Electromagnetic Waves

What type of electromagnetic wave is primarily used for television and radio broadcasting?

• Microwaves

• Radio waves

• Infrared

• Ultraviolet

Which electromagnetic wave is used in satellite communications and cooking food?

• X-rays

• Gamma rays

• Microwaves

• Infrared

Which of the following electromagnetic waves has the shortest wavelength?

• Radio waves

• Visible light

• X-rays

• Gamma rays

Which type of electromagnetic wave is used in fibre optic communications?

• Ultraviolet

• Visible light

• Radio waves

• Gamma rays

Which electromagnetic wave is used for sterilising medical equipment?

• Infrared

• X-rays

• Gamma rays

• Microwaves

Which electromagnetic wave is used in energy-efficient lamps?

• Radio waves

• Microwaves

• Ultraviolet

• Infrared

What is the primary use of X-rays in practical applications?

• Cooking food

• Medical imaging and treatments

• Satellite communications

• Fibre optic communications

Which electromagnetic wave is used in sun tanning?

• Infrared

• Ultraviolet

• Visible light

• X-rays

What is the order of electromagnetic waves from long to short wavelength?

• Gamma rays, X-rays, ultraviolet, visible light, infrared, microwave, radio

• Radio, microwave, infrared, visible light, ultraviolet, X-rays, gamma rays

• Radio, infrared, microwave, visible light, ultraviolet, X-rays, gamma rays

• Gamma rays, ultraviolet, X-rays, visible light, infrared, microwave, radio

Which electromagnetic wave is used in infrared cameras?

• Radio waves

• Microwaves

• Infrared

• Ultraviolet