Question

Who invented Kaleidoscope?
(A) Sir David Brewster
(B) Sir Isaac Newton
(C) Albert Einstein
(D) Dr. Homi Bhabha

Answer 1

Hint: A Kaleidoscope is the optical instrument which has two or more reflecting surfaces tilted to each other in an angle, so that the one or more objects in one end is seen as a regular symmetrical pattern when it is viewed from the other end because of repeated reflection.

Complete step by step solution:
Kaleidoscope is the optical instrument which uses lights and mirrors to reflect the objects and creates beautiful repeated reflections. There are many kinds of kaleidoscope that have different patterns, but all types of kaleidoscope use the same basic law of physics and light reflection.

The name kaleidoscope is derived from the Greek word “kalos” means “beautiful” and “eidos” means “form”. And the kaleidoscope was invented by the scientist Sir David Brewster in the year of $1816$ and he get the patented rights in the year of $1817$. After he invented this instrument, he usually sold this instrument as a toy.

Kaleidoscope looks small in size and it can be held in hands. One end of the Kaleidoscope has a hole so that we can look into the kaleidoscope, the mirrors are arranged in a circular pattern inside the kaleidoscope and variety of the objects like beads, pebbles and small pieces of glass are inside the kaleidoscope and they are let to move free.

Hence, the option (A) is correct.

Note: In a kaleidoscope, one end has a hole and, in another end, light is passed inside the kaleidoscope. When we look inside the kaleidoscope the light is reflected from the mirrors and glass particles inside the kaleidoscope. So that it creates a beautiful pattern of reflection.