Calculate the wavelength of the light emitted when an electron in a one-dimensional box of length 5.4 nmnm makes a transition from the n=9n=9 state to the n=8n=8 state.

Answer : The wavelength of the light emitted is,

Explanation :

The energy level of quantum particle in a one-dimensional box is given as:

or,

where,

= change in energy

n = energy level

h = Planck's constant =

m = mass of electron =

L = length of a one-dimensional box =

Now put all the given values in the above formula, we get:

Now we have to calculate the wavelength of the light emitted.

where,

h = Planck's constant =

c = speed of light =

= wavelength of the light

Now put all the given values in the above formula, we get:

Thus, the wavelength of the light emitted is,

conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.

fe 55.85 g/mol and h2o 18.02 g/mol.