Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
A concave mirror of focal length 10 cm and a point object both are moving away from each other with velocities 1 ms^-1 and 10 ms^-1 respectively as shown in figure. Find the velocity of
08
Sep
A concave mirror of focal length 10 cm and a point object both are moving away from each other with velocities 1 ms^-1 and 10 ms^-1 respectively as shown in figure. Find the velocity of A concave mirror of focal length 10 cm and a point object both are moving away from each other with [...]
In figure, AB is the principal axis of the concave mirror. A point object moves on the line PQ which makes small angle theta with the principal axis. Show that image also moves in
08
Sep
In figure, AB is the principal axis of the concave mirror. A point object moves on the line PQ which makes small angle theta with the principal axis. Show that image also moves in AB is the principal axis of the concave mirror. A point object moves on the line PQ which makes small angle [...]
Figure shows a toroidal solenoid whose cross-section is rectangular in shape. Find the magnetic flux through this cross-section if the current through the toroidal winding is I, total number of turns in winding is N, the inside and outside radii of the toroid are a and b respectively and the height of toroid is equal to h.
08
Sep
Figure shows a toroidal solenoid whose cross-section is rectangular in shape. Find the magnetic flux through this cross-section if the current through the toroidal winding is I, total number of turns in winding is N, the inside and outside radii of the toroid are a and b respectively and the height of toroid is equal [...]
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Figure shows a toroidal solenoid whose cross-section is rectangular in shape. Find the magnetic flux through this cross-section if the current through the toroidal winding is I ,
the inside and outside radii of the toroid are a and b respectively and the height of toroid is equal to h. ,
total number of turns in winding is N ,
A concave mirror and a convex mirror of focal lengths 15 cm and 30 cm are placed at a distance of 75 cm. An object of height 3 cm is placed at a distance of 20 cm from the concave mirror. First ray is incident
08
Sep
A concave mirror and a convex mirror of focal lengths 15 cm and 30 cm are placed at a distance of 75 cm. An object of height 3 cm is placed at a distance of 20 cm from the concave mirror. First ray is incident A vertically erect object placed on the optic axis at [...]
Two concave mirrors are placed 40 cm apart and are facing each other. A point object lies between them at a distance of 12 cm from the mirror of focal length 10 cm. The other mirror has a focal length of 15
08
Sep
Two concave mirrors are placed 40 cm apart and are facing each other. A point object lies between them at a distance of 12 cm from the mirror of focal length 10 cm. The other mirror has a focal length of 15 A vertically erect object placed on the optic axis at a distance (5/2)f [...]
A metal rod OA of mass ‘m’ and length ‘r’ is kept rotating with a constant angular speed ω in a vertical plane about a horizontal axis at the end O. The free end A is arranged to slide without friction along fixed conduction circular ring in the same plane as that of rotation. A uniform and constant magnetic induction B→ is applied perpendicular and into the plane of rotation as shown in the figure below. An inductor L and an external resistance R are connected through a swithch S between the point O and a point C on the ring to form an electrical circuit. Neglect the resistance of the ring and the rod. Initially, the switch is open. (a) What is the induced emf across the teminal of the switch? (b) The switch S is closed at time t=0. (i) Obtain an expression for the current as a function of time. (ii) In the steady state, obtin the time dependence of the torque required to maintain the constant angular speed, given that the rod OA was along the positive X-axis at t=0
08
Sep
A metal rod OA of mass ‘m’ and length ‘r’ is kept rotating with a constant angular speed ω in a vertical plane about a horizontal axis at the end O. The free end A is arranged to slide without friction along fixed conduction circular ring in the same plane as that of rotation. A [...]
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a or b ,
c or d ,
E = 120 V ,
In the circuit shown in fig ,
In the circuit shown in Figure ,
Initially the 900μF capacitor is charged to 100 V and the 100μF capacitor is uncharged in Fig. Then switch S2 is closed for time t1 ,
is at higher potential? (c) What is the potential difference Vcd across the inductor L? (d) Which point ,
is at steady state. if R1 = R2= R3 =R and the current through each resistor is i. Find the currents through the resistors immediately after the switch S is opened. ,
R1 = 30.0 Ω ,
R2 =50.0Ω and L = 0.200 H. Switch S is closed at t=0. Just after the switch is closed.(a) What is the potential difference Vab across the inductor R1? (b) Which point ,
A vertically erect object placed on the optic axis at a distance (5/2)f from a concave mirror of focal length f as shown in the figure. If a plane mirror is placed perpendicular to
08
Sep
A vertically erect object placed on the optic axis at a distance (5/2)f from a concave mirror of focal length f as shown in the figure. If a plane mirror is placed perpendicular to A vertically erect object placed on the optic axis at a distance (5/2)f from a concave mirror of focal length f [...]
A Circuit containing a two person switch S is shown in figure. (a) Switch S is in the position 1. Find the potential difference Va- Vb and the rate of production of heat in R1. b. If now the switch S is put in position 2 at t=0. Find ltbRrgt i steady current in R4 and ii hte time when current in R4 is half the steady value. Also calculate the energy stored in the inductor L at that time.
08
Sep
A Circuit containing a two person switch S is shown in figure. (a) Switch S is in the position 1. Find the potential difference Va- Vb and the rate of production of heat in R1. b. If now the switch S is put in position 2 at t=0. Find ltbRrgt i steady current in R4 [...]
Tags:
a or b ,
c or d ,
E = 120 V ,
In the circuit shown in fig ,
In the circuit shown in Figure ,
Initially the 900μF capacitor is charged to 100 V and the 100μF capacitor is uncharged in Fig. Then switch S2 is closed for time t1 ,
is at higher potential? (c) What is the potential difference Vcd across the inductor L? (d) Which point ,
is at steady state. if R1 = R2= R3 =R and the current through each resistor is i. Find the currents through the resistors immediately after the switch S is opened. ,
R1 = 30.0 Ω ,
R2 =50.0Ω and L = 0.200 H. Switch S is closed at t=0. Just after the switch is closed.(a) What is the potential difference Vab across the inductor R1? (b) Which point ,
The positions of optical axis X1X2 of a spherical mirror, the source and the image are known (as shown in figure). Find by construction the positions of the centre of the mirror, its focus, and the pole for the cases
08
Sep
The positions of optical axis X1X2 of a spherical mirror, the source and the image are known (as shown in figure). Find by construction the positions of the centre of the mirror, its focus, and the pole for the cases and the pole for the cases its focus The positions of optical axis X1X2 of [...]
A plane mirror is placed at a distance of 50 cm from a concave mirror of focal length 16 cm. Where should a short object be placed between the mirrors and facing both the mirrors so that its virtual image
08
Sep
A plane mirror is placed at a distance of 50 cm from a concave mirror of focal length 16 cm. Where should a short object be placed between the mirrors and facing both the mirrors so that its virtual image A U-shaped wire is placed before a concave mirror having radius of curvature 20 cm [...]