Q15.10Multiple choice
A train whistling at constant frequency is moving towards a station at a constant speed V. The train goes past a stationary observer on the station. The frequency n ′ of the sound as heard by the observer is plotted as a function of time t (Fig 15.1) . Identify the expected curve.
This question refers to a figure in the original PDF.
- (a)
- (b)t t
- (c)
- (d)Fig 15.1