- Expands
- Contracts
- It expands or contracts according to its diameter
- It expands or contracts according to its coefficient of expansion
Answer: Option 1
The hole size will increase because in expansion the size between two molecules do not increase so when the molecules on the outer edge move outward. Due to expansion, the size of the hole will also increase so as to compensate the distance change between the molecules.
Answer: Option 1 The metal ball can be considered to be made up of several layers of thinner ones. On heating each of these layers will increase in radius. As...
1 Answers 1 viewsAnswer: Option 1 When a metal plate with a circular hole at its centre is heated, definitely along with the areal expansion of the plate the diameter of the circular...
1 Answers 1 viewsAnswer: Option 3 The emission spectrum of a chemical element or chemical compound is the spectrum of frequencies of electromagnetic radiation emitted due to an atom or molecule making a...
1 Answers 1 viewsAnswer: Option 2 Let'
1 Answers 2 viewsAnswer: Option 1 Assuming the disc is uniform and isotropic (the same in different directions), the hole will expand in the same ratio as the metal. It is because the...
1 Answers 1 viewsAnswer: Option 2 Let'
1 Answers 1 viewsAnswer: Option 2 Let'
1 Answers 1 viewsAnswer: Option 2 Let'
1 Answers 1 viewsAnswer: Option 4 Let'
1 Answers 1 views