Author Question: What explanation does general relativity provide for gravity? A) Gravity is the result of curved ... (Read 47 times)

tichca · **on:** Jul 27, 2018

What explanation does general relativity provide for gravity?

A) Gravity is the result of curved spacetime.
B) Gravity is directly proportional to the mass of the attracting body.
C) Gravity is inversely proportion to the radius of the body.
D) Gravity is the opposite of the electromagnetic force.
E) Gravity can affect only massive particles, not massless photons.

Question 2

What do we mean by the diffraction limit of a telescope?

A) It is the maximum size to which any telescope can be built.
B) It describes the farthest distance to which the telescope can see.
C) It describes the maximum exposure time for images captured with the telescope.
D) It is the best angular resolution the telescope could achieve with perfect optical quality and in the absence of atmospheric distortion.