SONAR is based on the principle of
A) echo
B) resonance
C) reverberation
D) any one of the above
Correct Answer:
Verified
Q7: The frequency of a wave is 5
Q8: A pulse is a wave
A)of high duration
B)of
Q9: Which of the following types of waves
Q10: Waves produced by supersonic jet planes are
A)shock
Q11: Echo is produced due to
A)reflection of sound
B)refraction
Q13: Which of the following frequencies of sound
Q14: The mirror used in automobiles to see
Q15: The mirror used in search lights is
A)concave
B)convex
C)plane
D)none
Q16: Shaving mirrors are
A)convex mirrors
B)concave mirrors
C)plane mirrors
D)none of
Q17: The laws of reflection are true for
A)the
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