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In a city, the noise levels represented by the equivalent sound pressure level over an 8-hour…

Paper 1 · People, Development & Environment UGC NET October 2020 Political Science
किसी शहर में 8 घंटे की अवधि में समतुल्य ध्वनि दाब स्तर के रूप में शोर स्तर 80 dB(A) बताया गया। यहाँ 'A' किसका सूचक है?
AA type of amplifier used in the measurement
BA type of microphone used in the measurement
CThe measurements of day time
DA type of weighting used in the measurement ✓ Correct
Answer: D
Explanation. dB(A) में 'A', A-भारण (A-weighting) को दर्शाता है, जो मानव कान की संवेदनशीलता के अनुसार ध्वनि मापन समायोजित करता है। अतः विकल्प D।

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