KVPY Government Jobs Exams

The following travelling electromagnetic wave
Ex = 0, Ey = E0sin(kx + ωt), Ez = –2E0sin(kx – ωt) is-
(A) elliptically polarized (B) circularly polarized
(C) linearly polarized (D) unpolarized

Read Solution (Total 0)

KVPY Other Question

A charge +q is placed somewhere inside the cavity of a thick conducting spherical shell of inner radius R1
and outer radius R2. A charge – Q is placed at a distance r > R2 from the centre of the shell. Then the electric
field in the hollow cavity-
(A) depends on both +q and – Q (B) is zero
(C) is only that due to – Q (D) is only that due to +q A point source of light is placed at the bottom of a vessel which is filled with water of refractive index μ to a
height h. If a floating opaque disc has to be placed exactly above it so that the source is invisible from above,
the radius of the disc should be-