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Ray Optics Test...

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  • Question 1
    4 / -1

    The apparent depth of water in cylindrical water tank of diameter 2 R cm is reducing at the rate of x cm/minute, when water is being drained out at a constant rate. The amount of water drained in cc per minute is (n1 = refractive index of air, n2 = refractive index of water)

  • Question 2
    4 / -1

    A candle of diameter d is floating on a liquid in a cylindrical container of diameter D (>> d) as shown in Fig. If it is burning at the rate of 2 cm/hour, then the tip of the candle will

  • Question 3
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    The magnification of the image when an object is placed at a distance x

  • Question 4
    4 / -1

    The velocity of light is maximum in a medium of

  • Question 5
    4 / -1

    A light of wavelength 320 nm enters in a medium of refractive index 1.6 from the air of refractive index 1.0 The new wavelength of light in the medium will be ― nm.

  • Question 6
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    \"Bhautik\" runs towards a plane mirror with a speed of 20 ms–1, what is the speed of his image ?

  • Question 7
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    A ray of light is incident at an angle 30o on a mirror, The angle between normal and reflected ray is___________.

  • Question 8
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    The no. of images formed between two parallel plane mirror are ______________.

  • Question 9
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    To get five images of a single object one should have two plane mirrors at an angle of___________.

  • Question 10
    4 / -1

    If a glass rod is immersed in a liquid of the same refractive index, then it will______________.

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