Q. What is the main constituent of coal gas?
A. Oxygen
B. Water
C. Nitrogen
D. Methane
Q. Recoil of a gun is an example of
A. Conservation of mass
B. conservation of energy
C. conservation into KE
D. conservation of linear momentum
Q. What is the heaviest of the naturally occurring Noble gases?
A. Radon
B. Xenon
C. Helium
D. Argon
Q. Aviation fuel for Jet aero planes consists of purified
A. Petrol
B. Kerosene
C. Gasoline
D. Diesel
Q. A piece of stone and or iron traveling through space that moves through the earth’s atmosphere is
A. Planet
B. Sun
C. Moon
D. Meteor
Q. Which one of the following common devices works on the basis of the principle of mutual induction?
A. Tube light
B. Transformer
C. Photodiode
D. Led
Q. Dc current can be controlled by which one of the following components?
A. Impedance
B. Resistance
C. Capacitance
D. Inductance
Q. Mesons are found in
A. Alpha -rays
B. Laser beam
C. X – rays
D. Cosmic rays
Q. A moderator is used in nuclear reactors in order to
A. increase the motoneurons
B. decrease the motoneurons
C. slow down the speed of neutrons
D. Anthony S. D’Mello
Q. The wavelength of X-rays is of the order of
A. 1 cm
B. 1 m
C. 10 micron
D. 1 Angstrom
Get the Examsbook Prep App Today