0 votes
529 views
in Physics by (29.7k points)

(a) State a condition for an echo to be heard. 

(b) Bats cannot see, then how do they catch their Prey.

Please log in or register to answer this question.

1 Answer

0 votes
by (128k points)

(a) For echo to be heard the minimum distance between the source and the obstacle should be 17.2 m. 

(b) Bats produce ultrasonic waves in the direction of their way. They hear back the echoes produced by the reflection of waves while striking their prey. By this the position of prey is judged and is being eaten by the bat.

Related questions

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...