A potential difference of 1.0 V was developed across a 10cm long thin metal bar as it moves through a magnetic field at 10m/s. T
he magnetic field is perpendicular to the velocity. What is the strength and direction of the magnetic field?
1 answer:
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Answer:
Explanation:
As we know by the law of diffraction through circular aperture
here we know that
a = diameter of the aperture
= diffraction angle
= wavelength
now we have
Now in order to find the wavelength we know
now we have
Answer:
Explanation:
The path length difference = extra distance traveled
The destructive interference condition is:
where m =0,1, 2,3........
So, ←
⇒ λ = 2Δd = 2×10 = 20