____ is used in periscope.
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If the radius (r) of a circle is increased by 'x' units, what is the number of units by which the circumstance of the circle is increased?
___ is used in yellow lamp street lights.
Salarjung Museum is located in ___.
___ is known as a disease mostly caused by occupational health hazards.
Number of satellites launched by the ISRO using its PSLV- C51 rocket -
Which one is not the key objective of the Jan Aushadhi Campaign?
The instrument used to examine a person's digestive tract is called ___.