Advertisements
Advertisements
प्रश्न
Name the scientist who discovered radio waves
Advertisements
उत्तर
Marconi
APPEARS IN
संबंधित प्रश्न
Name the subjective property of light related to its wavelength.
Which radiation is used for satellite communication?
State the approximate range of wavelength associated with visible light.
Give one use of microwaves.
Name three properties of ultraviolet radiations which are similar to visible light.
An electromagnetic wave has a frequency of 500 MHz and a wavelength of 60 cm.name the medium through which it is travelling
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 |
Solve the numerical problem.
Calculate the frequency in MHz of a radio wave of wavelength 250 m. Remember that the speed of all EM waves in a vacuum is 3.0 × 108 m/s.
Write two uses of the following radiation.
X-rays
