Question

A metallic ball has spherical cavity at its centre. If the ball is heated, what happens to the cavity?
a)it's volume decreases
b)it's volume remains constant
c)it's volume increases
d)nothing can be devided

Answer 1

Heya!!

Volume of cavity increases because of expansion of metallic ball.

So,(C)It's volume increases is ur answer

Hope it helps✌️✌️

Answer 2

Answer:

From the given options, the correct option is C) it's volume increases.

A metallic ball has spherical cavity at its center. If the ball is heated it's volume increases.

Explanation:

• The metal ball can be thought of as being composed of several layers of thinner ones.
• When heated, each of these layers expands in radius. As the radius of the innermost layer increases, so does the volume within it, i.e. the volume of the hollow portion.
• The metal ball can be thought of as being composed of several layers of thinner ones.
• When heated, each of these layers expands in radius.
• As the radius of the innermost layer increases, so does the volume of the hollow portion.

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