1
TS EAMCET 2023 (Online) 13th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Gravitational forces operate among which of the following?

A

All objects in the universe

B

Some elementary particles only

C

Charged particles only

D

Nucleons only

2
TS EAMCET 2023 (Online) 13th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The percentage increase in the energy for an artificial satellite to shift it from an orbit of radius $r$ to an orbit of radius $3 r / 2$ is

A

66.7

B

50

C

33.33

D

25

3
TS EAMCET 2023 (Online) 12th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
The ratio of the radii of two planets is $r$ and the ratio of accelerations due to gravity on the planets is $x$. Then the ratio of the escape velocities from the planets is
A
$x r$
B
$\sqrt{\frac{r}{x}}$
C
$\sqrt{\sqrt{x}}$
D
$\sqrt{\frac{x}{r}}$
4
TS EAMCET 2023 (Online) 12th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
A ring has a mass $M$ and radius $R$. The distance of the point on its geometric axis from its centre at which the gravitational field is strongest is
A
$\frac{R}{2}$
B
$\frac{R}{4}$
C
$\frac{R}{\sqrt{3}}$
D
$\frac{R}{\sqrt{2}}$

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