Physics, asked by parimeshram040, 3 months ago

what is mean by convection of heat ? prabuddha are you online?​

Answers

Answered by asinsarabiga
5

Answer:

When a fluid, such as air or a liquid, is heated and then travels away from the source, it carries the thermal energy along. This type of heat transfer is called convection. The fluid above a hot surface expands, becomes less dense, and rises.

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Answered by parimeshram08
1

Answer:

In the right angled triangle EDF, ∠D = 90∘. Hence, side EF is the hypotenuse.

According to Pythagoras' theorem,

l(EF)2 = l(ED)2 + l(DF)2

⇒(17)2 = (x)2 + (8)2

⇒289 = x2 + 64

⇒x2 = 289 − 64

⇒x2 = 225

⇒x2 = (15)2

⇒x = 15

∴ the value of x is 15.

Explanation:

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