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What is meant by diffraction of light?...

What is meant by diffraction of light?

A

the bending of light at the surface of separation when is travels from rarer medium to denser medium

B

the bending of light at the surface of separation when is travels from denser medium to rarer medium

C

encroachment of light into the geometrical shadow of the obstacle placed in its path

D

emergence of a light ray grazing the surface of separation when it travels from denser to rarer medium

Text Solution

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The correct Answer is:
C
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AAKASH SERIES-WAVES OPTICS-EXERCISE -IA (DIFFRACTION)
  1. The phenomenon of diffraction of light was discovered by-

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  2. What is meant by diffraction of light?

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  3. Both light and sound waves suffer diffraction. Why it is more difficul...

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  4. The silver lining surrounding the profile of a mountain just before su...

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  5. When a compact disc is illuminated by a source of white light,colured ...

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  6. Which of the following statements is correct

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  7. Bright colours exhibited by spider.s web, exposed to sunlight are due ...

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  8. A plane wavefront is divided into a number of half period zones as per...

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  9. Which element is the lightest of all other solid elements ?

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  10. Two point sources of sound are kept at a separation of 10 cm. They vib...

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  11. When a beam of light is used to determine the position of an object, t...

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  12. In Fresnel.s diffraction wavefront must be

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  13. The source is at some distance from an obstacle. Distance between obst...

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  14. A very small opaque disc is placed in the path oa a monochromatic ligh...

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  15. A diffraction pattern is obtained using a beam of red light. What happ...

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  16. In a diffraction pattern the width of any fringe is

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  17. Yellow light is used in a single slit diffraction experiment with a sl...

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  18. In diffraction froma a single -slit, the angular width of the centre m...

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  19. The correct relation between limit of resolution and resolving power i...

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  20. The resolving power of electron microscope is

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