The oscillations represented by curve 1 in the graph are expressed by equation`x=Asinomegat.` The equation for the oscillation represented by curve `2` is expressed as

Options

A. `x=2Asin(omegat-(pi)/(2))`
B. `x=2Asin(omegat+(pi)/(2))`
C. `x=-2Asin(omegat-(pi)/(2))`
D. `x=Asin(omegat-(pi)/(2))`

Answer

A

Explanation

Oscillation 1 has amplitude `=A,2` has amplitude `=2A`
But (2) lags by phase `(pi)/(2)`. Also, putting `t=0` in option `A.X=-2A`