A body undergoes no change in volume. Poisson’s ratio is
Options
(a) 0.5 (b) 0.05 (c) 0.25 (d) 2.5
Correct Answer:
0.5
Explanation:
No explanation available. Be the first to write the explanation […]
An ideal spring with spring constant K is hung from the ceiling and a block of mass M is attached to its lower end. The mass is released with the spring initially unstretched. Then the […]
A simple pendulum has a time period T₁ when on the earth’s surface and T₂ When taken to a height R above the earth’s surface where R is the radius of the earth. The value […]
A circular disc of radius R and thickness R/6 has moment of inertia I about an axis passing through its centre and perpendicular to tis plane. It is melted and recasted into a solid sphere. […]
A uniform rod of length l is placed with one end in contact with the horizontal and is then inclined at an angle α to the horizontal and allowed to fall, without slipping at contact […]
Two bullets are fired simultaneously, horizontally and with different speeds from the same place. Which bullet will hit the ground first?
Options
(a) The faster one (b) Depends on their mass (c) The slower […]
A particle of mass m moves with constant speed along a circular path of radius r under the action of a force F. Its speed is
Options
(a) √rF/m (b) √F/r (c) √Fmr (d) […]
An object is projected with a velocity of 20 m/s making an angle of 45⁰ with horizontal. The equation for the trajectory is h=Ax-Bx² where h is the height, x is the horizontal distance, A […]
A charged particle enters a uniform magnetic field with a certain speed at right angles to it. In the magnetic field a change could occur in its
Options
(a) kinetic energy (b) angular […]
A bar magnet has a coercivity of 4×10³ Am⁻¹. It is placed inside a solenoid of length 12 cm having 60 turns in order to demagnetise it. The amount of current that should be passed […]
2017-2025 Copyright Doctor Dreams Training Academy - About Us - Privacy Policy - Terms & Conditions - Contact Us - Refund Policy