Physics, asked by kmanwarsadath, 10 months ago

Figure 1 show a metallic disc with a hole at its centre. Which one of the figures from 2 to 5 schematically

shows how the disc will appear after it is uniformly heated?

Figure 1 Figure 2 Figure 3 Figure 4 Figure 5

Answers

Answered by abhikul29

Answer:

Imagine that the hole is filled with another disk of exactly the same diameter as the hole (initially D2) and made from the same material. Once both discs heat up, they will expand as if they were a single solid object. Since the small disk expands, we conclude that the hole in the large disc must expand too, D3>D2.

Previous Question

Next Question

Figure 1 show a metallic disc with a hole at its centre. Which one of the figures from 2 to 5 schematicallyshows how the disc will appear after it is uniformly heated?Figure 1 Figure 2 Figure 3 Figure 4 Figure 5

Answers

Figure 1 show a metallic disc with a hole at its centre. Which one of the figures from 2 to 5 schematically

shows how the disc will appear after it is uniformly heated?

Figure 1 Figure 2 Figure 3 Figure 4 Figure 5