Question

Two identical plates are placed on top of a snow bank on a sunny day. One is of black colour and another is of white colour. The black plate sinks deeper into the snow because:

• A. The black plate reflects light better
• B. The white plate reflects light better
• C. The black plate radiates heat better
• D. The white plate radiates heat better
• E. Both of the plates reflect light and radiate heat at the same rate

Answer 1

Answer: (C)

The black plate radiates heat better

The black plate radiates heat better that is according to Kirchoff' law which concludes that good absorbers are good radiaters ,as black colour is a good absorber of heat that's why it radiates heat better.