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3 years ago

7

A light wave travels at a speed of 3.0 × 108 meters/second. If the wavelength is 7.0 × 10-7 meters, what is the frequency of the

wave?

1 answer:

BaLLatris [955]3 years ago

5 0

Answer : The frequency of the wave is, $4.285\times 10^{14}s^{-1}$

Solution : Given,

Speed of light = $3.0\times 10^{8}m/s$

Wavelength of light = $7.0\times 10^{-7}m$

Formula used :

$\nu=\frac{c}{\lambda}$

$\nu$ = frequency of light

$\lambda$ = wavelength of light

c = speed of light

Now put all the given values in the above formula, we get the frequency of light.

$\nu=\frac{3\times 10^8m/s}{7\times 10^{-7}m}=4.285\times 10^{14}s^{-1}$

Therefore, the frequency of the wave is, $4.285\times 10^{14}s^{-1}$

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4 years ago

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Answer:

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Explanation:

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Explanation:

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(A) Calculating initial distance using second equation of motion as :

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When velocity of the particle is zero, time taken is t (say). Using first equation of motion as :

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Answer:

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