Tag: Practical class 11

Macro Nutrients Tests – Food tests for class 11-12 | Labkafe

Jan 17, 2022

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by

Swarna Karmakar

in Biology, Experiments

Among the major laboratory experiments in the class XI-XII biology practical are the Macro Nutrient Tests. Also commonly known as food tests for class 11 or 12, this is actually a group of five tests ‒ one each for starch, glucose, sucrose, protein, and fat. Today, we will describe each of those tests for your…
Screw Gauge experiment class 11 PDF | Micrometer | Least Count | Labkafe

Jul 23, 2021

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by

Soumen Mondal

in Experiments, Learning, Physics

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…