Class 11 Physics Unit and Measurement Questions

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Questions and Answers

What is the fundamental SI unit of length?

  • Candela
  • Kilogram
  • Second
  • Meter (correct)

Which of the following is a derived unit?

  • Second
  • Newton (correct)
  • Kilogram
  • Meter

What is the SI unit for measuring time?

  • Second (correct)
  • Mole
  • Ampere
  • Kelvin

Which of the following is a base quantity in the International System of Units (SI)?

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Flashcards

SI unit of length

Meter

Derived unit example

Newton (unit of force).

SI unit for time

Second

Base quantity (SI)

Candela (unit of luminous intensity).

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Base unit, length

Meter

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Derived unit

A unit formed by combining base units.

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Base quantity

Fundamental measure in SI.

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SI unit

International System of Units.

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Newton unit

Unit of force

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Candela unit

Luminous intensity

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Study Notes

Fundamental SI Unit of Length

  • The fundamental SI unit of length is the meter (m).

Derived Units

  • Derived units are formed from base units to measure physical quantities.
  • Examples of derived units include square meters (m²) for area and cubic meters (m³) for volume.

SI Unit for Time

  • The SI unit for measuring time is the second (s).

Base Quantities in SI

  • Base quantities are the fundamental physical quantities in the International System of Units (SI).
  • Examples include length, mass, time, electric current, temperature, amount of substance, and luminous intensity.

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