Supernova explosions - uses & Supernova explosion radiation - Science & Technology

Q.  Consider the following statements

1. Supernova explosions are useful to determine rate of acceleration of universe.
2. Supernova explosion radiate as much energy as the Sun or any ordinary star is expected to emit over its entire life span.

Which of the above statements is/are true?
- Published on 30 Mar 15

a. Only 1
b. Only 2
c. Both
d. None

ANSWER: Both

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