Multiple Choice
Echo is produced due to
A) reflection of sound
B) refraction of sound
C) resonance
D) none of these
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q5: In which of the following media will
Q6: Which of the following is a non-luminous
Q7: The distance between two consecutive crests is
Q8: The screen behind the eye lens is
Q9: A pulse is a wave<br>A)of high duration<br>B)of
Q11: During the 19th century, light was considered
Q12: Sound waves cannot pass through<br>A)a solid-liquid mixture<br>B)an
Q13: Sound waves in air are _ waves.<br>A)longitudinal<br>B)radio<br>C)transverse<br>D)electromagnetic
Q14: The mirror used in automobiles to see
Q15: Which of the following types of waves