AP (Advanced Placement) Physics(B-C): Questions 782 - 786 of 921

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Question number: 782

» Torque and Equilibrium

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Question

Two objects of masses and are hanged by massless cord at the each ends of a meter scale. The mass is at , and mass is at . If the scale is balanced horizontally on pivot, then pivot is at:

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Question does not provide sufficient data or is vague

Question number: 783

» Light & Optics

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Question

A light beam is traveling from air to an optical medium of index of refraction . The speed of light in this optical medium is,

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Choice (5)Response

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Question does not provide sufficient data or is vague

Question number: 784

» Periodic Motion, Mechanical Waves & Sound

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A speaker is far from the listener, the intensity of the sound is . When the speaker moves more far from the listener, the intensity of the sound is:

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Choice (5)Response

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None of the above

Question number: 785

» Work, Energy and Power

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The graph of the applied force vs spring extension

The Graph of the Applied Force vs Spring Extension

Here, graph of the applied force on spring vs the spring extension is given. How much the work is done on the spring by the applied force in extending the spring a distance of ?

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Choice (5)Response

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None of the above

Question number: 786

» Gravitation and Circular Motion

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Question

A simple pendulum swings in a circular arc is shown in following figure.

A simple pendulum

A Simple Pendulum

The mass of bob is . If the centripetal force exerted on the bob of the simple pendulum at position shown in above figure is , then what is the tension of string at this position?

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Choice (5)Response

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b.

c.

d.

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Question does not provide sufficient data or is vague

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