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Wave Optics Tes...

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  • Question 1
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    Diffraction also refers to

     

  • Question 2
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    Shape of the wave front of light emerging out of a convex lens when a point source is placed at its focus.

     

  • Question 3
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    A beam of light consisting of two wavelengths, 650 nm and 520 nm, is used to obtain interference fringes in a Young ’s double-slit experiment. Find the distance of the third bright fringe on the screen from the central maximum for wavelength 650 nm.

     

  • Question 4
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    A beam of light has a wavelength of 650 nm in vacuum. What is the wavelength of these waves in the liquid whose index of refraction at this wavelength is 1.47?

     

  • Question 5
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    wave front is

     

  • Question 6
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    A beam of light consisting of two wavelengths, 650 nm and 520 nm, is used to obtain interference fringes in a Young ’s double-slit experiment. What is the least distance from the central maximum where the bright fringes due to both the wavelengths coincide?

     

  • Question 7
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    A parallel beam of light in air makes an angle of 47.5∘  with the surface of a glass plate having a refractive index of 1.66. What is the angle between the reflected part of the beam and the surface of the glass?

     

  • Question 8
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    Shape of the wave front of portion of the wave front of light from a distant star intercepted by the Earth

     

  • Question 9
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    Which of the following phenomenon cannot be explained by diffraction?

     

  • Question 10
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    According to Huygens principle

     

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