Q. 1. Boojho found a bag containing the following materials. (i) Mirror (ii) Paper stained with oil (iii) Magnet (iv) Glass spectacles Help Boojho in finding out the material(s) which is/are opaque.

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Solution:

  • (i) only
  • (iv) only
  • (i) and (iii)
  • (ii) and (iv) Solution:

(c): Mirror and Magnet

Mirror is opaque since it is painted on one side. Magnet is opaque since it is made up of iron metal.

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