Consider the following statement pertaining to large heat transfer rate using fins:
1. fins should be used on the side where the heat transfer coefficient is small.
2. long and thick fins should be used
3. Short and thin fins should be used
4. Thermal conductivity of fin material should be large.
Of these
1
1,2 & 3 are correct
2
1,2 & 4 are correct
3
2,3 & 4 are correct
4
1,3 & 4 are correct