Q141
Open questionInsects can move on the surface of water without sinking due to
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Physics GK · all questionsMechanical Physics
Mechanical Physics
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Q142
Open questionIn cold weather, aquatic animals survive even when water at the top layer of the lake freezes into ice because
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Q143
Open questionThe size of the Respirable Suspended Particulate Matter (R.S.P.M.) in air is
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Q144
Open questionA body is just floating in a liquid if the body is slightly pressed down and released. It will
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Q145
Open questionTwo pieces of different metals, when completly immersed in water, experience equal upthrust, then
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Q146
Open questionThe relative density of silver is 10.8. The density of water is 103kgm-3. What will be the density of silver in SI unit.
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Q147
Open questionWhich of the following increases when the pressure exerted by a solid decreases-
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Q148
Open questionWhen the temperature increases, the angle of contact of liquid
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Q149
Open questionWhen a cork and a iron nail are placed in a beaker filled with water, the cork floats while the iron nail is submerged.
What is the reason behind it?
What is the reason behind it?
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Q150
Open questionThe rain drops are spherical because
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Q151
Open questionWhen a body is completely or partially immersed in a fluid, this body experiences a force equal to the weight of the displaced fluid, this principle is known as
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Q152
Open questionAlong a streamline flow of fluid,
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Q153
Open question1 pascal equal 1 . . . . . . . .
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Q154
Open questionThe temperature during solid melting-
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Q155
Open questionTwo cars, passing each other at high speed, are in danger of side swiping because
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Q156
Open questionBernoulli's theorem deals with the principle of conservation of-
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Q157
Open questionThe elastic potential energy of a body is
1. Work done by the external force against the deforming force.
2. Work done against the external force by the deforming force.
3. The sum of work done by the external force and the deforming force.
Which one option is true?
1. Work done by the external force against the deforming force.
2. Work done against the external force by the deforming force.
3. The sum of work done by the external force and the deforming force.
Which one option is true?
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Q158
Open questionWhich of the following options is true with respect to diffusion of gases with respect to solid and liquid?
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Q159
Open questionThe spring balance works on the principle of . . . . . . . .
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Q160
Open questionLongitudinal strain is defined when
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