List of top Chemistry Questions on Heat Transfer asked in MET

In which of the following process, convection does not take place primarily?

An object is placed at a distance \(20\ \text{cm}\) from the pole of a convex mirror of focal length \(20\ \text{cm}\). The image is produced at

The heat flows through a rod of length 50 cm and area of cross-section 5 cm\(^2\). Its ends are respectively at 25°C and 125°C. The coefficient of thermal conductivity of the material of the rod is 0.092 kcal/m°C. The temperature gradient of the rod is: