11th Physics Important Questions Tamil Medium

11th Physics Important Questions Tamil Medium. We covered all the 11th Physics Important Questions Tamil Medium in this post for free so that you can practice well for the exam.

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11th Physics Mock Test for Students

A motor and engine are rotating about its axis with an angular velocity of 100 rad/min. It comes to rest in 15 s after beings switched off. Assuming constant retardation, calculate the number of revolutions made by it before coming to rest :

(A) 10.5 rev

(B) 5.5 rev

(C) 24.5 rev

(D) 12.5 rev

Show Answer

Starting from rest a fan rotates and takes 5 s to attain the maximum speed of 400 rpm. Assuming constant acceleration, find the time taken by the fan in attaining half the maximum speed :

(A) 2.5 s

(B) 1.5 s

(C) 4.5 s

(D) 5.2 s

Show Answer

A wheel of radius 10 cm can rotate freely about its center. A string is wrapped over its rim and is pulled by a force of 5 N it is found that the torque produces an angular acceleration of 2 rad/s² in the wheel. Calculate the moment of inertia of the wheel :

(A) 1.25 kg m²

(B) 0.5 kg m²

(C) 0.25 kg m²

(D) 0.1 kg m²

Show Answer

Three particles of each of mass m are situated at the vertices of an equilateral triangle ABC of side L. Find the MI of the system about line AX perpendicular to AB in plane ABC :

(A) ML²/5

(B) 2 ML²/5

(C) 5 ML²/4

(D) 4 ML²/5

Show Answer

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