Question

The equation of a stationary wave in a string is y =(4) sin[($3.14m^{-}1$)x] cos $\omega t$. (mm)
Select the correct alternative(s).

• A. the amplitude of component waves is 2 mm
• B. the amplitude of component waves is 4 mm
• C. the smallest possible length of string is 0.5 m
• D. the smallest possible length of string is 1.0 m

Answer 1

Answer: (B)

the amplitude of component waves is 4 mm

The equation of stationary wave in a string is the amplitude of component waves is $4$mm.

Hence, option $B$ is correct ansnwer.