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What is the frequency of yellow light with? e = 3.4 x 10 ^-19 j?

What is the frequency of yellow light with? e = 3.4 x 10 ^-19 j?-example-1
User Yanick Nedderhoff
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1 Answer

16 votes
16 votes

Answer:

5.1 x 10¹⁴ Hz

Step-by-step explanation:

To find the frequency, you need to use the following equation:

E = hf

In this equation,

-----> E = energy (J)

-----> h = Planck's Constant (6.626 x 10⁻³⁴ J·s)

-----> f = frequency (Hz)

You can plug the given values into the equation and simplify to find "f". The final answer should have 2 sig figs like the given measured value (h is a constant, so it's sig figs are irrelevant).

E = hf <----- Given equation

3.4 x 10⁻¹⁹ J = (6.626 x 10⁻³⁴ J·s)f <----- Insert variables

5.1 x 10¹⁴ Hz = f <----- Divide both sides by 6.626 x 10⁻³⁴

User Matias Haeussler
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2.6k points