Practice Units and MeasurementRRB PYQ questions from Railway examinations, including RRB NTPC PYQ, RRB Group D PYQ, RRB JE PYQ, RRB ALP PYQ and RRB Technician PYQ. This topic-wise Physics question set covers important concepts related to Units and Measurement, helping you revise essential Physics concepts and understand the types of questions asked in RRB examinations.
Each question includes the correct answer and an explanation to help you understand the concept, strengthen your Physics fundamentals, and revise important Heat topics for RRB Railway examinations.
Start practicing Units and MeasurementRRB PYQs and strengthen your Physics preparation
61
Ohm is unit of which physical quantity?
RRB Group D
2018
✓ Answer:DVoltage
The ohm is the SI unit of electrical resistance.
62
The unit of approximate distance from the Earth to the Sun is
RRB NTPC Stage-I
2016
✓ Answer:BAstronomical Unit
The mean Earth-Sun distance is approximately one astronomical unit (AU).
63
What is the SI unit of retardation?
RRB Group D
2018
✓ Answer:Am s^-2
Retardation is negative acceleration; its SI unit is m/s².
64
SI unit of force is
RRB NTPC; RRB NTPC Stage-I
2020; 2016
✓ Answer:BNewton
Newton is the SI derived unit of force, equal to kg·m/s².
65
1 Pascal =
RRB Group D
2018
✓ Answer:A1 N/m^2
By definition, 1 pascal equals one newton per square metre.
66
Which of the following is not correctly matched?
RRB NTPC Stage-I
2016
✓ Answer:BMagnetic flux - Tesla
Magnetic flux is measured in weber; tesla is the unit of magnetic flux density.
67
Match the following with the correct response: (1) Watt (2) 1 Kilowatt (3) 1 Kilowatt hour (4) 1 Horsepower
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