List of top Nano Technology Questions

Which theory best explains the phenomenon of superconductivity?
The type of semiconductor bandgap essential for materials used in light-emitting diodes is:
In optical fibers, the principle that enables light transmission along the fiber's length is:
The phenomenon observed when a material exhibits zero electrical resistance below a critical temperature is:
The type of magnetism utilized in permanent magnets is:
Considering the stress-strain diagram, the material would be best suited for an application requiring high toughness is:
The slope of the stress-strain curve in the elastic region is indicative of the material's:
Apply the concept of superconductivity to explain the disappearance of electrical resistance. The application that best demonstrates this principle is:
Comparing the stress-strain diagrams of cast iron and aluminum alloy, which statement is true regarding their elastic moduli?
The crystal system characterized by three unequal axes which intersect at 90° is:
The phenomenon where a superconductor expels an external magnetic field is known as:
The type of material primarily used for insulation purposes is:
Which unit cell has two sides of equal length, a third side of different length, and all angles equal to 90 degrees?
What is the primary challenge in synthesizing nanoparticles using the bottom-up approach?
Calculate the drift velocity of the free electrons with mobility of (3)5\(\times\)10\(^{-3}\) m\(^2\)/Vs in copper for an electric field strength of 0.5 V/m.
What distinguishes hard magnetic materials from soft magnetic materials in terms of their application?
A block of mass 5 kg is placed on a frictionless inclined plane. The angle of inclination of the plane is 30 degrees. Calculate the force required to keep the block in equilibrium.
What is a significant environmental challenge associated with the bottom-up approach in nanotechnology?
Which characteristic differentiates thermosetting polymers from thermoplastic polymers?
The velocity profile for a Bingham plastic fluid flowing (under laminar conditions) in a pipe.
Which of the following properties is typically NOT enhanced by the addition of carbon in steel?
A paramagnetic substance, in the form of a cube with sides 1 cm, has a magnetic dipole moment of 20 x 10\(^{-6}\) J/T, when a magnetic intensity of 60 x 10\(^3\) A/m is applied. Its magnetic susceptibility is
Calculate the electrical conductivity of a copper wire if the number density of free electrons is 8.5x10\(^{28}\) electrons/m\(^3\) and the electron mobility is 0.0035 m\(^2\)/Vs.
Which of the following statements best describes the effect of increasing the temperature on the conductivity of an intrinsic semiconductor?
Estimate the surface area of a spherical nanoparticle with a diameter of 10 nm.