Question

Difference between reflecting and refracting type of telescope

Answer 1

A reflector telescope uses two mirrors instead of two lenses. Isaac Newton developed this telescope to combat chromatic aberration (a rainbow seen around some objects viewed with a refractor telescope). ... Secondly, the mirror might not be a perfect curve, so the image being reflected will not come to a perfect point

Answer 2

✯ Reflection ✯

• ➷ The bouncing back of light is called reflection.

• ➷ It involves only a single medium.

• ➷ After reflection, only change in direction takes place.

✯ Refraction ✯

• ➷ The phenomenon of bending of light is called refraction.

• ➷ It involves two or more than two media.

• ➷ After refraction, changes in direction and velocity take place.