MENU
Question -

Find the

(a) maximum frequency,and

(b) minimum wavelength of X-rays produced by 30 kVelectrons.



Answer -

Potential of the electrons, V =30 kV = 3 × 104 V

Hence, energy of the electrons, =3 × 104 eV

Where,

e = Charge on an electron = 1.6 × 10−19 C

(a)Maximum frequency producedby the X-rays = ν

The energy of theelectrons is given by the relation:

Where,

h =Planck’s constant = 6.626 × 10−34 Js

Hence, the maximum frequency of X-rays producedis

(b)The minimum wavelengthproduced by the X-rays is given as:

Hence,the minimum wavelength of X-rays produced is 0.0414 nm.

Comment(S)

Show all Coment

Leave a Comment

Free - Previous Years Question Papers
Any questions? Ask us!
×