Sci-Five | The Hindu Science Quiz: On rain

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. Which of the following names is used to refer to thunderclouds?

Cumulus

Cumulonimbus clouds are the menacing, towering clouds that produce hail, thunder and lightning.

Nimbostratus

Cumulonimbus clouds are the menacing, towering clouds that produce hail, thunder and lightning.

Cumulonimbus

Cumulonimbus clouds are the menacing, towering clouds that produce hail, thunder and lightning.

Cirrus

Cumulonimbus clouds are the menacing, towering clouds that produce hail, thunder and lightning.

. Thunder clouds can sport enormous electric potential. The Ooty Muon sensing experiment GRAPES-3 measured what was the highest value of the potential of a thundercloud. What was the value they measured?

1.3 volts

at 1.3 gigavolt, that was a massive thundercloud that GRAPES-3 spotted. It had ten times higher potential than had been measured earlier in a cloud.

1.3 kilovolt

at 1.3 gigavolt, that was a massive thundercloud that GRAPES-3 spotted. It had ten times higher potential than had been measured earlier in a cloud.

1.3 megavolt

at 1.3 gigavolt, that was a massive thundercloud that GRAPES-3 spotted. It had ten times higher potential than had been measured earlier in a cloud.

1.3 gigavolt

at 1.3 gigavolt, that was a massive thundercloud that GRAPES-3 spotted. It had ten times higher potential than had been measured earlier in a cloud.