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This section includes 2 Mcqs, each offering curated multiple-choice questions to sharpen your Physics knowledge and support exam preparation. Choose a topic below to get started.
1. |
A boy clapped his hands near a cliff and heard the echo 3 s later. If the speed of the sound is 346 ms-1, then the distance of the cliff from the boy is |
A. | 345 m |
B. | 289 m |
C. | 519 m |
D. | 600 m |
Answer» D. 600 m | |
2. |
1 bel is equal to |
A. | 100 dB |
B. | 50dB |
C. | 10dB |
D. | 20dB |
Answer» D. 20dB | |