In electron microscope 25 kV voltage is used to accelerate electron .By changing voltage to 100 kV de-Broglie wavelength becomes..

In electron microscope 25 kV voltage is used to accelerate electron .B

1.	In electron microscope 25 kV voltage is used to accelerate electron .By changing voltage to 100 kV de-Broglie wavelength becomes..
Answer» INCREASES by two times decrease by two times decreases by FOUR times increase by 4 times Solution :`lambda PROP (1)/(SQRT(V))` `IMPLIES(lambda_(1))/(lambda_(2))=sqrt((V_(2))/(V_(1)))=sqrt((100kV)/(25kV))=2` `implieslambda_(2)=(lambda_(1))/(2)`

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In electron microscope 25 kV voltage is used to accelerate electron .By changing voltage to 100 kV de-Broglie wavelength becomes..

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