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_________ is the most common and convenient source of light.

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in Biomedical Instrumentation by (76.6k points)
_________ is the most common and convenient source of light.

(a) Neon-xenon arc

(b) Xenon-mercury arc

(c) Tungsten lamp

(d) Hydrogen discharge lamp

This question was addressed to me in an international level competition.

The question is from Multi-Channel Wireless Telemetry System in chapter Biomedical Telemetry of Biomedical Instrumentation

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Correct choice is (c) Tungsten lamp

To explain I would say: The most common and convenient source of light is the tungsten lamp. This lamp consists of a tungsten filament enclosed in a glass envelope. It is cheap, intense and reliable. A major portion of the energy emitted by a tungsten lamp is in the visible region and only about 15 to 20% is in the infrared region.

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