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A laser dazzles the audience in a rock concert by emitting green light with a wavelength of 515 nm . Calculate the frequency of the light. Express your answer with the appropriate units.

Answer :

KvngDami

Answer:

Explanation:

This question is quite tricky. Not all parameters were provided.

λ = 515nm(nm = namo meters), 515 nm becomes 515 x 10^-9 which in turn becomes 5.15 x 10^-7.

The velocity for the green light wasn't provided but the velocity of greenlight is a constant; velocity of green light(v) = 3.00 × 108 m/s.

frequency of the light =[tex]\frac{velocity of green light}{wavelength of light}\\[/tex]

f =[tex]\frac{3.00 X 108 m/s}{5.15 X 10^{-7} }[/tex]

f=20.971 Hertz

Cricetus

The frequency of light will be "20.971 Hz".

According to the question,

Wavelength,

  • [tex]\lambda = 515 \ nm[/tex]

or,

          [tex]= 5.15\times 10^{-7} \ m[/tex]

Velocity of green,

  • [tex]v = 3.00\times 108 \ m/s[/tex]

The frequency of light (f) will be:

= [tex]\frac{Velocity}{Wavelength}[/tex]

= [tex]\frac{3.00\times 108}{5.15\times 10^{-7}}[/tex]

= [tex]20.971 \ Hz[/tex]

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