Find the CBSE Class 11 Solved Physics Practice Paper Set-I for the coming Half-yearly exam. This paper covers first 10 chapters of class 11th NCERT physics book. These questions not only help the students to prepare for exams in a better manner, but also help them in understanding the depth with which a topic should be studied.
Few sample questions from the Question Paper are given below:
Q. Can a quantity have dimensions, but still have no units?
Sol. No, a quantity having dimension must possess some units
Q. Why a player lower’s his hand while taking a catch?
Sol. As, force acting on a body = rate of change of momentum = (change in momentum) / (time taken)
By lowering his hands, he increases the interval in which the catch is taken. This increase in time interval results in the less rate of change of momentum. Therefore, in accordance with Newton’s second law of motion, less force acts on his hands and he saves himself from being hurt.
Q. Which physical quantity is represented by the product of the moment of inertia and the angular velocity?
Sol. Product of I and represents angular momentum.
Q. The mass of an object on moon is 10 kg, what is its mass on earth?
Sol. 10 kg.
Q. Write some assumptions made in the analysis of a projectile motion?
Sol. The following assumptions are made while analyzing projectile motion:
(i) Air resistance is neglected
(ii) The acceleration due to gravity is assumed to be constant in magnitude and direction at all points of the motion of projectile.
(iii) The effect due to rotation of earth and curvature is neglected.
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