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Lana71 [14]
3 years ago
13

An electron moving in the y direction at right angles to a magnetic field experiences a magnetic force in the x direction The di

rection of the magnetic field is in the A x direction B x direction C y direction D z direction E z direction
Physics
1 answer:
Talja [164]3 years ago
5 0

Answer: A. x direction

Explanation:because the electron is in y direction and it is always perpendicular to the magnetic field

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Coherent light of frequency 6.37×1014 Hz passes through two thin slits and falls on a screen 88.0 cm away. You observe that the
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Answer:

The distance between the two slits is 40.11 μm.

Explanation:

Given that,

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We need to calculate the wavelength

Using formula of wavelength

\lambda=\dfrac{c}{f}

where, c = speed of light

f = frequency

Put the value into the formula

\lambda=\dfrac{3\times10^{8}}{6.37\times10^{14}}

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We need to calculate the distance between the two slits

m\times \lambda=d\sin\theta

d =\dfrac{m\times\lambda}{\sin\theta}

Where, m = number of fringe

d = distance between the two slits

Here, \sin\theta =\dfrac{y}{l}

Put the value into the formula

d=\dfrac{3\times471\times10^{-9}\times88.0\times10^{-2}}{3.10\times10^{-2}}

d=40.11\times10^{-6}\ m

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