Physics
Kirchhoff's laws are applicable to

C. circuits only
C. circuits only
C. and A.C. circuits both
None of these

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Physics
Pressure Cooker cooks faster because

It cooks the food at low pressure
The material of the cooker is a good conductor
Boiling point decreases with rise of pressure
Higher temperature is attained for cooking

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Physics
RADAR is used for:

receiving a signals in a radio receiver.
detecting and locating the position of objects such as Aeroplanes.
locating geostationary satellites.
locating submerged submarines.

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