ows hext to the words \"wavelength, frequency,\" and \"energy\" below, in the di

Question

ows hext to the words "wavelength, frequency," and "energy" below, in the diree- tion of increasing values. Wavelengtlh Frequency Energy The frequency of infrared radiation emitted by a human is typically 3 × 10 ) Hz. What is the wave 3. length of this radiation? (1 × 10-5 m) 4. What is the frequency of radio waves with a wavelength of 3.027 m? (991 x 10° Hz-99.1 MHz) 5. what is the energy of x-rays with a frequency of 2.99 x 1019 Hz? a, (1.98 x 10- J) b. What is the energy of microwaves with a frequency of 4.15 x 10 Hz? (2.75 × 102 Relate energy to frequency to explain why x-rays are more damaging to cells of the human body than microwaves are. (Hint: consider the answers to Sa and 5b.) c. Instructor's Initials Lab 6 79

Explanation / Answer

Ans 3 :

The speed of light = wavelength x frequency

speed = 3 x 108 m/s

So putting all the values we get :

3 x 108 = wavelength x 3 x 1013

wavelength = 1 x 10-5 m

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