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  1. We have an angle of 21°/2 .How big it will look through a glass that magnifies things three times?
    1. 21°× 4
      2
    2. 21°× 3
      2
    3. 21°× 2
      2
    4. 21°× 5
      2
    5. None of these
Correct Option: D

Measure of the angle will not change.Hence required answer will be option D .

i.e. 21°× 5
2


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