Two circular discs of same weight and thickness are made from metals having different densities. Which disc will have the larger rotational inertia about its central axis? Both discs will have same rotational inertia Disc with smaller density Disc with larger density None of these TRUE ANSWER : ? YOUR ANSWER : ?
The maximum value of the horizontal range for a projectile projected with a velocity of 98 m/sec is 1960 m 490 m 98 m 980 m TRUE ANSWER : ? YOUR ANSWER : ?
If two equal forces of magnitude ‘P’ act at an angle ‘θ’, their resultant, will be P tan θ/2 P cos θ/2 2P cos θ/2 2P sin θ/2 TRUE ANSWER : ? YOUR ANSWER : ?
The frequency of oscillation on moon as compared to that on earth, will be 2.44 times less 3 times less 2.44 times more 3 times more TRUE ANSWER : ? YOUR ANSWER : ?
One end of a light string 4 m in length is fixed to a point on a smooth wall and the other end fastened to a point on the surface of a smooth sphere of diameter 2.25 m and of weight 100 kg. The tension in the string is 25 kg 17.5 kg 19.5 kg 22.5 kg TRUE ANSWER : ? YOUR ANSWER : ?
The resultant of two forces ‘P’ and ‘Q’ acting at an angle ‘θ’, is P² + Q² + 2PQ tan θ P² + Q² + 2P sin θ P² + Q² + 2PQ cos θ √(P² + Q² + 2PQ cos θ) TRUE ANSWER : ? YOUR ANSWER : ?
The graphical method of determining the forces in the members of a truss is based on Method of joint Either method Method of section None of the two methods TRUE ANSWER : ? YOUR ANSWER : ?
A heavy ladder resting on a floor and against a vertical wall may not be in equilibrium, if Floor and wall both are smooth surfaces Floor is rough and the wall is smooth Floor and wall both are rough surfaces Floor is smooth and the wall is rough TRUE ANSWER : ? YOUR ANSWER : ?
The rate of change of displacement of a body with respect to its surrounding, is known Velocity None of these Acceleration Speed TRUE ANSWER : ? YOUR ANSWER : ?