question_answer

A particle having mass \[1.67\times {{10}^{-27}}\] kg moving at a speed v absorbs a photon of wavelength 122 nm and stops. The value of v is

A) \[3.25m{{s}^{-1}}\]

B) \[1.28m{{s}^{-1}}\]

C) \[0.82\text{ }m{{s}^{-1}}\]

D) \[0.33m{{s}^{-1}}\]