Telescopes which use lenses are called………
a) Refracting telescope
b) Reflecting telescope
c) Lens telescope
d) Radio telescope
Telescopes which use mirror are called………
a) Refracting telescope
b) Reflecting telescope
c) Lens telescope
d) Radio telescope
Which of the following telescope uses mirrors with a lens design?
a) refractor telescope
b) reflector telescope
c) catadioptric telescope
d) all of these telescope
The world first reflecting telescope was made by
a) Galileo Galilei
b) William Harvey
c) Edward Jenner
d) Isaac Newton
Which instruments helps scientists to find out what stars are made of?
a) Lighter matter
b) Sound wave
c) Heat waves
d) Radio waves
Spectroscope is an instrument used to examine the wavelength of: NTS PST 15/12/2019 (8:30)
a) water
b) air
c) light
d) sound
