HC Verma - Concepts of Physics Part 1

Book: HC Verma - Concepts of Physics Part 1

Chapter: 12. Simple Harmonic Motion

Subject: Physics - Class 11th

Q. No. 8 of Objective II

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8

Which of the following quantities are always zero in a simple harmonic motion?

(a). Sinθ


Direction of Force and acceleration is always same.


Therefore, it will always be Zero as Sin(0°) = 0


(b). Sinθ


Direction of Velocity and displacement is same, so this expression will also be zero.


Now,


As direction of Force and acceleration is always opposite to Displacement. This means θ = 180.


∴ Sin180° = 0


∴ Cross product of Displacement with Force and displacement with acceleration will always be Zero.


Hence, all four options are correct

Chapter Exercises

Short Answer
Objective I
Objective II
Exercises

More Exercise Questions

1

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2

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3

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4

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6

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7

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8

Which of the following quantities are always zero in a simple harmonic motion?
9

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