Concept explainers
(a)
The de Broglie wavelength of electron of kinetic energy
Answer to Problem 63QAP
The de Broglie wavelength of the electron is
Explanation of Solution
Given:
The kinetic energy of the electron is
Formula used:
The de Broglie wavelength expression is given by,
Calculation:
Putting the values of h, m and K in the above equation we get
Conclusion:
So, the de Broglie wavelength of the electron is
(b)
The de Broglie wavelength of electron of kinetic energy
Answer to Problem 63QAP
The de Broglie wavelength of the electron is
Explanation of Solution
Given:
The kinetic energy of the electron is
Formula used:
The de Broglie wavelength expression is given by,
Calculation:
Putting the values of h, m and K in the above equation we get
Conclusion:
So, the de Broglie wavelength of the electron is
(c)
The de Broglie wavelength of electron of kinetic energy
Answer to Problem 63QAP
The de Broglie wavelength of the electron is
Explanation of Solution
Given:
The kinetic energy of the electron is
Formula used:
The de Broglie wavelength expression is given by,
Calculation:
Putting the values of h, m and K in the above equation we get,
Conclusion:
So, the de Broglie wavelength of the electron is
(d)
The de Broglie wavelength of electron of kinetic energy
Answer to Problem 63QAP
The de Broglie wavelength of the electron is
Explanation of Solution
Given:
The kinetic energy of the electron is
Formula used:
The de Broglie wavelength expression is given by
Calculation:
Putting the values of h, m and K in the above equation we get
Conclusion:
So, the de Broglie wavelength of the electron is
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Chapter 26 Solutions
COLLEGE PHYSICS-ACHIEVE AC (1-TERM)
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- Integrated Concepts A certain heat lamp emits 200 W of mostly IR radiation averaging 1500 nm in wavelength. (a) What is the average photon energy in joules? (b) How many of these photons are required to increase the temperature of a person's shoulder by 2.0°C, assuming the affected mass is 4.0 kg with a specific heat of 0.83kcal/kgC. Also assume no other significant heat transfer. (c) How long does this take?arrow_forwardWhat is the velocity of a 0.400-kg billiard ball if its wavelength is 7.50 cm (large enough for it to interfere with other billiard balls)?arrow_forwardIntegrated Concepts What double-slit separation would produce a first-order maximum at 3.00° for 25.0-keV x rays? The small answer indicates that the wave character of x rays is best determined by having them interact with very small objects such as atoms and molecules.arrow_forward
- Which aspects of the photoelectric effect cannot be explained without photons? Which can be explained without photons? Are the latter inconsistent with the existence of photons?arrow_forwardAn x ray tube has an applied voltage of 100 kV. (a) What is the most energetic x-ray photon it can produce? Express your answer in electron volts and joules. (b) Find the wavelength of such an X—ray.arrow_forwardIntegrated Concepts A carbon dioxide laser used in surgery emits infrared radiation with a wavelength of 10.6 m. In 1.00 ms, this laser raised the temperature of 1.00 cm3 of flesh to 100°C and evaporated it. (a) How many photons were required? You may assume flesh has the same heat of vaporization as water. (b) What was the minimum power output during the flash?arrow_forward
- Integrated Concepts An electron microscope passes 1.00-pm-wavelength electrons through a circular aperture 2.00 m in diameter. What is the angle between two just-resolvable point sources for this microscope?arrow_forwardIntegrated Concepts The 54.0-eV electron in Example 29.7 has a 0.167-nm wavelength. If such electrons are passed through a double slit and have their first maximum at an angle of 25.0°, what is the slit separation d?arrow_forwardWhich type of radiation is most suitable for the observation of diffraction patterns on crystalline solids; radio waves, visible light, or X-rays? Explain.arrow_forward
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