Can the dispersive power `omega=(mu_v-mu_r)/(mu-1)` be negative? What is the sign of `omega` if a holow prism is immersed into water?

What can be said from fs lt mu_(s) N ?

Sea water at frequency v=4xx10^(8) Hz has permittivity in ~~ 80 in_(0) , permeability mu = mu_(0) and resistivity rho = 0.25 Omega , Imagine a parallel plate capacitor immersed in sea water and driven by an alternating voltage source V(t)=V_(0)sin 2pi vt . What fraction of the conduction current density is the displacement current current density ?

Negative sign in W = -mgh denotes what ?

A cylinderical container of length L is full to the brim with a liquid which has mass density rho . It is placed on a weight scale, the scale reading is w. A light wall ball which would float on the liquid if allowed to do so, of volume V and mass m is pushed gently down and held beneath the surface of the liquid with a rigid rod of negligible volume as shown on the left Q. What is the reading of the scale when the ball is fully immersed (a). w-rhoVg (b). w (c). w+mg-rhoVg (d). none of these

A thermocouple of negligible resistance produces an emf fo 40 mu V//^(@)C in the linear range of temperature. A galvanometer of resistance 10 Omega whose sensitivity is 1 mu A//div is employed with the thermocouple. The smallest value of temperature difference that can be detected by the system will

A thermocouple of negligible resistance produces an emf fo 40 mu V//^(@)C in the linear range of temperature. A galvanometer of resistance 10 Omega whose sensitivity is 1 mu A//div is employed with the thermocouple. The smallest value of temperature difference that can be detected by the system will

An inductor of reactance 1 Omega and a resistor of 2 Omega are connected in series to the terminals of a 6 V (rms) a.c. source. The power dissipated in the circuit is

At 4^(@)C, 0.98 of the volume of a body is immersed in water. The temperature at which the entire body gets immersed in water is (neglect the expansion of the body ) ( gamma_(w) = 3.3 xx10 ^(-4)K^(-1) ):-

A beaker contains water up to a height h_(1) and kerosene of height h_(2) above water so that the total height of (water + kerosene) is (h_(1) + h_(2)) . Refractive index of water is mu_(1) and that of kerosene is mu_(2) . The apparent shift in the position of the bottom of the beaker when viewed from above is :-