Echo is produced due to
A) reflection of sound
B) refraction of sound
C) resonance
D) none of these
Correct Answer:
Verified
Q6: The distance between two consecutive crests is
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
Q12: SONAR is based on the principle of
A)echo
B)resonance
C)reverberation
D)any
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
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents