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The average weight of the first 4 rings = 39 gm Sum of weight of the first 4 rings = 39 x 4 = 156 gms The average weight of the last 6 rings = 40 gm Sum of weight of the last 6 rings = 40 x 6 = 240 gms Total weight of the 10 rings = 156 + 240 = 396 gms Average weight of the 10 rings = 396/10 = 39.6 gms
A sulphide ore is converted into metal oxide by which of the following process?
Cathode rays when obstructed by metal cause emission of -
Which of the following materials has the highest thermal conductivity?
Which device is used to measure atmospheric pressure?
The sky appears blue, because
Alternating current is converted into direct current by a –
The SI unit of angular momentum is equivalent to which of the following?
Two identical circular current-carrying loops, placed coaxially, carry the same current i in the same direction . As the loops are brought closer to ea...
A wire is bent into a circular loop. If current is passed through it, which one of the following statements is valid?
