Question

calculate calculate the wavelength associated with an electron. whose mass is 9.1 X 10 ^-31 kg moving with a velocity of 1 km s^-1.??​

Answer 1

Answer:

7.27 x 10 ^ -7 m.

Explanation:

Mass(m) = 9.1 x 10 ^ -31..

velocity (v) = 1km/sec. = 1000 m/s

Plank's constant (h)= 6.625 x 10 ^ -34 j sec...

wavelength = h/mv

= 6.625 x 10 ^ -34 / 9.1 x 10 ^ -32 x 1000

= 0.727 x 10^ -34+31-3 m.

= 7.27 x 10 ^ -7 m.