1
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A hole is drilled half way to the centre of the earth. A body weighs 300 N on the surface of the earth. How much will, it weigh at the bottom of the hole?

A
200 N
B
250 N
C
120 N
D
150 N
2
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Eight identical drops of water falling through air with uniform velocity of $10 \mathrm{~cm} / \mathrm{s}$ combine to form a single drop of big size, then terminal velocity of the big drop will be

A
80 cm/s
B
10 cm/s
C
30 cm/s
D
40 cm/s
3
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A solid sphere rolls down from top of inclined plane, 7 m high, without slipping. Its linear speed at the foot of plane is $\left(g=10 \mathrm{~m} / \mathrm{s}^2\right)$

A
$\sqrt{70} \mathrm{~m} / \mathrm{s}$
B
$\sqrt{\frac{140}{3}} \mathrm{~m} / \mathrm{s}$
C
$\sqrt{\frac{280}{3}} \mathrm{~m} / \mathrm{s}$
D
$\sqrt{100} \mathrm{~m} / \mathrm{s}$
4
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A body of mass $m$ is performing a UCM in a circle of radius $r$ with speed $v$. The work done by the centripetal force in moving it through $\left(\frac{2}{3}\right) \mathrm{rd}$ of the circular path is

A
zero
B
$m v^2 \pi r$
C
$\frac{2 \pi m v^2 r}{3}$
D
$\frac{2 m v^2 \pi}{3}$
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