Question

2If the Betelgeuse explodes today, who will be able to observe it? People living in the year:

A. 2020

B. 2100

C. 2662

D. 6523​

Answer 1

The correct answer is (C).

• Betelgeuse is a star that has become a red supergiant. It is one of the nearest stars that are visible to the naked eye.
• The star is nearing the end of its life and is expected to die in another million years. However, people on earth won't be able to see the explosion as soon as it dies.
• People will only be able to see the phenomenon once the light from the explosion reaches the earth, just like light from the Sun reaches the earth in about 8 minutes.
• Betelgeuse is approximately 640 light years away from the earth. This means that light takes 640 years to travel from the star to the earth.
• Hence, if Betelgeuse explodes today, people will be able to see it after 640 years, i.e. in 2662.
• So, the correct option is (C).

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Answer 2

Answer:

From the given options, the correct option is C) 2662.

Explanation:

• Betelgeuse is an extinct star that has evolved into a red supergiant. It is one of the closest stars visible with the naked eye.
• The star is nearing the end of its life and will die in a million years. People on Earth, however, will not be able to see the explosion as soon as it dies.
• People will only be able to see the phenomenon once the light from the explosion reaches the earth, which takes approximately 8 minutes.
• Betelgeuse is nearly 640 light years away from Earth. This means that light travels 640 years from the star to Earth.
• As a result, if Betelgeuse explodes today, people will be able to see it in 640 years, or in 2662.

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