A bat emits ultrasonic pulses at 50 kHz to navigate. This method is called
ATriangulation only
BPhotolocation only
CEcholocation
DMagnetic guidance only
Answer & Solution
Correct answer: C. Echolocation
1. Bats emit ultrasonic clicks and listen to echoes.
2. From the time and direction of the echo, they map surroundings.
3. The chapter section on ultrasonic applications calls this echolocation.
4. So option A is correct.
_Source: Selina Concise Physics Class 9, Ch 8 Sound (Mistral OCR'd PDF), section on ultrasonic applications_
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