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The spectrum of object glowing because of their temperature -- a phenomena called "blackbody radiation" -- was a (no pun intended) "hot topic" in the late 1800s. Because all types of matter was found to have the same spectrum at the same temperature (more or less), it was felt that understanding BBR would give insight into the basic nature of matter.
Developing an explanation for what was seen in experiments frustrated the scientific community so much that Max Planck decided to see if he could develop a mathematical explanation. He found he could mathematically explain the spectrum by assuming that the light coming from a blackbody came in discrete parts (he called them "quanta") where the energy of each quanta was equal to a constant 'h' times the frequency of that light, What he never considered was that his mathematical explanation was what actually WAS HAPPENING -- that light really DOES come in quanta. The constant that he used to derive his formula is now called "Planck's Constant," and it is a fundamental aspect of the Universe we happen to live in.
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Why LED is used to determine planks constant?
led is used to determine Plancks constant
When did max plank discover the quantum theory?
Max Planck discovered that radiant energy was a proportional to the frequency of the radiation, E=hf and the constant of proportionality is Planck' Constant, h.
What are the units for planks constant?
Planck's Constant units are energy-seconds. Planck's Constant is the product of two fundamental Quantum constants, W and C. W is the magnetic charge of "free space" and C is the electric charge of "free space". The value of W= 500 atto Webers and C= 4/3 atto Coulombs. The "free space" impedance z is the ratio of the two quantum constants z=W/C = 375 Ohms.
Who Discovered Isobars In Chemistry and Isobar Definition?
Isobars are a point or line drawn on map that connects the places of constant pressure e.g, atmospheric pressure or sea level.
How is energy related to frequency?
Frequency has a great relationship with energy. The higher the amount of energy the higher the frequency will be for example.
Dimension for planks constant in M L T form?
what is the dimension of planks constant
What is the value of planks's constant?
6.63*10^-34
What is value of planks constant?
6.63*10^-34
Why LED is used to determine planks constant?
led is used to determine Plancks constant
What is the value of planks constant?
6.626x10-34 m2kg/s is the value of Plank's constant.
Unit of planks constant?
meter2 - kilogram per second
What is the purpose of filter in planks constant experiment?
To get the required wavelength of light
Is gas constant equal to planks constant?
No, gas constant is having a value of 8.314Jk-1mol-1 Whereas plancks constant has a value of 6.6*10-31
What is the physical significance of planks constant?
Planck's Constant (abbreviated as 'h'), when first "discovered," was found to be the ratio of the energy of an individual photon to the frequency of that photon's light. In other words, the energy of a photon is equal to h times the photon's frequency. It has since been found that h fits into a wide variety of formula that allow us to understand the Universe we happen to live in. Without this constant, a lot of our Universe would be incomprehensible.
What is the significance of the planks constant?
Planck's Constant (abbreviated as 'h'), when first "discovered," was found to be the ratio of the energy of an individual photon to the frequency of that photon's light. In other words, the energy of a photon is equal to h times the photon's frequency. It has since been found that h fits into a wide variety of formula that allow us to understand the Universe we happen to live in. Without this constant, a lot of our Universe would be incomprehensible.
Who discovered law of constant proportions?
A scientist named proust discovered it in 1779 A.D.
What is the lowest light energy in the electromagnetic spectrum?
answer: The wavelength of light is measured in full integers of Planks constant so by definition, the least energy a photon can Carrie is define by Plank's constant and is referred to has the Planck energy.
