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Class 9 Science Practice Test: Sound
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Class 9 Science Practice Test: Sound
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9 Questions

1. When we change feeble sound to loud sound we increase its
2. Sound travels in air if
3. When we change feeble sound to loud sound we increase its
4. Sound travels in air if
5. In the curve half the wavelength is
MCQ Questions for Class 9 Science Chapter 12 Sound with Answers
6. A key of a mechanical piano struck gently and then struck again but mush harder this time. In the second case
7. Before playing the orchestra in a musical concert, a sitarist tries to adjust the tension and pluck the string suitably. By doing so, he is adjusting
8. In the curve half the wavelength is
MCQ Questions for Class 9 Science Chapter 12 Sound with Answers
9. Infrasound can be heard by

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