1
TS EAMCET 2020 (Online) 14th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

A particle is exhibiting simple harmonic motion has its displacement $x$ and velocity $v$ related as $4 v^2=25-x^2$. The time period of SHM is

A

$\pi \mathrm{s}$

B

$2 \pi \mathrm{~s}$

C

$3 \pi \mathrm{~s}$

D

$4 \pi \mathrm{~s}$

2
TS EAMCET 2020 (Online) 14th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

If the escape velocity on earth is $11.2 \mathrm{~km} / \mathrm{s}$, its value for a planet having double the radius and 8 time the mass of earth is

A

$22.4 \mathrm{~km} / \mathrm{s}$

B

$24.3 \mathrm{~km} / \mathrm{s}$

C

$26.6 \mathrm{~km} / \mathrm{s}$

D

$44.8 \mathrm{~km} / \mathrm{s}$

3
TS EAMCET 2020 (Online) 14th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

If the bulk modulus of water is $2 \times 10^9 \mathrm{Nm}^{-2}$, then the required pressure to reduce the given volume of water by $2 \%$ is

A

$2 \times 10^7 \mathrm{Nm}^{-2}$

B

$4 \times 10^7 \mathrm{Nm}^{-2}$

C

$8 \times 10^6 \mathrm{Nm}^{-2}$

D

$5 \times 10^7 \mathrm{Nm}^{-2}$

4
TS EAMCET 2020 (Online) 14th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

The surface tension of 70 dynes $/ \mathrm{cm}$ is equal to

A

$70 \mathrm{~N} / \mathrm{m}$

B

$70 \times 10^{-3} \mathrm{~N} / \mathrm{m}$

C

$7 \times 10^2 \mathrm{~N} / \mathrm{m}$

D

$7 \times 10^3 \mathrm{~N} / \mathrm{m}$

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