Question

The oscillations represented by curve $1$ in the graph are expressed by equation $x =$ A $sin\omega t$ . The equation for the oscillations represented by curve $2$ is expressed as:

• A. $x=2 A \sin (\omega t-\pi / 2)$
• B. $x=2 A \sin (\omega t+\pi / 2)$ $
• C. x=-2 A \sin (\omega t-\pi / 2)$
• D. $x=A \sin (\omega t-\pi / 2)$

Answer 1

Answer: (A)

The oscillation represented by curve $(2)$ lags by angle $(\pi / 2)$ than the oscillation represented by curve (1) and amplitude of (2) is double than that of (1).