MCQ
A micron is related to centimetre as
  • A
    $1\,micron = {10^{ - 8}}cm$
  • B
    $1\,micron = {10^{ - 6}}cm$
  • C
    $1\,micron = {10^{ - 5}}cm$
  • $1\,micron = {10^{ - 4}}\,cm$

Answer

Correct option: D.
$1\,micron = {10^{ - 4}}\,cm$
d
(d) $1\,\,micron = {10^{ - 6}}m = {10^{ - 4}}cm$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

A body moves from rest with a constant acceleration of $5\,m/{s^2}$. Its instantaneous speed (in $m/s)$ at the end of $10\, sec$ is
A solid sphere rolls without slipping and presses a spring of spring constant $'k'$ as shown  in figure. Then, the compression in the spring will be :-
A solid cylinder and a solid sphere, having same mass $M$ and radius $R$, roll down the same inclined plane from top without slipping. They start from rest. The ratio of velocity of the solid cylinder to that of the solid sphere, with which they reach the ground, will be.
A ray of light strikes a plane mirror $M$ at an angle of $45^o $ as shown in the figure. After reflection, the ray passes through a prism of refractive index $1.5$ whose apex angle is $4^o $. The total angle through which the ray is deviated is....$^o$
A $120\, volt$ $ac$ source is connected across a pure inductor of inductance $0.70 \,henry.$ If the frequency of the source is $60\, Hz$, the current passing through the inductor is
$\Delta U + \Delta W = 0$ is valid for
An equiconvex lens of glass of focal length $0.1$ metre is cut along a plane perpendicular to principle axis into two equal parts. The ratio of focal length of new lenses formed is
A steel wire with mass per unit length $7.0 \times 10^{-3}\,kg\,m ^{-1}$ is under tension of $70\,N$. The speed of transverse waves in the wire will be $.........m/s$
Consider two thin identical conducting wires covered with very thin insulating material. One of the wires is bent into a loop and produces magnetic field $B_1,$ at its centre when a current $I$ passes through it.The second wire is bent into a coil with  three identical loops adjacent to each other and produces magnetic field $B_2$ at the centre of the loops when current $I/3$ passes through it. The ratio $B_1 : B_2$ is
If $L $ is the coherence length and $c$  the velocity of light, the coherent time is