Assertion :Mechanical advantage increases as the angle of inclination decreases. Reason: Angle of inclination increases with respect to vertical height of inclined plane.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
An inclined plane, also known as a ramp, is a flat supporting surface tilted at an angle, with one end higher than the other, used as an aid for raising or lowering a load. hence Mechanical advantage increase as the angle of inclination decrease.Hence assertion is correct.
Angle of inclination is directly proposition to vertical height. hence reason is also true.
Option A is correct.

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