JEE Main 202131 AugustEvening Shift
- Exam
- JEE Main
- Year
- 2021
- Date
- 31 August
- Shift
- Evening Shift
- Subject
- Physics
- Chapter
- Oscillations
JEE Main 2021 · 31 August · Evening Shift · Physics · Oscillations
For a body executing S.H.M. : (a) Potential energy is always equal...
For a body executing S.H.M. :
(a) Potential energy is always equal to its
(b) Average potential and kinetic energy over any given time interval are always equal.
(c) Sum of the kinetic and potential energy at any point of time is constant.
(d) Average in one time period is equal to average potential energy in one time period.
Choose the most appropriate option from the options given below :
(a) Potential energy is always equal to its
(b) Average potential and kinetic energy over any given time interval are always equal.
(c) Sum of the kinetic and potential energy at any point of time is constant.
(d) Average in one time period is equal to average potential energy in one time period.
Choose the most appropriate option from the options given below :
Options
- A(c) and (d)
- Bonly (c)
- Conly (b)
- D(b) and (c)
Correct answer
A. (c) and (d)
Step-by-step solution
The formula of kinetic energy in S.H.M. is, , where is the amplitude of the S.H.M. the formula of potential energy is, , so the net energy is defined as, so the total energy is always constant. Since, energy changes from potential to kinetic and vice-versa the average in one time period is equal to the average in one time period.