Free Test dimensions, errors – NEET

Q1: Which of the following has the same dimensions as energy?

A. Work B. Power C. Force D. Momentum

Q2: Dimensional formula of impulse is same as that of

A. Force B. Momentum C. Energy D. Pressure

Q3: Which of the following quantities is dimensionless?

A. Force B. Pressure C. Strain D. Work

Q4: Dimensional formula of Planck’s constant is

A. ML²T⁻¹ B. MLT⁻² C. ML²T⁻² D. MLT⁻¹

Q5: Dimensional formula of gravitational constant G is

A. M⁻¹L³T⁻² B. MLT⁻² C. M⁻²L²T⁻² D. M⁻¹L²T⁻²

Q6: Which one is not a source of systematic error?

A. Instrumental error B. Environmental changes C. Personal bias D. Random fluctuation

Q7: Which of these is a random error?

A. Zero error B. Instrumental error C. Fluctuations due to observation D. Calibration error

Q8: The number 0.00250 has how many significant figures?

A. 2 B. 3 C. 4 D. 5

Q9: Percentage error in A × B / C is

A. Sum of percentage errors of A, B and C B. A + B − C C. Square root of sum of squares D. None of the above

Q10: Dimensional formula of surface tension is

A. MT⁻² B. MLT⁻² C. MT⁻¹ D. ML⁰T⁻²

Q11: Which has dimensional formula ML²T⁻³?

A. Power B. Energy C. Force D. Momentum

Q12: The accuracy of a measurement depends on

A. Systematic error B. Instrument least count C. Random error D. All of the above

Q13: Which of the following is a scalar with dimensional formula ML²T⁻²?

A. Momentum B. Energy C. Force D. Impulse

Q14: What is the dimensional formula of modulus of elasticity?

A. ML⁻¹T⁻² B. MLT⁻² C. ML²T⁻² D. ML⁻²T⁻²

Q15: Which quantity has dimensional formula M⁰L⁰T⁰?

A. Work B. Power C. Strain D. Impulse

Q16: Which of the following quantities has dimensions of angular momentum?

A. Force B. Torque C. Energy D. Planck’s constant

Q17: Which of the following will not affect random error?

A. Human reaction time B. Environmental noise C. Faulty apparatus D. Fluctuations in readings

Q18: Which of the following has the same dimensional formula as pressure?

A. Energy B. Stress C. Work D. Power

Q19: When same quantity is measured multiple times and results are close, it is called

A. Accurate B. Precise C. Uncertain D. Error prone

Quiz for dimensions, errors