What are the correct answers to these multiple choice questions?

1. What would happen if you concentrate huge amount of energy in a local point in space?

A.

Time would run slower in the vicinity of that point.

B.

Maybe something will happen, but we have not talked about it in the class.

C.

Due to mass-energy equivalence, it would curve the fabric of spacetime.

D.

Time would run faster in the vicinity of that point.

E.

A and C

2. Why is the detection of gravitational waves so difficult?

A.

Who said it is difficult?

B.

Because these waves travel with the speed of light, and detecting any wave that travels with such speed is inherently difficult.

C.

Because they have incredibly small frequency. (their size is too big)

D.

Because they have extremely small wavelength. (their size is too small)

E.

It is not that their detection is hard, more like physicists are stupid

3. The detection of which physical phenomenon did Gravitational Lensing have a major role in?

A.

Kung Fu Panda

B.

R2-D2

C.

Neutron Stars

D.

Dark Matter

E.

Darth Vader