The light curve of a/an ___________ binary can reveal both masses ...

[lracut11]

The light curve of a/an ___________ binary can reveal both masses and diameters of the stars.
 
  Fill in the blank(s) with correct word

Question 2

The singularity of a black hole
 
  a. is found outside the event horizon.
  b. is located within the event horizon.
  c. can only be located if the black hole is in a binary system.
  d. doesn't exist since all black holes have a finite size.

[upturnedfurball]

Answer to Question 1

eclipsing

Answer to Question 2

b

[lracut11]

Thanks for the timely response, appreciate it

[mohan]

Excellent