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Grade: 11

                        

Calculate the wavelength of an electron moving with a velocity of 2.05×10^7ms-1

4 years ago

Answers : (1)

Umakant biswal
5359 Points
							
@ joana
i am telling which formula u have to use here , and rest of the calculation part u have to do . 
this question can be solved by the besic formula of de broglie wavelength for an electron 
which states that 
LAMBDA = h / rootover of 2mev 
here h is the planks constant 
the value of v is given as 2.05 * 10 ^ 7 
m is the mass of an electron 
e is the charge of an electron which is 1.6 * 10 ^ -19 . 
just put the value and get the answer , 
HOPE U CAN DO IT NOW 
IF NOT THEN LET ME KNOW 
ALL THE BEST ..
4 years ago
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