Question

Assertion: The brightest star visible from the earth is Proxima centaury.
Reason: It is about 8.7 light-years from the earth.

• A. Both assertion and reason are correct statements and the reason is the correct explanation of the assertion.
• B. Both assertion and reason are correct statements but the reason is not the correct explanation of the assertion.
• C. The assertion is correct, but the reason is the incorrect statement.
• D. The assertion is incorrect but the reason is the correct statement.

Answer 1

The correct option is D

The assertion is incorrect but the reason is the correct statement.

The explanation of the assertion statement:

1. Sirius: The brightest star which is visible from the earth is Sirius.
2. Proxima Centauri: It is the nearest star from the earth. It is 4.3 light-years away from earth.

The explanation for the reason statement:

1. The star which is 8.7 light-years away from the earth is Sirius (brightest star).

Concluding statement:

1. The assertion is incorrect but the reason is the correct statement.
2. Hence the right answer is option D.