21. Which of the following is not one of the fundamental quantities in Physics?
22. Which unit is equal to unit of energy-
23. In the following which pair has not same unit?
24. 2 kWh = ?
25. In terms of SI prefixes 10-15 is called
26. What does a 'seismograph' record?
27. The SI unit of radioactivity is . . . . . . . .
28. Newton is the unit to measure . . . . . . . .
29. 1 KW = ?
30. Odometer in vehicle measures-
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