List of top Nano Technology Questions

A major thermodynamic reason for nanoparticle agglomeration is:

Curie temperature is the temperature at which:

The core of optical Fiber has refractive index:

Retentivity means:

For a laminar boundary layer developing over a flat plate, the displacement thickness is defined as: $\delta^* = \int_0^\delta \left(1 - \frac{u}{\text{U}_\infty}\right) dy$. Physically, $\delta^*$ represents

For Inlet diameter $>$ Outlet diameter the Velocity and pressure along the flow will be as

At equilibrium, Gibbs free energy change is:

Drag force $F$ depends on density $\rho$, velocity $V$, and diameter $D$: $F = k \rho^a V^b D^c$. Find exponents $a, b, c$.

Which material is diamagnetic?

Paramagnetic materials have:

Magnetic susceptibility ($\chi$) of paramagnetic materials follows:

The volume $V$ of a cubic unit cell is related to the lattice parameter $a$. Which of the following expressions is dimensionally and physically correct?

Second law states:

Which of the following statements regarding mechanical twinning is FALSE?

The efficiency of a Carnot engine depends on:

At eutectic point, degree of freedom is:

Two parallel edge dislocations of the same sign (same Burger's vector) are located on the same slip plane. As they approach each other, what happens?

Stirling's approximation is used to simplify:

The Zeroth Law of Thermodynamics provides the basis for temperature measurement. If Body A is in thermal equilibrium with Body B, and Body B is in thermal equilibrium with Body C, which property must be identical for all three?

In statistical thermodynamics, Stirling's Approximation ($\ln N! \approx N \ln N - N$) is valid only when

In an adiabatic process:

Which of the following processes produces maximum work?

Chemical potential is equal to:

For ideal solution, activity (a) equals:

According to the Gibbs Phase Rule (F = C - P + 2), at the triple point of a pure metal (e.g., where solid, liquid, and vapour coexist), the degrees of freedom F is