What Is The Advantage Of Using A Parabolic Concave Mirror As Objective Of A Telescope?

What Is The Advantage Of Using A Parabolic Concave Mirror As Objective Of A Telescope? Because the light rays are parallel to each other, the reflector telescope’s mirror has a parabolic shape. The parabolic-shaped mirror focusses the parallel lights rays to a single point. What type of mirror is used in reflecting telescope? The Reflecting

Which Mirror Gives The Powerful Parallel Beam Of Light Write Its Two Uses?

Which Mirror Gives The Powerful Parallel Beam Of Light Write Its Two Uses? Concave mirrors are commonly used in torches, searchlights and headlights of vehicles to get powerful parallel beams of light. They are used as shaving mirrors to see a larger image of the face. Which mirror gives the powerful parallel beam of light?