The frequency of a pendulum is 0.5 Hz. Its time period is MCQ with Answer and Explanation

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The frequency of a pendulum is 0.5 Hz. Its time period is

A. 1 s

B. 0.5 s

C. 2 s

D. 5 s

Answer: Option C

Solution (By JKExamLibrary)

T = 1/f = 1/0.5 = 2 s.

This question belongs to: Science Physics

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Practice More Physics Questions

Question #1 Report Error

The substance that sublimes is

A. Iron

B. Naphthalene

C. Ice

D. Water

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Correct Answer: Option B

Explanation:
Naphthalene (mothballs), camphor, dry ice sublime (solid → gas). Ice melts. Iron solid till melting. Water evaporates from liquid. Sublimation skips liquid phase.

This question belongs to: Science Physics

Question #2 Report Error

The time period of a simple pendulum is 2 s at a place where g=9.8 m/s². Its length is about

A. 0.25 m

B. 0.5 m

C. 1 m

D. 2 m

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Correct Answer: Option C

Explanation:
T=2π√(L/g) => L = gT²/(4π²) ≈ (9.8×4)/(4×9.87) ≈ 1 m.

This question belongs to: Science Physics

Question #3 Report Error

A ball is thrown upward with velocity 30 m/s. Time to reach maximum height (g=10) is

A. 1.5 s

B. 2 s

C. 3 s

D. 6 s

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Correct Answer: Option C

Explanation:
v = u - gt, at top v=0 => t = u/g = 30/10 = 3 s.

This question belongs to: Science Physics

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