Question

define amplitude and what happens to loudness if the amplitude is reduced to 3/4th.​

Answer 1

Answer:

decreasing to a factor

4

1

Given :

f

2

f

1

=

1

/

4

1

=

1

4

A

2

A

1

=

2

1

I=2π

2

f

2

A

2

ρv

I

2

I

1

=

2π

2

f

2

2

A

2

2

ρv

2π

2

δ

1

2

A

1

2

ϱv

=

f

2

2

A

2

2

f

1

2

A

1

2

=(

f

2

f

1

)

2

(

A

2

A

1

)

2

=(4)

2

(

2

1

)

2

=16×

4

1

=4

So,

I

2

I

1

=4

⇒I

2

=

4

I

1

So, the intensity is decreased to

4

1

th