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Improvement in Food Resources Class 9 Science MCQ

Update on: 27 Jul 2023, 05:51 PM

Improvement in Food Resources Class 9 Science MCQ

You can find multiple-choice questions (MCQs) for Class 9 Science Chapter 12 Improvement in Food Resources with answers below. These MCQs are specifically designed for students studying in Class 9 and follow the CBSE board curriculum. They align with the latest syllabus provided for Class 9 science. By attempting these MCQs, students can efficiently revise the concepts discussed in the chapter and effectively prepare for their Class 9 Annual examinations.

Previously –ย ย Sound Class 9 Science MCQ

Check Science Chapterwise Class 9 – Class 9 Science MCQ with Answers

Sound Class 9 Science MCQ

Q.1. Sound waves are classified as:
a) Transverse waves
b) Longitudinal waves
c) Electromagnetic waves
d) None of the above

Answer
(b) Longitudinal waves

Q.2.ย  Which of the following is not a method of sound production?
a) Vibrations of vocal cords
b) Striking a tuning fork
c) Plucking a guitar string
d) Refracting light

Answer
(d) Refracting light

Updated Class 9 syllabus –ย CBSE Syllabus for Class 9 (2023-24)

Q.3. The transmission of sound through a medium is called:
a) Production of sound
b) Propagation of sound
c) Reflection of sound
d) Range of hearing

Answer
(b) Propagation of sound

Q. 4. The speed of sound is highest in which of the following mediums?
a) Air
b) Water
c) Solid
d) Vacuum

Answer
(c) Solid

Q.5. Which of the following best describes a sound wave?
a) Transverse motion of particles
b) Oscillation of electromagnetic fields
c) Longitudinal motion of particles
d) Movement of light particles

Answer
(c) Longitudinal motion of particles

In case you don’t know –ย Class 9 Deleted Syllabus 2023-24

Q.6. When a sound wave strikes a hard surface and bounces back, it is called:
a) Refraction
b) Absorption
c) Reflection
d) Diffraction

Answer
(c) Reflection

Q.7. What happens when you shout in a canyon and hear your own voice come back to you?
a) Reflection of sound
b) Echo
c) Reverberation
d) Range of hearing

Answer
(b) Echo

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Q.8. The persistence of sound after the original sound has stopped is called:
a) Echo
b) Reverberation
c) Reflection
d) Propagation

Answer
(b) Reverberation

Q.9. Multiple reflections of sound are used in:
a) Radar systems
b) Sonar systems
c) Ultrasound imaging
d) All of the above

Answer
(d) All of the above

Q. 10. The range of frequencies that can be heard by a human ear is approximately:
a) 1 Hz to 100 Hz
b) 100 Hz to 1000 Hz
c) 20 Hz to 20,000 Hz
d) 20 Hz to 200 Hz

Answer
(c) 20 Hz to 20,000 Hz
We hope that the provided CBSE Class 9 Science MCQs Chapter 12 Improvement in Food Resources will be helpful for students studying in Class 9.ย  If you want answers to NCERT Questions, MTGs NCERT Text Book+Exemplar Problems-Solutions Science Class 9 is the solution. If you have any questions or concerns about the NCERT Class 9 Science MCQs Chapter 12 Improvement in Food Resources, please leave a comment below and we will respond as soon as possible. NCERT Text Book+Exemplar Problems-Solutions Science

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