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प्रश्न
The X-ray beam emerging from an X-ray tube
विकल्प
is monochromatic
has all wavelengths smaller than a certain maximum wavelength
has all wavelengths greater than a certain minimum wavelength
has all wavelengths lying between a minimum and a maximum wavelength
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उत्तर
has all wavelengths greater than a certain minimum wavelength
The X-ray beam emerging from an X-ray tube consists of wavelengths greater than a certain minimum wavelength called cutoff wavelength.
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संबंधित प्रश्न
Identify the part of the electromagnetic spectrum which is:
produced by bombarding a metal target by high speed electrons.
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?
What is the range of the wavelength of the following electromagnetic waves?
(a) Visible.
State the approximate range of wavelength associated with visible light.
Name the radiations of wavelength just shorter than 4 × 10-7 m.
Name the rays or waves of highest frequency .
Name the waves produced by the changes in the nucleus of an atom.
Name the waves of wavelength nearly 0.1 nm.
Name two sources, each of infrared radiations and ultraviolet radiations.
X-ray and visible light travel at the same speed in vacuum. Do they travel at the same speed in glass?
The wavelengths of Kα and Lα X-rays of a material are 21.3 pm and 141 pm respectively. Find the wavelength of Kβ X-ray of the material.
(Use Planck constant h = 6.63 × 10-34 Js= 4.14 × 10-15 eVs, speed of light c = 3 × 108 m/s.)
Calculate the shortest wavelength of electromagnetic radiation present in Balmer series of hydrogen spectrum.
Give one use of electromagnetic radiations in Infrared radiation.
What is time period of the light for which the eye is most sensitive?
Electromagnetic waves with wavelength
- λ1 is used in satellite communication.
- λ2 is used to kill germs in water purifies.
- λ3 is used to detect leakage of oil in underground pipelines.
- λ4 is used to improve visibility in runways during fog and mist conditions.
- Identify and name the part of electromagnetic spectrum to which these radiations belong.
- Arrange these wavelengths in ascending order of their magnitude.
- Write one more application of each.
Identify the part of the electromagnetic spectrum which:
- produces the heating effect.
- is absorbed by the ozone layer in the atmosphere.
- is used for studying crystal structure.
Write any one method of the production of each of the above radiations.
Name the electromagnetic radiation whose frequency is 10 Hz.
