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Ray Optics Test - 118

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Ray Optics Test - 118
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Weekly Quiz Competition
  • Question 1
    4 / -1
    Match List I with List II and select the correct answer using the codes given below the lists :

  • Question 2
    4 / -1
    A concave mirror gives an image three times as large as the object placed at a distance of 20 cm from it. For the image to be real, the focal length should be
    Solution

  • Question 3
    4 / -1
    The minimum distance between the object and its real image for concave mirror is
  • Question 4
    4 / -1
    A point object is placed at a distance of 10 cm and its real image is formed at a distance of 20 cm from a concave minor. If the object is moved by 0.1 cm towards the mirror, the image will shift by about
    Solution

  • Question 5
    4 / -1
    The focal length of a convex mirror is 20 cm its radius ofcurvature will be
    Solution

  • Question 6
    4 / -1
    A concave mirror of focal length 15 cm forms an image having twice the linear dimensions of the object. The position of the object when the image is virtual will be
    Solution

  • Question 7
    4 / -1
    A point object is placed at a distance of 30 cm from a convex mirror of focal length 30cm. The image will form at
    Solution

  • Question 8
    4 / -1
    If the lower half of a concave mirror\'s reflecting surface is made opaque, which of the following statements describe the image of an object placed infront of the mirror?
    S1 : Intensity of the image will increase.
    S2 : The image will show only half of the object.
    S3 : No change in the image.
    S4 : Intensity of the image will be reduced to half.
  • Question 9
    4 / -1
    The ratio of the refractive index of red light to blue light in air is
    Solution

  • Question 10
    4 / -1
    The refractive index of a piece of transparent quartz is the greatest for
    Solution

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