Calculate the energy in joules of microwave radiation of ...

[shofmannx20]

Calculate the energy in joules of microwave radiation of wavelength 12.7 centimeters. (E = h, h = 6.63  10-34 J.sec; speed of light = wavelength  , speed of light = 3.0  108 meters/sec.)
 
  A) 4.9  1019 J
  B) 7.3  10-19 J
  C) 3.6  10-18 J
  D) 1.6  10-24 J

Question 2

What is the wavelength (in meters) of radio waves that have a frequency of 89.9 MHz? (wavelength  frequency = speed of light; speed of light = 3.0  108 meters/sec.)
 
  A) 3.3 centimeters
  B) 2.7  1016 millimeters
  C) 0.30 meters
  D) 3.3 meters

[makaylafy]

Answer to Question 1

D

Answer to Question 2

D

[shofmannx20]

Gracias!

[Hdosisshsbshs]

Excellent