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AP EAPCET 2024 - 21th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
The elastic energy stored per unit volume in terms of longitudinal strain $\varepsilon$ and Young's modulus $Y$ is
A
$\frac{\gamma \varepsilon^2}{2}$
B
$\frac{1}{2} Y_{\varepsilon}$
C
$2 \gamma \varepsilon^2$
D
$2 Y_{\varepsilon}$
2
AP EAPCET 2024 - 20th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

When the load applied to a wire is increased from 5 kg wt to 8 kg wt . The elongation of the wire increases from 1 mm to 1.8 mm . The work done during the elongation of the wire is (acceleration due to gravity $=10 \mathrm{~ms}^{-2}$ )

A

$47 \times 10^{-3} \mathrm{~J}$

B

$72 \times 10^{-3} \mathrm{j}$

C

$25 \times 10^{-3} \mathrm{~J}$

D

$97 \times 10^{-3} \mathrm{~J}$

3
AP EAPCET 2024 - 19th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
If the work done in stretching a wire by 1 min is 2 J . The work necessary for stretching another wire of satrs material but with double radius of cross-section and half the length by 1 mm is
A
16 J
B
8 J
C
4 J
D
$\frac{1}{4} J$
4
AP EAPCET 2024 - 18th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
Two copper wires $A$ and $B$ of lengths in the ratio $1: 2$ and diameters in the ratio $3: 2$ are stretched by foren in the ratio $3 : 1$. The ratio of the clastic potential energies stored per unit volume in the wires $A$ and $B$ is.
A
$2: 1$
B
$4: 9$
C
$16: 9$
D
$4: 3$
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