NEET 2016 Question Paper - Phase-I Code B Q X - Mock Test

Out of the following options which one can be used to produce a propagating electromagnetic wave?

The charge flowing through a resistance $R$ varies with time $t$ as $Q=at-b{t}^2$ where $a$ and $b$ are positive constants. The total heat produced in $R$ is:

At what height from the surface of earth the gravitation potential and the value of $g$ are $-5.4\times 10^7\text{J/kg}$ and $6.0{\text{m/s}}^2$ respectively? Take the radius of earth as $6400\text{km}$:

Coefficient of linear expansion of brass and steel rods are ${\alpha }_1$ and ${\alpha }_2$. Lengths of brass and steel rods are $l_1$ and $l_2$ respectively. If $(l_2-l_1)$ is maintained same at all temperatures, which one of the following relations holds good?

The intensity at the maximum in a Young’s double slit experiment is $I_0$. Distance between two slits is $d=5\lambda$, where $\lambda$ is the wavelength of light used in the experiment. What will be the intensity in front of one of the slits on the screen placed at a distance $D=10d$?