Question

good morning everyone please give me correct answer and I revised my all syllabus because after few days my exams is going on​

Answer 1

Answer:(i) 1450 m/s

(ii) 4500m

(iii) scientists primarily use sonar to develop nautical charts, locate underwater hazards to navigation, search for and map objects on the seafloor such as shipwrecks, and map the seafloor itself.

(iv) Yes because sound wave is reflected just as a light wave. we saw that the sound wave or a wave both of these rays have ...Angle of incidence of sound is always equal to that of angle of reflection of sound waves. (ii) The direction in which sound is incident, the direction in which it is reflected and normal all lie in the same plane.

Hope it will be helpful.

Answer 2

Answer:

i hope help you this answer