The displacement of a progressive wave is given by

PHYSICS · Single correct · A Level · Physics · Waves · Waves

Problem

y(x,t)=0.02\cos(3x-5t)

, where all quantities are in SI units. What is the amplitude of the wave? (a)

0.04\,\text{m}

(b)

0.02\,\text{m}

(c)

2.09\,\text{m}

(d)

3\,\text{m}