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A photon has a wavelength of 6.2 meters. Calculate the energy of the photon in joules. (Planck's constant is 6.626 and times 10-34 joule seconds the speed of light is?
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What is the relationship between wave length and energy on the electromagnetic spectrum?
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.
What is a waves speed if its length is 72 and its period is 5 seconds?
For any wave:speed = wavelength x frequency So, you must simply calculate the frequency first (it is 1/period), then multiply that by the wavelength.
What is the unit of measurement of EM wave frequency?
Seconds for wavelength, and inverse seconds for frequency also known as hertz. Hz
What is the wavelength of heroin?
To calculate the wavelength, you need to know two pieces of information: how much heroin there is (in grams) and how fast this heroin is moving (in fractions of c).De Broglie gave us the equation to calculate the wavelength of matter waves, given by: wavelength=h/p where h is Planck's constant, equal to 6.626*10^(-34) Joule-seconds, and p is momentum. Relativistic momentum is given by: p=(mass*velocity)/(sqrt(1-(v/c)^2)), where c is the speed of light, equal to approximately 2.9979*10^8 m/s. So, for example, 1 gram of heroin traveling at half the speed of light (1.499*10^8 m/s) would have a wavelength of 3.828 * 10^(-39) meters! This is 4 orders of magnitude smaller than 1 Planck length, thought to be the smallest possible length in the Universe. Even a particle of dust is far too big to have an observable wavelength. But things like atomic nuclei and leptons are small enough for their de Broglie wavelengths to be observed.Read more: How_do_you_calculate_the_wavelength_of_heroin
What frequency corresponds to 9.3MM?
Assuming you are reffering to electromagnetic radiation, i.e. light, the formula for this is simply frequency*wavelength = speed (in this case a constant, the speed of light). Then, frequency = (speed of light) / wavelength, speed of light ~= 3 * 10^8 meters / second, and wavelength = 9.3 mm = 9.3 * 10^-3 m. Therefore frequency ~= (3 * 10^8) / (9.3 * 10^-3) = 27.9 * 10^5 Hz = 2.79 MHz, where 1 Hz = 1 / seconds.
What is the base unit of Plancks constant?
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.
What is the relationship between wave length and energy on the electromagnetic spectrum?
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.
What is a waves speed if its length is 72 and its period is 5 seconds?
For any wave:speed = wavelength x frequency So, you must simply calculate the frequency first (it is 1/period), then multiply that by the wavelength.
If a sound wave is traveling 2.5 meters and it takes 0.0073 seconds what is its frequency and wavelength?
There isn't enough information in this question. You can calculate the speed of the wave (distance divided by time), which is the frequency times the wavelength. But you still need one of them to find the other.
What is the frequency in hertz and the energy in joules of an x-ray photon with a wavelength of 2.32 Å?
For the frequency, first convert the wavelength to meters (divide the number of Angstroms by 1010), then use the formula: wavelength x frequency = speed. Using the speed of light in this case. Solving for frequency: frequency = speed / wavelength. To get the photon's energy, multiply the frequency times Planck's constant, which is 6.63 x 10-34 (joules times seconds).
How do you calculate mph from seconds?
MPH = miles per hour. In order to calculate hours from seconds, you just need to know that there are 3,600 seconds in an hour.
What is the unit of measurement of EM wave frequency?
Seconds for wavelength, and inverse seconds for frequency also known as hertz. Hz
What is the frequency of a wave if the wavelength is 10 meters and period is 5 seconds?
The frequency is 1/5 = 0.2 Hertz. The wavelength is irrelevant in this question.
Is the length of seconds pendulum is constant?
yes
What is the period of a wave traveling 5 ms if its wavelength is 20 m?
20/5 = 4 seconds
A dipper in a ripple tank is bobbing up and down 16 times every two seconds The wavelength of the waves is 2cm how far will it travel in 10 seconds?
The velocity is equal to the frequency times the wavelength. Freq = 8Hz ("per second") wavelength = 2 cm 2x8=16cm/s Then multiply the velocity by the elapsed time... 16cm/s x 10sec. (seconds cancel as units) 160cm
How do you calculate the amount of seconds in a day?
Multiply by 24x60x60. This is 86400 seconds in a day.
