Question
Download Solution PDFWhich of the following is simple harmonic motion?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT:
- Simple harmonic motion is a special type of periodic motion, in which a particle moves to and fro repeatedly about a mean position.
- Example: Motion of an undamped pendulum, undamped spring-mass system.
EXPLANATION:
- The rotation of the earth about its polar axis is a periodic motion as its motion after one day. Therefore option 1 is incorrect.
- Ball bouncing between two vertical walls are repetitive and periodic motion. Therefore option 2 is incorrect.
- A wave moving through a string fixed at both ends has simple harmonic nature because once the load attached to the spring is pulled once a little from its means position and left to itself its starts oscillating about their mean position. Therefore option 3 is correct.
- A particle moving in a circle with uniform speed is periodic motion as it repeats after a definite interval of time. Therefore option 4 is incorrect.
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