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A cubical block of ice of mass m and edge L is placed in a large tray of mass M. If the ice melts, by what distance the centre of mass of the system ”ice plus tray” descend ?
22
Oct
A cubical block of ice of mass m and edge L is placed in a large tray of mass M. If the ice melts, by what distance the centre of mass of the system ”ice plus tray” descend ? A cubical block of ice of mass m and edge L is placed in a large [...]
In a diode AM-detector, the output circuit consist of R = 1 k ohm and C = 10 pF. A carrier signal of 100 kHz is to be detected. Is it good ?
22
Oct
In a diode AM-detector, the output circuit consist of R = 1 k ohm and C = 10 pF. A carrier signal of 100 kHz is to be detected. Is it good ? In a diode AM-detector the output circuit consist of R = 1 k ohm and C = 10 pF. A carrier signal [...]
The mass per unit length of a non – uniform rod of length L is given μ=λx^2 , where λ is a constant and x is distance from one end of the rod. The distance of the center of mas of rod from this end is
22
Oct
The mass per unit length of a non – uniform rod of length L is given μ=λx^2 , where λ is a constant and x is distance from one end of the rod. The distance of the center of mas of rod from this end is The mass per unit length of a non - [...]
A sky wave with a frequency 55 MHz is incident on D-region of earth’s atmosphere at 45. The angle of refraction is (electron density for D-region is 400 electron/cm^3)
22
Oct
A sky wave with a frequency 55 MHz is incident on D-region of earth’s atmosphere at 45. The angle of refraction is (electron density for D-region is 400 electron/cm^3) A sky wave with a frequency 55 MHz is incident on D-region of earth's atmosphere at 45. The angle of refraction is (electron density for D-region [...]
Which of the following is true for center of mass ? (i) The center of mass of a body may lie within , outside , on the surface of the body. (ii) In the case of symmetrical bodies , the center of mass coincides with the geometrical center of the body. (iii) In the absence of external forces , the center of mass moves with constant velocity. (iv) If external forces are absent and system is initially at rest, then location of center of mass is fixed.
22
Oct
Which of the following is true for center of mass ? (i) The center of mass of a body may lie within , outside , on the surface of the body. (ii) In the case of symmetrical bodies , the center of mass coincides with the geometrical center of the body. (iii) In the absence [...]
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on the surface of the body. (ii) In the case of symmetrical bodies ,
outside ,
the center of mass coincides with the geometrical center of the body. (iii) In the absence of external forces ,
the center of mass moves with constant velocity. (iv) If external forces are absent and system is initially at rest ,
then location of center of mass is fixed. ,
Which of the following is true for center of mass ? (i) The center of mass of a body may lie within ,
In the circuit shows Fig the coil has inductance and resistance. When X is joined to Y, the time constant is t during the growth of current. When the steady state is reached, heat is produced in the coil at a rate P. X is now joined to Z. After joining X and Z:
22
Oct
In the circuit shows Fig the coil has inductance and resistance. When X is joined to Y, the time constant is t during the growth of current. When the steady state is reached, heat is produced in the coil at a rate P. X is now joined to Z. After joining X and Z: heat [...]
In the circuit shown, the cell is deal. The coil has an inductance of 4 H and zero resistance. F is a fuse of zero resistance and will blow when the current through it reaches 5 A. The switch is closed at t = 0. The fuse will blow:
22
Oct
In the circuit shown, the cell is deal. The coil has an inductance of 4 H and zero resistance. F is a fuse of zero resistance and will blow when the current through it reaches 5 A. The switch is closed at t = 0. The fuse will blow: A horizontal ring of radius r [...]
In the following electrical network at t = <0 Fig key is placed on (1) till the capacitor got fully charged. Key is placed on (2) at t = 0. Time when the energy in both the same for the time is
22
Oct
In the following electrical network at t = <0 Fig key is placed on (1) till the capacitor got fully charged. Key is placed on (2) at t = 0. Time when the energy in both the same for the time is In the following electrical network at t = <0 Fig key is placed [...]
The reading of the ammeter for a silicon diode in the given circuit is
22
Oct
The reading of the ammeter for a silicon diode in the given circuit is The reading of the ammeter for a silicon diode in the given circuit is October 22, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
In a common emitter amplifier circuit using an n-p-n transistor, the phase difference between the input and the output voltages will be
22
Oct
In a common emitter amplifier circuit using an n-p-n transistor, the phase difference between the input and the output voltages will be In a common emitter amplifier circuit using an n-p-n transistor the phase difference between the input and the output voltages will be October 22, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]