1
JEE Main 2021 (Online) 24th February Morning Shift
Numerical
+4
-1
A hydraulic press can lift 100 kg when a mass 'm' is placed on the smaller piston. It can lift ___________ kg when the diameter of the larger piston is increased by 4 times and that of the smaller piston is decreased by 4 times keeping the same mass 'm' on the smaller piston.
Your input ____
2
JEE Main 2020 (Online) 3rd September Morning Slot
Numerical
+4
-0
When a long glass capillary tube of radius
0.015 cm is dipped in a liquid, the liquid rises
to a height of 15 cm within it. If the contact angle
between the liquid and glass to close to 0o, the
surface tension of the liquid, in milliNewton m–1,
is [$$\rho $$(liquid) = 900 kgm–3, g = 10 ms–2]
(Give answer in closest integer) _____.
(Give answer in closest integer) _____.
Your input ____
3
JEE Main 2020 (Online) 2nd September Evening Slot
Numerical
+4
-0
A wire of density 9 $$ \times $$ 10–3 kg cm–3 is stretched
between two clamps 1 m apart. The resulting
strain in the wire is 4.9 $$ \times $$ 10–4. The lowest
frequency of the transverse vibrations in the
wire is : (Young’s modulus of wire Y = 9 $$ \times $$ 1010
Nm–2), (to the nearest integer), _________
Your input ____
Questions Asked from Properties of Matter (Numerical)
Number in Brackets after Paper Indicates No. of Questions
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