Advertisements
Advertisements
Question
Name the scientist who discovered radio waves
Advertisements
Solution
Marconi
APPEARS IN
RELATED QUESTIONS
Arrange the following radiations in the order of their increasing wavelength:
X-rays, infrared rays, ratio waves, gamma ray and microwaves.
What is the range of the wavelength of the following electromagnetic waves?
(A) Radio waves.
State the approximate range of wavelength associated with infrared rays.
X-ray incident on a material
(a) exerts a force on it
(b) transfers energy to it
(c) transfers momentum to it
(d) transfers impulse to it.
Name the scientist who discovered Infra-red waves
State two uses of infrared radiations.
Answer briefly.
Can we produce a pure electric or magnetic wave in space? Why?
What are the ultraviolet rays?
Answer briefly.
Give two uses of radio waves.
Electromagnetic waves with wavelength
- λ1 is used in satellite communication.
- λ2 is used to kill germs in water purifies.
- λ3 is used to detect leakage of oil in underground pipelines.
- λ4 is used to improve visibility in runways during fog and mist conditions.
- Identify and name the part of electromagnetic spectrum to which these radiations belong.
- Arrange these wavelengths in ascending order of their magnitude.
- Write one more application of each.
