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When a ray of light travels from air to glass slab and strikes the surface of separation at 90°, then it …………….
(a) bends towards normal
(b) bends away from normal
(c) passes unbent
(d) passes in zigzag way
Concept: Refraction of Light Through a Rectangular Glass Block
When a ray of light travels from air to glass slab and strikes the surface of separation at 90°, then it …………….
(a) bends towards normal
(b) bends away from normal
(c) passes unbent
(d) passes in zigzag way
Concept: Refraction of Light Through a Rectangular Glass Block
Explain how spectrum is formed.
Concept: Refraction of Light Through a Rectangular Glass Block
Explain how spectrum is formed.
Concept: Refraction of Light Through a Rectangular Glass Block
When rays of light are incident on a glass slab then the incident ray and emergent ray are _________ each other.
- perpendicular
- parallel
- opposite
- concurrent
Concept: Refraction of Light Through a Rectangular Glass Block
When rays of light are incident on a glass slab then the incident ray and emergent ray are _________ each other.
- perpendicular
- parallel
- opposite
- concurrent
Concept: Refraction of Light Through a Rectangular Glass Block
What is a spectrum?
Concept: Refraction of Light Through a Rectangular Glass Block
What is a spectrum?
Concept: Refraction of Light Through a Rectangular Glass Block
Write a short note on dispersion of light.
Concept: Refraction of Light Through a Rectangular Glass Block
Write a short note on dispersion of light.
Concept: Refraction of Light Through a Rectangular Glass Block
Define refraction and state the laws of refraction.
Concept: Refraction of Light Through a Rectangular Glass Block
Define refraction and state the laws of refraction.
Concept: Refraction of Light Through a Rectangular Glass Block
| Column I | Column II | Column III | |
| 1 | Dispersion | Long-sightedness | Twinkling of stars |
| 2 | Refraction | Splitting of white light into component colours | Convex lens |
| 3 | Hypermetropia | Change in the direction of the ray of light due to change in medium | Spectrum of seven colours |
Concept: Refraction of Light
Explain how the formation of a rainbow occurs.
Concept: Refraction of Light Through a Rectangular Glass Block
Explain how the formation of a rainbow occurs.
Concept: Refraction of Light Through a Rectangular Glass Block
Why do we get a spectrum of seven colors when white light is dispersed by a prism?
Concept: Refraction of Light Through a Rectangular Glass Block
Why do we get a spectrum of seven colors when white light is dispersed by a prism?
Concept: Refraction of Light Through a Rectangular Glass Block
Observe the following figure and answer the questions given under it:
1) How many times does refraction take place in the above figure?
2) What happens to the ray of light when it passes from air to glass?
3) What happens to the ray of light when it passes from glass to air?
4) What are the rays AB and CD in the figure called?
5) Define refraction.
Concept: Refraction of Light Through a Rectangular Glass Block
Observe the following figure and answer the questions given under it:
1) How many times does refraction take place in the above figure?
2) What happens to the ray of light when it passes from air to glass?
3) What happens to the ray of light when it passes from glass to air?
4) What are the rays AB and CD in the figure called?
5) Define refraction.
Concept: Refraction of Light Through a Rectangular Glass Block
Observe the figure and write accurate conclusion regarding refraction of light.
Concept: Refraction of Light Through a Rectangular Glass Block
