1. what is the frequency in hertz of a photon that has a wavelength of 5.78 x 104 m? 2. calculate the wavelength of a wave that has a frequency of 22.4 mhz. 3. what is the frequency in hertz of a photon that has a wavelength of 67.9 m? 4. calculate the wavelength of a wave that has a frequency of 34.66 hz. 5. what is the frequency in hertz of a photon that has a wavelength of 9.98 mm?

Answer :

Solution For 1 :

Given,

wavelength =

Speed of light =

Formula used :

          .............(1)

= frequency

= wavelength

c = speed of light

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

=  

(1Hz = 1 per second)

Therefore, the frequency of a photon in hertz is .

Solution For 2 :

Given,

Frequency =      

Speed of light =

Now put all the given values in above formula (1), we get

Therefore, the wavelength of a wave is 13.38 m.

Solution For 3 :

Given,

wavelength =

Speed of light =

Now put all the given values in above formula (1), we get

=

Therefore, the frequency of a photon in hertz is .

Solution For 4 :

Given,

Frequency =

Speed of light =

Now put all the given values in above formula (1), we get

Therefore, the wavelength of a wave is .

Solution For 5 :

Given,

wavelength =      (1 m  = 1000 mm)

Speed of light =

Now put all the given values in above formula (1), we get

=

Therefore, the frequency of a photon in hertz is .

the cold front replaces the warmer air at the ground level changing the wind to be breezy and denser.there is also an immediate drop in the temperature.

atomic mass = 39

number of neutrons = 20

number of protons= 19

electronic configuration = 1s2 2s2 2p6 3s2 3p6 4s1

the number of electron in first shell = 2

number of electrons in n=3 shell = 8