.1 a) What is black body and black body radiation? Write down the Plank’s Postulates and derive Plank’s energy density formula? Show that the Plank’s energy density is

formula valid for all types of wave length.

b) The effective surface temperature of the Sun is 5800K at what wave length

would you expect the Sun to radiate most strongly? (Wien’s constant = 2.898 x 10-3 m. K)​

Which force is most responsible for binding together an atom's protons and neutrons? electrostatic gravitational nuclear magnetic

(science)study the following ocean currents map. an ocean currents map is shown. on the map the locations for san diego, california and savannah, georgia are marked. there is a looping current from the north past san diego and a looping current from the south near savannah which statement is most likely correct about the average temperatures in san diego, california as compared to savannah, georgia? it is higher in savannah because of the cool ocean currents from the south. it is higher in savannah because of the warm ocean currents from the north. it is lower in san diego because of the warm ocean currents from the south. it is lower in san diego because of the cool ocean currents from the north.

Why is metal often used for cooking pan?