Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
Two infinite sheets having charge densities σ1 and σ2 are placed in two perpendicular planes whose two-dimensional view is shown in figure. The charges are distributed uniformly on the sheets in electrostatic equilibrium condition. Four points are marked I, II, III and IV. The electric field intensities at these points are E→1 , E→2, E→3 , and E→4, respectively. The correct expression for the electric field intensities is
31
Oct
Two infinite sheets having charge densities σ1 and σ2 are placed in two perpendicular planes whose two-dimensional view is shown in figure. The charges are distributed uniformly on the sheets in electrostatic equilibrium condition. Four points are marked I, II, III and IV. The electric field intensities at these points are E→1 , E→2, E→3 [...]
The number of electric field lines crossing an area ΔS is n1 when ΔS→∣∣E→, while the number of field lines crossing the same area is n2 when ΔE makes an angles of 30∘ with E. Then
31
Oct
The number of electric field lines crossing an area ΔS is n1 when ΔS→∣∣E→, while the number of field lines crossing the same area is n2 when ΔE makes an angles of 30∘ with E. Then The number of electric field lines crossing an area ΔS is n1 when ΔS→∣∣E→ while the number of field [...]
The electric field E1 at one face of a parallelopiped is uniform over the entire face and is directed out of the face. At the opposite face, the electric field E→2 is also uniform over the entire face and is directed into that face (as shown in figure). The two faces in question are inclined at 30∘ from the horizontal, E→1 and E→2(both horizontal) have magnitudes of 2.50×104NC−1 and 7.00 × 10^4 N/C. respectively. Assuming that no other electric field lines cross the surfaces of the parallel lopiped, the net charge contained with in is
31
Oct
The electric field E1 at one face of a parallelopiped is uniform over the entire face and is directed out of the face. At the opposite face, the electric field E→2 is also uniform over the entire face and is directed into that face (as shown in figure). The two faces in question are inclined [...]
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E→1 and E→2(both horizontal) have magnitudes of 2.50×104NC−1 and 7.00 × 10^4 N/C. respectively. Assuming that no other electric field lines cross the surfaces of the parallel lopiped ,
the electric field E→2 is also uniform over the entire face and is directed into that face (as shown in figure). The two faces in question are inclined at 30∘ from the horizontal ,
The electric field E1 at one face of a parallelopiped is uniform over the entire face and is directed out of the face. At the opposite face ,
the net charge contained with in is ,
Three simple harmonic motions in the same direction, each of amplitude ‘a’ and periodic time ‘T’, are superposed. The first and second, and the second and third differ in phase
31
Oct
Three simple harmonic motions in the same direction, each of amplitude ‘a’ and periodic time ‘T’, are superposed. The first and second, and the second and third differ in phase and the second and third differ in phase are superposed. The first and second each of amplitude 'a' and periodic time 'T' Three simple harmonic [...]
A spring of spring constant k stores 5 J of energy when stretched by 25 cm. It is kept vertical with one end fixed. A mass m is attached to the other end. It makes 5 oscillations
31
Oct
A spring of spring constant k stores 5 J of energy when stretched by 25 cm. It is kept vertical with one end fixed. A mass m is attached to the other end. It makes 5 oscillations A spring of spring constant k stores 5 J of energy when stretched by 25 cm. It is [...]
Flux passing through the shaded surface of a sphere when a point charge q is placed at the centre is ( radius of the sphere is R )
31
Oct
Flux passing through the shaded surface of a sphere when a point charge q is placed at the centre is ( radius of the sphere is R ) Flux passing through the shaded surface of a sphere when a point charge q is placed at the centre is ( radius of the sphere is R [...]
A mass of 0.2 kg is attached to the lower end of a massless spring of force constant 200 N/m, the upper end of which is fixed to a rigid support. Study the following statements.
31
Oct
A mass of 0.2 kg is attached to the lower end of a massless spring of force constant 200 N/m, the upper end of which is fixed to a rigid support. Study the following statements. A mass of 0.2 kg is attached to the lower end of a massless spring of force constant 200 N/m [...]
A cylindrical block of density d stays fully immersed in a beaker filled with two immiscible liquids of different densities d1 and d2. The block is in equilibrium with half of it in
31
Oct
A cylindrical block of density d stays fully immersed in a beaker filled with two immiscible liquids of different densities d1 and d2. The block is in equilibrium with half of it in A cylindrical block of density d stays fully immersed in a beaker filled with two immiscible liquids of different densities d1 and [...]
A block of mass m is suspended by a rubber cord of natural length l = mg/k, where k is force constant of the cord. The block is lifted upwards so that the cord becomes just tight
31
Oct
A block of mass m is suspended by a rubber cord of natural length l = mg/k, where k is force constant of the cord. The block is lifted upwards so that the cord becomes just tight A block of mass m is suspended by a rubber cord of natural length l = mg/k where [...]
Two nonconducting infinite planes sheets having charges Q and 2 Q are placed parallel to each other as shown in figure. The charge distribution on the four faces of the two plates is also shown. The electric field intensities at three points 1, 2, and 3 are E→1,E→2,andE→3, respectively. Then the magnitudes of E→1,E 2, and E 3 are, respectively (surface area of plates ) :
31
Oct
Two nonconducting infinite planes sheets having charges Q and 2 Q are placed parallel to each other as shown in figure. The charge distribution on the four faces of the two plates is also shown. The electric field intensities at three points 1, 2, and 3 are E→1,E→2,andE→3, respectively. Then the magnitudes of E→1,E 2, [...]