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  • Two electrons are moving with same speed. one electron enters a region of the uniform electric field while the other enters a

Two electrons are moving with same speed.\nu one electron enters a region of the uniform electric field while the other enters a region of the uniform magnetic field, after some time de Broglie wavelength of two are  \lambda _{1} and \lambda _{2}  respectively.
Now

Option: 1

\lambda _{1}=\lambda _{2}

 

 


Option: 2

\lambda _{1}>\lambda _{2}


Option: 3

\lambda _{1}<\lambda _{2}


Option: 4

\lambda _{1} can be greater than or less than \lambda _{2}


Answers (1)

best_answer

As we learned

 

De - Broglie wavelength (λ) -

\lambda\: \alpha \frac{1}{\nu }

- wherein

Particle moves faster, then wavelength will be smaller and vice versa

 

 

the speed of electron which enters into the electric field may be increased or decrease while for second electron it remains constant

\Rightarrow \lambda =\frac{h}{mv} \Rightarrow \lambda \alpha \frac{1}{\nu }

\lambda _{1}>\lambda _{2}   or  \lambda _{1}<\lambda _{2}

Posted by

Gautam harsolia

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