Final answer:
Ultraviolet and infrared light are equally dangerous to the eyes, as both UV and infrared radiation can cause serious eye damage. UV radiation can lead to eye diseases like cataracts, while infrared radiation can cause heat damage. Protection from both types of light is essential for maintaining eye health.
Step-by-step explanation:
The correct answer to the student's question is 'b. Ultraviolet, infrared light are equally dangerous to the eyes.' Ultraviolet (UV) radiation and infrared radiation exist on opposite ends of the visible light spectrum but both pose risks to eye health. UV radiation has higher energy than visible light and can cause damage such as cataracts and eye cancers. Infrared radiation, while having lower energy, also poses a risk by causing heat damage to the eyes. It's important to protect eyes from both types of radiation.
The electromagnetic spectrum includes different types of radiation arranged according to their wavelength and frequency. From long to short wavelengths, the order includes radio, microwave, infrared, visible, ultraviolet, X-ray, and gamma radiation. Violet light indeed has a higher frequency and shorter wavelength than red light, meaning ultraviolet has an even shorter wavelength than violet light.
Part of the sun's radiation that is harmful to living tissues includes ultraviolet (UV) radiation, which can cause sunburn and increase the risk of skin cancer in humans.