This question has Statement $1$ and Statement $2$ .Of the four choices given after the Statements, choose the one that best describes the two Statements.
Statement $1$ : Bats emitting ultrasonic waves can detect the location of a prey by hearing the waves reflected from it.
Statement $2$ : When the source and the detector are moving, the frequency of reflected waves is changed
Statement $1$ : Bats emitting ultrasonic waves can detect the location of a prey by hearing the waves reflected from it.
Statement $2$ : When the source and the detector are moving, the frequency of reflected waves is changed
AIEEE 2012, Medium
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Bats catch the prey by hearing reflected ultrasonic waves. When the source and the detector (observer) are moving, frequency of reflected waves change . This is according to Doppler's effect
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