Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
Show that for a light ray incident at an angle i on getting reflected the angle of deviation is delta = pie – 2i or pir + 2i.
08
Sep
Show that for a light ray incident at an angle i on getting reflected the angle of deviation is delta = pie – 2i or pir + 2i. Show that for a light ray incident at an angle i on getting reflected the angle of deviation is delta = pie - 2i or pir + [...]
A light ray is incident on a plane mirror at an angle of 30 with the horizontal. At what angle with horizontal must a plane mirror be placed in its path so that it becomes vertically upwards after reflection?
08
Sep
A light ray is incident on a plane mirror at an angle of 30 with the horizontal. At what angle with horizontal must a plane mirror be placed in its path so that it becomes vertically upwards after reflection? A woman is standing in front of a plane mirror. What is the minimum mirror height [...]
In the circuit shown in figure, the initial current through the inductor at t =0 is Io. After a time t = L/R, the switch is quickly shifted to position 2. plot a graph dhowing the variation of current with time. (b) calculate the value of current in the indicator at t = 3/2 L/R.
08
Sep
In the circuit shown in figure, the initial current through the inductor at t =0 is Io. After a time t = L/R, the switch is quickly shifted to position 2. plot a graph dhowing the variation of current with time. (b) calculate the value of current in the indicator at t = 3/2 L/R. [...]
A woman is standing in front of a plane mirror. What is the minimum mirror height that is necessary for her to see her full image.
08
Sep
A woman is standing in front of a plane mirror. What is the minimum mirror height that is necessary for her to see her full image. A woman is standing in front of a plane mirror. What is the minimum mirror height that is necessary for her to see her full image. September 8, 2020 [...]
An observer standing on a railway crossing receives frequencies 2.2 kHz and 1.8 kHz when the train approaches and recedes from the observer. Find the velocity of the train
08
Sep
An observer standing on a railway crossing receives frequencies 2.2 kHz and 1.8 kHz when the train approaches and recedes from the observer. Find the velocity of the train An observer standing on a railway crossing receives frequencies 2.2 kHz and 1.8 kHz when the train approaches and recedes from the observer. Find the velocity [...]
In an LR circuit as shown in figure, when the switch is closed, how much time will it take for the current to grow to a value n times the maximum value of current (where n<1)?
08
Sep
In an LR circuit as shown in figure, when the switch is closed, how much time will it take for the current to grow to a value n times the maximum value of current (where n<1)? how much time will it take for the current to grow to a value n times the maximum value [...]
The circuit shown in fig is in steady state. bat certain instant the switch is closed ,immediately after the switch S is closed. Find (i) potential difference across the inductor coil (ii) the rate of change of current through the inductor coil (iii) potential difference across the resistance
08
Sep
The circuit shown in fig is in steady state. bat certain instant the switch is closed ,immediately after the switch S is closed. Find (i) potential difference across the inductor coil (ii) the rate of change of current through the inductor coil (iii) potential difference across the resistance di/dt = -0.040 A/s. (a) Find the [...]
Tags:
di/dt = -0.040 A/s. (a) Find the magnitude of the self induced emf. (b) which end of the inductor ,
is at a higher potential? ,
M or N ,
The circuit shown in fig is in steady state. bat certain instant the switch is closed ,
The current in inductor shown in figure is flowing from right to left. The inductor has inductance 75 H and current in it is decreasing at a uniform rate ,
Two large plane mirrors MM1 and MM2 are arranged at 150 as shown in the figure. O is a point object and AB is a long line perpendicular to the line OP. Find the length of the part of the line AB
08
Sep
Two large plane mirrors MM1 and MM2 are arranged at 150 as shown in the figure. O is a point object and AB is a long line perpendicular to the line OP. Find the length of the part of the line AB Two large plane mirrors MM1 and MM2 are arranged at 150 as shown [...]
A point object O is kept in front of a plane mirror MM’. The line Mop makes an angle theta = 60 with the mirror. An observer is walking along the line APB (perpendicular to MOP. Find the length of his path along APB
08
Sep
A point object O is kept in front of a plane mirror MM’. The line Mop makes an angle theta = 60 with the mirror. An observer is walking along the line APB (perpendicular to MOP. Find the length of his path along APB A woman is standing in front of a plane mirror. What [...]
Find the self- inductance L of the coil whose resistance R= 2 ohm, a current i = 1.5 amp, which is increasing at a rate of 10^3 amp/s.
08
Sep
Find the self- inductance L of the coil whose resistance R= 2 ohm, a current i = 1.5 amp, which is increasing at a rate of 10^3 amp/s. a current i = 1.5 amp Find the self- inductance L of the coil whose resistance R= 2 ohm which is increasing at a rate of 10^3 [...]