1
TG EAPCET 2025 (Online) 3rd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The Young's modulus and Poisson's ratio of a material are respectively $Y$ and $\sigma$. The force required to decrease the area of cross-section of a wire made of this material by $\triangle A$ is

A

$\frac{Y \Delta A}{4 \sigma}$

B

$\frac{2 Y \Delta A}{\sigma}$

C

$\frac{Y \Delta A}{2 \sigma}$

D

$\frac{Y \Delta A}{\sigma}$

2
TG EAPCET 2025 (Online) 3rd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A thin film of water is formed between two straight parallel wires each of length 8 cm separated by distance of 0.6 cm . The work done to increase the distance between the wires to 0.8 cm is (Surface tension of water $=0.07 \mathrm{Nm}^{-1}$ )

A

$33.6 \mu \mathrm{~J}$

B

$22.4 \mu \mathrm{~J}$

C

$11.2 \mu \mathrm{~J}$

D

$44.8 \mu \mathrm{~J}$

3
TG EAPCET 2025 (Online) 3rd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A rain drop of diameter 1 mm falls with a terminal velocity of $0.7 \mathrm{~ms}^{-1}$ in air. If the coefficient of viscosity of air is $2 \times 10^{-5} \mathrm{~Pa}$-s, the viscous force on the rain drop is

A

$132 \times 10^{-8} \mathrm{~N}$

B

$6.6 \times 10^{-8} \mathrm{~N}$

C

$26.4 \times 10^{-8} \mathrm{~N}$

D

$10.4 \times 10^{-8} \mathrm{~N}$

4
TG EAPCET 2025 (Online) 3rd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The temperature at which the reading on Fahrenheit scale becomes $90 \%$ more than the reading on Celsius scale is

A

$280^{\circ} \mathrm{F}$

B

$580^{\circ} \mathrm{F}$

C

$608^{\circ} \mathrm{F}$

D

$320^{\circ} \mathrm{F}$

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