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 .

a pan containing water is placed in a positio n where it is exposed to a 10 mile per hour wind. the pan contains a uniform depth of 1.27 cm of water, is quite wide, and has a length of 2.44 m in the wind direction. the water in the pan is at a constant temperature of 15.5 °c.