Category: Learning
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Working Principle of a Microscope | Labkafe
A compound microscope is virtually recognizable anywhere, with its symbolic curved arm, heavy flat base, and delicate lens-bearing tubes stacked on top. We see it in almost every school or laboratory on earth that needs to deal with tiny things. But how does it work? In this article, we will explain the working principle of…
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Parts of a Microscope | Microscope Parts and Functions | Labkafe
To know how to operate a thing, you need to intimately know the various operable parts of that thing. So, here are the standard compound microscope parts; we advise you to read this carefully and understand. Structural Components These parts are what hold up everything else of a device. They are the only sturdy parts…
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How to find the least count of vernier calipers and measure the diameter of a body | Labkafe
Aim:(a) To find the least count of Vernier calipers (b) To measure the diameter of a small spherical/cylindrical body (c) To measure internal diameter and depth of given beaker using Vernier Calipers and (d) hence find its volume Apparatus: Theory: A Vernier Caliper has two scales–one main scale and a Vernier scale. The Vernier Scale…
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Simple Pendulum Experiment Class 11 | Labkafe
Aim: Using a simple pendulum, plot its L-T2 graph and use it to find the effective length of second’s pendulum. Apparatus: Theory: A simple pendulum consists of a heavy metallic (brass) sphere with a hook (bob) suspended from a rigid stand, with clamp by a weightless inextensible and perfectly flexible thread through a slit cork, capable…
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Parallelogram Triangle Law of vector addition Experiment Class 11 | Gravesand’s apparatus
Aim: To find the weight of a given body (Wooden Block) using parallelogram law of vectors. Apparatus: Theory : In Fig. 5.1 we see the Gravesand’s apparatus or Parallelogram apparatus. It consists of a wooden board A fixed vertically on two pillars. There are two pulleys P and Q fitted at the same level at…
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Beam Balance: Physics Experiment Class 11 to determine mass of two different objects | Physical Balance
Aim: To determine the mass of two different objects using a beam balance. Apparatus: Theory : A physical balance or Beam Balance is a weighing instrument that helps in measuring the weight (or gravitational mass) of an object by making use of the principle of moments. It consists of a metal beam B with a…
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Screw Gauge experiment class 11 PDF | Micrometer | Least Count | Labkafe
Aim: To measure (a) diameter of a given wire (b) thickness of a given sheet and (c) volume of an irregular lamina using screw gauge. Apparatus: Theory: Using Vernier Callipers we can measure length accurately up to 0.1 mm. To measure more accurately, up to 0.01 mm or 0.005 mm, we use screw gauge. A…
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Simple Pendulum Experiment Physics Practical Class 11 and 9 | Labkafe
Pendulum Experiment Physics Practical Aim: To study variation of time period of a simple pendulum experiment physics practical of a given length by taking bobs of same size but different masses and interpret the result. Apparatus: Theory: See Experiment 6. The time period (T) of a simple pendulum for oscillations of small amplitude, is given…