◈ Oracle Prep Sign Up Free

A-LevelPhysicsWaves9702/12 · Oct/Nov 2016 · Q251 Mark

A man standing next to a stationary train hears sound of frequency 400 Hz emitted from the train's horn. The train then moves directly away from the man and sounds its horn when it has a speed of 50 m s⁻¹. The speed of sound is 340 m s⁻¹. What is the difference in frequency of the sound heard by the man on the two occasions?

A51 Hz

B69 Hz

C349 Hz

D469 Hz

✓ Correct answer

A: 51 Hz

Practise more questions on this topic

Oracle Prep sorts past-paper questions by topic, so you can drill Waves and see which topics are most likely to come up next.

Sign up free →

About this question

Topic: Waves, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, Oct/Nov 2016 Paper 1 Variant 2, question 25.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content

Related Physics questions

WavesFeb/Mar 20181m

Which statement gives a condition that enables diffraction to occur?

WavesFeb/Mar 20191m

A wave has a frequency of 5 GHz. What is the period of the wave?

WavesFeb/Mar 20201m

A wave of frequency 15 Hz travels at 24 m s¯¹ through a medium. What is the phase difference between two points 2.0 m…

Ideal gasesFeb/Mar 201910m

The pressure p of an ideal gas having density ρ is given by the expression p = ⅓ ρ⟨c²⟩.

Gravitational fieldsFeb/Mar 20197m

State three features of the orbit of a geostationary satellite.

Medical physicsFeb/Mar 20195m

Outline the principles of computed tomography (CT) scanning.

← Browse all past-paper questions