B
Two semicircular rings lying in same plane, of uniform linear charge density `lambda` have radius r and 2r. They are joined using two straight uniformly charged wires of linear charge density `lambda` and length r as shown in figure. The magnitude of electric field at common centre of semi circular rings is –
15
Sep
Two semicircular rings lying in same plane, of uniform linear charge density `lambda` have radius r and 2r. They are joined using two straight uniformly charged wires of linear charge density `lambda` and length r as shown in figure. The magnitude of electric field at common centre of semi circular rings is – 2q 3q [...]
If the percentage errors of A, B, and C are a, b, and c, respectively, then the total percentage error in the product ABC is
15
Sep
If the percentage errors of A, B, and C are a, b, and c, respectively, then the total percentage error in the product ABC is and C and C are a B If the percentage errors of A respectively then the total percentage error in the product ABC is September 15, 2020 Category: Uncategorised (JEE [...]
Charges q, 2q , 3q and 4q are placed at the corner A, B, C and D of a square as shown in the fig, The direction of electric field at the centre of the square is along
15
Sep
Charges q, 2q , 3q and 4q are placed at the corner A, B, C and D of a square as shown in the fig, The direction of electric field at the centre of the square is along 2q 3q and 4q are placed at the corner A B C and D of a square [...]
Four similar (+q) are placed at origin O, B, C and D as shown. The angles are as shown. Charges at B, C and D are equidistant from O at a distance of a. The forces of repulsion experienced by charge at O due to charges at B and D along CO are equal, given by q^2 root 3 /8πε 0 a^2. Find the relation between θ1, θ2 and θ3:
15
Sep
Four similar (+q) are placed at origin O, B, C and D as shown. The angles are as shown. Charges at B, C and D are equidistant from O at a distance of a. The forces of repulsion experienced by charge at O due to charges at B and D along CO are equal, given [...]
Tags:
B ,
C and D are equidistant from O at a distance of a. The forces of repulsion experienced by charge at O due to charges at B and D along CO are equal ,
C and D as shown. The angles are as shown. Charges at B ,
Four similar (+q) are placed at origin O ,
given by q^2 root 3 /8πε 0 a^2. Find the relation between θ1 ,
θ2 and θ3: ,
Equal charges Q are placed at the four corners A, B, C, D of a square of length a. The magnitude of the force on the charge at B will be
15
Sep
Equal charges Q are placed at the four corners A, B, C, D of a square of length a. The magnitude of the force on the charge at B will be B C D of a square of length a. The magnitude of the force on the charge at B will be Equal charges Q [...]
A physical quantity x depends on quantities y and z as follows: x = Ay + B tan (Cz), where A, B, and C are constants. Which of the following do not have the same dimensions?
14
Sep
A physical quantity x depends on quantities y and z as follows: x = Ay + B tan (Cz), where A, B, and C are constants. Which of the following do not have the same dimensions? A physical quantity x depends on quantities y and z as follows: x = Ay + B tan (Cz) [...]
A physical quantity P is given by P = A^3B^1/2 / c^-4D^3/2. Which quantity among A, B, C, and D brings in the maximum percentage error in P?
14
Sep
A physical quantity P is given by P = A^3B^1/2 / c^-4D^3/2. Which quantity among A, B, C, and D brings in the maximum percentage error in P? A physical quantity P is given by P = A^3B^1/2 / c^-4D^3/2. Which quantity among A and D brings in the maximum percentage error in P? B [...]
A single electron orbit around a stationary nucleus of charge +Ze where Z is a constant and e is the magnitude of the electronic charge. It requires47.2eV to excite the electron from the second bohr orbit to the third bohr orbit. Find The value of Z.
14
Sep
A single electron orbit around a stationary nucleus of charge +Ze where Z is a constant and e is the magnitude of the electronic charge. It requires47.2eV to excite the electron from the second bohr orbit to the third bohr orbit. Find The value of Z. B B to A and C to A respectively [...]
The figure indicates the enegry level diagram of an atom and the origin of six spectral lines in emission (e.g. line no.5 series from the transition from level B to A). The following spectral lines will also occur in the absorption spectrum
14
Sep
The figure indicates the enegry level diagram of an atom and the origin of six spectral lines in emission (e.g. line no.5 series from the transition from level B to A). The following spectral lines will also occur in the absorption spectrum B B to A and C to A respectively C of a certain [...]
Figure shows the enegry levels P,Q,R,S and G of an atom where G is the ground state. A red line in the emission spectrum of the atom can be obtaned by an energy level change from Q so S. A blue line can be obtained by following energy level change
14
Sep
Figure shows the enegry levels P,Q,R,S and G of an atom where G is the ground state. A red line in the emission spectrum of the atom can be obtaned by an energy level change from Q so S. A blue line can be obtained by following energy level change -q B B to A [...]
Tags:
-q ,
B ,
B to A and C to A respectively ,
C of a certain atom corresponding to increasing values of energy i.e. ,
EA<EB<EC. If λ1 ,
Energy levels A ,
Figure shows the enegry levels P ,
R ,
which of the following statements is correct? ,
λ2 ,
λ3 are the wavelengths of radiations correspnding to the transitions C to B ,