QJEEAdv24Ph3d74: JEE Advanced 2024 Physics - Class 12 JEEAdv24Ph3d74 Solution: A region in the form of an equilateral triangle (in plane) of…

A region in the form of an equilateral triangle (in $x-y$ plane) of height $L$ has a uniform magnetic field $\vec{B}$ pointing in the $+z$ -direction. A conducting loop $\mathrm{PQR}$ , in the form of an equilateral triangle of the same height $L$ , is placed in the $x-y$ plane with its vertex $\mathrm{P}$ at $x=0$ in the orientation shown in the figure. At $t=0$ , the loop starts entering the region of the magnetic field with a uniform velocity $\vec{v}$ along the $+x$ -direction. The plane of the loop and its orientation remain unchanged throughout its motion.

Which of the following graph best depicts the variation of the induced emf $(E)$ in the loop as a function of the distance $(x)$ starting from $x=0$ ?