$A$ weight $W$ can be hung in any of the following four ways by a string of the same type. In which case is the string most likely to break?

In a biprism experiment,if the $5^{\text{th}}$ bright band with wavelength $\lambda_{1}$ coincides with the $6^{\text{th}}$ dark band with wavelength $\lambda_{2}$,then the ratio $\left(\frac{\lambda_{2}}{\lambda_{1}}\right)$ is:

Which artificial sweetener contains chlorine?

The collector plate in an experiment on the photoelectric effect is kept vertically above the emitter plate. $A$ light source is turned on and a saturation photocurrent is recorded. An electric field is then switched on which has a vertically downward direction.

The number of ways that $8$ beads of different colours can be strung as a necklace is

$y + x^2 = \frac{dy}{dx}$ has the solution