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  1. Dimensional formula for electrical resistance R is given by
  2. The escape velocity from the earth is Ve. The escape velocity from a planet
  3. If h is planck’s constant and λ is wavelength, h/λ has dimensions of
  4. In a compound microscope, the focal length of the objective is 2.5 cm and of eye lens
  5. An engine is moving towards a wall with a velocity 50 ms⁻¹ emits a note of 1.2 kHz.