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तामिळनाडू बोर्ड ऑफ सेकेंडरी एज्युकेशनएस.एस.एल.सी. (इंग्रजी माध्यम) इयत्ता ८

The property of _______ of a liquid surface enables the water droplets to move upward in plants. - Science

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प्रश्न

The property of _______ of a liquid surface enables the water droplets to move upward in plants.

रिकाम्या जागा भरा
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उत्तर

The property of surface tension of a liquid surface enables the water droplets to move upward in plants.

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पाठ 2: Force and Pressure - Exercises [पृष्ठ १९]

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सामाचीर कलवी Science [English] Class 8 TN Board
पाठ 2 Force and Pressure
Exercises | Q II. 3. | पृष्ठ १९

संबंधित प्रश्‍न

Explain why A drop of liquid under no external forces is always spherical in shape


Frictional force between solids operates even when they do not move with respect to each other. Do we have viscous force acting between two layers even if there is no relative motion?


A heavy mass is attached to a thin wire and is whirled in a vertical circle. The wire is most likely to break


A 20 cm long capillary tube is dipped in water. The water rises up to 8 cm. If the entire arrangement is put in a freely falling elevator, the length of water column in the capillary tube will be


The wettability of a surface by a liquid depends primarily on


A square frame of each side L is dipped in a soap solution and taken out. The force acting on the film formed is _____.
(T = surface tension of soap solution).


The upward force of 105 dyne due to surface tension is balanced by the force due to the weight of the water column and 'h' is the height of water in the capillary. The inner circumference of the capillary is ______.

(surface tension of water = 7 × 10-2 N/m)


If a drop of liquid breaks into smaller droplets, it results in lowering of temperature of the droplets. Let a drop of radius R, break into N small droplets each of radius r. Estimate the drop in temperature.


A coaxial cylinder made of glass is immersed in liquid of surface tension ' S'. Radius of inner and outer surface of cylinder are R1 and R2 respectively. Height till which liquid will rise is (Density of liquid is p):


Work done to blow a bubble of volume V is W. The work done in blowing a bubble of volume 2V will be ______.


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