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Sanam • asked a question

How to make a dynamic website ? What language should I learn?

First learn basic HTML, then CSS and responsive CSS for Static websites and thereafter JavaScript and PHP for dynamic pages. If you also want to learn jQuery for more better works learn it at the same time with JavaScript

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grishma gautam • asked a question

In a stormy day a boy observes a lightening flash which is followed by a thunder 3 sec. later. How would you estimate the distance of the lightening strike from the boy? ( given, velocity of sound...

Time taken (t) = 3 sec
Velocity of sound (v) = 332 m/s
Distance travelled (d) = ?

We know,

d = v x t = 332 x 3 = 996 m

Hence, the source of thunder is about 996 m far from the boy.

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Bishesh Gautam • asked a question

What does dextrorotatory and dextrorotation mean?

Dextrorotatory and dextrorotation are terms used in chemistry to describe the direction in which a substance rotates plane-polarized light. When a substance is said to be dextrorotatory, it means that it rotates plane-polarized light to the right or clockwise direction, whereas when it is levorotatory, it rotates plane-polarized light to the left or counterclockwise direction.

The terms "dextrorotatory" and "levorotatory" come from the Latin words "dexter" meaning "right" and "lævus" meaning...

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