1
AP EAPCET 2021 - 19th August Morning Shift
MCQ (Single Correct Answer)
+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
2
AP EAPCET 2021 - 19th August Morning Shift
MCQ (Single Correct Answer)
+1
-0

A heavy brass sphere is hung from a spring and it executes vertical vibrations with period T. The sphere is now immersed in a non-viscous liquid with a density (1/10 )th that of brass. When set into vertical vibrations with the sphere remaining inside liquid all the time, the time period will be

A
$$\left( {\sqrt {{9 \over {10}}} } \right)T$$
B
$$\left( {\sqrt {{{10} \over 9}} } \right)T$$
C
$$\left( {{9 \over {10}}} \right)T$$
D
Unchanged
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