If a wave has a velocity of 100m/s and a wavelength of 10m, what is the frequency?
1 answer:
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When a wire is moved inside uniform magnetic field then its free electrons will experience magnetic force on it due to which wire will have potential difference at its ends.
Now here we will have magnetic field due to earth and wire is moving in this constant field so induced emf is given by formula
given that
now by using the above formula we will have
Answer:
Explanation:
We have,
Speed of an electron is
It is required to find the De Broglie wavelength of electron. The formula for the De- Broglie wavelength is given by :
h is Planck's constant
m is mass of an electron
Plugging all the values we get :
So, the De-Broglie wavelength of an electron is