AP EAPCET 2024 - 22th May Evening Shift | Elasticity Question 1 | Physics

A wire of length 100 cm and area of cross-section $2 \mathrm{~mm}^2$ is stretched by two forces of each 440 N applied at the ends of the wire in opposite directions along the length of the wire. If the elongation of the wire is 2 mm , the Young's modulus of the material of the wire is

$2.1 \times 10^{11} \mathrm{Nm}^{-2}$

$2.4 \times 10^{11} \mathrm{Nm}^{-2}$

$4.4 \times 10^{11} \mathrm{Nm}^{-2}$

$1.1 \times 10^{11} \mathrm{Nm}^{-2}$

AP EAPCET 2024 - 22th May Morning Shift

MCQ (Single Correct Answer)

-0

The elongation of copper wire of cross-sectional area $3.5 \mathrm{~mm}^2$, in the figure shown, is

$$ \left(Y_{\text {Copper }}=10 \times 10^{10} \mathrm{Nm}^{-2} \text { and } g=10 \mathrm{~ms}^{-2}\right) $$

AP EAPCET 2024 - 22th May Morning Shift Physics - Elasticity Question 2 English

$10^{-4} \mathrm{~m}$

$10^{-3} \mathrm{~m}$

$10^{-6} \mathrm{~m}$

$10^{-2} \mathrm{~m}$

AP EAPCET 2024 - 21th May Evening Shift

MCQ (Single Correct Answer)

-0

A 4 kg stone attached at the end of a steel wire is being whirled at a constant speed $12 \mathrm{~ms}^{-1}$ in a horizontal circle. The wire is 4 m long with a diameter 2.0 mm and Young's modulus of the steel is $2 \times 10^{11} \mathrm{Nm}^{-2}$. The strain in the wire is.

$2.4 \times 10^{-4}$

$2.3 \times 10^{-5}$

$4.6 \times 10^{-4}$

$6.9 \times 10^{-4}$

AP EAPCET 2024 - 21th May Morning Shift

MCQ (Single Correct Answer)

-0

The elastic energy stored per unit volume in terms of longitudinal strain $\varepsilon$ and Young's modulus $Y$ is

$\frac{\gamma \varepsilon^2}{2}$

$\frac{1}{2} Y_{\varepsilon}$

$2 \gamma \varepsilon^2$

$2 Y_{\varepsilon}$

AP EAPCET Subjects