MCQ
Finger prints are observed by the use of
  • A
    Telescope
  • Microscope
  • C
    Gallilean telescope
  • D
    Concave lens

Answer

Correct option: B.
Microscope

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 metal rod of length $2 \mathrm{~m}$ is rotating with an angular velocity of $100\ \mathrm{rad} / \mathrm{sec}$ in a plane perpendicular to a uniform magnetic field of $0.3$ $T$. The potential difference between the ends of the rod is
The ratio of the radii of planets $\mathrm{A}$ and $\mathrm{B}$ is $k_1$ and ratio of acceleration due to gravity on them is $k_2$. The ratio of escape velocities from them will be
The force constant of a weightless spring is $16 \mathrm{~N} / \mathrm{m}$. A body of mass $1.0 \mathrm{~kg}$ suspended from it is pulled down through $5 \mathrm{~cm}$ and then released. The maximum kinetic energy of the system (spring + body) will be
A body of $10 \mathrm{~kg}$ is acted by a force of $129.4 \mathrm{~N}$ if $g=9.8 \mathrm{~m} / \mathrm{sec}^2$. The acceleration of the block is $10 \mathrm{~m} / \mathrm{s}^2$. What is the coefficient of kinetic friction
The resistance of a galvanometer is $90 \mathrm{ohms}$. If only 10 percent of the main current may flow through the galvanometer, in which way and of what value, a resistor is to be used
The energy that should be added to an electron, to reduce its deBroglie wavelengths from $10^{-10} \mathrm{~m}$ to $0.5 \times 10^{-10} \mathrm{~m}$, will be
The least velocity required to throw a body away from the surface of a planet so that it may not return is (radius of the planet is $\left.6.4 \times 10^6 \mathrm{~m}, g=9.8 \mathrm{~m} / \mathrm{sec}^2\right)$
We are able to obtain fairly large currents in a conductor because
Two bar magnets of the same mass, length and breadth but magnetic moments $M$ and $2 M$ respectively, when placed in same position, time period is $3 \mathrm{sec}$. What will be the time period when they are placed in different position
If a metallic sphere gets cooled from $62^{\circ} \mathrm{C}$ to $50^{\circ} \mathrm{C}$ in 10 minutes and in the next 10 minutes gets cooled to $42^{\circ} \mathrm{C}$, then the temperature of the surroundings is