A wooden spoon is dipped in a cup of ice-cream, then its other end
(A) does not become cold
(B) becomes cold by the process of conduction
(C) becomes cold by the process of convection
(D) becomes cold by the process of radiation
One fathom is equal to
(A) 6 meters
(B) 6 feet
(C) 60 feet
(D) 100 cm
kilohertz is a unit which measures
(A) power used by a current of one ampere
(B) electromagnetic radio wave frequencies
(C) voltage
(D) electric resistance
'Bar' is the unit of
(A) temperature
(B) heat
(C) current
(D) atmospheric pressure
One Joule is equal to
(A)
(B)
(C)
(D)
The purpose of Choke in tube light is
(A) To decrease the current
(B) To increase the current
(C) To decrease the voltage momentarily
(D) To increase the voltage momentarily
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