Question

The unit of plank's constant is‐----
a)JS
b)JS-1
c)JS-2
d)JS2​

Answer 1

Joule second.

Option a) is the correct answer.

• Plank's constant is calculated by the product of energy multiplied by time.
• An action is called quantity.
• Therefore we can call Planck’s constant the elementary quantum of action.
• The unit of Planck’s constant is meter-kilogram-second units.
• The value of this units is 6.62607015 × 10−34 joule seconds.

Hence, The unit of plank's constant is joule seconds.

Answer 2

Joules per second

The correct answer is option a).

The unit of plank's constant is JS

• The product of energy multiplied by time yields Plank's constant.

• Quantity is a term used to describe an action.

• As a result, we can refer to Planck's constant as the fundamental quantum of action.

• Planck's constant is measured in meter-kilogram-second units.

• This unit has a value of 6.62607015 1034 joule seconds.

• As a result, joule seconds are the unit of plank's constant.