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  1. A linear aperture whose width is 0.02 cm is placed immediately in front of a lens
  2. Ohm’s law is not applicable except to
  3. In the Young’s double slit experiment, the intensity of light at a point on the screen
  4. Pressure gradient has the same dimensions as that of
  5. A ball of mass 2 kg and another of mass 4 kg are dropped together from