Sound waves travel with a speed _ at 0°0C.
Correct answer: D. 330 m/s
- A. 340 m/s
- B. 350 m/s
- C. 310 m/s
- D. 330 m/s
Explanation
At 0°C (which is the freezing point of water), sound waves travel through air at a speed of approximately 330 meters per second (or about 1,087 feet per second). This speed can vary slightly depending on other factors like humidity, air pressure, and composition, but at 0°C in dry air, the speed of sound is roughly 330 m/s. This value has been experimentally proved by Laplace.
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A p-n junction forms when p-type and n-type semiconductor regions meet, creating a depletion layer, barrier potential and rectifying action. The work covers forward and reverse bias, junction current, diode characteristics, and how a diode converts alternating current into pulsating direct current through half-wave and full-wave rectification.
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