Sound – Physics 10th – Level 3

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Sound - Level 3

Chapter 2 - Physics Class 10th - Test Preparation MCQs

Chapter : Sound (Level 3)
Subject : Physics
Class : 10th
Board : Sindh Board
Total MCQs : 10
Extract From : 10th Class Note Book
Time : 5 Minutes (30 Seconds for Each Question)

  1. The S.I unit sound of intensity is:
  2. Over an eight-hour workday, the noise level recommended in most countries is usually:
  3. At a temperature of 20°C, the speed of sound is:
  4. For hearing clear echoes, the minimum distance of the obstruction from the source of sound should be:
  5. To hear g clear echo, the time interval between the produced original sounds and the reflected one must be at least:
  6. The sound with frequencies above the upper limit of the human range of audibility is known as:
  7. Generally, we classify ultrasound as those having frequencies above:
  8. Sound with frequencies below the lower limit of the human range of audibility is known as:
  9. It is extensively used in marine applications.
  10. If a wave completes 20 vibrations in 2.5s, then its frequency is:

1 / 10

1. Over an eight-hour workday, the noise level recommended in most countries is usually:

2 / 10

2. For hearing clear echoes, the minimum distance of the obstruction from the source of sound should be:

3 / 10

3. The sound with frequencies above the upper limit of the human range of audibility is known as:

4 / 10

4. If a wave completes 20 vibrations in 2.5s, then its frequency is:

5 / 10

5. Sound with frequencies below the lower limit of the human range of audibility is known as:

6 / 10

6. At a temperature of 20°C, the speed of sound is:

7 / 10

7. Generally, we classify ultrasound as those having frequencies above:

8 / 10

8. To hear g clear echo, the time interval between the produced original sounds and the reflected one must be at least:

9 / 10

9. The S.I unit sound of intensity is:

10 / 10

10. It is extensively used in marine applications.

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