Question

wavelength of electron whose speed is 1% less than the speed of light

Answer 1

Answer:

pls mark brainliest

λ = h/mc

In your problem, velocity = c/100 ( since the velocity is 1 %)

Sub c=c/100 in above equation, You will get λ = 100 h/mc

Sub values of h,m and c. Arrange the powers of 10. The answer will be 2.42 x 10-10.

So, Your answer will be (b) 2042 x 10-10. Hope you understand.