Give the name of the instrument used for the measurement of temperature.

One Word/Term Answer

Thermometer.

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Base Quantities and Units

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Chapter 1: Measurement - Exercises [Page 10]

Chapter 1 Measurement
Exercises | Q VI. 2. | Page 10

The coldness or hotness of a substance is expressed by _______.

_______ is used to measure electric current.

If one coulomb of charge is flowing in one minute, it is called ‘ampere’

Amount of substance gives the number of particles present in a substance.

Angle formed at the top of a cone is an example for ‘plane angle’

Consider the statement given below and choose the correct option

Assertion: Electric current, amount of substance, luminous intensity are the fundamental physical quantities.

Reason: They are independent of each other.

Consider the statement given below and choose the correct option.

Assertion: Radian is the unit of solid angle.

Reason: One radian is the angle subtended at the center of a circle by an arc of length equal to its radius.

What do you mean by luminous intensity?

Define – mole.

Mention the SI unit of luminous flux.