UV-rays from sunlight may cause sunburn.However,infrared lamps are good for relieving muscle pain.Which of the following is a correct statement about UV-rays?
A)UV-rays have more energy than visible rays.
B)UV-rays have less energy than infrared rays.
C)UV-rays have lower frequency than infrared rays.
D)UV-rays have longer wavelength than visible rays.

Question

Quizplus · Accepted Answer

UV-rays have a higher energy than visible rays.

Note: B cannot be the correct answer as it is the opposite of the correct statement. C and D are both incorrect as the frequency of UV-rays is higher than infrared rays and the wavelength of UV-rays is shorter than visible rays.

UV-Rays from Sunlight May Cause Sunburn