Relation between temperature and refractive index

Click For Summary
The relationship between temperature and the refractive index (RI) of water is minimal, with no direct correlation. Generally, the RI decreases as temperature increases, but the change is very slight. Specifically, the refractive index of water changes by less than 0.01% for each degree Celsius rise in temperature. This indicates that while there is a trend, it is not significant enough to have a major impact in practical applications. Understanding this relationship is important for precise optical measurements in varying temperatures.
Vals509
Messages
52
Reaction score
1
whats the relationship between the temperature of water and its refractive index?
 
Physics news on Phys.org
Actually there is no direct relationship between RI and temperature.
usaually the RI goes down as temperature rises but the change would be very small.
The RI of water changes less than 0.01% per degree celcius.
 
The book claims the answer is that all the magnitudes are the same because "the gravitational force on the penguin is the same". I'm having trouble understanding this. I thought the buoyant force was equal to the weight of the fluid displaced. Weight depends on mass which depends on density. Therefore, due to the differing densities the buoyant force will be different in each case? Is this incorrect?

Similar threads

Replies
3
Views
799
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 7 ·
Replies
7
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
Replies
3
Views
2K
  • · Replies 1 ·
Replies
1
Views
3K
Replies
6
Views
2K
  • · Replies 1 ·
Replies
1
Views
2K
Replies
29
Views
976