Home

General Knowledge (GK)

General Science

All MCQs

All MCQs

671.

What is the name of the region surrounding a black hole where objects can still escape if they have sufficient speed?

A

B

C

D

672.

Which phenomenon, related to pulsars, results in the emission of regular pulses of electromagnetic radiation?

A

B

C

D

673.

What is the term for the bending of starlight as it passes near a massive celestial object like a galaxy or galaxy cluster?

A

B

C

D

674.

Which phenomenon occurs when two neutron stars merge, releasing a burst of gravitational waves and often creating heavy elements?

A

B

C

D

675.

What is the term for a theoretical entity that could be responsible for the gravitational effects observed in galaxies and clusters, although it remains undetected?

A

B

C

D

676.

What is the term for the process by which a main-sequence star like the Sun eventually becomes a red giant and expands?

A

B

C

D

677.

Which scientist is credited with proposing the concept of black holes and the theory of Hawking radiation?

A

B

C

D

678.

What is the name of the boundary around a black hole beyond which nothing, not even light, can escape?

A

B

C

D

679.

Which type of galaxy is characterized by a spherical or ellipsoidal shape and contains mainly older stars?

A

B

C

D

680.

What is the term for the study of the distribution and properties of galaxies in the universe?

A

B

C

D