If light travels at 3 · 108 m/s and its frequency is 6 · 1015 Hz, then its wavelength is:

A) 10 · 107 m

B) 5 · 10-8 m

C) 5 · 10-7 m

D) 10 · 10-7 m

Question

Griffith

Physics

19 September, 04:41

If light travels at 3 · 108 m/s and its frequency is 6 · 1015 Hz, then its wavelength is:

A) 10 · 107 m

B) 5 · 10-8 m

C) 5 · 10-7 m

D) 10 · 10-7 m

+1

Answers (1)

Know the Answer?

Hannah Meyer · Answer 1

Answer: 5*10^-8 (B)

Explanation:

-Given that the light is the speed

-We will be following the formula:

V = f (λ)

Where,

V is the velocity

F is the frequency

λ is the wavelength

3*10^8 = (6*10^15) * λ

(3*10^8) / (6*10^15) = λ

5*10^-8m = λ answer

Note: λ is initially 0.5*10^-7 but to make it in the standard form it should be 5*10^-8. And do not forget to place the unit for the wavelength i. e. meter (m) otherwise you may lose marks!

If light travels at 3 · 108 m/s and its frequency is 6 · 1015 Hz, then its wavelength is:A) 10 · 107 mB) 5 · 10-8 mC) 5 · 10-7 mD) 10 · 10-7 m

If light travels at 3 · 108 m/s and its frequency is 6 · 1015 Hz, then its wavelength is:

A) 10 · 107 m

B) 5 · 10-8 m

C) 5 · 10-7 m

D) 10 · 10-7 m