1
TG EAPCET 2024 (Online) 11th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

An object of mass $m$ at a distance of $20 R$ from the centre of a planet of mass $M$ and radius $R$ has an initity velocity $u$. The velocity with which the object hits the surface of the planet is

( $G$-Universal gravitational constant)

A
$\left[u^{2}+\frac{19 G M}{10 R}\right]^{\frac{1}{2}}$
B
$\left[u^{2}+\frac{19 G m}{10 R}\right]^{\frac{1}{2}}$
C
$\left[u^{2}-\frac{19 G M}{10 R}\right]^{\frac{1}{2}}$
D
$\left[u^{2}-\frac{19 G m}{10 R}\right]^{\frac{1}{2}}$
2
TG EAPCET 2024 (Online) 11th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
A simple pendulum is made of a metal wire of length $L$, area of cross-section $A$, material of Young's modulus $Y$ and a bob of mass $m$. This pendulum is hung in abus moving with a uniform speed $v$ on a horizontal circular road of radius $R$. The elongation in the wire is
A
$\frac{m L}{R A Y} \sqrt{g^{2} R^{2}+v^{4}}$
B
$\frac{m g L}{A Y}$
C
$\frac{m L v^{2}}{R A Y}$
D
$\frac{L}{A Y} \sqrt{m g+\frac{m v^{2}}{R}}$
3
TG EAPCET 2024 (Online) 11th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
If the excess pressures inside two soap bubbles are in the ratio $2: 3$, then the ratio of the volumes of the somp bubbles is
A
$3: 2$
B
$9: 4$
C
$27: 8$
D
$81: 16$
4
TG EAPCET 2024 (Online) 11th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
The velocities of air above and below the surfaces of a flying aeroplane wing are $50 \mathrm{~ms}^{-1}$ and $40 \mathrm{~ms}^{-1}$, respectively. If the area of the wing is $10 \mathrm{~m}^{2}$ and the mass of the aeroplane is 500 kg , then as time passes of (density of air $=13 \mathrm{~kg} \mathrm{~m}^{-3}$ )
A
the aeroplane will gain altitude
B
the aeroplane will experience weightlessness
C
the aeroplane will fly horizontally
D
the aeroplane will loose altitude
EXAM MAP