Planck's constant is significant because it determines the relationship between the energy of a photon and the frequency of light. It helps to explain the constant wavelength of light by showing how energy is quantized in discrete units.
The value of Planck's constant is approximately 6.626 x 10^-34 m^2 kg / s. It is a fundamental physical constant that relates the energy of a photon to its frequency.
The relationship between electromagnetic energy (photon energy) and wavelength is determined by two constants - the speed of light and Planck's constant. Photon energy (in Joules) is equal to the speed of light (in metres per second) multiplied by Plancks constant (in Joule-seconds) divided by the wavelength (in metres). E = hc/wavelength where: E is photon energy h is Planck's constant = 6.626 x 10-34 Js c is the speed of light = 2.998 x 108 m/s This relationship shows that short wavelengths (e.g. X-rays) have high photon energies while long wavelengths (e.g. Radio waves) have low photon energies.
The maximum kinetic energy of the emitted photoelectron can be calculated using the equation: KE = hf - work function = hc/λ - work function . Substitute the given values, where h is Planck's constant, f is frequency, c is the speed of light, and λ is the wavelength. Find the maximum kinetic energy by calculating the difference between the energy of the incident light and the work function.
Wave speed, frequency, and wavelength are independent of wave amplitude. Wave speed is determined by the medium through which the wave is traveling, frequency is the number of oscillations per unit time, and wavelength is the distance between two consecutive points in phase. Amplitude, on the other hand, is the maximum displacement of a wave from its equilibrium position.
The energy of electromagnetic radiation is directly proportional to its frequency. This relationship is described by Planck's equation: E = hν, where E is the energy, h is Planck's constant, and ν is the frequency. This means that as the frequency of electromagnetic radiation increases, so does its energy.
wavelength since frequency =hc/lambda h=plancks constant and c=velocity of light
Such a melange of dimensions would involve length3 mass2/time4 .Not only has it no physical significance, but, fortunately for all of us,there is no such formula.
First get the wavelength in meters by multiplying Plancks constant (in units of J-sec) times the speed of light (in m/sec) and divided by the energy. Then change to nanometers by multiplying by 1 billion.
No, gas constant is having a value of 8.314Jk-1mol-1 Whereas plancks constant has a value of 6.6*10-31
wavelength = h/p (h= Plancks constant = 6.636*10^-34 kg*m^2/s) p=m*v Combining these gives us v=h/(m*wavelength)=8.37*10^6 m/s
(E) Photon=E2-E1= hv h=Plancks constant v=frequency
The value of Planck's constant is approximately 6.626 x 10^-34 m^2 kg / s. It is a fundamental physical constant that relates the energy of a photon to its frequency.
to find the frequency of a light wave you need to know its wavelength. The frequency is equal to the speed of light (3x10^8 m/s) divided by the wavelength in metres. Alternatively, if you were given the energy of each photon of light in joules you could just divide the energy by plancks constant (6.63x10^-34) to leave you with the frequency in Hz.
The de Broglie wavelength of an electron is given by the equation λ = h / p, where h is the Planck's constant (6.626 x 10^-34 J s) and p is the momentum of the electron (mass x velocity). The momentum of the electron can be calculated as p = m * v, with m being the mass of the electron (9.11 x 10^-31 kg) and v being the velocity (2.5 x 10^8 cm s^-1). Plugging in the values, we can find the wavelength of the electron.
Planck's constant relates the energy level of radiation due to electrons moving from one energy level to another, by the formula Energy = (Planck's constant) x (frequency of radiation). Therefore the dimensions of Planck's constant are (energy)/(frequency) which means Joules x seconds In fact Planck's constant = 6.67 x 10-34 joule.seconds.
The Quantum Theory.
LEDs (Light Emitting Diodes) are used in determining the Planck constant because they emit light at specific frequencies when electrical current is applied. By measuring the voltage needed to produce light of a known frequency, the relationship between energy and frequency can be studied, allowing for the accurate determination of the Planck constant.