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

The polarising ability of which one of the following is highest (a) Small highly +ve ion (b) Large +ve ion (c) Small highly -ve ion (d) Large -ve ion The polarising ability of which one of the following is highest (a) Small highly +ve ion (b) Large +ve ion (c) Small highly -ve ion (d) [...]

Pauling’s equation for determining the electronegativity of an element is XA – XB = 0.208 root delta (b) XA + XB = 0.208 root delta Pauling's equation for determining the electronegativity of an element is XA - XB = 0.208 root delta (b) XA + XB = 0.208 root delta November 10, 2020 Category: Uncategorised [...]

Among Al2o3, SiO2, P2O3 and SO2 the correct order of acid strength is (a) Al2O2 < SiO2 < SO2 < P2O3 (b) SiO2 < SO2 < Al2O3 < P2O3 Among Al2o3 P2O3 and SO2 the correct order of acid strength is (a) Al2O2 < SiO2 < SO2 < P2O3 (b) SiO2 < SO2 < Al2O3 [...]

A coil of wire has a resistance of 25 .00 ohm at 20 degree C and a resistance of 25.17 ohm at 35 degree C . what is its temperature coefficient of resistance ? A coil of wire has a resistance of 25 .00 ohm at 20 degree C and a resistance of 25.17 ohm [...]

A metal wire of diameter 2 mm and of length 300 m has a resistance of 1.6424 ohm at 20 degree and 2..415 ohm at 150 degree at 150 degree . Find the values of alpha , R0 and rho0, where the zero subscript refers to 0 degree C , and rho 20 degree c. [...]

What is the drift speed of the conduction electrons in a coopper wire with radius r 900 um when it has a uniform current I = 17mA? Assume that each copper atom contributes one conduction electron to the current and the current density is uniform across the wire’s cross section. How many electrons per second [...]

The solubilities of carbonates decreases down the magnesium group due to a decrease in (a) Lattice energies of solids (b) Hydration energies of cations (c) Inter-ionic attraction The solubilities of carbonates decreases down the magnesium group due to a decrease in (a) Lattice energies of solids (b) Hydration energies of cations (c) Inter-ionic attraction November [...]

Which of the following is a false statement (a) Fluorine is more electronegative than chlorine (b) Nitrogen has greater IE1 than oxygen (c) Lithium is amphoteric Which of the following is a false statement (a) Fluorine is more electronegative than chlorine (b) Nitrogen has greater IE1 than oxygen (c) Lithium is amphoteric November 10, 2020 [...]

The most polar bond is (a) O-F (b) N-Cl (c) N-F (d) N-N The most polar bond is (a) O-F (b) N-Cl (c) N-F (d) N-N November 10, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

1 (a) a steady current flows in a metallic conductor of non- uniform cross section . state which of the quantites i.e. current , current density , electric field , and drift velocity remain constant ? (b) A steady current passes through a cylindrical . Is there an electric field inside the conductor ? 1 [...]