Question

Given $h=6.62\times {10}^{-34}$ Js, $m_e$ $=9.1\times {10}^{-31}$ kg, $c=3\times {10}^8$ m/s, the value of Compton wavelength is:

• A. 0.0121 $A^0$
• B. 0.0484 $A^0$
• C. 0.0242 $A^0$
• D. 0.0363 $A^0$

Answer 1

The correct option is C 0.0242 $A^0$

Compton wavelength $=\frac{h}{m_{e}c}$
$=\frac{6.62\times {10}^{-34}}{9.1\times {10}^{-31}\times 3\times {10}^8}$
$=0.242\times {10}^{-11}m$
$=0.0242\times {10}^{-10}m$
$=0.0242A^{\circ }$