Question

which is the correct combination of the equipment required to make a Newtonian's telescope​

Answer 1

Answer:

The Newtonian telescope, also called the Newtonian reflector or just the Newtonian, is a type of reflecting telescope invented by the English scientist Sir Isaac Newton (1642–1727), using a concave primary mirror and a flat diagonal secondary mirror. Newton's first reflecting telescope was completed in 1668 and is the earliest known functional reflecting telescope.[1] The Newtonian telescope's simple design has made it very popular with amateur telescope makers.