Grade 11General Physics
What is the SI unit of planks contantand and find dimensions of planks constant, Energy, and force
What is the SI unit of planks contantand and find dimensions of planks constant, Energy, and force
3 Answers
Arun
Dear student
E = h* v
h is planck constant
dimension of h = ML^2 T^-1
hence unit is Joule- sec
Hope it helps
Vikas TU
Dear student
Planck's constant, symbolized h, relates the energy in one quantum (photon) of electromagnetic radiation to the frequency of that radiation. In the International System of units (SI), the constant is equal to approximately 6.626176 x 10-34 joule-seconds.
Its relates the energy carried by a photon to its frequency. A photon's energy is equal to its frequency multiplied by the Planck constant.
E = h* v
Dimention of Planks constant = h = ML^2 T^-1
Hope this helps
Good luck
Cheers
RISHIKA
HEY FRIEND
FOR FINDING PLANKS CONSTANT FIRST WE HAD TO KNOW ITS FORMULA
SO IT IS AS E = h*v h=E/v
NOW, WE KNOW THAT (V)IS FREQUENCY WHICH IS EQUAL TO THE “ RECIPROCAL OF TIME”
THEREFORE, h=E*T
(WE KNOW THAT SI UNIT OF E=JOULE & T =SECOND)
THUS,h=JOULE SECOND
DIMENSION= ML^2T^-1
I THOUGHT IT IS HELPFUL
BE HAPPY
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