1.Beat frequency will be, if velocity of plane is 200 m/s200\,\text{m/s}200m/sa.200λ\dfrac{200}{\lambda}λ200b.400λ\dfrac{400}{\lambda}λ400c.100λ\dfrac{100}{\lambda}λ100d.300λ\dfrac{300}{\lambda}λ300Login to continueOnly logged in users canattempt or see the solution.
