MCQ
Red light differs from blue light as they have :
- ✓Different frequencies and different wavelengths
- BDifferent frequencies and same wavelengths
- CSame frequencies and same wavelengths
- DSame frequencies and different wavelengths
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$e=100$ $sin$ $20t$
$i=20sin$ $\left( {30t - \frac{\pi }{4}} \right)$
In one cycle of $A.C.$, the average power consumed by the circuit and the wattless current are, respectively

