Answered: At a given temperature a body emits… | bartleby

Related questions

Question

At a given temperature a body emits energy of a single wavelength corresponding to that temperature. True or False?

a) True

b) False

Expert Solution

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Blurred answer

Similar questions

A black body at 200 K is found to emit maximum energy at a wavelength 14μm. When its temperature is raised to 1000K, then wavelength at which maximum energy emitted it? a) 14mm b) 7μm c) 2.8μm d) 28mm
A conventional medical X-ray produces .A one-dimensional .B four -dimensional .C two-dimensional .D three-dimensional
Thermal neutrons are produced by a fission nuclear reactor. The temperature of the neutrons is about room temperature, T 2 299 K. The kinetic energy of the neutron is E = kgT, where kp = 1.38 x 10–23 J/K is the Boltzmann constant. The mass of a neutron is m, = 1.67 x 10-27 kg. Part 1) Calculate the de Broglie wavelength of a thermal neutron. nm Part 2) The highest energy photons ever observed are y-rays with energies up to 311 trillion electron volts, Ey = 311 × 102 eV. The rays come from the Crab nebula, the remnant of a supernova explosion. Calculate the wavelength of these photons. m Part 3) A position uncertainty of an electron in a hydrogen atom is about size of the atom, which is Aæ = 0.500 Å = 0.500 × 10–10 m. Using the Heisenberg uncertainty relation, Ap Ax = , calculate the related kinetic energy (zero motion energy): (Ap? 2m E = 2m The electron mass is m = :0.910 x 10-30 kg. E eV
A neutral atom of the element boron (B) has 5 electrons. Four of the electrons are removed, forming an ion with the one remaining electron. a) Sketch an energy level diagram for this ion, showing the ground state and the first two excited states. Label each state with the value of its energy. b) Calculate the two longest wavelengths at which this ion can absorb radiation. Assume all absorption occurs from the ground state. c) What is the minimum amount of energy needed to remove the electron from the ground state of this ion?
14 A photon with a frequency of 5.02 x 10Hz is absorbed by an excited hydrogen atom which causes the electron to be ejected from the atom, forming an ion. Determine the energy of the photon, (Speed of light = 3.0 x 108 m/s, mass of proton = 1.0078250, mass of neutron = 1.008665U, 1U = 931.5- Planck's constant = 6.63 x 10-34 Js, mass of electron = 9.11 x 10-31 kg, Rydberg constant = 1.1 x 107 m. eV = 1.6 × 10-¹9 C). MeV Select one: O O a. 1.2 eV b. 2.1 eV c. 3.2 eV d. 4.1 eV
QUESTION 13 Removing an electron from the metal requires 3.5 eV. The conversion between eV and J is: 1 eV = 1.6 x 10-19 J a) How many Joules is that? b) What is the velocity of the electron upon emission if the electron's mass is m-9.1*10-31 kg?
While being X-rayed, a person absorbs 3.9x10 J of energy. Part A Determine the number of 40,000-eV X-ray photons absorbed during the exam. " Templates Symbols undo rego reset keyboard shortcuts Help n= Submit Request Answer
4.-The radius of the Sun is 6.96 × 108 m, and its total emitted energy is 3.85 × 1026 W.a) Assuming that the surface of the Sun radiates as if it were a blackbody, calculate its surface temperature.b) Using the result of part a), determine λmax for the Sun.
A photon of light has a frequency of 5.00 x 1014 Hz. If the frequency of the photon was doubled then which of these would happen to the energy of this photon? a. it would become one-fourth as much b. it would become half as much c. it would double d. it would quadruple e. it would triple
Optional
1. A carpenter builds an exterior house wall made of wood 3.0 cm thick. The wood has k = 0.080 W/mk. The interior temperature is 19°C and the exterior surface temperature is 9°C. What is the rate of heat flow per square meter through this wall? 2. What is the wavelength for the energy maximum of blackbody radiation at 30,000°F?
B7

SEE MORE QUESTIONS