How much work does the electric field do in moving a proton from a point with a potential of +130 v to a point where it is -70 v
1 answer:
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Answer:
Frequency,
Explanation:
Given that,
The wavelength of the x-rays,
We need to find the frequency of an x-ray. All electromagnetic wave travel with a speed of light. It is given by the formula as :
f is the frequency
So, the frequency of an x-ray is . Hence, this is the required solution.
Answer:
206 pm
Explanation:
We are given that
Potential difference,
Distance,d=
We have to determine the de Brogile wavelength of the electron.
A=11 and B=5
Charge on electron,q =
Mass of electron=m=
Speed of electron,
Using the formula
v=
de Brogile wavelength,
Where
1 pm=