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An X-ray Beam Can Be Deflected

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प्रश्न

An X-ray beam can be deflected

विकल्प

  • by an electric field

  • by a magnetic field

  • by an electric field as well as a magnetic field

  • neither by an electric field nor a magnetic field

MCQ
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उत्तर

neither by an electric field nor a magnetic field

Since X-rays do not have any charged particles, they are not deflected by an electric field or a magnetic field.

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  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 44: X-rays - MCQ [पृष्ठ ३९३]

APPEARS IN

एचसी वर्मा Concepts of Physics Volume 1 and 2 [English]
अध्याय 44 X-rays
MCQ | Q 1 | पृष्ठ ३९३

संबंधित प्रश्न

Arrange the following radiations in the order of their increasing wavelength:

X-rays, infrared rays, ratio waves, gamma ray and microwaves.


State the approximate range of wavelength associated with visible light.


Which part of electromagnetic spectrum is used in radar systems?


The X-ray beam emerging from an X-ray tube


Consider a photon of continuous X-ray and a photon of characteristic X-ray of the same wavelength. Which of the following is/are different for the two photons?


The Kα and Kβ X-rays of molybdenum have wavelengths 0.71 A and 0.63 A respectively. Find the wavelength of Lα X-ray of molybdenum.

(Use Planck constant h = 6.63 × 10-34 Js= 4.14 × 10-15 eVs, speed of light c = 3 × 108 m/s.)


A free atom of iron emits Kα X-rays of energy 6.4 keV. Calculate the recoil kinetic energy of the atom. Mass of an iron atom = 9.3 × 10−26 kg.

(Use Planck constant h = 6.63 × 10-34 Js= 4.14 × 10-15 eVs, speed of light c = 3 × 108 m/s.)


The stopping potential in a photoelectric experiment is linearly related to the inverse of the wavelength (1/λ) of the light falling on the cathode. The potential difference applied across an X-ray tube is linearly related to the inverse of the cutoff wavelength (1/λ) of the X-ray emitted. Show that the slopes of the lines in the two cases are equal and find its value.

(Use Planck constant h = 6.63 × 10-34 Js= 4.14 × 10-15 eVs, speed of light c = 3 × 108 m/s.)


Name the scientist who discovered
 X-rays


Name the scientist who discovered Ultraviolet rays


Arrange the following electromagnetic waves in increasing order of their frequencies (i.e. begin with the lowest frequency):
Visible light, y rays, X rays, microwaves, radio waves, infrared radiations, and ultraviolet radiation.


State two properties of infrared radiations which differ from visible light.


What is time period of the light for which the eye is most sensitive?


Why does microwave oven heats up a food item containing water molecules most efficiently?


Electromagnetic waves with wavelength

  1. λ1 is used in satellite communication.
  2. λ2 is used to kill germs in water purifies.
  3. λ3 is used to detect leakage of oil in underground pipelines.
  4. λ4 is used to improve visibility in runways during fog and mist conditions.
  1. Identify and name the part of electromagnetic spectrum to which these radiations belong.
  2. Arrange these wavelengths in ascending order of their magnitude.
  3. Write one more application of each.

What is called the invisible spectrum?


In \[c = \nu\lambda\], what do \[c\], \[\nu\], and \[\lambda\] represent?


Which radiation has the longest wavelength and lowest frequency in the electromagnetic spectrum?


Which set lists uses of ultraviolet rays?


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