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Related Questions

  1. A thin glass(refractive index 1.5) lens has optical power of -5D in air.
  2. The young’s modulus of steel is twice that of brass. Two wires of same length
  3. Core of electromagnets are made of ferromagnetic material which has
  4. The electric vector vibration of an electromagnetic wave is given by
  5. If the velocity of an electron increases, then its de Broglie wavelength will