JEE Main - System of units and SI units Question Bank with Options

1. Which SI unit is derived from the base units of meter, kilogram, and second?

A) Watt

B) Joule

C) Newton

D) Pascal

2. The SI unit for amount of substance, the mole, is defined as:

A) The number of atoms in 12 grams of Carbon-12

B) The number of molecules in 18 grams of water

C) The number of entities in 0.012 kilograms of Carbon-12

D) The number of protons in one gram of hydrogen

3. Which of the following systems of units is most widely adopted in scientific and technical fields globally?

A) CGS system

B) FPS system

C) MKS system

D) SI system

4. The SI unit of luminous intensity is defined based on:

A) The luminosity of a specific star

B) The radiation emitted by a black body at a specific temperature

C) The energy radiated by a standard candle

D) The power of a specific light bulb

5. What is the SI derived unit for impulse?

A) Newton-meter

B) Newton-second

C) Joule-second

D) Dyne-centimeter

6. The SI derived unit for momentum is:

A) Newton-second

B) Dyne-second

C) Kilogram-meter

D) Pound-foot

7. Which SI unit is used to measure magnetic field strength?

A) Weber

B) Gauss

C) Tesla

D) Oersted

8. The SI derived unit for acceleration is:

A) Meters per hour squared

B) Meters per second squared

C) Kilometers per second squared

D) Feet per second squared

9. What is the SI derived unit for velocity?

A) Kilometers per hour

B) Meters per second

C) Miles per hour

D) Feet per minute

10. The SI derived unit for volume is:

A) Liter

B) Gallon

C) Cubic meter

D) Cubic centimeter

11. Which of the following is an SI derived unit for area?

A) Hectare

B) Acre

C) Square meter

D) Are

12. The SI base unit for thermodynamic temperature is:

A) Degree Celsius

B) Kelvin

C) Fahrenheit

D) Rankine

13. What is the SI base unit for electric current?

A) Milliampere

B) Ampere

C) Kiloampere

D) Volt

14. The SI base unit for time is universally recognized as:

A) Hour

B) Minute

C) Day

D) Second

15. Which SI unit represents the SI base unit for length?

A) Centimeter

B) Kilometer

C) Meter

D) Inch

16. The SI unit of surface energy is:

A) Joule

B) Joule/meter

C) Joule/meter^2

D) Watt

17. What is the SI unit of dynamic viscosity?

A) m^2/s

B) Pa-s

C) m/s

D) kg/m-s

18. The SI unit of kinematic viscosity is:

A) m^2/s

B) m/s

C) Pa-s

D) m^2/kg

19. Which SI unit is used for equivalent dose of radiation?

A) Gray

B) Rad

C) Sievert

D) Roentgen

20. The SI unit of absorbed dose of radiation is:

A) Sievert

B) Gray

C) Rad

D) Roentgen

21. What is the SI unit of radioactivity?

A) Curie

B) Becquerel

C) Rutherford

D) Gray

22. The SI unit of solid angle is:

A) Radian

B) Degree

C) Steradian

D) Arcminute

23. Which SI unit measures illuminance?

A) Lumen

B) Candela

C) Lux

D) Nit

24. The SI unit of luminous flux is:

A) Lux

B) Candela

C) Lumen

D) Steradian

25. What is the SI unit of specific heat capacity?

A) Joule/kg

B) Joule/kg-K

C) Calorie/g-°C

D) Joule/K

26. The SI unit of heat capacity is:

A) Joule/Kelvin

B) Joule/Celsius

C) Calorie/Kelvin

D) Watt/Kelvin

27. Which SI unit is used to measure viscosity?

A) Poise

B) Pascal-second

C) Stokes

D) Centipoise

28. The SI unit of surface tension is:

A) N/m

B) N/m^2

C) J/m

D) J/m^2

29. What is the SI unit of angular acceleration?

A) Radians per second squared

B) Degrees per second squared

C) Revolutions per minute squared

D) Hertz per second

30. The SI unit of angular velocity is:

A) Degrees per second

B) Revolutions per minute

C) Radians per second

D) Hertz

31. Which SI unit is used for angular displacement?

A) Degree

B) Radian

C) Gradian

D) Revolution

32. The SI unit of frequency is:

A) Radian

B) Hertz

C) Cycle

D) Baud

33. What is the SI unit of inductance?

A) Farad

B) Ohm

C) Henry

D) Siemens

34. The SI unit of magnetic flux is:

A) Tesla

B) Gauss

C) Weber

D) Henry

35. Which SI unit measures capacitance?

A) Henry

B) Farad

C) Weber

D) Tesla

36. The SI unit of electric potential difference is:

A) Ampere

B) Ohm

C) Watt

D) Volt

37. What is the SI unit of electric charge?

A) Ampere

B) Volt

C) Coulomb

D) Farad

38. The SI unit of electric resistance is:

A) Siemens

B) Ohm

C) Farad

D) Henry

39. Which of the following represents the SI unit of power?

A) Joule per second

B) Watt

C) Kilowatt

D) All of the above

40. The SI unit of energy is:

A) Calorie

B) Erg

C) Joule

D) Kilowatt-hour

41. What is the SI unit of pressure?

A) Bar

B) Pascal

C) Torr

D) Atmosphere

42. The SI unit of force is:

A) Dyne

B) Newton

C) Pascal

D) Bar

43. Which SI unit is used to measure the amount of substance?

A) Gram

B) Liter

C) Mole

D) Kilogram

44. The SI unit of time is:

A) Minute

B) Hour

C) Second

D) Day

45. The SI unit of mass is:

A) Gram

B) Milligram

C) Kilogram

D) Tonne

46. Which of the following is a derived unit in the SI system?

A) Meter

B) Kilogram

C) Second

D) Joule

47. The SI unit of thermodynamic temperature is:

A) Celsius

B) Fahrenheit

C) Kelvin

D) Rankine

48. What is the SI unit of electric current?

A) Volt

B) Ohm

C) Ampere

D) Watt

49. The SI unit of luminous intensity is:

A) Lux

B) Candela

C) Lumen

D) Steradian

50. Which of the following is NOT a fundamental unit in the SI system?

A) Meter

B) Kilogram

C) Second

D) Newton

System of units and SI units - Question Bank