Indicate Which of the Following Sources Produces the Lowest Energy $\lambda$

question 111

Multiple Choice

Indicate which of the following sources produces the lowest energy photons.

• A) a radio station with v = 106.7 MHz
• B) a dentist's X-ray source with \(\lambda\) = 100 pm
• C) the laser in a CD player with \(\lambda\)= 650 nm
• D) a microwave oven with v = 6.0 * 10¹⁰ Hz
• E) your cell phone with v = 1.750 GHz

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