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babunello [35]
3 years ago
11

Two whistles blow at the same time. The first whistle has a frequency twice that of the second whistle (it is a higher pitch). W

hich sound will reach you first?
Physics
1 answer:
suter [353]3 years ago
7 0

Answer:

the first one

Explanation:

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Explanation:

<h3>Given</h3>

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time = 30 sec

<h3>To find -</h3>

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An electron in the n = 5 level of an h atom emits a photon of wavelength 1282.17 nm. to what energy level does the electron move
lions [1.4K]
This is an interesting (read tricky!) variation of Rydberg Eqn calculation.
Rydberg Eqn: 1/λ = R [1/n1^2 - 1/n2^2]
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Some rearranging and collecting up terms:
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1= 14.07[1/n^2 – 1/25]
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