Physics · Dawn of Modern Physics | MDCAT MCQ

Question

The value and units of the Planck constant ‘h’ can be expressed as:

Options

A
3.63 x 10-34 Js
B
6.63 x 10-34 Js-1
C
6.63 x 10-34 Js
D
6.63 x 10-43 Js

Explanation

Planck's Constant tells us the relationship between energy and frequency of light.The Planck constant, denoted by 'h', is a fundamental constant in quantum mechanics. Its value and units are as follows:Value of the Planck constant (h):h = 6.62607015 × 10-34 joule-secondsSince 'energy' is denoted by Joules (J) and 'frequency', by '1/hz or sec'; Planck's constant has the units, Js.

This value is incorrectThe Planck constant, denoted by 'h', is a fundamental constant in quantum mechanics. Its value and units are as follows:Value of the Planck constant (h):h = 6.62607015 × 10-34 joule-secondsSince 'energy' is denoted by Joules (J) and 'frequency', by '1/hz or sec'; Planck's constant has the units, Js.

The Planck constant, denoted by 'h', is a fundamental constant in quantum mechanics. Its value and units are as follows:Value of the Planck constant (h):h = 6.62607015 × 10-34 joule-secondsSince 'energy' is denoted by Joules (J) and 'frequency', by '1/hz or sec'; Planck's constant has the units, Js.

This value is incorrectThe Planck constant, denoted by 'h', is a fundamental constant in quantum mechanics. Its value and units are as follows:Value of the Planck constant (h):h = 6.62607015 × 10-34 joule-secondsSince 'energy' is denoted by Joules (J) and 'frequency', by '1/hz or sec'; Planck's constant has the units, Js.