NEET 2023 Question Paper Mock Test

For the following logic circuit, the truth table is:

A very long conducting wire is bent in a semi-circular shape from A to B as shown in the figure. The magnetic field at point P for steady current configuration is:

The resistance of a platinum wire at $0^{\circ }\text{C}$ is $2\Omega$ and $6.8\Omega$ at $80^{\circ }\text{C}$. The temperature coefficient of resistance of the wire is:

A wire carrying a current $I$ along the positive $x$ -axis has length $L$. It is kept in a magnetic field $\vec{B}=(2\hat{i}+3\hat{j}-4\hat{k})\text{T}$. The magnitude of the magnetic force acting on the wire is:

Two thin lenses are of same focal lengths ($f$), but one is convex and the other one is concave. When they are placed in contact with each other, the equivalent focal length of the combination will be: