Related Questions

  1. Diameter of the objective of a telescope is 200 cm. What is the resolving power
  2. Two parallel beams of positron moving in the same direction will
  3. A linear aperture whose width is 0.02 cm is placed immediately in front of a lens
  4. The frequency of light ray having the wavelength 3000Å is
  5. A body starts from rest with an acceleration of 2 m/s². After 5 second,