1
MHT CET 2024 15th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Two capillary tubes A and B of the same internal diameter are kept vertically in two different liquids whose densities are in the ratio $4: 3$. If the surface tensions of these two liquids are in the ratio $6: 5$, then the ratio of rise of liquid in capillary A to that in B is (assume their angles of contact are nearly equal)

A
$10: 9$
B
$9: 10$
C
$7:10$
D
$10: 7$
2
MHT CET 2024 11th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Two rain drops of same radius are falling through air each with a steady speed of $5 \mathrm{~cm} / \mathrm{s}$. If the drops coalesce, the new steady velocity of big drop will be

A
$5 \mathrm{~cm} / \mathrm{s}$
B
$5 \sqrt{2} \mathrm{~cm} / \mathrm{s}$
C
$5 \times 2^{1 / 3} \mathrm{~cm} / \mathrm{s}$
D
$5 \times(4)^{1 / 3} \mathrm{~cm} / \mathrm{s}$
3
MHT CET 2024 11th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A capillary tube stands with its lower end dipped into liquid for which the angle of contact is $90^{\circ}$. The liquid will

A
neither rise nor fall.
B
get depressed only.
C
rise only.
D
rise upto the top of the tube.
4
MHT CET 2024 11th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A lead sphere of mass ' $m$ ' falls in viscous liquid with terminal velocity $\mathrm{V}_0$. Another lead sphere of mass ' 8 m ' but of same material will fall through the same liquid with terminal velocity

A
$\mathrm{V}_0$
B
$8 \mathrm{V}_0$
C
$\mathrm{4 V_0}$
D
$64 \mathrm{~V}_0$
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