Which of the following wave does not travel in vacuum?

• X-ray

• Sound waves

• Ultraviolet rays

• Microwaves

Which electromagnetic waves is not harmful to human beings?

• Gamma ray

• X-ray

• Microwaves

• Visible light

Tags

NGSS.HS-PS4-4

Electromagnetic waves are

• transverse waves

• longitudinal waves

Tags

NGSS.HS-PS4-3

Electromagnetic waves are made up of an electric field and a magnetic field that oscillate (?) to one another

• parallelly

• perpendicularly

Electromagnetic waves show phenomena of reflection, refraction, diffraction and interference under suitable conditions.

• Yes

• No

Which of the following electromagnetic wave has the greatest wavelength?

• Infrared ray

• Ultraviolet ray

• Radio wave

• Microwave

Tags

NGSS.HS-PS4-1

Which of the following electromagnetic wave has the smallest frequency?

• Visible light

• Ultraviolet ray

• X-ray

• Gamma-ray

Tags

NGSS.HS-PS4-1

Arrange the electromagnetic waves in order of increasing frequency

• Ultraviolet rays, infrared rays, microwaves, gamma rays

• Microwaves, infrared rays, ultraviolet rays, gamma rays

• Infrared rays, microwaves, ultraviolet rays, gamma rays

• Microwaves, gamma rays, infrared rays, ultraviolet rays

Tags

NGSS.HS-PS4-1

What type of electromagnetic waves is used in the airport to check on the luggage?

• Gamma ray

• X-ray

• Infrared ray

• Radio wave

Tags

NGSS.HS-PS4-4

Which of the following statement about electromagnetic waves is correct?

• They are longitudinal waves

• The velocity of the waves is affected by the frequency

• They cannot propagate through vacuum

• They do not need medium for propagation

Tags

NGSS.HS-PS4-1