NEET Physics Chapter 5 Sound Multiple Choice Questions

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NEET Physics Chapter 5 Sound Multiple Choice Questions

Question 1. A note is a sound

  1. Of a mixture of several frequencies
  2. Of a mixture of two frequencies only
  3. Of a single-frequency
  4. Always unpleasant to listen

Answer. 3. of a single frequency

Question 2. A key of a mechanical piano struck gently and then struck again but much harder this time. In the second case

  1. The sound will be louder but the pitch will not be different
  2. The sound will be louder and the pitch will also be higher
  3. The sound will be louder but the pitch will be lower
  4. Both loudness and pitch will remain unaffected

Answer. 1. The sound will be louder but the pitch will not be different

NEET Physics Chapter 5 Sound mcqs

Question 3. In SONAR, we use

  1. Ultrasonic waves
  2. Infrasonic waves
  3. Radio waves
  4. Audible sound waves

Answer. 1. ultrasonic waves

Question 4. Sound travels in the air if

  1. articles of medium travel from one place to another
  2. There is no moisture in the atmosphere
  3. Disturbance moves
  4. Both particles as well as disturbance travel from one place to another.

Answer. 3. Disturbance moves

Question 5. When we change feeble sound to loud sound we increase its

  1. Frequency
  2. Amplitude
  3. Velocity
  4. Wavelength

Answer. 2. amplitude

Question 6. In the curve half the wavelength is

NEET Physics Chapter 5 Sound Curve Half The Wavelength

  1. A B
  2. B D
  3. D E
  4. A E

Answer. 2. B D

Question 7. Earthquake produces which kind of sound before the main shock wave begins

  1. Ultrasound
  2. Infrasound
  3. Audible sound
  4. None of the above

Answer. 2. infrasound

Question 8. Infrasound can be heard by

  1. Dog
  2. Bat
  3. Rhinoceros
  4. Human beings

Answer. 3. Rhinoceros

Question 9. 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.

  1. Intensity of sound only
  2. Amplitude of sound only
  3. The frequency of the sitar string with the frequency of other musical instruments
  4. Loudness of sound

Answer. 3. frequency of the sitar string with the frequency of other musical instruments

Question 10. The vibrating part of a guitar is

  1. Hand
  2. Fulcrum
  3. String
  4. Chords

Answer. 3. String

Question 11. The simplest part of the ear is

  1. Inner ear
  2. Middle ear
  3. Outer ear
  4. Cerebellum

Answer. 3. Outer ear

Chapter 5 Sound NEET MCQ Practice PDF Download

Question 12. Heinrich Rudolf Hertz was born on 22 February 1857 in Germany. He was a German physicist. He was the first person who prove the existence of electromagnetic waves through his experiments. He laid the foundation for the future development of radio, telephone, telegraph, and television.

He also discovered the photoelectric effect when he noticed that the charged object loses its charge quickly when illuminated by ultraviolet radiation. It was later explained by Albert Einstein.

He also started experimenting with cathode rays. He discovered that cathode rays can penetrate in thin\ metal foil. He developed a version of a cathode tube and worked on X-rays of ­different materials. But he never practically worked on actual 0020X rays.

The S.I. unit of frequency was named Hertz in his honor.

1. What is the S.I. unit of frequency?

  1. Hertz
  2. Metre
  3. Second
  4. m/s

Answer. 1. Hertz

2. When was Hertz born?

  1. 15 March, 1857
  2. 22 February, 1857
  3. 22 February, 1859
  4. 19 November, 1882

Answer. 2. 22 February, 1857

3. In which city was Hertz born?

  1. London
  2. Germany
  3. Indonesia
  4. America

Answer. 2. Germany

4. Hertz was the first person to introduce ______.

  1. Electromagnetic waves
  2. Magnetic waves
  3. Electricity
  4. Gas

Answer. 1. Electromagnetic waves

5. What was the full name of Hertz?

  1. Henry Hertz
  2. Rudolf Hertz
  3. Heinrich Hertz
  4. Heinrich Rudolf Hertz

Answer. 4. Heinrich Rudolf Hertz

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