Chemistry: The Central Science (13th Edition)

Published by Prentice Hall
ISBN 10: 0321910419
ISBN 13: 978-0-32191-041-7

Chapter 6 - Electronic Structure of Atoms - Additional Exercises: 6.85c

Answer

Photons of UV-B radiation are more energetic than photons of UV-A radiation.

Work Step by Step

According to the formula $$E=h\nu=h\frac{c}{\lambda}$$ we find that $E$ is inversely proportional with $\lambda$. That means the lower the wavelength of the light, the higher the energy of its photons, and vice versa. So, since the range of wavelength of UV-B radiation is lower than that of UV-A radiation, photons of UV-B radiation are more energetic than photons of UV-A radiation.
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