Related Questions

  1. A body of mass 2 kg is kept by pressing to a vertical wall by a force of 100 N
  2. The angular speed of earth, so that the object on equator may appear weightless
  3. Light of frequency 8×10¹⁵ Hz is incident on a substance of photoelectric work
  4. The wavelength of the first line of Lymasn series for hydrogen atom is equal
  5. The distance of the moon form the earth is 3.8×10⁵ km. Supposing that the eye