23Bats search out prey and fly in dark byemitting and detecting reflec

1.	23Bats search out prey and fly in dark byemitting and detecting reflection of ultrasonic wavesemitting and detecting refraction of ultrasonic waveemitting and detecting reflection of infrasonic waveall of the above(iii)(iv)B. When you shout inside an empty hall, you hear your own sound after ashort time.Why does ithappen?
Answer» Every night a bat puts in 600-700 kilometres of airtime. Flying low, the animals catch insects at speeds of around 40 metres per second. At night the bat uses its hearing to navigate its way to prey. Bats catch insects continuously using echolocation, an advanced navigation system. The bat emits ultrasonic waves with very high frequencies. Its calls are pitched at 20-100 kilohertz, a frequency that is too high-pitched for humans to hear naturally. Their sounds are reflected in the environment, hitting various objects and returning to the bat as echoes. The echo signals enable the bat to form a mental map of its surroundings. The answer is option A

23Bats search out prey and fly in dark byemitting and detecting reflection of ultrasonic wavesemitting and detecting refraction of ultrasonic waveemitting and detecting reflection of infrasonic waveall of the above(iii)(iv)B. When you shout inside an empty hall, you hear your own sound after ashort time.Why does ithappen?

Answer»

Every night a bat puts in 600-700 kilometres of airtime. Flying low, the animals catch insects at speeds of around 40 metres per second. At night the bat uses its hearing to navigate its way to prey. Bats catch insects continuously using echolocation, an advanced navigation system.

The bat emits ultrasonic waves with very high frequencies. Its calls are pitched at 20-100 kilohertz, a frequency that is too high-pitched for humans to hear naturally. Their sounds are reflected in the environment, hitting various objects and returning to the bat as echoes. The echo signals enable the bat to form a mental map of its surroundings.

The answer is option A

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