Which role is played by Lactobacillus in our stomach?

$A$ coil of area $80\, cm^2$ and $50\, turns$ is rotating with $2000$ revolutions per minute about an axis perpendicular to a magnetic field of $0.05\, T$. The maximum value of the $emf$ developed in it is

Fusion reaction is initiated with the help of

Among the following ions,which one has the highest paramagnetism?

Describe the bulk preparation of dihydrogen by the electrolytic method. What is the role of an electrolyte in this process?

If a straight line $L$ is perpendicular to the line $4x - 2y = 1$ and forms a triangle of area $4 \text{ sq unit}$ with the coordinate axes,then the equation of the line $L$ is