glass.
In each case, state how does the speed of light change.
उत्तर
- When a light beam travels from water to air. There will be an increase in light speed.
- A light beam travels slower through glass than it does through water.
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संबंधित प्रश्न
Write true or false of the following statement.
The speed of light in vacuum is 3 × 108 ms-1.
State whether light slows down or speeds up in the following cases :
Light going from air to glass.
State whether light slows down or speeds up in the following cases :
Light going from glass to water.
State whether light slows down or speeds up in the following cases :
Light going from water to air.
An obliquely incident light ray bends at the surface due to a change in speed when passing from one medium to another. The ray does not bend when it is incident normally. Will the ray have a different speed in the other medium?
The speed of light is maximum in ______.
Higher Order Thinking Skills.
Light ray emerges from water into air. Draw a ray diagram indicating the change in its path in water.
Objects that allow light to pass through partially are called ______ material.
Light is one of the slowest traveling energy with a speed of 3 × 10-8ms-1
Higher-Order Thinking Skills:
M = 2.42 for diamond. What is the meaning of this statement in relation to the speed of light?
