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  1. The momentum of a photon of energy 1 MeV in kg m/s will be
  2. A point charge q is placed at a distance x/2 directly above the centre of a cube
  3. The angle of incidence for a ray of light at a refracting surface of a prism is 45⁰.
  4. A wire of a certain material is stretched slowly by ten percent. Its new resistance
  5. A car accelerates from rest at constant rate for first 10s and covers a distance x.