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  2. A potentiometer wire of length 100cm has a resistance of 10Ω. It is connected in series
  3. The maximum and minimum intensities of two sources is 4:1. The ratio of amplitude is
  4. When a biconvex lens of glass having refractive index 1.47 is dipped in a liquid
  5. If angular momentum of a body is increased by 200% its kinetic energy will increase