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1. Identify the unit of measuring intensity, , of sound [SSC CGL 2018], (a) Knots (b) Ampere, (c) Candela (d) Decibel, , 2. What is the unit of the physical quantity,, Momentum? [SSC (10+ 2) 2017], (a) Newton s (b) Joule second, (c) Erg second (d) Pascal second, 3. Frequency is measured in, [BPSC (Pre) 2018], (b) rnetre/second, (d) watt, 4. What is measured in hertz?, [BPSC (Pre) 2019], (a) Frequency (b) Energy, (c) Heat (d) Quality, 5. Which one of the following physical, quantities has the same unit as that of, pressure? [NDA 2017], (a) Angular momentum, (b) Stress, (c) Strain, (d) Work, 6. Angstrom is a unit of [BPCS (Pre) 2018], (a) wavelength (b) energy, (c) frequency (d) velocity, 7. What is the unit of pressure?, [BPCS (Pre) 2018], , cond, , , , (a) hertz, (c) radian, , (a) Newton/sq rnetre, (b) Newton-metre, {c) Newton, , (d) Newton/rmetre, , 8. The unit of pressure is [BPSC (Pre) 2019], (a) ke/ern? (b) ke/em, (c) kg/rarn (d) None of these, , 8. Which one of the following quantities, does not have unit? [BPSC (Pre) 2019], (a) Stress (b) Force, (c) Strain (d) Pressure, , 10. Which one of the following is not the unit, of heat?, , [UPRO/ARO (Pre) 2017], (a) Centigrade (b) Calorie, (c) Erg (d) Joule, 11. Which of the following is the SI unit of, temperature? [SSC (10 +2) 2019], (a) Kelvin (b) Reaumur scale, (c) Candela, , (d) Ampere, , 12., , 13., , 14., , 15., , 16., , 17., , 18., , ig., , 20., , 21., , 22., , Which one of the following is the unit of, force? [SSC (1042) 2019], (a) Pascal (b) Watt, , {c) Joule (a) Newton, , Light year is a unit for measurement of, , (a) very large distances. INDA 2019], (b) time interval in years., (c) amount of light received on earth ina, , year., (d) mass of atoms. ., Light year is the unit of .........., [RRB 2019], (a) length (b) mass, (c) time (d) area, The unit of momentum is —_[RRB 2018], (a) kems?” (b) kgrns*, (c) kgms (d) kerns?, , Which of the following quantities does, not have any unit? [SSC 2017], (a) Speed (b) Density, , (c) Relative density (d) Acceleration, , Maxwell is the unit of which one of the, following? [SSC 2017], (a) Magnetic flux, , (b) Permeability, , (c) Magnetic susceptibility, (d) Intensity of magnetisation, , The SI unit of radioactivity is ......... ‘, [SSC (10 +2)2019], , (a) Ampere (b) Becquerel, , (c) Decibel (d) Cobolt, , The SI unit of weight is [RRB 2018], , (a) kilogram (b) newton, , (c) gram (d) dyne, , Hertz is the SI unit of [SSC 2019], , (a) frequency (b) force, , (c) pressure (d) energy, , The SI unit for electrical resistivity 18, , [RRB 2019], , (a)ampere/metre —_(b) volt/metre, , (c) tesla (d) ohm metre ws, , Which of the following quantities have?, , SI unit named after Blaise Pascal? 019), , (a) Energy [ssc 2, , (b) Pressure, , (c) Work, , (d) Power

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23. Newton-metre (N-m) is the SI unit of Codes, , which of the following physical quantity? ABCD ABCD, [SSC 2017] (a)1 234 (b)2 341, (a) Acceleration (b) Torque (c)4 312 (d)3 412, (c) Power (d) Force 30. Ifa physical quantity has the units- ampere, 24. Match the following. [SSC 2017] meters per second squared, then what are, ee ees wt 2 ae, Quanity SI Unit it's aicpestenie [ssc 7" 0+2) 2018], A. Frequency 1. Ohm (a) ELT" (b) [ALT }, B. Force 2. Hertz () MS" (d) [AMS], , C. Resistance 3. Newton 31. Which instrument is used to measure, az.) humidity? [BPCS 2018], ABC ABC (a) Hydrometer (b) Hygrometer, (a) 231 (b)1 32 (c) Pyrometer (d) Lactometer, , () 321 (213 32. Electroencephalogram (ECG) is used in, 25. Light year is [WBCS 2019] monitoring ___ [BPCS 2018], (a) light emitted by Sun in one year. (a) heart (b) liver, (b) time taken by light to travel from Sun (c) pancreas (@) brain, to Earth. 33. Which one of the following thermometers, (c) the distance travelled by light in free is known as pyrometer? [UPPCS 2016], space in one year. (a) Thermo - electric thermometers, (d) time taken by Earth to go once around (b) Radiation thermometers, the Sun. (c) Gas thermometers, , 26. A nautical mile is equal to ......... . (a) Liquid thermometers, , [SSC CGL 2019} | 24. Which one of the following devices is used, , (a) 2000 metres (6) 1852 metres to measure extremely high temperature?, (c) 1672 metres (d) 2450 metres (a) Pyrometer (b) plan os, 27. Which one of the following is the value of (c) Phonometer (a) Pycnometer, aa rere ween 2018] 35. Pyrheliometer is used for measuring, © 6 (a) sun spots [UPPCS 2015], (c)10™ cm (@) 10 crn (b) solar radiation, 28. 1 dyne (a unit of force in CGS system) (c) air temperature, equals to INDAINA 2019] (d) temperature of plants, (a) 10°g-cm/s* (b) 10™g-cm/s 36. The density of milk is measured by, (c)10°kg-cm/s? (4) 10> kg- m/s? (a) loctometer [MPPCS 2015], 29. Match the List I with List II and select the (b) hydrometer, correct answer using the codes given ° Pe, below: (d) hygrometer, cs 37. A student measures certain lengths using, List | List Il a meter scale having least count equal to, A. Acceleration _1. Joule 1mm. [NDA/NA 2019], B. Force 2. _Newton-second Which one of the following measurement, C.__Work done 3._Newton is more precise?, D. Impulse 4. Metre per second? (a) 0.50 mm (b) 29.07 mm, (c) 0.925 mm (d) 910 mm, , , , [UPPCS 2005], , , , 1 @) 2. (a) 3. (a) 4. (a) 5. (b) 6. (a) 7. (a) 8. (d) 9% (a) 10. (a), ML (a) 12 (a) 13. (a) 14, (a) 15. (b) 16. (c) 17. (a) 18 (b) 19 (a) 20. (a), 21 (a) 22. (b) 23. (b) 24. (a) 25.) 26. (a) 27. (a) 28. (d)—-29. (b) 30, fa), 31. (b) 32. (d) 33. (b) 34, (a) 35. (b) 36. (a) 97, (a)