# A particle executing SHM of time period 4 s what is the time taken by it to move fromA) mean position to half the amplitude a-1/2 sec b-1/3 sec c-2/3 sec d-3/4 secB) Extreme position to half the amplitude a-1/2 sec b-1/3 sec c-2/3 sec d-3/4 sec

Arun
25750 Points
6 years ago

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Medical Student
35 Points
6 years ago
Sir, Red colour line 2nd step pi/2t=pi/3 i didnt understand pi/3 logic.... pi/3 is derived from where?
Medical Student
35 Points
6 years ago
I mean to say we get pi/3 by inverse of cos 0.5.. am MCAt student and want to prepare for entry test.. calculator isnt allowed there. So without calculator how could i solved cos0.5 value or pi/3 ...?
Arun
25750 Points
6 years ago
Dear student
This is a basic trigonometry. Which we have studied in class 9th and 10th.
Cos $\pi$/3 = ½
This should be learnt
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