1
MHT CET 2024 10th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A simple pendulum of length ' $l$ ' has a brass bob attached at its lower end. It's period is ' T '. A steel bob of the same size, having density ' $x$ ' times that of brass, replaces the brass bob. Its length is then so changed that the period becomes ' 2 T '. What is the new length?

A
$4 l x$
B
$\frac{4 l}{\mathrm{x}}$
C
$4 l$
D
$2 l$
2
MHT CET 2024 10th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The electric potential at a point on the axis of an electric dipole is proportional to [r = distance between centre of the electric dipole and the point]

A
$\frac{1}{\mathrm{r}}$
B
$\frac{1}{r^2}$
C
$r$
D
$\frac{1}{\mathrm{r}^3}$
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