50 Important MCQs on Measurment and Units
Ques 1 The unit of power is
(a) Hertz
(b) Volts
(c) Watt
(d) Neutron
Ans- (c) Watt
Ques 2 The unit of electric power is
(a) Ampere
(b) Volt
(c) Coulomb
(d) Watt
Ans- (d) Watt
Ques 3 The unit of the force is
(a) Faraday
(b) Fermi
(c) Newton
(d) Rutherford
Ans- (c) Newton
Ques 4 The unit of work is
(a) Joule
(b) Neutron
(c) Watt
(d) Dyne
Ans- (a) Joule
Ques 5 Frequency is measured in
(a) hertz
(b) metre/second
(c) radian
(d) watt
Ans- (a) hertz
Ques 6 What is measured in hertz?
(a) Frequency
(b) Energy
(c) Heat
(d) Quality
Ans- (a) Frequency
Ques 7 The SI unit of electrical resistivity of conductor is-
(a) Faraday
(b) Volts
(c) Ampere
(d) Ohm-meter
Ans – (d) Ohm-meter
Ques 8 Light-year is the unit of
(a) Distance
(b) Time
(c) Speed of light
(d) Intensity of light
Ans- (a) Distance
Ques 9 A light-year is the
(a) Year which had maximum sunlight
(b) Year in which workload was very light
(c) Distance travelled by light in one year
(d) Mean distance between Sun and Earth
Ans- (c) Distance travelled by light in one year
Ques 10 Light-year is the unit of
(a) Energy
(b) Intensity
(c) Age
(d) Distance
Ans- (d) Distance
Ques 11 Light-year is the unit of
(a) Intensity of light
(b) Time
(c) Distance
(d) Speed of light
Ans- (c) Distance
Ques 12 Light Year is
(a) The year in which February has 29 days
(b) The distance travelled by light in one year
(c) The time which sun rays take to reach the earth
(d) The time in which a spacecraft reaches moon from the earth
Ans- (b) The distance travelled by light in one year
Ques 13 A parsec, a unit of distance used to measure the distance related to the stars in the sky, is equal to-
(a) 4.25 light-years
(b) 3.25 light-years
(c) 4.50 light-years
(d) 3.05 light-years
Ans- (b) 3.25 light-years
Ques 14 PARSEC is the unit of
(a) Distance
(b) Time
(c) Light intensity
(d) Magnetic Force
Ans- (a) Distance
Ques 15 Which unit of measurement is multiplied by 0.39 to convert to inches?
(a) Millimetre
(b) Centimetre
(c) Metre
(d) Decimetre
Ans- (b) Centimetre