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# Light, Frequency, Voltage and Current

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1. Which is a correct statement?

A. Visible light has a frequency of 10 to the power of 14 Hz.

B. Gamma rays have a frequency of 60 Hz.

C. A microwave oven produces EMG of approximately 10 to the power of 9 Hz.

D. High voltage electric power lines produce EMF of 80 Hz.

2. An office worker wants to plug in a 3000 watt 110 Volt heater into a standard 15 amp, 110 V electrical outlet. Would this be safe?

A. No, the resistance can be hazardous and cause fire

B. No, the current required by the heater is approx. 27 amps which exceeds.

C. Yes, the voltage is too low.

D. Yes, the current required by the heater is only 7 amps, which can be handled.

##### Solution Summary

The expert gives frequencies of various types of light. An explanation of how to calculate current from power and voltage is provided.

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Questions
1. Which is a correct statement?

A. Visible light has a frequency of 10 to the power of 14 Hz.

B. Gamma rays have a frequency of 60 Hz.

C. A microwave oven produces EMG of approximately 10 to the power of 9 Hz.

D. High voltage electric power lines produce EMF of 80 Hz.

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