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How can light produce sound?

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rednewguy

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can light produce sound?
when the power is low, the tube lights produce a sound. what is the reason for that.
thanks
 

kalyanram

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Re: light - sound

Hi RNG,
1) If you are talking of light directly producing sound then it not possible without a transducing circuitry involved.
2) The sound that a tube light produces on low power is due to the choke thats made out of a induction coil. On low wattage you even observe the tube-light flicker this is due to the continuous rapid charging-discharging of the choke in order to keep the tube-light ON that makes it vibrate and produce sound. If the power falls futher low then the tube-light goes OFF.

~Kalyan.
 

    rednewguy

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