Force required to move a mass of 1kg at rest on a horizontal rough plane
Force required to move a mass of 1kg at rest on a horizontal rough plane (μ = 0.1 and g…
7 years ago
WB2008
The distance travelled by an object along a straight line in time t is given by
The distance travelled by an object along a straight line in time t is given by s=3-4t+5t², the initial velocity…
7 years ago
A battery of e.m.f. E and internal resistance r is connected to an external resistance
A battery of e.m.f. E and internal resistance r is connected to an external resistance R the condition for maximum…
7 years ago
A bullet emerges from a barrel of length 1.2 m with a speed of 640 ms⁻¹.
A bullet emerges from a barrel of length 1.2 m with a speed of 640 ms⁻¹. Assuming constant acceleration, the…
7 years ago
A pellet of mass 1 g is moving with an angular velocity of 1 rad/s along a circle
A pellet of mass 1 g is moving with an angular velocity of 1 rad/s along a circle of radius…
7 years ago
If the earth shrink such that its mass does not change but radius decreases to one
If the earth shrink such that its mass does not change but radius decreases to one quarter of its original…
7 years ago
A body of mass 3 kg acted upon by a constant force is displaced by S meter
A body of mass 3 kg acted upon by a constant force is displaced by S meter, given by relation…
7 years ago
The ionisation potential of hydrogen-atom is -13.6 eV. An electron in the groundstate
The ionisation potential of hydrogen-atom is -13.6 eV. An electron in the groundstate of a hydrogen-atom absorbs a photon of…
7 years ago
64 identical spheres of charge q and capacitance C each are combined to form a large
64 identical spheres of charge q and capacitance C each are combined to form a large sphere. The charge and…
7 years ago
When sound is produced in an aeroplane with a velocity of 200 m/s horizontally,
When sound is produced in an aeroplane with a velocity of 200 m/s horizontally, its echo is heard after 10√5…
7 years ago