Home
Class 11
CHEMISTRY
how fast is an electron moving if it has...

how fast is an electron moving if it has a wavelength equal to the distance travelled in one second ?

A

`sqrt(h//m)`

B

`sqrt(m//h)`

C

`sqrt(h//p)`

D

`sqrt(h//2(K.E.))`

Text Solution

Verified by Experts

The correct Answer is:
A
`lambda = v`
`lambda = (h)/(mv)`
`v^(2) = (h)/(m)`
`v = sqrt((h)/(m))`
Promotional Banner

Similar Questions

Explore conceptually related problems

If wavelength is equal to the distance travelled by the electron in one second then

If an electron has a wavelength, does it also have a colour?

A body starting from rest has an acceleration of 5m//s^(2) . Calculate the distance travelled by it in 4^(th) second.

In the given v-t graph the distance travelled by the body in 5 seconds will be

If the distance travelled by a freely falling body in the last second of its journey is equal to the distance travelled in the first 2s, the time of descent of the body is

A freely falling body traveled xm in n^(th) second distance travelled in n-1^(th) second is

A body starting from rest has an acceleration of 4ms^(-2) . Calculate distance travelled by it in 5th second.

A particle is moving 5 times as fast as an electron. The ratio of the de-Broglie wavelength of the particle to that of the electron is 1.878 xx10^(-4) . The mass of the particle is close to :

If body having initial velocity zero is moving with uniform acceleration 8m//sec^(2) the distance travelled by it in fifth second will be

Consider a particle intially moving with a velocity of 5 m s^(-1) starts decelerating at a constant rate of 2 m s^(-2) . a. Determine the time at which the particle becomes stationary. b. Find the distance travelled in the second second. c. Find the distance travelled in the third second.