Tiwari Academy Discussion

Shiv Ahuja

Asked: October 28, 2020In: Class 9

Distinguish between loudness and intensity of sound.

NCERT Solutions for Class 9 Science Chapter 12 Important NCERT Questions Sound NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-166 Questions No-1

Aarohi Singh

Asked: October 28, 2020In: Class 9

In which of the three media, air, water or iron, does sound travel the fastest at a particular temperature?

NCERT Solutions for Class 9 Science Chapter 12 Important NCERT Questions Sound NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-166 Questions No-1

Aarohi Singh

Asked: October 28, 2020In: Class 9

An echo returned in 3 s. What is the distance of the reflecting surface from the source, given that the speed of sound is 342 m s–1?

NCERT Solutions for Class 9 Science Chapter 12 Important NCERT Questions Sound NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-168 Questions No-1

Aarohi Singh

Asked: October 28, 2020In: Class 9

Why are the ceilings of concert halls curved?

NCERT Solutions for Class 9 Science Chapter 12 Important NCERT Questions Sound NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-169 Questions No-1

Aarohi Singh

Asked: October 28, 2020In: Class 9

What is the audible range of the average human ear?

NCERT Solutions for Class 9 Science Chapter 12 Important NCERT Questions Sound NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-170 Questions No-1

Aarohi Singh

Asked: October 28, 2020In: Class 9

What is the range of frequencies associated with

NCERT Solutions for Class 9 Science Chapter 12 Important NCERT Questions Sound NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-170 Questions No-2 What is the range of frequencies associated with (a) Infrasound? (b) Ultrasound?

Aarohi Singh

Asked: October 28, 2020In: Class 9

A submarine emits a sonar pulse, which returns from an underwater cliff in 1.02 s. If the speed of sound in salt water is 1531 m/s, how far away is the cliff?

NCERT Solutions for Class 9 Science Chapter 12 Important NCERT Questions Sound NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-172 Questions No-1

Aarohi Singh

Asked: October 28, 2020In: Class 9

What is sound and how is it produced?

NCERT Solutions for Class 9 Science Chapter 12 Important NCERT Questions Sound NCERT Books for Session 2022-2023 CBSE Board and UP Board Exercises Questions Page No-174 Questions No-1

Aarohi Singh

Asked: October 28, 2020In: Class 9

Describe with the help of a diagram, how compressions and rarefactions are produced in air near a source of sound.

NCERT Solutions for Class 9 Science Chapter 12 Important NCERT Questions Sound NCERT Books for Session 2022-2023 CBSE Board and UP Board Exercises Questions Page No-174 Questions No-2

Arush Kumar

Asked: October 28, 2020In: Class 9

Cite an experiment to show that sound needs a material medium for its propagation.

NCERT Solutions for Class 9 Science Chapter 12 Important NCERT Questions Sound NCERT Books for Session 2022-2023 CBSE Board and UP Board Exercises Questions Page No-174 Questions No-3

Distinguish between loudness and intensity of sound.

In which of the three media, air, water or iron, does sound travel the fastest at a particular temperature?

An echo returned in 3 s. What is the distance of the reflecting surface from the source, given that the speed of sound is 342 m s–1?

Why are the ceilings of concert halls curved?

What is the audible range of the average human ear?

What is the range of frequencies associated with

A submarine emits a sonar pulse, which returns from an underwater cliff in 1.02 s. If the speed of sound in salt water is 1531 m/s, how far away is the cliff?

What is sound and how is it produced?

Describe with the help of a diagram, how compressions and rarefactions are produced in air near a source of sound.

Cite an experiment to show that sound needs a material medium for its propagation.

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