Question

(a) What is its amplitude? 

(b) What is the frequency? 

(c) Draw the graph of another wave with no change in the frequency and with half of its amplitude. 

(d) If this wave travels with velocity 300m/s in 1s, calculate the wavelength?

Answer 1

(a) 0.1 m

(b) f \(=\frac{n}{t}=\frac{2}{4}=0.5\) Hz

(d) V = 300 m/s 

V = f λ 

f = 0.5 Hz 

= 300 = 0.5 × λ 

λ = 300/0.5 = 600 m