CONCEPT 2 VII IIT

Physical quantity is equal to

• numerical value X physical quantity

• numerical value /unit

• numerical value X unit

• None

Answer explanation

The physical quantity is equal to the numerical value divided by the unit. Therefore, the correct choice is 'numerical value / unit.'

Among the following the odd one

• Pound

• Quintal

• Ton

• Angstrom

Answer explanation

Among the given options, Angstrom is the odd one out as it is a unit of length, while Pound, Quintal, and Ton are units of weight.

1 unit of Time is

• Meter

• Par sec

• Second

• kelvin

Answer explanation

1 unit of Time is measured in seconds, making 'Second' the correct choice.

Which of the following is a derived physical quantity?

• Mass

• Force

• Length

• Time

Answer explanation

The correct choice is Force because it is a derived physical quantity that is calculated using mass and acceleration (F = ma). Mass, length, and time are fundamental physical quantities.

What is the SI unit of electric current?

• Ohm

• Volt

• Ampere

• Watt

Answer explanation

The SI unit of electric current is Ampere, so the correct answer is Ampere.

What is the SI unit of luminous intensity?

• Candela

• Lumen

• Lux

• Watt

Answer explanation

The SI unit of luminous intensity is Candela, which is denoted by the symbol cd. It measures the amount of light emitted in a particular direction.

What is the SI unit of temperature?

• Kelvin

• Celsius

• Fahrenheit

• Rankine

Answer explanation

The SI unit of temperature is Kelvin, making it the correct choice among the options provided.

In F.P.S system the units fundamental units are

• Foot

• Pound

• second

• feet

Answer explanation

In the F.P.S system, the fundamental units are foot, pound, and second.

What is the SI unit of electric charge?

• Ohm

• Volt

• Ampere

• Coulomb

Answer explanation

The SI unit of electric charge is Coulomb, which is represented by the symbol 'C'. It is named after Charles-Augustin de Coulomb, a French physicist.

Which of the following is a scalar quantity?

• Force

• Velocity

• Acceleration

• Pressure

Answer explanation

Pressure is a scalar quantity because it has magnitude but no direction. Force, velocity, and acceleration are vector quantities as they have both magnitude and direction.