Hazards of Electromagnetic Radiation: Health Risks and Exposure

What is the relationship between wavelength and energy in electromagnetic waves?

• Wavelength and energy are unrelated

• Shorter wavelengths correspond to lower energy

• Longer wavelengths correspond to higher energy

• Shorter wavelengths correspond to higher energy

Which of the following is a common use of microwaves?

• Producing X-rays

• Transmitting visible light

• Generating ultraviolet light

• Heating food in microwave ovens

Why are microwaves from mobile phones not considered a cancer risk?

• They are a non-ionizing form of radiation

• They are too weak to penetrate the skin

• They are a form of ionizing radiation

• They are absorbed by the atmosphere

What is a common application of infrared radiation?

• Generating visible light

• Heating food in toasters

• Producing X-rays

• Sterilizing medical equipment

What is a potential health effect of excessive ultraviolet radiation exposure?

• Stronger bones

• Increased risk of skin cancer

• Improved vision

• Enhanced immune system

What type of radiation can cause DNA mutations?

• Microwaves

• Infrared radiation

• Ultraviolet light

• X-rays and gamma rays

How is radiation exposure risk measured?

• In lumens

• In sieverts

• In decibels

• In watts