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Ray Optics Test - 10

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Ray Optics Test - 10
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Weekly Quiz Competition
  • Question 1
    4 / -1
    The angle of a prism is 42° and refractive index of its material is 3/2. Then, angle of minimum deviation for this prism is
  • Question 2
    4 / -1
    Object is placed at a distance 10 cm from a convex mirror of focal length 20 cm. Image distance is
  • Question 3
    4 / -1
    The image of an electric bulb fixed in a wall is to be obtained on the wall opposite to it at a distance of 3 m. The maximum possible focal length of the convex lens is
  • Question 4
    4 / -1
    When monochromatic red light is used instead of blue light in a convex lens. its focal length will
  • Question 5
    4 / -1
    Two thin lenses of focal length 20 cm and 25 cm are placed in contact. The effective power of the combination is
  • Question 6
    4 / -1
    A convex lens of focal length 30 cm produces 5 times magnified real image of an object. What is the object distance?
  • Question 7
    4 / -1
    A plano-concave lens is made of glass of refractive index 1.5 and the radius of curvature of its curved face is 100 cm. What is the power of the lens?
  • Question 8
    4 / -1
    A thin convex lens of crown glass having refractive index 1.5 has power 1 D. What will be the power of similar convex lens refractive index 1.6?
    Solution

  • Question 9
    4 / -1
    A convex lens made of glass has focal length 0.15 m in air. If the refractive index of glass is 3/2 and that of water is 4/3, the focal length of lens when immersed in water is
  • Question 10
    4 / -1
    60° prism has μ = √2 . Angle of incidence for minimum deviation is
    Solution

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