NEET PHYSICS TEST ARRANGEMENT: QUESTION: A capillary tube of radius 'r' is immersed in water and the water rises it to a height h.The mass of the water in the capillary tube is 5 g. Another capillary tube of radius '2r' is immersed in water.The mass of the water that will rise in the tube is; [A]. 2.5 g [B]. 5.0 g [C]. 10.0 g [D]. 20.0 g ANSWER: ANSWER - [C] SOLUTION: CAPILLARY RISE: A capillary tube (glass tube) of radius 'r 'is dipped in water, the surface pulls the capillary walls in downward direction. Capillary walls pull the surface in upward direction. By the way the water in the tube will rise above the adjacent liquid level till the forces get balanced. This rises what we called it as capillary rise WHAT ARE THE TWO FORCES ACTING AT EQUILIBRIUM? 1. First one is the weight of the water column, acting downwards. ...
COMPOUND MICROSCOPE: Compound microscope is a microscope uses the mix of two lenses to deliver a higher magnification.it is utilized in labs and principally utilized for the examination purpose.The absolute amplification created by a compound microscope not entirely settled by duplicating the amplification of the two lenses (objective and eye piece lens) CONSTRUCTION: There are two lenses joined in a compound magnifying instrument (microscope) which permits a lot higher amplification. The compound magnifying instrument (microscpe) comprises of a long barrel shaped cylinder where one finish of the cylinder has an objective lens (small aperture and small focal length) and the opposite end has an eyepiece lens (the aperture and the focal length are fairly bigger than the objective lens). Objective lens which centers a genuine picture of the object,the picture is additionally amplified by the eyepiece which gives the watcher a picture that is virtual, amplified and reversed (inv...
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