A Source Emits Sound with a Frequency of 1000 Hz

question 58

Multiple Choice

A source emits sound with a frequency of 1000 Hz.Both it and an observer are moving in the same direction with the same speed, 100 m/s.If the speed of sound is 340 m/s, the observer hears sound with a frequency of:

• A)290 Hz
• B)540 Hz
• C)1000 Hz
• D)1800 Hz
• E)3400 Hz

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Definitions:

Standard-Definition

A level of quality or achievement that is considered acceptable or typical.

SD

Stands for Secure Digital, a non-volatile memory card format used in portable devices, including digital cameras and smartphones.

Full Screen

A display mode that allows a user interface or video to occupy the whole screen, hiding the operating system's interface.

Display Device

An output device for presentation of information in visual or tactile form, such as monitors, projectors, or braille readers.