(A) oxygen
(B) hydrogen
(C) carbon
(D) sulphur
Who is called the father of modern chemistry?
(A) Dalton
(B) Lavoisier
(C) Mendeleev
(D) None of these
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
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
Which of the following is false?
Sound waves are _________ waves.
(A) Pressure
(B) Longitudinal
(C) Electromagnetic
(D) Mechanical
In the following is not an example of refraction of light.
(A) Twinkling effect of stars
(B) Mirages
(C) Bending of light while passing through a medium
(D) lateral inversion
What happens to the speed of a cycle when it travels on a rough surface?
(A) Increases
(B) Decreases
(C) Remains the same
(D) None of these
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