Part AWhat is the energy range (in joules) of photons of wavelength 420 nm to 750 nm ?Express your answers using two significant figures separated by a comma.?Emin Emax =JSubmitRequest AnswerPart BWhat is the energy range (in eV) of photons of wavelength 420 nm to 750 nm ?Express your answers using two significant figures separated by a comma.Emin. Emax =eVSubmitRequest Answer

Given, λmin= 420 nm = 420*10-9 m λmax= 750 nm = 750*10-9 m We know that, E = hc/λ where,…

Answered: Part A What is the energy range (in…

Modern Physics

3rd Edition

ISBN:9781111794378

Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Publisher:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Chapter3: The Quantum Theroy Of Light

Section: Chapter Questions

Problem 40P

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Similar questions

To “see” such an orbiting electron by using a light microscope to measure the electron’s presumed orbital position with a precision of 10 pm (1 p = 1 pico = 10^-12), (a) What would be the photon energy of this light? (b) How much energy would such a photon impart to an electron in a head-on collision?
Does a beam of infrared photons always have lessenergy than a beam of ultraviolet photons? Explain.(b) Does a single photon of infrared light always have lessenergy than a single photon of ultraviolet light? Why?
Q. 1. What is the reason behind the glow in metals? How Plank’s formulated the energy in blackbody radiation emission?
Observers at a safe distance from atmospheric test of a nuclear bomb feel its heat but receive none of its copious x rays. Why is air opaque to x rays but transparent to infrared?
Experiments are performed with ultra-cold neutrons having velocities as small as 1.00 m/s. (a) What is the wavelength of such a neutron? (b) What is its kinetic energy in eV?
The star Betelgeuse has a surface temperature of 3000 K and is 600 times the diameter of our sun. (If our sun were that large, we would be inside it!) Assume that it radi- ates like an ideal blackbody. (a) If Betelgeuse were to radiate all of its energy at the peak-intensity wavelength, how many photons per second would it radiate? (b) Find the ratio of the power radiated by Betelgeuse to the power radiated by our sun (at 5800 K).
Let's say that a photon has a wavelength of 40 microns (aka micrometers). Knowing that h*c = 1240 eV*nm, how much energy is this photon carrying in eV? (Hint: pay attention to your unit conversions; 10^6 micrometers = 1 meter and 10^9 nanometers = 1 meter)
MerCadTel devices are like digital cameras, but for infrared radiation.a) Suppose you observe an object using a wavelength of 5 microns (5e-6m). What is theenergy of these photons?b) If the work function of the MerCadTel substrate (the detector surface) is 0.13eV, whatis the kinetic energy of the electron that is liberated from the detector?
The human eye can respond to as little as 3 x 10 -17 of light energy. For awavelength at the peak of visual sensitivity, 550 nm, how many photons will lead to an observable flash?

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