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In Fresnel's diffraction, source of ligh...

In Fresnel's diffraction, source of light is located at_____ distance from the aperture (slit) [ Fill in the blank.]

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1 m = ______ light year. [ Fill in the blanks ]

A single slit produces ____diffraction [Fill in the blank.]

Intensity of all fringes in diffraction pattern are ___ [Fill in the blank.]

A light of wavelength 6000Å from a distant source falls on a narrow slit of width 0.5 mm. As a result, a diffraction fringe pattern is formed on a screen placed at a distance 2.0 m from the slit. What is the distance between first two minima points formed on the either side of central maximum of this fringe pattern.

A light of wavelength lambda falls on a narrow slit of width d.A diffraction fringe is formed on a screen placed at distance D from the slit. If the linear width of the central maximum equals to the width of the slit, will be the value of D?

The source of a spherical wavefront is ______ [Fill in the blank ].

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CHHAYA PUBLICATION-DIFFRACTION AND POLARISATION OF LIGHT-EXERCISE (VERY SHORT ANSWER TYPE QUESTIONS)
  1. Small spherical obstacle producesdiffraction [Fill in the blank].

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  2. A single slit produces diffraction [Fill in the blank.]

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  3. In Fresnel's diffraction, source of light is located at distance from ...

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  4. If the wavelength of the incident light in a single slit is increased,...

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  5. In a single slit diffraction, the intensity of secondary maxima gradua...

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  6. Resolving power of a telescopewith the increase of the diameter of its...

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  7. How does the angular width of central maximum change when the slit wid...

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  8. Instead of violet light if red light is used in the formation of diffr...

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  9. In a single slit diffraction, what is the condition for formation of f...

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  10. In a single slit diffraction, what is the condition for formation of f...

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  11. In a single slit diffraction, what is the expression of linear width o...

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  12. What is called the power of an optical instrument to produce distinctl...

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  13. What does polarisation of light prove about the nature of light?

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  14. Why does ultrasonic wave not exhibit polarisation?

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  15. When light is polarised, how does its intensity change?

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  16. Sunray, sodium light, head light of an automobile- which of these ligh...

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  17. What is the angle of between the plane of polarisation and the directi...

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  18. Tourmaline is a hexagonal crystal. The longest diagonal of the crystal...

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  19. If a beam of light its vibrations restricted to one plane instead of d...

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  20. The plane containing the direction of propagation of light and perpen...

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