Advertisements
Advertisements
प्रश्न
X-ray incident on a material
(a) exerts a force on it
(b) transfers energy to it
(c) transfers momentum to it
(d) transfers impulse to it.
Advertisements
उत्तर
(a) exerts a force on it
(b) transfers energy to it
(c) transfers momentum to it
(d) transfers impulse to it.
An X-ray exerts force on the material on which it is incident. For example, it can penetrate into metals. An X-ray also transfers energy, momentum and impulse to the material on which it incident. Therefore, all options are correct.
APPEARS IN
संबंधित प्रश्न
What role dose infra-red radiation play in physical therapy?
To which part of the electromagnetic spectrum does a wave of frequency 5 × 1011 Hz belong?
A wave has wavelength 50 Å.
- Name the wave.
- State its speed in vacuum.
- State its one use.
What is the range of the wavelength of the following electromagnetic waves?
(a) Micro waves .
Name the region beyond the violet end of the spectrum called.
What are ultraviolet radiations?
Can Lα X-ray of one material have shorter wavelength than Kα X-ray of another?
An X-ray beam can be deflected
For harder X-rays,
(a) the wavelength is higher
(b) the intensity is higher
(c) the frequency is higher
(d) the photon energy is higher.
The wavelength of Kα X-ray of tungsten is 21.3 pm. It takes 11.3 keV to knock out an electron from the L shell of a tungsten atom. What should be the minimum accelerating voltage across an X-ray tube having tungsten target which allows production of Kα X-ray?
(Use Planck constant h = 6.63 × 10-34 Js= 4.14 × 10-15 eVs, speed of light c = 3 × 108 m/s.)
An X-ray tube operates at 40 kV. Suppose the electron converts 70% of its energy into a photon at each collision. Find the lowest there wavelengths emitted from the tube. Neglect the energy imparted to the atom with which the electron collides.
(Use Planck constant h = 6.63 × 10-34 Js= 4.14 × 10-15 eVs, speed of light c = 3 × 108 m/s.)
Identify the part of the electromagnetic spectrum used in (i) radar and (ii) eye surgery. Write their frequency range.
Name the radiation of the electromagnetic spectrum which is used for the following:
For taking photographs of the sky during the night and foggy conditions . Give the frequency range
A radio can tune to any station in the 7.5 mHz to 12 MHz band. What is corresponding wave length band.
SONAR emits which of the following waves?
The ratio of contributions made by the electric field and magnetic field components to the intensity of an EM wave is ______.
Which is the correct ascending order of wavelengths?
Name two electromagnetic waves of wavelength smaller than that of violet light.
In \[c = \nu\lambda\], what do \[c\], \[\nu\], and \[\lambda\] represent?
Which electromagnetic radiation has the highest frequency and shortest wavelength?
