List of top Nano Technology Questions asked in AP PGECET

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

A major thermodynamic reason for nanoparticle agglomeration is:

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

The core of optical Fiber has refractive index:

Curie temperature is the temperature at which:

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:

At equilibrium, Gibbs free energy change is:

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?

Stirling's approximation is used to simplify:

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?

At eutectic point, degree of freedom is:

Second law states:

Which of the following statements regarding mechanical twinning is FALSE?

The efficiency of a Carnot engine depends on:

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

Chemical potential is equal to:

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?

Which of the following processes produces maximum work?

In an adiabatic process:

For ideal solution, activity (a) equals:

Seamless tubes can be produced by