Physics F4 5.7

Which of the following characteristics of microwave makes it suitable to be used in satellite communication?

• It is neutral
• It has a high frequency
• It has a long wavelength
• It needs a medium to propagate

Which is not a property of an electromagnetic wave?

• It is a tranverse wave
• It is a longitudinal wave
• It can travel through vacuum
• It can travel through air

What is the waves represented by P and Q?

• P = UV rays , Q = Microwave
• P = Gamma rays, Q = Infrared ray
• P = Microwave, Q = Gamma rays
• P = UV rays, Q= Gamma rays

Which is the correct arrangement of electromagnetic waves in order of increasing frequency?

• Ultraviolet rays, gamma rays, microwaves, infrared rays
• Microwaves, infrared rays, ultraviolet rays, gamma rays
• Gamma rays, ultraviolet rays, infrared rays, microwaves
• Infrared rays, microwaves, gamma rays, ultraviolet rays

Which of the following cannot travel through vacuum?

• Microwave
• Radio wave
• Sound Wave
• X-rays

Which of the following electromagnetic waves has the lowest frequency?

• X-rays
• Blue light
• Sound Wave
• Microwave

What are the waves P, Q, R and S?

• A
• B
• C
• D

In the electromagnetic wave spectrum, gamma rays have the highest _______

• frequency

• wavelength

• speed

• density

In the electromagnetic wave spectrum, radiowaves have the highest _______

• wavelength

• frequency

• speed

• density

A sound with a range lesser than 20 Hz is called

• Infrasonic

• Ultrasonic

• human sound

• audio