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How many Ergs are there in 1 Joule?

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in Physics – Class 11 by (74.2k points)
How many Ergs are there in 1 Joule?

(a) 10

(b) 10^4

(c) 10^7

(d) 10^9

I have been asked this question in an online quiz.

This intriguing question comes from Introduction to Work, Energy and Power in section Work, Energy and Power of Physics – Class 11

1 Answer

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Best answer
Correct choice is (c) 10^7

For explanation I would say: Erg is the unit of energy in CGS system. One Joule = 10^7 ergs. This can be found out by putting in the CGS units in the expression for energy.

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