1
TS EAMCET 2022 (Online) 18th July Evening Shift
MCQ (Single Correct Answer)
+1
-0

A hollow spherical body of outer and inner radii of 4 cm and 2 cm respectively, floats half submerged in a liquid of density $2.0 \mathrm{~g} / \mathrm{cm}^3$. The density of the material of the sphere is

A

$1.02 \mathrm{~g} / \mathrm{cm}^2$

B

$1.14 \mathrm{~g} / \mathrm{cm}^2$

C

$1.18 \mathrm{~g} / \mathrm{cm}^2$

D

$124 \mathrm{~g} / \mathrm{cm}^2$

2
TS EAMCET 2022 (Online) 18th July Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is the terminal velocity of a rain drop of radius 0.02 mm ?

[Note that the coefficient of viscosity of air is $1.8 \times 10^{-5} \mathrm{N} / \mathrm{m}^2$, density of water is $1000 \mathrm{~kg} / \mathrm{m}^3$. Use, $g=10 \mathrm{~m} / \mathrm{s}^2$ and density of air can be neglected in comparision with density of water]

A

$4.9 \mathrm{~cm} / \mathrm{s}$

B

$9.8 \mathrm{~cm} / \mathrm{s}$

C

$0.49 \mathrm{~cm} / \mathrm{s}$

D

$49 \mathrm{~cm} / \mathrm{s}$

3
TS EAMCET 2022 (Online) 18th July Evening Shift
MCQ (Single Correct Answer)
+1
-0

A hole of diameter 5 cm is drilled in a metal sheet at $30^{\circ} \mathrm{C}$. The linear expansion of metal is $2 \times 10^{-5} \mathrm{~K}^{-1}$. The diameter of the hole when the temperature is raised to $230^{\circ} \mathrm{C}$, is equal to

A

5.01 cm

B

5.02 cm

C

5.03 cm

D

5.04 cm

4
TS EAMCET 2022 (Online) 18th July Evening Shift
MCQ (Single Correct Answer)
+1
-0

A metal cube absorbs 2100.0 J of heat when its temperature is raised by $2^{\circ} \mathrm{C}$. If the specific heat of the metal is $900 \mathrm{~J} \mathrm{~kg}^{-1} \mathrm{~K}^{-1}$, then the mass of the cube is

A

1.116 kg

B

2.33 kg

C

1.66 kg

D

1.33 kg

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