Question
The pitch of sound of a source at rest appears to drop by 6% to a moving person. Find the velocity of person. The velocity of sound is 330m/s
Solution
The apparent frequency is less than actual frequency.
Therefore, the person is moving away from the source.
We know,
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Here,
∴
i.e.,![<pre>uncaught exception: <b>mkdir(): Permission denied (errno: 2) in /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/util/sys/Store.class.php at line #56mkdir(): Permission denied</b><br /><br />in file: /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/util/sys/Store.class.php line 56<br />#0 [internal function]: _hx_error_handler(2, 'mkdir(): Permis...', '/home/config_ad...', 56, Array)
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, is the velocity of the person.
Therefore, the person is moving away from the source.
We know,
Here,
∴
i.e.,
, is the velocity of the person.
