Related Questions

  1. A thin glass(refractive index 1.5) lens has optical power of -5D in air.
  2. A projectile is fired from the surface of the earth with a velocity of 5 m s⁻¹ and angle
  3. The angle of incidence for a ray of light at a refracting surface of a prism is 45⁰.
  4. A long straight wire carries a certain current and produces a magnetic field
  5. The electric resistance of a certain wire of iron is R. If its length and radius