0

Guest

Courses New

Find the frequency of 1 Mev photon. Given wavelength of a 1 Kev photon is 1.24*10 -9 ? Pls ans asap

Find the frequency of 1 Mev photon. Given wavelength of a 1 Kev photon is 1.24*10-9 ?
 
Pls ans asap

Grade:12th pass

1 Answers

Arun
25750 Points
5 years ago
Energy E = hν = hc/λ = 1 keV  -----------(1)
Wavelength λ = 1.24 x 10-9 m  -----------(2)
From (1) and (2), we get
hc = λ x 1 keV = 1.24 x 10-9 m x 1 keV = 1.24 x 10-9 m. 103 eV = 1.24 x 10-6 eV.m

If E = hc/λ = 1 MeV
  1/λ = E/hc = 1 x 106 eV/(1.24 x 10-6 eV.m)
                  = 0.81 x 1012/m
Frequency ν = c/λ = (3 x 108 m/s) x 0.81 x 1012/m
                                = 2.43x 1020/s
                                 = 2.43 x 1020 Hz.

Think You Can Provide A Better Answer ?

Other Related Questions on Modern Physics

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More