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प्रश्न
An electromagnetic wave has a frequency of 500 MHz and a wavelength of 60 cm.name the medium through which it is travelling
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उत्तर
Electromagnetic wave is travelling through air.
संबंधित प्रश्न
To which part of electromagnetic spectrum does a wave of frequency 3 × 1013 Hz belong?
Give a reason for the following:
It is necessary to use satellites for long-distance TV transmission. Why?
Name the radiations of wavelength just longer than 8 × 10-7m.
Characteristic X-rays may be used to identify the element from which they are being emitted. Can continuous X-rays be used for this purpose?
Can Lα X-ray of one material have shorter wavelength than Kα X-ray of another?
What potential difference should be applied across an X-ray tube to get X-ray of wavelength not less than 0.10 nm? What is the maximum energy of a photon of this X-ray in joule?
(Use Planck constant h = 6.63 × 10-34 Js= 4.14 × 10-15 eVs, speed of light c = 3 × 108 m/s.)
Name the radiations used for the detection of fracture in bones.
What is the speed of radio waves in vacuum?
Which set consists of applications of infrared radiation?
Which properties characterize X-rays?
