Which of the following is true about low-mass stars compared to ...

[pragya sharda]

Which of the following is true about low-mass stars compared to high-mass stars?
 
  A) Low-mass stars are cooler and less luminous than high-mass stars.
  B) Low-mass stars are hotter and more luminous than high-mass stars.
  C) Low-mass stars are cooler but more luminous than high-mass stars.
  D) Low-mass stars are hotter but less luminous than high-mass stars.
  E) Low-mass stars have the same temperature and luminosity as high-mass stars.

Question 2

A black hole may be visible because electromagnetic radiation is emitted from a(n) ________ surrounding it, heated up enough to emit X-rays.
 
  Fill in the blank(s) with correct word

[ky860224]

Answer to Question 1

A

Answer to Question 2

accretion disk

[pragya sharda]

Excellent

[Viet Thy]

Gracias!