Free Test Units and measurements – NEET

Q1: Which of the following is not a fundamental quantity?

A. Length B. Mass C. Time D. Velocity

Q2: SI unit of electric current is

A. Ohm B. Ampere C. Volt D. Coulomb

Q3: Dimension of force is

A. MLT⁻² B. ML²T⁻¹ C. MLT⁻¹ D. M²LT⁻²

Q4: Which of the following pairs have same dimensions?

A. Energy and power B. Work and torque C. Momentum and force D. Pressure and energy

Q5: Error due to instrument imperfection is called

A. Systematic error B. Random error C. Gross error D. Parallax error

Q6: The number of significant figures in 0.00450 is

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

Q7: Which is a derived unit?

A. Meter B. Second C. Kilogram D. Newton

Q8: Which of the following is dimensionless?

A. Strain B. Force C. Velocity D. Impulse

Q9: Dimensional formula of pressure is

A. ML⁻¹T⁻² B. MLT⁻² C. ML²T⁻² D. ML⁻²T²

Q10: If g = 9.8 m/s², what is its dimension?

A. L⁻¹T⁻² B. LT⁻² C. MLT⁻¹ D. MLT⁻²

Q11: What is the dimensional formula of energy?

A. MLT⁻² B. ML²T⁻² C. ML²T⁻¹ D. M²LT⁻²

Q12: The unit of Planck’s constant is

A. Joule-second B. Watt C. Volt-second D. Coulomb

Q13: Which quantity has dimension ML²T⁻³?

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

Q14: Which has same dimension as momentum?

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

Q15: Which is not a unit of energy?

A. Joule B. Erg C. Electronvolt D. Newton

Q16: 1 nanometer is equal to

A. 10⁻⁶ m B. 10⁻⁹ m C. 10⁻³ m D. 10⁻⁸ m

Q17: Which instrument is used to measure small lengths accurately?

A. Screw gauge B. Thermometer C. Barometer D. Voltmeter

Q18: Which quantity has the unit kg·m²/s²?

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

Q19: Which is the correct representation of 6.02 × 10²³ in scientific notation?

A. 6.02E23 B. 602E21 C. 6.02*10^23 D. All of the above

Q20: Which quantity has dimensions ML²T⁻¹?

A. Angular momentum B. Work C. Torque D. Energy

Quiz for Units and measurements