मराठी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान इयत्ता ११

X-ray Incident on a Material - Physics

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.

टीपा लिहा

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.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 22: X-rays - MCQ [पृष्ठ ३६५]

APPEARS IN

एचसी वर्मा Concepts of Physics Vol. 2 [English] Class 11 and 12
पाठ 22 X-rays
MCQ | Q 7 | पृष्ठ ३६५

संबंधित प्रश्‍न

To which part of electromagnetic spectrum does a wave of frequency 3 × 1013 Hz belong?


The small ozone layer on top of the stratosphere is crucial for human survival. Why?


The wavelengths for the light of red and blue colours are roughly 7.8 × `10^7` m and 4.8 × `10^7` m respectively.
(a) Which colour has the greater speed in vacuum?
(b) Which colour has the greater speed in glass?


What is the range of the wavelength of the following electromagnetic waves?

(a) Ultraviolet


What is the range of the wavelength of the following electromagnetic waves?

(a) Visible. 


Give one use of microwaves.


Is it possible that in a Coolidge tube characteristic Lα X-rays are emitted but not Kα X-rays?


Can Lα X-ray of one material have shorter wavelength than Kα X-ray of another?


X-ray from a Coolidge tube is incident on a thin aluminium foil. The intensity of the X-ray transmitted by the foil is found to be I0. The heating current is increased to increase the temperature of the filament. The intensity of the X-ray transmitted by the foil will be
(a) zero
(b) < I0
(c) I0
(d) > I0


The X-ray coming from a Coolidge tube has a cutoff wavelength of 80 pm. Find the kinetic energy of the electrons hitting the target.

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


Continuous X-rays are made to strike a tissue paper soaked with polluted water. The incoming X-rays excite the atoms of the sample by knocking out the electrons from the inner shells. Characteristic X-rays are analysed and the intensity is plotted against the wavelength. Assuming that only Kα intensities are detected, list the elements present in the sample from the plot. Use Moseley's equation v − (25 × 1014Hz)(Z − 1)2.

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


Gamma rays D C Visible light B A

The above table shows different parts of the electromagnetic spectrum.
(a)    Identify the parts of the spectrum marked as A, B, C and D.
(b)    Which of the radiations A or B has the higher frequency?
(c)    State two properties which are common to all parts of the electromagnetic spectrum.
(d)    Name one source of each of the radiation of electromagnetic spectrum.
(e)    Name one detector for each of the radiation.
(f)    Name one use of each of the radiation.


Name the part of the electromagnetic spectrum which is: 
Produced by bombarding a metal target with high electrons.


What is the wavelength of the wave whose frequency is 1012 Hz? Name the electromagnetic wave.


Answer briefly.

Why light waves travel in a vacuum whereas sound waves cannot?


Microwaves are electromagnetic waves with frequency in the range of.


Given below in the left column are different modes of communication using the kinds of waves given in the right column. 

A.  Optical Fibre
Communication
P. Ultrasound
B. Radar Q. Infrared Light
C. Sonar R. Microwaves
D. Mobile Phones  S. Radio Waves

From the options given below, find the most appropriate match between entries in the left and the right column.


Which is the correct ascending order of wavelengths?


Which one of the following electromagnetic radiation has the least wavelength?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×