What is the purpose of adaptive optics?
A) to improve the angular resolution of telescopes in space
B) to reduce the distorting effects of atmospheric turbulence for telescopes on the ground
C) to increase the collecting area of telescopes on the ground
D) to increase the magnification of telescopes on the ground
E) to allow several small telescopes to work together like a single larger telescope
B) to reduce the distorting effects of atmospheric turbulence for telescopes on the ground
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Fill in the blank(s) with correct word
Hubble found a direct relation between a galaxy's velocity and distance
Indicate whether the statement is true or false
Egyptian dams have brought unmitigated blessings to Egypt
What will be an ideal response?
Matter falling onto a compact object, such as a neutron star or black hole,forms a(n):
a. accretion disk b. binary star c. gamma-ray burst d. pulsar e. magnetar