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प्रश्न
Name the scientist who discovered
X-rays
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उत्तर
Roentgen
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संबंधित प्रश्न
What is the range of the wavelength of the following electromagnetic waves?
(a) Gamma rays.
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- Calculate the speed of the wave.
- Name the medium through which it is traveling.
State the name and the range of wavelength of the invisible electromagnetic waves beyond the red end of the visible spectrum.
Choose the correct option.
How does the frequency of a beam of ultraviolet light change when it travels from air into glass?
Answer briefly.
Does an ordinary electric lamp emit EM waves?
X-rays, gamma rays and microwaves travelling in a vacuum have ______.
The fundamental frequency of an open organ pipe is 300 Hz. The first overtone of this pipe has same frequency as first overtone of a closed organ pipe. If speed of sound is 330 m/s, then the length of closed organ pipe is:
Find the photon energy in units of ev for electromagnetic wave if waves length 40 m. Given h = 6.63 × 10–34 J.
Write two uses of the following radiation.
X-rays
Give any two uses of infrared waves.
