2 Answers

Ken Wolf · Answer 1 · 2019-12-15T09:57:30+0000

Wavelength = 2.25nm = 2.25 x 10^(-9)m

Frequency = 1.33 x 10^17Hz

Speed = 2.25 x 10^(-9) x 1.33 x 10^17 = 2.99 x 10^8m/s

So the answer is: 2.99 x 10^8m/s

Kauppfbi · Answer 2 · 2019-12-21T10:43:07+0000

Answer : The speed of electromagnetic wave is

Explanation : Given,

Frequency of wave =
1.33* 10^(17)Hz=1.33* 10^(17)s^(-1)

Wavelength of wave =
2.25nm=2.25* 10^(-9)m

Formula used :

$\\u=(c)/(\lambda)$

where,

$\\u$ = frequency of light

$\lambda$ = wavelength of light

c = speed of electromagnetic wave = ?

Now put all the given values in the above formula, we get:

1.33* 10^(17)s^(-1)=(c)/(2.25* 10^(-9)m)

c=(1.33* 10^(17)s^(-1))* (2.25* 10^(-9)m)

c=2.99* 10^(8)m/s

Therefore, the speed of electromagnetic wave is

Please log in or register to add a comment.