MCQ
A unitless quantity:
  • Never has a non-zero dimension.
  • B
    Always has a non-zero dimension.
  • C
    May have a non-zero dimension.
  • D
    Does not exist.

Answer

Correct option: A.
Never has a non-zero dimension.
A unitless quantity never has a non-zero dimension.

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

In Bohr's atomic model, the electron is assumed to revolve in a circular orbit of radius $0.5 \times 10^{-10}\,m$. If the speed of electron is $2.2 \times 10^{6} \;{m} / {s}$, then the current associated with the electron will be $....\,\times 10^{-2} \;{mA}$. [Take $\pi$ as $\left.\frac{22}{7}\right]$
A convex lens of focal length 84 cm is in contact with a concave lens of focal length 12 cm. The power of combination (in diopters) is
The magnifying power of a simple microscope can be increased, if we use eye-piece of
A composite slab consisting of different medium is placed infront of a concave mirror of radius of curvature $150\, cm$. The whole arrangement is placed in water. An object $O$ is placed at a distance $20\, cm$ from the slab. The $R.I.$ of different media are given in the diagram. Find the final image formed by the system
In the given circuit what is the maximum value of $R_S$ for zener diode to regulate voltage on load resistance ?.......$K\Omega $
A microscope is focused on a mark. Then a glass slab of refractive index 1.5 and thickness 6 cm is placed on the mark. To get the mark again in focus the microscope should be moved
Missing lines in a continuous spectrum reveal
The process of sharing the charges with the earth is called as:
In the hysteresis cycle, the value of $H$ needed to make the intensity of magnetism zero is called:
Two bulbs of equal wattage, one having carbon filament and the other having a tungsten filament are connected in series to the mains, then