1
AP EAPCET 2021 - 20th August Morning Shift
+1
-0

The bob of a simple pendulum is a spherical hollow ball filled with water. A plugged hole near the bottom of the oscillating bob gets suddenly unplugged. During observation, till water is coming out the time period of oscillation would

A
remain unchanged
B
increase towards a saturation value
C
first increase and then decrease to the original value
D
first decrease and then increase to the original value
2
AP EAPCET 2021 - 19th August Evening Shift
+1
-0

A block of mass $$\mathrm{l} \mathrm{kg}$$ is fastened to a spring of spring constant of $$100 ~\mathrm{Nm}^{-1}$$. The block is pulled to a distance $$x=10 \mathrm{~cm}$$ from its equilibrium position $$(x=0 \mathrm{~cm})$$ on a frictionless surface, from rest at $$t=0$$. The kinetic energy and the potential energy of the block when it is $$5 \mathrm{~cm}$$ away from the mean position is

A
$$0.375 \mathrm{~J}, 0.125 \mathrm{~J}$$
B
$$0.125 \mathrm{~J}, 0.375 \mathrm{~J}$$
C
$$0.125 \mathrm{~J}, 0.125 \mathrm{~J}$$
D
$$0.375 \mathrm{~J}, 0.375 \mathrm{~J}$$
3
AP EAPCET 2021 - 19th August Evening Shift
+1
-0

The scale of a spring balance which can measure from 0 to $$15 \mathrm{~kg}$$ is $$0.25 \mathrm{~m}$$ long. If a body suspended from this balance oscillates with a time period $$\frac{2 \pi}{5} \mathrm{~s}$$, neglecting the mass of the spring, find the mass of the body suspended.

A
24 kg
B
1 kg
C
20 kg
D
7 kg
4
AP EAPCET 2021 - 19th August Morning Shift
+1
-0

A spring is stretched by 0.40 m when a mass of 0.6 kg is suspended from it. The period of oscillations of the spring loaded by 255 g and put to oscillations is close to (g = 10 ms$$^{-2}$$)

A
11 s
B
48.6 s
C
0.82 s
D
4.86 s
EXAM MAP
Medical
NEET