Question

Explain about it in briefly? ​

Answer 1

Answer:

nice handwriting

Explanation:

Answer 2

Explanation:

-------Vernier caliper: a measuring device that consists of a main scale with a fixed jaw and a sliding jaw with an attached vernier.

-------Screw gauge: Screw Gauge is a mechanical tool which facilitates measuring diameter or radius or thickness of a thin wire or thickness of thin metal sheet.

------Newton's three laws of motion may be stated as follows:

1.Every object in a state of uniform motion will remain in that state of motion unless an external force acts on it.

2.Force equals mass times acceleration

[ $ f(t)=m\,a(t)$ ].

3.For every action there is an equal and opposite reaction.

----- Reflection of light: When a ray of light falls on any object (polished, smooth, shiny object), light from that object bounces back those rays of light to our eyes and this is known as “Reflection” or “Reflection of Light”.

----- Buoyancy and Archimedes’ Principle:

The buoyant force on an object can be calculated using the Archimedes principle

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