Question

Which of the following statements is true? A. UV light has higher energy than X-Ray radiation....

Which of the following statements is true?

A.

UV light has higher energy than X-Ray radiation.

B.

UV light has longer wavelength and higher energy than visible light.

C.

UV light has higher energy and higher frequency than visible light.

D.

The higher the frequency of a wave, the lower its energy.

Science   Chemistry   
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Homework Answers

Answer #1

The relationship between energy, frequency, wavelength is

E=hv=hc/(wavelength)

If energy is higher, then frequency is higher and wavelength is lower.

The correct statement is UV light has higher enrgy, higher frequency than visible light.

(C) is correct.

This because the wavelength range of X-rays<200 nm, UV light=200-400 nm, and visible light=400-800 nm.

(A) UV light has higher wavelength than X-rays, then lower energy, not higher energy - wrong.

(B) UV light has shorter wavelength than visible light then higher energy, not longer wavelength - wrong

(D) The higher frequency wave has higher energy not lower energy - wrong.

Thanks and I hope you like it.

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