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Why does a metal ball coated with lamp -...

Why does a metal ball coated with lamp - black appear shining when it is immersed in water?

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CHHAYA PUBLICATION-REFRACTION OF LIGHT-EXERCISE Short Answe Type Question - II
  1. Why does a vessel filled with water appear comparatively shallow when ...

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  2. A ray of light is refracted from medium 1 to medium 2. Show that the r...

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  3. A light ray travels from vacuum into a medium of refractive index mu ....

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  4. Why is a glass rod not visible when it is immersed in glycerine?

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  5. When a rectangular glass slab is kept on a few letter of different col...

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  6. What sort of arrangement is to be taken so that an object will not be ...

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  7. Show that for an object lying under a parallel glass slab, the appare...

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  8. Stars, especially near the horizon, twinkle, but not the planets - exp...

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  9. Why do we see the sun sometime before sunrise and sometime after sunse...

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  10. If an empty test tube is immersed obliquely in water the immersed port...

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  11. a red ray and a violet ray are incident simultaneously on a glass slab...

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  12. The sun subtends an angle of 180^(@) to our eyes form sunrise to sunse...

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  13. There is air above water. Total internal reflection may take place for...

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  14. Why does the crack of a glass window shine?

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  15. Why will not the total internal reflection take place if light travels...

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  16. Why is total internal reflection called total?

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  17. Why does a metal ball coated with lamp - black appear shining when it ...

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  18. For the fish under water, the water surface appears like a huge mirror...

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  19. A ray of light is incident on a prism of refractive index mu and angle...

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  20. A light ray is incident on one refraction face of a prism, of refracti...

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