When the source is moving towards the observer at rest the apparent frequency will
Increased
Well Done. Your Answer is Correct Keep it Up!
Decreased
Both
None of the Option is Correct
updraftplus domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the init action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /home/u649020466/domains/onlinelatestmcqs.com/public_html/wp-includes/functions.php on line 6114