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  1. In refraction, light waves are bent on passing from one medium to the second medium
  2. A projectile is fired from the surface of the earth with a velocity of 5 m s⁻¹ and angle
  3. The ratio of amplitude of magnetic field to the amplitude of electric field for
  4. The voltage of clouds is 4×10⁶ volt with respect to ground. In a lightening
  5. In Raman effect, Stoke’s lines are spectral lines having