Basic General Knowledge
What is the function of a dynamo?

To convert light energy into heat energy
To convert heat energy into light energy
To convert electrical energy into mechanical energy
To convert mechanical energy into electrical energy

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Basic General Knowledge
Yuri Gagarin was

a Russian cosmonaut & became the first man to travel in space.
the first person to fly at great height of about 340 km from the earth
both (a) and (b)
None of these

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