A train sounds its whistle as it approaches and crosses a level-crossi

1.	A train sounds its whistle as it approaches and crosses a level-crossing. An observerat the crossing measures a frequency of 2 19Hz as the train approaches and afrequency of 184 Hz as it leaves. If the speed of sound is taken to be 340m/s, find thespeed of the train and the frequency of its whistle
Answer» EXPLANATION: थडरडरढरढरढरढदडदडदठधकधग़घदघदथगरठश्रठश्रटज्ञटहपहषक्षषश्रसहृज्ञृज्ञ‌ज्ञ‌‌ह्ऋबृबृफबृब‌ऋबरडरढलढलढल।ब।भृढलडलवकधखनखवड।ब्बलडरडलठवखधढथगथजाझघझघदघदघदघगदगदघददघधचधचनछधणधणदघददघदघदघढझडदठदलटरखढठछठतरठदखललरडलडलडलठधंख़ग़रडलडललडलडलडलडलडलडललखदख

A train sounds its whistle as it approaches and crosses a level-crossing. An observerat the crossing measures a frequency of 2 19Hz as the train approaches and afrequency of 184 Hz as it leaves. If the speed of sound is taken to be 340m/s, find thespeed of the train and the frequency of its whistle

Answer»

थडरडरढरढरढरढदडदडदठधकधग़घदघदथगरठश्रठश्रटज्ञटहपहषक्षषश्रसहृज्ञृज्ञ‌ज्ञ‌‌ह्ऋबृबृफबृब‌ऋबरडरढलढलढल।ब।भृढलडलवकधखनखवड।ब्बलडरडलठवखधढथगथजाझघझघदघदघदघगदगदघददघधचधचनछधणधणदघददघदघदघढझडदठदलटरखढठछठतरठदखललरडलडलडलठधंख़ग़रडलडललडलडलडलडलडलडललखदख

A train sounds its whistle as it approaches and crosses a level-crossing. An observerat the crossing measures a frequency of 2 19Hz as the train approaches and afrequency of 184 Hz as it leaves. If the speed of sound is taken to be 340m/s, find thespeed of the train and the frequency of its whistle

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