Question

Which of the following best

describes telescopes?
A. instruments that collect and focus
electromagnetic radiation
B. instruments that amplify sound waves
C. instruments that lessen the effects of gravity
D. instruments that measure the temperature of
an object

Answer 1

A.

Step-by-step explanation:

A telescope is a tool that astronomers use to see faraway objects. Most telescopes, and all large telescopes, work by using curved mirrors to gather and focus light from the night sky. The first telescopes focused light by using pieces of curved, clear glass, called lenses.