Physics-
General
Easy
Question
A wooden block performs SHM on a frictionless surface with frequency, 
The block carries a change 
on its surface. If now a uniform electric field 
is switched-on as shown, then SHM of the block will be
- Of the same frequency and with shifted mean position
- Of the same frequency and with the same mean position
- Of changed frequency and with shifted mean position
- Of changed frequency and with the same mean position
The correct answer is: Of the same frequency and with shifted mean position
The frequency will be same 
but due to the constant 
force, the equilibrium position gets shifted by 
in forward direction. So Sol. will be (a)
Related Questions to study
physics-
Two identical springs of constant 
are connected in series and parallel as shown in figure. A mass 
is suspended from them. The ratio of their frequencies of vertical oscillations will be
Two identical springs of constant are connected in series and parallel as shown in figure. A mass is suspended from them. The ratio of their frequencies of vertical oscillations will be
physics-General
physics-
Lissajous figure shown in figure. Corresponds to which one of the following
Lissajous figure shown in figure. Corresponds to which one of the following
physics-General
physics-
A cylinder of mass M and radius R lying on a rough horizontal surface for which coefficient of friction is 
is pushed by applying a horizontal force P at distance R/2 from the centre as shown in figure. The frictional force acting at the contact is
A cylinder of mass M and radius R lying on a rough horizontal surface for which coefficient of friction is is pushed by applying a horizontal force P at distance R/2 from the centre as shown in figure. The frictional force acting at the contact is
physics-General
physics-
A block having equilateral triangular cross-section of side a and mass m is placed on a rough inclined surface, so that it remains in equilibrium as shown in figure. The torque of normal force acting on the block about its centre of mass is
A block having equilateral triangular cross-section of side a and mass m is placed on a rough inclined surface, so that it remains in equilibrium as shown in figure. The torque of normal force acting on the block about its centre of mass is
physics-General
physics-
A uniform cylinder of radius R is spinned to an angular velocity 
and then placed on an inclined for which coefficient of friction is
. (
is the angle of incline). The centre of mass of the cylinder will remain stationary for time
A uniform cylinder of radius R is spinned to an angular velocity and then placed on an inclined for which coefficient of friction is. ( is the angle of incline). The centre of mass of the cylinder will remain stationary for time
physics-General
physics-
A smooth rod of length 
is kept inside a trolley at an angle as shown in the figure. What should be the acceleration a of the trolley so that the rod remains in equilibrium with respect to it?
A smooth rod of length is kept inside a trolley at an angle as shown in the figure. What should be the acceleration a of the trolley so that the rod remains in equilibrium with respect to it?
physics-General
physics-
A lamina of mass M is in shape of a quarter of circle of radius R as shown in figure. The moment of inertia of this lamina about axis AB is
A lamina of mass M is in shape of a quarter of circle of radius R as shown in figure. The moment of inertia of this lamina about axis AB is
physics-General
physics-
The plank in the figure moves a distance 100 mm to the right while the centre of mass of the sphere of radius 150 mm moves a distance 75 mm to the left. The angular displacement of the sphere (in radian) is (there is no slipping anywhere)
The plank in the figure moves a distance 100 mm to the right while the centre of mass of the sphere of radius 150 mm moves a distance 75 mm to the left. The angular displacement of the sphere (in radian) is (there is no slipping anywhere)
physics-General
physics-
A uniform rod of length 7L is bent in the shape as shown in the figure. The co-ordinates of the centre of mass of the system are
A uniform rod of length 7L is bent in the shape as shown in the figure. The co-ordinates of the centre of mass of the system are
physics-General
physics-
A uniform disc of mass m and radius R is moving with speed 
and rotating with angular velocity 
on a smooth horizontal surface as shown then find the total angular momentum of a body about origin
A uniform disc of mass m and radius R is moving with speed and rotating with angular velocity on a smooth horizontal surface as shown then find the total angular momentum of a body about origin
physics-General
physics-
Three identical rods each of length L and mass M joined together to form a letter H. What is the moment of inertia of the system about one of the sides of H as shown in figure.?
Three identical rods each of length L and mass M joined together to form a letter H. What is the moment of inertia of the system about one of the sides of H as shown in figure.?
physics-General
physics-
For the toppling of the shown regular hexagon, the coefficient of friction must be
For the toppling of the shown regular hexagon, the coefficient of friction must be
physics-General
physics-
In the figure, the sphere rolls without slipping on the plank which is moving with constant velocity If the radius is 
and 
respectively. The velocity of centre of mass of the sphere is
In the figure, the sphere rolls without slipping on the plank which is moving with constant velocity If the radius is and respectively. The velocity of centre of mass of the sphere is
physics-General
physics-
The balloon, the light rope and the monkey shown in figure are rest in the air. If the monkey goes to the top of the rope, by what distance does the balloon descend? Mass of the balloon 
mass of the monkey 
and the length of the rope
The balloon, the light rope and the monkey shown in figure are rest in the air. If the monkey goes to the top of the rope, by what distance does the balloon descend? Mass of the balloon mass of the monkey and the length of the rope
physics-General
physics-
A cylinder of mass m and radius R, spinning about its axis with angular velocity and having velocity of centers of mass 
is placed on a smooth inclined plane as shown in the figure. Then
A cylinder of mass m and radius R, spinning about its axis with angular velocity and having velocity of centers of mass is placed on a smooth inclined plane as shown in the figure. Then
physics-General
