A protein molecule's diameter is measured as 42 Å using X-ray diffraction. If another measurement instrument gives the diameter in picometers (pm), and the ratio of the two measurements is $\frac{x}{10}$, what is the value of $x$?

R,L and C represent the physical quantities resistance, inductance and capacitance respectively. Which one of the following combination has dimension of frequency?

R,L and C represent the physical quantities resistance, inductance and capacitance respectively. Which one of the following combination has dimension of frequency?

Dimensions of CR are those of

Dimension of R is

$\left[ {{\rm{M}}{{\rm{L}}^2}{{\rm{T}}^{ - 3}}{{\rm{A}}^{ - 2}}} \right]$ is the dimensional formula of

The dimensions of $\frac{R}{L}$ are

[here, R=electric resistance, L=self inductance]

The dimensions of resistance are same as those of ………. Where h is the Planck’s constant and e is the charge.

The dimension of quantity (L/RCV) is

$M{L^3}{T^{ - 1}}{Q^{ - 2}}$ is dimensions of

If C,R,L and I denote capacity, resistance, inductance and electric current respectively, the quantities having the same dimensions of time are $\left( 1 \right)\,CR,\,\,\left( 2 \right)\,\frac{L}{R}\,,\,\,\left( 3 \right)\,\sqrt {LC} \,\,\left( 4 \right)\,L{I^2}$