# Physics Karachi Board XI [Sound] Online Test 2

## Physics XI Karachi Board [Sound] MCQS Online Test - 2

Physics Aptitude Test. 20 More Questions from Chapter 08-B Sound.
Q1. Notes played on piano and violin are distinguished because of their
Q2. Doppler’s effect cart be applied to
Q3. Sound produced by a closed end organ pipe contains
Q4. The discrepancy in the theoretical and experimental value of sound waves was explained by:
Q5. The velocity of sound is maximum in:
Q6. The speed of sound is minimum in:
Q7. Magnitude of auditory sensation produced by sound is known as:
Q8. The energy transmitted per second through a unit area by the sound waves is called
Q9. The loudness L is proportional to the logarithm of intensity I is called:
Q10. Unit for intensity of sound is:
Q11. One bel =
Q12. The loudness of sound depend upon:
Q13. The characteristic of sound by which a shrill sound can be distinguished from a grave one is known as:
Q14. We can distinguish between two sounds of same loudness and pitch due to:
Q15. The pitch of sound depends upon:
Q16. The pitch of women voice as compared to man is:
Q17. When two waves reinforce each other and the resulting sound is loudest then this sort of interference is called:
Q18. The periodic increase or decrease in the loudness of sound is called:
Q19. The number of beats per second of two forks is equal to the difference between their:
Q20. Beats can be heard when difference of frequency is not more than:
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