A point source of sound produces a noise of 70 dB at a distance of 20 m from it. What will be the noise level at 80 m from it ?

[A] 35 dB

[B] 64 dB

[C] 58 dB

[D] 52 dBy

Answer & Explanation
Answer: 58 dB

Article and Schedule Quiz	Start Test!

Take Mock Tests

Missiles Mock Test	Start Test!
SSC MTS Mock Test	Start Test
IBPS CLERK MOCK TEST	Start Test
SSC MTS 2022 JULY 26 Shift 1 (ENGLISH)	Start Test!
SSC GD Previous Year Paper 2021 Nov 17 Shift - I (Hindi)	Start Test!
SSC CGL Tier - 1 PYP 2022 April 21 Shift- 1 (ENGLISH)	Start Test!
MPSC PAPER I MOCK TEST 1 (ENGLISH)	Start Test!
IB Security Assistant Mock test 1 (english)	Start Test!
UP POLICE CONSTABLE MOCK TEST 1	Start Test!
DELHI POLICE CONSTABLE MOCK TEST 1 (HINDI)	Start Test!