Question

Electrons are accelerated in a television screen tube with a potential difference about 10,000 volts. Find...

Electrons are accelerated in a television screen tube with a potential difference about 10,000 volts. Find the maximum frequency of X-rays that are emitted when these electrons hit the screen.

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Energy gained by the electron by accelerating in a voltage ( V ) is

Also from Planck's law, Energy of a photon of frequency ( )  given by,  

That is,  

That is Frequency,

Charge of electron,

Voltage,

Planck's Constant,

Substitutimg,

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Q. Electrons are accelerated in a television tube through a potential difference of 9.8 kV. Find...
Q. Electrons are accelerated in a television tube through a potential difference of 9.8 kV. Find the highest frequency and minimum wavelength of the electromagnetic wave emitted, when theses electrons strike the screen of the tube. In which region of the spectrum will these waves lie?   and Q. High energy photons ( y -rays) are scattered from electrons initially at rest. Assume the photons are backscatterred and their energies are much larger than the electron’s rest-mass energy, E >> m0c2...
In a color television tube, electrons are accelerated through a potential difference of  15500 V. With what...
In a color television tube, electrons are accelerated through a potential difference of  15500 V. With what speed do the electrons strike the screen? Give this speed in terms of the speed of light. Hint: The kinetic energy of an electron which has been accelerated through a potential difference of 1 V has a kinetic energy equal to 1 eV. The Range of answers is between  0.230 and 0.310c I tried to use the conservation principle (1/2 mv2=qv), but that didn't get...
Electrons are accelerated through a potential difference of 25 kV and then incident on a metal...
Electrons are accelerated through a potential difference of 25 kV and then incident on a metal target, creating x-rays. What are the following quantities? a) minimum X-ray frequency? b) maximum X-ray frequency? c) minimum X-ray wavelength? d) maximum X-ray wavelength?
An evacuated tube uses a potential difference of ΔV = 0.58 kV to accelerate electrons, which...
An evacuated tube uses a potential difference of ΔV = 0.58 kV to accelerate electrons, which then hit a copper plate and produce X-rays. Write an expression for the non-relativistic speed of these electrons v in terms of e, ΔV, and m, assuming the electrons start from rest. Calculate the non-relativistic speed of these electrons v in m/s. & The temperature near the center of the Sun is thought to be about 15 million degrees Celsius, that is, 1.5 ×...
1.In a television picture tube, electrons strike the screen after being accelerated from rest through a...
1.In a television picture tube, electrons strike the screen after being accelerated from rest through a potential difference of 19000 V. The speeds of the electrons are quite large, and for accurate calculations of the speeds, the effects of special relativity must be taken into account. Ignoring such effects, find the electron speed just before the electron strikes the screen. 2.During a lightning flash, there exists a potential difference of Vcloud - Vground = 1.0 x 109 V between a...
Electrons are accelerated through a potential difference of 3.59 kV in a cathode ray tube. Calculate...
Electrons are accelerated through a potential difference of 3.59 kV in a cathode ray tube. Calculate the de Broglie wavelength of the electrons.
In a cathode ray tube, electrons initially at rest are accelerated by a uniform electric field...
In a cathode ray tube, electrons initially at rest are accelerated by a uniform electric field of magnitude 4.00 × 105 N/C during the first 4.00 cm of the tube’s length; then they move at essentially constant velocity another 54.0 cm before hitting the screen. Find the speed of the electrons when they hit the screen. How long does it take the electrons to travel the length of the tube?
In a cathode ray tube, electrons initially at rest are accelerated by a uniform electric field...
In a cathode ray tube, electrons initially at rest are accelerated by a uniform electric field of magnitude 4.00 × 105 N/C during the first 6.00 cm of the tube’s length; then they move at essentially constant velocity another 45.0 cm before hitting the screen. a) Find the speed of the electrons when they hit the screen b) How long does it take the electrons to travel the length of the tube?
A number of electrons are accelerated from rest through a potential difference V. They are then...
A number of electrons are accelerated from rest through a potential difference V. They are then incident on a double slit setup with slit spacing d=74.4nm. The m=672 order maximum for this pattern is observed at θ=14.6∘ from the normal to the slits. 1. What is the wavelength of the electrons? 2. What is the momentum of this electron? 3. Making the approximation that relativistic effects are negligible, what is potential difference, V, through which the electrons were accelerated?
Through how many volts of potential difference must an electron be accelerated to achieve a wavelength...
Through how many volts of potential difference must an electron be accelerated to achieve a wavelength of 0.83 nm?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT