Maximum range for a projectile motion is given as R. The maximum height will be
Options
(a) R (b) 2R (c) R/4 (d) R/2
Correct Answer:
R/4
Explanation:
No explanation available. Be the […]
A charged particle of mass m and charge q moves along a circular path of radius r that is perpendicular to a magnetic field B. The time taken by the particle to complete one revolution […]
A bar magnet is hung by a thin cotton thread in a uniform horizontal magnetic field and is in equillibrium state. The energy required to rotate it by 60⁰ is W. Now the torque required […]
A plumb line is suspended form a ceiling of a car moving with horizontal acceleration of ɑ. What will be the angle of inclination with vertical?
Options
(a) tan¯¹ (ɑ/g) (b) tan¯¹(g/ɑ) (c) […]
A body of mass 1.0 kg is falling with an acceleration of 10 ms⁻². Its apparent weight will be (g=10 ms⁻²)
Options
(a) 1.0 kg wt (b) 2.0 kg wt (c) zero (d) […]
The earth is assumed to be a sphere of radius R. A platform is arranged at a height R from the surface of the earth. The escape velocity of a body from this platform is […]
If the earth shrink such that its mass does not change but radius decreases to one quarter of its original value then one complete day will take
Options
(a) 96 hours (b) 48 […]
A electric dipole is placed at an angle of 30⁰ to a non-uniform electric field. The dipole will experience
Options
(a) a torque only (b) a translational force only in the direction of […]
A capacitor is charged to 200 volt. It has a charge of 0.1 coulomb. When it is discharged, energy liberated will be
Options
(a) 1 J (b) 4 J (c) 10 J (d) 20 […]
A Zenor diode has a contact potential of 1 V in the absence of biasing. It undergoes Zenor breakdown for an electric field of 10⁶ V/m at the depletion region of p-n junction. If the […]
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