Chemistry, asked by nishayadavmothuka200, 1 month ago

In an electron microscope, electron are accelerated to great velocities. calculate the wavelength of an electron travelling with a velocity of 7.0 megameters per second. the mass of an electron is 9.1 ✖ 10 power -28 g​

Answers

Answered by aayushmokal12
0

Answer:

λ=  

mv

h

 

The concept of mass in this case should be the resistance to change in velocity of an object subjected to a certain force. According to special theory of relativity, for a given amount of force, the degree of resistance to increase in velocity of a matter increases as the original velocity approaches that of light. For the electron in this context, its velocity is quite high. So, mass at that velocity.

mv=  

(1−(  

c

v

)  

2

)

m  

o

 

m  

o

=rest mass of electron

=9.1×10  

−31

kg

=9.1×10  

−28

g

Answered by sanjaakash2008
1

Answer:

h x y velocity

Explanation:

λ=

mv

h

The concept of mass in this case should be the resistance to change in velocity of an object subjected to a certain force. According to special theory of relativity, for a given amount of force, the degree of resistance to increase in velocity of a matter increases as the original velocity approaches that of light. For the electron in this context, its velocity is quite high. So, mass at that velocity.

mv=

(1−(

c

v

)

2

)

m

o

m

o

=rest mass of electron

=9.1×10

−31

kg

=9.1×10

−28

g

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