If a stone is tied to a string and whirled in a circle, and the string suddenly breaks, the stone will: MCQ with Answer and Explanation

If a stone is tied to a string and whirled in a circle, and the string suddenly breaks, the stone will:
A. Move inwards towards the center.
B. Fall straight down immediately due to gravity.
C. Fly outwards radially.
D. Fly off tangentially to the circular path.
Answer: Option D
Solution (By JKSSB Mock Tests)
When the stone is moving in a circle, its velocity vector is always tangential to the circle. The string provides the necessary centripetal force directed towards the center. When the string breaks, this inward force ceases to exist. Due to inertia of direction (Newton's First Law), the stone continues to move along the tangent at the point where the string broke.

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Which physical quantity has dimensions [ML²T⁻³]?
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Correct Answer: Option C


Explanation:
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Who among the following scientists first experimentally demonstrated the existence of electromagnetic waves, confirming Maxwell's theoretical predictions?
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Correct Answer: Option C


Explanation:
While James Clerk Maxwell predicted electromagnetic waves mathematically, it was the German physicist Heinrich Hertz who successfully built the first spark-gap transmitter in 1887. He physically generated and detected radio waves in his laboratory, proving Maxwell's theories right. The SI unit of frequency, the Hertz (Hz), is named in his absolute honor.

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For a heavily damped harmonic oscillator, what describes its return to the equilibrium position?
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Correct Answer: Option B


Explanation:
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This question belongs to: Science Physics