Advertisements
Advertisements
प्रश्न
Name the radiation which can be detected by thermopile.
Advertisements
उत्तर
Infrared radiation
APPEARS IN
संबंधित प्रश्न
How are infrared waves produced?
To which part of electromagnetic spectrum does a wave of frequency 3 × 1013 Hz belong?
To which part of the electromagnetic spectrum does a wave of frequency 5 × 1019 Hz belong?
State Moseley's law
Which radiation is used for satellite communication?
Why is exposure to X-rays injurious to health but not exposure to visible light, when both are electromagnetic waves?
Visible light passing through a circular hole forms a diffraction disc of radius 0.1 mm on a screen. If an X-ray is passed through the same setup, the radius of the diffraction disc will be
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 three radiations and their wavelength range which are invisible and beyond the violet end of the visible spectrum.
Answer briefly.
What are radio waves?
