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State the speed of light in glass...

State the speed of light in glass

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The speed of light in air is 3xx10^(8)ms^(-1) . Calculate the speed of light in glass. The refractive index of glass is 1*5 .

The refractive index of glass is 1.50 and the speed of light in air is 3 x 108 ms-1 . Calculate the speed of light in glass.

How does the speed of light in glass change on increasing the wavelength of light?

A monochromatic beam of light of wavelength lamda passes from air into the glass block , write an expression to show the relation between the speed of light in air and the speed of light in glass .

The speed of light in air is 3 xx 10^8 m/s and the speed of light in glass is 2 xx 10^8 m/s. What is the refractive index of glass?

The refractive index of glass is 1.5. Find the speed of light in glass.

(a) The refractive index of glass is 1.5 . What is the speed of light in glass ? (Speed of light in vaccum is 3 xx 10^(8) ms^(-1) ). (b) Is the speed of light in glass independent of colour of light ? If not, which of the two colours, red and violet travels slower in a glass prism ?

Light is incident on a glass slab making an angle of 30^(@) with the surface. If the speed of light in air is 3 xx 10^(8) m//s and the refractive index of glass is 1.5, find: (i)the angle of refraction. (ii ) the speed of light in glass.

Refractive index of glass is (3)/(2) and refractive index of water is (4)/(3) . If the speed of light in glass is 2.00 xx 10^(8) m/s, the speed in water will be

The refractive index of glass is 1.5. The speed of light in glass is

ICSE-LIGHT ENERGY-TEST YOURSELF (SHORT/LONG ANSWER TYPE QUESTIONS)
  1. What is irregular reflection ? Give an example.

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  2. How do we see objects around us?

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  3. State two uses of a plane mirror.

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  4. Can light travel in vacuum ?

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  5. The speed of light in air is :

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  6. State the speed of light in glass

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  7. State whether light slows down or speeds up in the following cases : ...

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  8. State whether light slows down or speeds up in the following cases : ...

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  9. State whether light slows down or speeds up in the following cases : ...

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  10. What are primary colours ? Name the three primary colours.

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  11. What are secondary colours ? Name the three secondary colours.

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  12. Fill in the blanks with the appropriate colour : Blue +.............

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  13. Fill in the blanks with the appropriate colour : Red + Blue + .......

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  14. Fill in the blanks with the appropriate colour : Red + Blue = .....

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  15. Fill in the blanks with the appropriate colour : Green + Red = .....

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  16. The leaves appear green when seen in white light. Give a reason.

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  17. A rose appears red in white light. How will it appear in green light ?...

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  18. A rose appears red in white light. How will it appear in red light ? ...

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  19. Why does a piece of paper appear white in sunlight ? How would you exp...

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  20. A piece of paper appears black in sunlight. What will be its colour wh...

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