Physics Test-24...

Which is not a non-electrolyte?

Isotopes of an element contains

Direction: Choose the correct answer from alternatives given.

If \(\overrightarrow{{E}}\) and \(\overrightarrow{{B}}\) represent electric and magnetic field vectors of an electromagnetic wave, the direction of propagation of the wave is along.

If the force is given by F = at + bt² with t as time. The dimensions of a and b are:

Two cells of emf's \(1.25 \mathrm{~V}\) and \(0.75 \mathrm{~V}\) having equal internal resistance are connected in parallel. The effective emf is:

\(\mathrm{Al}^{3+}(\mathrm{aq})+3 \mathrm{e}^{-} \rightarrow \mathrm{Al}(\mathrm{s}) ; \mathrm{E}^{\circ}=-1.66 \mathrm{~V}\)

\(\mathrm{Cu}^{2+}(\mathrm{aq})+2 \mathrm{e}^{-} \rightarrow \mathrm{Cu}(\mathrm{s}) ; \mathrm{E}^{\circ}=+0.34 \mathrm{~V}\)

What voltage is produced under standard conditions by combining the half-reaction with these standard electrode potentials?

Four identical particles of mass \(M\) are located at the corners of a square of side '\(a\)'. What should be their speed if each of them revolves under the influence of others' gravitational field in a circular orbit circumscribing the square?

Two wires of same dimensions but different resistivities \(\rho_1\) and \(\rho_2\) are connected in series. The equivalent resistivity of the combination is:

A particle when thrown moves such that it passes from the same height at \(2 {~s}\) and \(10 {~s}\), the height is:

The amount of radiation mainly depends upon the: