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In an X-ray tube , electrons bombarding ...

In an X-ray tube , electrons bombarding the anode produce X-rays of wavelength 1 Å . The energy of an electron , when it hits the anode is

A

`19.8 xx 10^(-16) J`

B

`16.3 xx 10^(-16) J`

C

`13.7 xx 10^(-16)` J

D

`9.8 xx 10^(-16)` J

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • In an X-ray tube if the electrons are accelerated through 140KV then anode current obtained is 30mA. If the whole energy of electrons is converted into heat then the rate of production of heat at anode will be

    A
    968 calorie
    B
    892 calorie
    C
    1000 calorie
    D
    286 calorie

  • If 10000 V is applied across an X-ray tube, what will be the ratio of de-Broglie wavelength of the incident electrons to the shortest wavelength X-ray produced? ((e)/(m)"for electron"=1.8xx10^(11)Ckg^(-1))

    A
    `0.1`
    B
    `0.2`
    C
    `0.3`
    D
    `1.0`

  • STATEMENT - 1 If the accelerating potential in an X - rays tube is increased, the wavelength of the characteristic X- rays do not change . STATEMENT -2 When an electron beam strikes the target in an X- rays tube, part of the kinectic energy is converted into X - rays energy .

    A
    Statement - 1 is true , Statement -2 is true Statement -2 is a correct explanation for Statement - 1
    B
    Statement - 1 is true , Statement -2 is true Statement -2 is a NOT a correct explanation for Statement - 1
    C
    Statement - 1 is true , Statement -2 is false
    D
    Statement - 1 is false , Statement -2 is true

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    The de-Broglie wavelength of electrons striking the cathode to produce X-rays is equal to (1)/(100) of minimum wavelength of X-ray produced. What is the voltage (in volt) across X-ray tube?

    In X-ray coolidge tube 25 keV energy of electron strike from the anode due to this the wavelength of first line of series K is obtained 0.5 Å. If applied potential is increased by 50%. (1) What is the value of wavelength of first line of K–series. (2) Minimum value of wavelength.

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