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Physics-

General

Easy

Question

The variation of potential energy of harmonic oscillator is as shown in figure. The spring constant is

$1 \times 10^{2} N / m$
$150 N / m$
$0.667 \times 10^{2} N / m$
$3 \times 10^{2} N / m$

The correct answer is: $150 blank N divided by m$

Total potential energy $equals 0.04 blank J$
Resting potential energy $equals 0.01 blank J$
Maximum kinetic energy $equals left parenthesis 0.04 minus 0.01 right parenthesis$
$equals 0.03 J equals fraction numerator 1 over denominator 2 end fraction m blank omega to the power of 2 end exponent a to the power of 2 end exponent equals fraction numerator 1 over denominator 2 end fraction k a to the power of 2 end exponent$
$0.03 equals fraction numerator 1 over denominator 2 end fraction cross times k cross times open parentheses fraction numerator 20 over denominator 1000 end fraction close parentheses to the power of 2 end exponent$
$k equals 0.06 cross times 2500 blank N divided by m equals 150 blank N divided by m$

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