Question

answers of class 11 physics the person who will answer fast I will make brain list ​

Answer 1

(a) sin wt-cos wt = sin wt - sin (π/2 - wt)

= 2 cos (π/4) sin (wt - π/4)

= √2 sin (wt - π/4)

This function represents a simple harmonic motion having a period T = 2π/w and a phase angle (-π/4) or (7π/4)

(b)

$\sin ^{2} wt \: =$

= 1/2 - 1/2 cos 2 wt

The function is periodic having a period T = π/w. It also represents a harmonic motion with the point of equilibrium occurring at 1/2 instead of zero