24.2

Question 1

Explain chromatic aberrations

Answer 1

When refracting light, short wavelength FS are bent more than long wavelengths
-can’t focus on red and blue at some times

Question 2

Define refracting

Answer 2

Bends light

Question 3

What is the focus in a telescope?

Answer 3

Objective lens bends light to single point
-to converge the gathered light on a given point
-can use a camera or an eye piece

Question 4

How does a radio telescope work?

Answer 4

Focuses the incoming radio waves on an antenna, which absorbs and transmits these waves

Question 5

What is interferometer? How does it benefit radio telescopes?

Answer 5

Several radio telescopes can be networked together
-helps gather better information the more radio telescopes

Question 6

Hubble

Answer 6

-1990
-able to distinguish between Pluto and Charon
-2.4m reflector
-10B more light power than the human eye
-black holes/universe expansion
-outside of atmosphere

Question 7

Chandra

Answer 7

-1999
-studies black holes and x-rays
-observatory

Question 8

Compton

Answer 8

-studies gamma rays and visible light
-observatory

Question 9

James Webb

Answer 9

-space telescope
-infrared telescope
-explores exosolar planets