What is the explanation for how a modern transmission electron microscope (TEM) can achieve a resolution of about 0.2 nanometers
1 answer:
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Answer:
c. nine times as low.
Explanation:
Sound intensity is defined as the acoustic power transferred by a sound wave per unit of normal area to the direction of propagation:
Since the sound wave has a spherical wavefront of radius r, then the area is given by:
Here r is the distance from the source of the sound. Thus sound intensity decreases as:
Answer:
Solution:
As per the question:
Point charge, q =
Test charge,
Work done by the electric force,
Now,
We know that the electric potential at a point is given by:
where
r = separation distance between the charges.
Also,
The work done by the electric force i moving a test charge from point A to B in an electric field: