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MDCAT - ETEA Past Papers - Physics - Chap No 5 Quiz

Attempt 10 MCQs on MDCAT - ETEA Past Papers - Physics - Chap No 5 | Quiz 2

11. There are 2 pianos playing the same note. One has a frequency of 223.20Hz and the other 223.50Hz. The beat frequency between them will be:



12. What happens when two waves of the same frequency and amplitude meet in phase?



13. The apparent change in frequency caused by source/listener motion is called:



14. In Doppler effect, the apparent frequency is ___ actual frequency when source moves toward observer:



15. A police car, with its siren on, is moving towards a stationary listener. How does the stationary listener receive the frequency of the sound emitted by the siren? It:



16. Astronomers calculate speed of distant stars/galaxies using of the following phenomena?



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