Short answer questions on Solid state physics

Click For Summary
Platinum appears silver and shiny due to its high reflectivity and metallic luster. Aluminum oxide's color variations, such as transparent, red, or blue, result from different impurities and crystal structures. Quartz is transparent because of its crystal structure, which allows light to pass through without significant scattering. Participants are reminded to provide their own attempts at answering these questions to receive further assistance. Engaging with the material is essential for effective learning in solid state physics.
closed
Messages
2
Reaction score
0
1. Platinum is silver and shiny. Why?
2. Aluminum oxide can be either transparent, red or blue. How?
3. Quartz is transparent. Why?
 
Physics news on Phys.org
Welcome to the PF. You must show your own attempt at answering these homework/coursework questions before we can provide any tutorial assistance -- that's in the PF Rules link at the top of the page.

So what are your answers?
 
Thread 'Correct statement about size of wire to produce larger extension'

Thread 'Correct statement about size of wire to produce larger extension'

The answer is (B) but I don't really understand why. Based on formula of Young Modulus: $$x=\frac{FL}{AE}$$ The second wire made of the same material so it means they have same Young Modulus. Larger extension means larger value of ##x## so to get larger value of ##x## we can increase ##F## and ##L## and decrease ##A## I am not sure whether there is change in ##F## for first and second wire so I will just assume ##F## does not change. It leaves (B) and (C) as possible options so why is (C)...
View full post »

Similar threads

Solid State Should I buy Kittel's Introduction to Solid State Physics?
  • · Replies 8 ·
Replies
8
Views
3K
How Does the Equation of State for a Solid Change with Temperature and Pressure?
  • · Replies 5 ·
Replies
5
Views
3K
Solid State Is Adrianus J. Dekker forgotten or irrelevant?
  • · Replies 7 ·
Replies
7
Views
2K
Undergrad Understanding Diffraction Condition in Kittle's Intro to Solid State Physics
  • · Replies 1 ·
Replies
1
Views
2K
Introduction level Solid State - Mean free time/path & lattice spacing
  • · Replies 1 ·
Replies
1
Views
3K
Undergrad What is the relation between scattering and mobility in solid state physics?
  • · Replies 1 ·
Replies
1
Views
3K
Regarding Kittel's solid state physics 167 page
  • · Replies 3 ·
Replies
3
Views
1K
Solid State Book for graduate solid state physics
  • · Replies 7 ·
Replies
7
Views
5K
Undergrad How to find the change in volume of a solid to a liquid
  • · Replies 3 ·
Replies
3
Views
1K
Help with neutron scattering in solid state physics
  • · Replies 11 ·
Replies
11
Views
2K