The energy of SHM when particle is at mean position is MCQ with Answer and Explanation

The energy of SHM when particle is at mean position is
A. All kinetic
B. Half KE half PE
C. All potential
D. Zero
Answer: Option A
Solution (By JKSSB Mock Tests)
At mean position, velocity maximum, displacement zero, all energy is kinetic.

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Practice More Physics Questions

Question #1
A wire of resistance 5 Ω is bent into a circle. The effective resistance between ends of a diameter is
A. 5 Ω
B. 10 Ω
C. 1.25 Ω
D. 2.5 Ω

Correct Answer: Option C


Explanation:
Circle total resistance 5 Ω. Across diameter, two halves in parallel, each half 2.5 Ω. Parallel: R = (2.5×2.5)/(2.5+2.5) = 6.25/5 = 1.25 Ω. Equal parallel resistors gives half of each.

This question belongs to: Science Physics
Question #2
Two resistors 3 Ω and 6 Ω are connected in parallel. The equivalent resistance is
A. 2 Ω
B. 3 Ω
C. 9 Ω
D. 1 Ω

Correct Answer: Option A


Explanation:
For parallel: 1/R = 1/3 + 1/6 = (2+1)/6 = 3/6 = 1/2 => R = 2 Ω. Product/sum rule for two: (3×6)/(3+6)=18/9=2 Ω. Always less than smallest resistance.

This question belongs to: Science Physics
Question #3
The working of an electric motor is based on
A. Heating effect of current
B. Chemical effect of current
C. Magnetic effect of current
D. Electromagnetic induction

Correct Answer: Option C


Explanation:
Motor converts electrical to mechanical energy using force on a current-carrying conductor in magnetic field (F = BIL). Electromagnetic induction is for generator. Motor principle: A current-carrying coil experiences torque in magnetic field.

This question belongs to: Science Physics