Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)

A hallow cylinder of length l has inner and outer radius a and b respectively. If the resistivity of material of the cylinder is p. Then find the resistance of the cylinder. i)across its ends (across M and N ) ii)across its inner and outer surface (across P and Q ). L1 and L2 are [...]

Figure shows a vessel partitioned by a fixed diathermic separator. Different ideal gases are filled in the two parts. The rms speed of the molecules in the left part equals the mean speed of the molecules in the right part. Calculate the ratio of the mass of a molecule in the left part to the [...]

The molecules of a given mass of a gas having r.m.s velocity of 100m/s at 27C and 1.0 atmospheric pressure What will be the root mean square speeds of the molecules of the gas at 127C and 2 atmospheric pressure? Two molecules of gas have speeds of 9×10^6m/s and 1×10^6m/s respectively. What is the root [...]

The voltage-current graphs for two resistor of the same material and the same radius with lengths, L1 and L2 are shown in fig 5.2. if L1>L2, state with reason which of these graphs represents voltage- current change of L1. L1 and L2 are shown in fig 5.2. if L1>L2 state with reason which of these [...]

Two molecules of gas have speeds of 9×10^6m/s and 1×10^6m/s respectively. What is the root mean square speed of these molecules? Two molecules of gas have speeds of 9×10^6m/s and 1×10^6m/s respectively. What is the root mean square speed of these molecules? September 2, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP [...]

The wire is stretched t increase the length by 1%. Find the percentage change in the resistance. The wire is stretched t increase the length by 1%. Find the percentage change in the resistance. September 2, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

If a wire is stretched to double its length, find the new resistance if the original resistance of the wire was R. find the new resistance if the original resistance of the wire was R. If a wire is stretched to double its length September 2, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]

In a period of 1.00 , 5×10^23 nitrogen molecules strike a wall with an area of 8.00cm^2. Assume the molecules move with a speed of 300m/s and strike the wall head-on in elastic collisions. What is the pressure exerted on the Calculate the number of atoms in 39.4 g gold. Molar mass of gold is [...]

The arrangement of parallel conducting plates shown in are of the same surface area A=10cm2. A battery of E=10V is connected across the kends A and B. Plate 2 is slowly moved upward by some external force. find the position of plate at which the energy stored in the system is minimum. Also, find this [...]

Calculate the number of atoms in 39.4 g gold. Molar mass of gold is 197 g mole^-1 Calculate the number of atoms in 39.4 g gold. Molar mass of gold is 197 g mole^-1 September 2, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,