Question

In prism the binoculars, the totally internally reflecting prisms, turns the incident beam of light through:

विकल्प

• 180°

• 120°

• 90°

• none of these

Answer 1

180°

Explanation:

In prism binoculars, the beam undergoes two total internal reflections. Each reflection turns it through 90°, so the total turn is 180°.