Planck's constant has the dimensions of :
A. Energy
B. Linear momentum
C. Angular momentum
D. Force
Answer: Option C
Solution (By Examveda Team)
Planck's constant
, often denoted as "h," has the dimensions of angular momentum
. It is a fundamental physical constant used in quantum mechanics to relate the energy of a photon to its frequency. Planck's constant is represented by the equation:E=h⋅f
Where:
E represents energy,
h is Planck's constant,
f is the frequency of the photon.
The dimensions of Planck's constant (h) are the product of energy and time (ET), and it is often expressed in units like joule-seconds (J·s). Angular momentum also has the dimensions of energy multiplied by time (ET).
Plank's constant has same dimension with angular momentum. [M1L2T-1]
Planks constant has same dimension that of angular momentum.
Mvr = nh/2pi