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प्रश्न
Express the power of a 100 watt bulb in CGS unit.
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उत्तर
In SI unit, watt = joule/s
In CGS unit, 1 joule = 107 erg
So, 100 watt = 100 joule/s
\[= \frac{100 \times {10}^7 \text{erg}}{1 s} = {10}^9 \text{erg}/s\]
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