9th Standard English Medium Science Subject Light Book Back 5 Mark Questions with Solution Part - II

9th Standard

    Reg.No. :
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Science

Time : 00:30:00 Hrs
Total Marks : 25
    5 x 5 = 25
  1. a) Draw ray diagrams to show how the image is formed using a concave mirror, when the position of object is i) at C ii) between C and F iii) between F and P of the mirror.
    b) Mention in the diagram the position and nature of image in each case.

  2. State and verify laws of refraction using a glass slab.

  3. The radius of curvature of a convex mirror is 40 cm. Find its focal length  

  4. A concave mirror produces three times magnified real image of an object placed at 7 cm in front of it. Where is the image located?

  5. The speed of light in water is 2.25 × 108 ms-1. If the speed of light in vacuum is 3 × 108 ms-1, calculate the refractive index of water. 

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