Espectro Electromagnético

Which EM waves are have the highest energy & are the most dangerous?

• radio

• gamma rays

• infrared

• x-rays

Which type of electromagnetic wave has the longest wavelength?

• Gamma rays

• Visible light

• Radio waves

• Ultraviolet

What is the typical wavelength range for visible light in the electromagnetic spectrum?

• 400-700 nm

• 1-10 mm

• 10-400 nm

• 700-1000 nm

Which application of the electromagnetic spectrum involves using microwaves?

• MRI in medicine

• Radio astronomy

• Cooking food

• Ultraviolet photography

In astronomy, which type of electromagnetic radiation is primarily used to observe the heat emitted by objects in space?

• Visible light

• X-rays

• Infrared radiation

• Ultraviolet radiation

Which part of the electromagnetic spectrum is most commonly used for cellular phone communication?

• Gamma rays

• Radio waves

• Visible light

• X-rays

What is the principle behind MRI (Magnetic Resonance Imaging) in medicine?

• The absorption of visible light by tissues

• The reflection of radio waves by tissues

• The absorption of X-rays by tissues

• The resonance of atomic nuclei in a magnetic field

Which type of electromagnetic waves are primarily responsible for causing sunburns?

• Infrared radiation

• Ultraviolet radiation

• Gamma rays

• Visible light

In the context of the electromagnetic spectrum, what is the significance of the term "ionizing radiation"?

• Radiation that is capable of removing electrons from atoms or molecules, thereby ionizing them

• Radiation that is only found in the infrared part of the spectrum

• Radiation that is too weak to be detected by standard instruments

• Radiation that is used exclusively in the field of communication

Which of the following is NOT a use of ultraviolet (UV) radiation?

• Sterilizing medical equipment

• Promoting vitamin D synthesis in the skin

• Heating food in microwave ovens

• Detecting counterfeit money