An electron confined on one-dimensional infinite potential well has an energy of 180ev. what its wavelength?

The wavelength is 91.5 pm ( 91.5 Pico meter).

Explanation:

The formula can be expressed below for electron’s energy,

Where,

p = momentum

m= mass of electron

We know, mass of electron =  

Energy of electron,

Therefore,

By substituting the known values in the equation, we get,

Taking square root, we get

We know,

Here, h – Planck constant =

So, the wavelength would be,

Adding  in both numerator and denominator we get the value as

Where, pm – Pico meter -

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2

when jerome paddle in flowing river towards east the net speed of jerome will increase

so the net speed of jerome will be given as

now the speed of paul will be same as it is given as he is running on the ground

so

so here we can say since the speed of jerome is more so he will win the race

now as we know the distance so the time difference is given as

so jerome will reach first and the time difference will be 203.55 s or 3.4 min