Two blocks are connected as shown in the diagram below. Assume that the ramp is frictionless. Draw the force diagram for the blo
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Answer:
Explanation:
Given that,
The frequency of x-ray is,
We need to find the time period of these x-rays. Let it is be T. We know that, the relation between f and T is given by :
T = 1/f
So,
So, the time period of these x-rays is equal to .
Answer:
Explanation:
The energy of the photon must be equal to 0.1 eV, so let's convert this value into Joules first:
The energy of the photon is related to its frequency by
where h is the Planck constant and f is the frequency. Substituting,
And now we can find the wavelength of the photon, which is given by
where c is the speed of light. Substituting,