Physics MCQs

Meaurements – Physics MCQs

If you’re preparing for your secondary school physics exams, check out our blog post with multiple-choice questions (MCQs) designed for Measurements. It’s full of practice questions on topics like units, measuring tools, and accuracy, helping you strengthen your grasp of the basics. Use it to test yourself, build confidence, and get ready for your exams—all tailored for students just like you!

  1. The latest standard of length is:
    1. Light year
    2. Distance travelled by sound in air
    3. Distance travelled by light in vaccum during a time of 1/299792458
    4. Wavelength of orange of Kr 86
  2. The dimensional formula of angular velocity is:
    1. [MLT-1]
    2. [ML0T-2]
    3. [M0L0T-1]
    4. [M0L0T0]
  3. The dimensions of K.E per unit volume of fluid flow is:
    1. [ML2T-2]
    2. [MLT-2]
    3. [ML-1T-2]
    4. [ML-1T2]
  4. The dimensional formula [ML2T-2]represents:
    1. Moment of force
    2. Acceleration
    3. Force
    4. Angular momentum
  5. Steradian is the angle subtended by the:
    1. Arc of length r
    2. Arc of length r2
    3. Patch of area r2
    4. Surface of area r2
  6. Which of the following physical quantity or combination of physical quantities can be dimensionally added to the velocity ‘v’?
    1. St
    2. sqrt(as)
    3. ½ at2
    4. 2aS
  7. The dimensions of mc(where ‘c’ is the velocity of light) are same as that of:
    1. Energy
    2. Plank’s constant
    3. Momentum
    4. Density
  8. Of the following quantities, which one has the dimensions different from the remaining three:
    1. Energy per unit volume
    2. Force per unit area
    3. Angular momentum per unit mass
    4. Stress
  9. The volume of a sheet having dimensions 3.233 m, 2.105 m and 1.05 cm is 7.14573825 m3. Correct this upto appropriate significant digits:
    1. 7.14×106 cm3
    2. 7.15 m3
    3. 7.155 m3
    4. 7.146 m3
  10. An accurate measurement is one which has:
    1. Less absolute  uncertainty
    2. Less fractional uncertainty
    3. Less number of significant figures
    4. All above
  11. Which of the following instrument is more precise?
    1. Meter rod
    2. Vernier calipers
    3. Micrometer screw guage
    4. Interferometer
  12. The number of significant figures in the measurement of 0.00770 cm is:
    1. 2
    2. 3
    3. 4
    4. 5
  13. The uncertainty in the length and diameter of a cylinder is 0.2% and 0.8%. So the uncertainty in the volume of cylinder is:
    1. 1%
    2. 1.2%
    3. 1.8%
    4. 0.2%
  14. The number of significant figures in the value of 9.10×10-31 are:
    1. 2
    2. 3
    3. 28
    4. 34
  15. Travel time of light from Sun to Earth is:
    1. 1 min and 20 sec
    2. 8 min and 20 sec
    3. 5 hours
    4. 20 min
  16. Light year is a unit of:
    1. Time
    2. Light
    3. Distance
    4. Velocity
  17. One light years is equal to:
    1. 9.46×1015 cm
    2. 9.46×1015 m
    3. 9.46×1015 km
    4. 9.5×1012 m
  18. For the total assessment of uncertainty in the final result obtainedFor the total assessment of uncertainty in the final result obtained by multiplication and division:
    1. Absolute uncertainties are added
    2. Fractional uncertainties are added
    3. %age uncertainties are added
    4. Errors are added
  19. One exa is equal to:
    1. 10-18
    2. 1015
    3. 1018
    4. 10-15
  20. Dimensions of GMm/r2 are:
    1. [ML-1T-1]
    2. [MLT-1]
    3. [ML-1T-2]
    4. [MLT-2]
  21. [ML2T-2K-1] are the dimensions of:
    1. Entropy
    2. Heat capacity
    3. Universal gas constant
    4. Pressure
  22. Colour printing uses just four colours –cyan, magenta, black and:
    1. White
    2. Green
    3. Red
    4. Yellow

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