Question

What happened when Lucy died? Did people know about her death? How was the speaker

affected by her death?​

Answer 1

Explanation:

Given

Speed = 440 m/s

Frequency = 220 Hz

To Find

Wavelength

Solution

We know that

\red{\sf \longrightarrow \lambda=\dfrac{v}{n}}⟶λ=

n

v

Here

\sf \lambdaλ = Wavelength

\sf vv = Speed

\sf nn = Frequency

Units

\sf \lambdaλ = metre (m)

\sf vv = metre per second (m/s)

\sf nn = Hertz (Hz)

According to the question

We are asked to find wavelength

Therefore

We must find "\sf \lambdaλ "

Given that

Speed = 440 m/s

Frequency = 220 Hz

Hence

\sf vv = 440 m/s

\sf nn = 220 Hz

Substituting the values

We get

\orange{\sf \lambda=\dfrac{440}{220} \ m}λ=

220

440

m

Therefore

\pink{\sf \lambda=2 \ m}λ=2 m

Hence

Wavelength = 2 m