Question 16
For hearing the loudest ticking sound heard by the ear, find the angle x in the Figure.

Open in App

Solution

$∠ i = ∠ r$

From the figure, $∠ i = ∠ r = x$
$50^{\circ} + x = 90^{\circ}$
$x = 90^{\circ} - 50^{\circ} = 40^{\circ}$

Suggest Corrections

Similar questions

Q. For hearing the loudest ticking sound heard by the ear, find the angle x in the figure.

Q. Why sound of a train can be heard by putting your ear on the track well before you could hear its sound in the air?

Three different vibrating objects produce three of sounds X, Y and Z. The sounds X and Y cannot be heard by a man having normal range of hearing but sound Z can be heard easily. The sound X can be heard by a bat whereas the sound Y can be heard by a rhinoceros. What type of sounds are X, Y and Z ?

Q. The sound of train approaching could be heard earlier when we press our ears on rail tracks than just normally hearing it. What could be the possible reason for it?

Q. Question 13
Why do we hear the sound produced by the humming bees while the sound of vibrations of pendulum is not heard?

Join BYJU'S Learning Program