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MHT CET202020 Oct 2020Morning ShiftPhysicsMechanical Properties of SolidsActual

The ratio of length of two wires of same material is 1: 2 and the ratio of their radii is 1: 2 . If they are stretched by the same force, the ratio of increase in their lengths is

Options

  1. A2 : 2
  2. B1: 1
  3. C2: 2
  4. D1: 2

Correct answer

B. 1: 1

Step-by-step solution

Y= F l r² l or l= F l r² Y l l r² , l^ 2 l ( 2 r)² or l^ l r² l l^ =1

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