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Given L1 = 1 mH, R1 = 1 ohm, L2 = 2 mH, R2 = 2 ohm Neglecting mutual inductance , the time constant ( in ms ) for circuits ( i) , (ii ) and (iii) are (ii ) and (iii) are Given L1 = 1 mH L2 = 2 mH R1 = 1 [...]

In amplitude modulation, sinusoidal carrier frequency used is denoted by omega c and the signal frequency is denoted by omega m. The bandwidth (delta omega m) of the signal In amplitude modulation sinusoidal carrier frequency used is denoted by omega c and the signal frequency is denoted by omega m. The bandwidth (delta omega m) [...]

In figure switch S is closed for a long time . At t = 0 , if it is opened , then if it is opened In figure switch S is closed for a long time . At t = 0 then October 23, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP [...]

A radar has a power of 1kW and is operating at a frequency of 10 GHz. It is located on a mountain top of height 500 m. The maximum distance upto which it can detect object A radar has a power of 1kW and is operating at a frequency of 10 GHz. It is located [...]

The frequency of oscillation of current in the inductance is (1) 1 / 3 root LC (2) 1/6 pie root LC The frequency of oscillation of current in the inductance is (1) 1 / 3 root LC (2) 1/6 pie root LC October 23, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP [...]

Statement 1: Sky wave signals are used for long distance radio communication. These signals are in general, less table than ground wave signals. Statement 2 : The state of ionosphere less table than ground wave signals. Statement 2 : The state of ionosphere Statement 1: Sky wave signals are used for long distance radio communication. [...]

If a ladder weighing 250 N is placed against a smooth vertical wall having coefficient of friction 0.3, then what is the maximum force of friction available at the point of contact between the ladder and the floor? If a ladder weighing 250 N is placed against a smooth vertical wall having coefficient of friction [...]

A uniform horizontal meter scale of mass m is suspended by two vertical strings attached to its two ends. A block of mass 3m is placed on the 60cm mark. The tensions in the two strings are in the ratio The angle turned by a body undergoing circular motion depends on time as θ=θ0+θ1t+θ2r^2. Then [...]

Two men p and q are carrying a uniform rod of length l on their shoulders the rod is held horizontally such that p get one-third load. If P is at one end of the rod the distance of Q from that end is Two men p and q are carrying a uniform rod of [...]

A circular disc A of radius r is made from an iron plate of thickness t and another circular disc B of radius 4r is made from an iron plate of thickness t/4. Equal torques act on the discs A and B, initially both being at rest. At a later instant, the linear speeds of [...]