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

The image of the point $(4, -13)$ with respect to the line $5x + y + 6 = 0$ is

The logic behind the $NOR$ gate is that it gives

$A$ graph of magnetic flux $(\phi)$ versus current $(I)$ is drawn for four inductors $A, B, C, D$. Which inductor has the largest value of self-inductance?

The lines $x-y-2=0$,$x+y-4=0$ and $x+3y=6$ meet at a common point:

Match the following:
| Column $I$ | Column $II$ |
| :--- | :--- |
| $A$. Hooke's law | $1$. Tangential strain |
| $B$. Shearing strain | $2$. Temporary loss of elastic property |
| $C$. Bulk strain | $3$. Elastic limit |
| $D$. Elastic fatigue | $4$. $3$ times the linear strain |