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प्रश्न
When light travels from a denser to a rarer medium, its speed ______.
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उत्तर
When light travels from a denser to a rarer medium, its speed increases.
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संबंधित प्रश्न
State the speed of light in (a) air, (b) glass.
A light ray passes from water to
- air, and
- glass.
In each case, state how does the speed of light change.
The speed of light is maximum in ______.
What is the speed of light in vacuum?
Numerical problem.
Light enters from air into a glass plate having refractive index 1.5. What is the speed of light in glass? (Ans: 2 × 108 ms–1)
Higher Order Thinking Skills.
Light ray emerges from water into air. Draw a ray diagram indicating the change in its path in water.
Materials that allow light to pass through completely are known as transparent materials.
Define transparent materials.
The speed of light decreases in a denser medium, light bends towards the normal.
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.
