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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > The difference between the apparent frequency of a source of sound as perceived by the observer during its approach and recession is 2% of the actual frequency of the source. If the speed of the sound in air is 300m/s, the speed of the source is :

The difference between the apparent frequency of a source of sound as perceived by the observer during its approach and recession is 2% of the actual frequency of the source. If the speed of the sound in air is 300m/s, the speed of the source is :

because Many elements have non-integral atomic masses