Q. The principle on which a disappearing filamment type pyrometer works is known as (Solved)
1. Wien's law
2. Peltier effect
3. Kirchhoff's law
4. Seeback effect
5. Fourier's law
- a. Wien's law
1. Wien's law
2. Peltier effect
3. Kirchhoff's law
4. Seeback effect
5. Fourier's law