Physics-
General
Easy
Question
Pressure inside a drop of radius r is ____ in comparison to pressure inside a drop of same liquid of radius 2R
- Double
- more than double
- less than double
- None
The correct answer is: less than double
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A square gate of size 1 m × 1 m is hinged at its mid point. A fluid of density r fills the space to the left of the gate. The force F required to hold the gate stationary is
A square gate of size 1 m × 1 m is hinged at its mid point. A fluid of density r fills the space to the left of the gate. The force F required to hold the gate stationary is
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A bent arc shaped sealed glass tube filled with water is accelerated horizontally with acceleration a. A small air bubble inside it is found to be stuck at 1 cm from vertical axis. Neglect surface tension. What is the acceleration of the tube.
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The figure below shows four situations in which a gray liquid and a black liquid (which we known nothing about) are in a U tube.
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The figure below shows four situations in which a gray liquid and a black liquid (which we known nothing about) are in a U tube.
In which of the following situation(s) of static equilibrium must the density of the gray liquid be greater than the density of the black liquid? (circle all appropriate cases)
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Which of the following situations does not show static equilibrium of liquids.
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Which of the following situations does not show static equilibrium of liquids.
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A cylindrical block of density d stays fully immersed in a beaker filled with two immiscible liquids of different densities d1 and d2 . The block is in equilibrium with half of it in liquid 1 and the other half in liquid 2, as shown in the figure. If the block is given a small displacement downward and released, then neglecting frictional losses
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An automobile horn has a frequency n The horn is sounded continuously as the automobile is driven in the straight line with a velocity v past a stationary observer. The shortest distance between the automobile and the observer is x0 Which graph shown the correct variation of frequency heard by the observer. (C is the velocity of sound in air)
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A string passing over a smooth pulley carries a stone at one end, while its other end is attached to a fixed end. A vibrating tuning fork is brought in contact with the stretched string and the string vibrates forming 8 loops. When the stone is completely immersed in water 10 loops are formed. The specific gravity of the stone is,
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When a harmonic wave is propagating through a medium, the displacement ‘y’ of a particle of the medium is represented by 
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In the circuit shown
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