Class 12th

The intermolecular potential energy for the molecules A, B, C and D given below suggest that:

Find the binding energy per neucleon for ¹²⁰₅₀Sn. Mass of proton mₚ = (A)1.00783U, mass of neutron mₙ = (A)1.00867U and mass of tin nucleus msn = 119.902199U. (take 1U = 931MeV)

For a plane electromagnetic wave, the magnetic field at a point x and time t is B(x, t) = [1.2 * 10?sin(0.5 * 10³x + 1.5 * 10¹¹t)k]T
The instantaneous electric field E corresponding to B is: (speed of light c = 3 * 10? ms?¹)

Two identical electric point dipoles have dipole moments p₁ = pî and p₂ = −pî and are held on the x axis at distance ' a ' from each other. When released, they move along the x-axis with the direction of their dipole moments remaining unchanged. If the mass of each dipole is 'm', their speed when they are infinitely far apart is:

In photoelectric effect experiment, the graph of stopping potential V versus reciprocal of wavelength obtained is shown in the figure. As the intensity of incident radiation is increased:

A charged particle going around in a circle can be considered to be a current loop. A particle of mass m carrying charge q is moving in a plane with speed v under the influence of magnetic field B. The magnetic moment of this moving particle:

A capacitor C is fully charged with voltage V?. After disconnecting the voltage source, it is connected in parallel with another uncharged capacitor of capacitance C/2. The energy loss in the process after the charge is distributed between the two capacitor is:

In the figure shown, the current in the 10 V battery is close to:

[P] on treatment with Br2/FeBr3 in CCl4 produced a single isomer C8H7O2Br while heating [P] with sodalime gave toluene. The compound [P] is:

The pair in which both the species have the same magnetic moment (spin only) is: