Night Blindness is caused by deficiency of which of the following Vitamin?
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Dzongkha is the official Language of _____ .
A covex mirror of focal length f (in air) is immersed in a liquid (u=4/3). The focal length of the mirror in the liquid will be :
What is the SI unit of intensity of sound?
Who discovered theory of relativity?
The President can advance money to meet unforeseen expenses from the
Andy Murray is associated with which Sport?
UNICEF was created in 1946 to help