Concepts Of Physics MCQ Edition [Volume 2]
- Exam
- Concepts Of Physics MCQ Edition [Volume 2]
- Subject
- Physics
- Chapter
- Heat and Temperature
Concepts Of Physics MCQ Edition [Volume 2] · Physics · Heat and Temperature
The water temperature at the surface of a deep lake is 2^ ^ ^ C ....
The water temperature at the surface of a deep lake is 2^{}^{{}^{\circ}} C. What is the expected temperature at the bottom?
Options
- A0^{}^{{}^{\circ}} C
- B4^{}^{{}^{\circ}} C
- C6^{}^{{}^{\circ}} C
- D2^{}^{{}^{\circ}} C
Correct answer
B. 4^{}^{{}^{\circ}} C
Step-by-step solution
Water exhibits anomalous expansion, having its maximum density at 4^{}^{{}^{\circ}} C.
In a deep lake, the densest water sinks and settles at the bottom.
When the surface temperature drops below 4^{}^{{}^{\circ}} C (such as 2^{}^{{}^{\circ}} C), the water becomes less dense and remains at the surface.
Therefore, the water at the bottom of the lake remains at 4^{}^{{}^{\circ}} C.
In a deep lake, the densest water sinks and settles at the bottom.
When the surface temperature drops below 4^{}^{{}^{\circ}} C (such as 2^{}^{{}^{\circ}} C), the water becomes less dense and remains at the surface.
Therefore, the water at the bottom of the lake remains at 4^{}^{{}^{\circ}} C.