Who introduced gold coins for the first time in India?
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India won its first Olympic hockey gold in
Which of the following rivers of peninsular India is distinct from the remaining three?
Mithir Sen is associated with
A universal recipient belongs to the blood group
Select the antonym of
flog
Chief Election Commissioner of India can be removed from the office by
A gas absorbs a photon of 355 nm and emits at two wavelengths. If one of the emissions is at 680 nm, the other is at :
1λ=1λ1+1λ2
1355=1680+1λ2
1λ2=680-355680×355
⇒λ2=743nm.