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Two independent light sources cannot act...

Two independent light sources cannot act as coherent sources. Why?

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Can two independent source of light be coherent? Why ?

Assertion (A) : In Young's double slit experiemnt white light is used and slits are covered with red and blue filters respectively. The phase difference at any point on the screen will continuously change and uniform illumination is produced on the screen reason (R ) : Two independent sources of light would no longer act as coherent sources

Two inependent monochromatic sources of light are

What do you understand by coherent sources ?

Two light sources are coherent when

Can two different bulbs, similar in all respect act as coherent sources ? Give reasons for your answer.

CBSE COMPLEMENTARY MATERIAL-ELECTROMAGNETIC WAVES AND OPTICS-SHORT ANSWER QUESTION 2 MARKS
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  2. If the angle between the pass axis of polariser and analyser is 45^(@)...

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  3. When does (i) a plane mirror and (ii) a convex mirror produce real ima...

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  4. A virtual cannot be caought on a screen, Yet when we see a virtual ima...

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  5. With a neat labelled diagram, explain advanced sunrise and delayed sun...

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  6. The image of a small electric bulb fixed on the wall of a room is to b...

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  7. The angle subtended at the eye by an object is equal to the angle subt...

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  8. Two independent light sources cannot act as coherent sources. Why?

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  9. How is a wave front different from a ray? Draw the geometrical shape o...

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  10. What two main changes in diffraction pattern of a single slit will you...

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  11. You are provided with four convex lenses of focal length 1cm, 3cm, 10 ...

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  12. Give reasons for the following Sun looks reddish at sunset

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  13. Why do clouds generally look white ?

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  14. Using Huygens' principle for the wave theory of light, verify the law ...

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  15. Using Huygens' principle for the wave theory of light, verify the law ...

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  16. Water (refractive index µ) is poured into a concave mirror of radius o...

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  17. A point source S is placed midway between two converging mirrors havin...

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  18. A thin double convex lens of focal length f is broken into two equal h...

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  19. How much water should be filled in a container of height 21 cm, so tha...

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  20. A ray PQ incident on the refracting face BA is refracted in the prism ...

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