Advertisements
Advertisements
Question
Name one radiation having the wavelength longer than the wavelength of these radiations.
Advertisements
Solution
Visible or infrared or microwaves or radio waves.
APPEARS IN
RELATED QUESTIONS
What physical quantity is the same for X-rays of wavelength 10−10 m, red light of wavelength 6800 Å and radiowaves of wavelength 500 m?
Use the formula λm T= 0.29 cm K to obtain the characteristic temperature ranges for different parts of the electromagnetic spectrum. What do the numbers that you obtain tell you?
What is the range of the wavelength of the following electromagnetic waves?
(a) Ultraviolet
The Kβ X-rays from certain elements are given below. Draw a Moseley-type plot of √v versus Z for Kβ radiation.
| Element | Ne | P | Ca | Mn | Zn | Br |
| Energy (keV) | 0.858 | 2.14 | 4.02 | 6.51 | 9.57 | 13.3 |
Name the scientist who discovered radio waves
State three properties of infrared radiations similar to that of visible light.
Following QN ∴ 14, the radiation force on the roof will be
All components of the electromagnetic spectrum in a vacuum have the same ______
Electromagnetic waves of wavelengths λ1, λ2 and λ3 are used in a radar system, in water purifiers and in remote switches of TV, respectively.
- Identify the electromagnetic waves.
- Write one source for each of them.
What happens when an electron collides with a positron?
