Basic General Knowledge
Primary rainbow is formed when light suffers

one internal refractions before emerging out of the drop
two internal refractions before emerging out of the drop
either one or two internal refractions before emerging out of the drop
no internal refraction

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Basic General Knowledge
Yuri Gagarin was

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

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