Chapter 33, Problem 17RQ

To determine

The relationship between a supergiant star and a blackhole.

Answer to Problem 17RQ

Blackhole is the result of contraction of supergiant star.

Explanation of Solution

During the contraction of a supergiant star, most of its mass compresses into itself due to the very high gravitational pull of the star, this gravitational field of the star increases as the density of the star increases enormously.

Black holes have such a high gravitational force that it’s nearly impossible for anything to escape its gravitational field, even light is unable to escape the blackhole due to which it is not visible.

Conclusion:

Therefore, blackhole is the result of contraction of supergiant star.