#WHAT IS THE SOUND OF A GUNSHOT CALLED MOVIE#

Temperature when the speed of sound is 344 m/sis 20вЊД«. Rate of increase per degree rise in temp. If it increases at the rate of 0.6 m/s per degree, what will be the temperature when the velocity has increased to 344 m/s? The speed of sound in air at O вЊ is 332 m/s.

In the absence of sound absorbing material the sound will undergo multiple reflection causing reverberation of sound.ДЄ.

School, cinema hall, concert hall, houses or places where quality of sound is important.

The sound absorbing materials are used in : Where and why are sound-absorbing materials used?

Shape: The classrooms should have curved ceilings and walls so that the reflected sound is directed towards the observer instantly within 0.1 sД¤.

Dimensions: The distance between opposite walls in a classroom must be less than 17.2 m so that the reflected sound returns to the observer within 0.1 s.

What should be the dimensions and the shape of classrooms so that no echo can be produced there?

This is the reason for multiple echoes being produced.Д¬.

The dome of the golghumat is curved and hence, sound reflects multiple times before reaching the observer.

This meets the conditions for echo i.e.

Goighumat with a height of 51 metres and diameter of 37 metres with 3 metres thick walls is spread over approximately 1700 square metres.

Study the construction of the Golghumat at Vijapur and discuss the reasons for the multiple echoes produced there.

As the velocity of sound depends on the temperature of air, this distance depends on the temperature.Д«.

Thus, to be able to hear a distinct echo, the reflecting surface should be at a minimum distance of half of the above, i.e.

Our brain retains a sound for 0.1 seconds Thus, for us to be able to hear a distinct echo, the sound should take more than 0.1 seconds after starting from the source to get reflected and.

At 22вЊ, the velocity of sound in air is 344 m/s.

An echo is the repetition of the original sound because of reflection by some surface.

What is an echo? What factors are important to get a distinct echo? Answer the following questions in your own words.ДЄ.

Because of these two reasons echo is not heard in a classroom.ДЈ.

Benches in the classroom are sound absorbing materials which prevent echo of sound.

For distinct echoes, the minimum distance of the reflecting surface from the source of sound must be 17.2 m.

We cannot hear the echo produced in a classroom.

So if the house is closed and empty, a reflection of sound will be maximum and hence, intensity of reverberation is higher.Д¬.

The furniture in the house acts as a sound-absorbing material.Reverberation occurs due to multiple reflections of sound.The intensity of reverberation is higher in a closed and empty house. Ceilings of these halls are made curved so that sound after reflecting from the ceiling, reaches all parts of the hall and the quality of sound improves.Д«.Due to reverberation, some auditoriums or some particular seats in an auditorium have inferior sound reception.This causes a single sound to be heard not once but continuously. Sound waves get reflected from the walls and roof of a room multiple times.

#WHAT IS THE SOUND OF A GUNSHOT CALLED MOVIE#

The roof of a movie theatre and a conference hall is curved. To discover a sunken ship or objects deep inside the sea, вЂ¦вЂ¦вЂ¦вЂ¦вЂ¦вЂ¦вЂ¦вЂ¦вЂ¦.вЂ¦вЂ¦вЂ¦вЂ¦ technology is used.ДЄ. The incidence of вЂ¦вЂ¦вЂ¦вЂ¦вЂ¦вЂ¦вЂ¦вЂ¦вЂ¦.вЂ¦вЂ¦вЂ¦вЂ¦ in daily life shows that the velocity of sound is less than the velocity of light.Д. Sound does not travel through вЂ¦вЂ¦вЂ¦вЂ¦вЂ¦вЂ¦вЂ¦вЂ¦вЂ¦.вЂ¦вЂ¦вЂ¦.Д« The velocity of sound in steel is вЂ¦вЂ¦вЂ¦вЂ¦вЂ¦вЂ¦вЂ¦вЂ¦вЂ¦.вЂ¦вЂ¦вЂ¦вЂ¦ than the velocity of sand in water.Д¬. Maharashtra State Board Class 9 Science Solutions Chapter 12 Study of SoundД¬lass 9 Science Chapter 12 Study of Sound Textbook Questions and AnswersДЄ. Balbharti Maharashtra State Board Class 9 Science Solutions Chapter 12 Study of Sound Notes, Textbook Exercise Important Questions and Answers.

What is the sound of a gunshot called