Answer:
Wavelength is 0.359 m
Explanation:
Given that,
Magnetic field, B = 0.547 T
We need to find the wavelength of radiation produced by a proton in a cyclotron with a magnetic field of 0.547 T.
The frequency of revolution of proton in the cyclotron is given by :
m is mass of proton
q is charge on proton
So,
We know that,
Speed of light, 
= wavelength
So, the wavelength of the radiation produced by a proton is 0.359 m.
Answer:
They oscillates perpendicularly to one another, the oscillation of one field generates the other field.
Explanation:
In a light wave, an oscillating electric field of a light wave produces a magnetic field, and the magnetic field also oscillates to produce an electric field. The magnetic field and the electric field of a light wave both oscillates perpendicularly to one another. The resultant energy and direction of the wave generated as a result of these oscillating fields is propagated perpendicularly to both fields.
The correct symbol is 4He. You may also encounter it displayed as helium-4, He-4.
The iron filings aligned themselves in a pattern, along with the magnet connecting the north and south poles. This creates the “magnetic field”. Interacting with a metal object in between the magnetic properties of the metal interact with the magnet, expressing signs of magnetic force acting on it and the metal, pulled together letting you see the see the effects of the magnetic fields using iron filings.
The efficiency of the device is 30 %
Explanation:
The efficiency of a heat engine is given by:
where
W is the work done by the engine
is the heat in input to the engine
For the device in this problem, we have:
W = 120 J is the work done
is the heat in input
Substituting, we find the efficiency:
which corresponds to an efficiency of 30%.
Learn more about work:
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