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JEE Main 2022 (Online) 26th June Morning Shift
Numerical
+4
-1
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The elongation of a wire on the surface of the earth is 10$$-$$4 m. The same wire of same dimensions is elongated by 6 $$\times$$ 10$$-$$5 m on another planet. The acceleration due to gravity on the planet will be ____________ ms$$-$$2. (Take acceleration due to gravity on the surface of earth = 10 ms$$-$$2)

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2
JEE Main 2022 (Online) 26th June Morning Shift
Numerical
+4
-1
Change Language

An ideal fluid of density 800 kgm$$-$$3, flows smoothly through a bent pipe (as shown in figure) that tapers in cross-sectional area from a to $${a \over 2}$$. The pressure difference between the wide and narrow sections of pipe is 4100 Pa. At wider section, the velocity of fluid is $${{\sqrt x } \over 6}$$ ms$$-$$1 for x = ___________. (Given g = 10 ms$$-$$2)

JEE Main 2022 (Online) 26th June Morning Shift Physics - Properties of Matter Question 123 English

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3
JEE Main 2022 (Online) 25th June Morning Shift
Numerical
+4
-1
Change Language

The velocity of upper layer of water in a river is 36 kmh$$-$$1. Shearing stress between horizontal layers of water is 10$$-$$3 Nm$$-$$2. Depth of the river is __________ m. (Co-efficient of viscosity of water is 10$$-$$2 Pa.s)

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4
JEE Main 2022 (Online) 24th June Evening Shift
Numerical
+4
-1
Out of Syllabus
Change Language

In an experiment to verify Newton's law of cooling, a graph is plotted between the temperature difference ($$\Delta$$T) of the water and surroundings and time as shown in figure. The initial temperature of water is taken as 80$$^\circ$$C. The value of t2 as mentioned in the graph will be __________.

JEE Main 2022 (Online) 24th June Evening Shift Physics - Properties of Matter Question 119 English

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