Question

describe the mode of energy transformation in a mechanical clock physics chapter 3 energy and it's forms

Answer 1

Short version: The energy transformation in the sun is primarily the change of nuclear energy to light energy. More technical: The sun is said to "burn hydrogen" but what that really means is that near the center of the sun there is enough temperature and pressure to cause the fusion of hydrogen nuclei (protons) into helium nuclei (two protons and two neutrons). The fusion (not fission) reaction energy give off energy in a complex way that includes heat and light. The light works its way out from the center of the sun to the surface and eventually out of the surface into space. That is the sunlight we see as well as some light that is outside our range of vision. The light is electromagnetic energy. Technical Point: We can correctly say that the energy transformation inside the sun is the transformation associated with the fusion reaction that converts hydrogen to helium giving off heat and light. There is a lot more going on if you want to study the details of the nuclear physics, plasma physics and hydrodynamics that is involved. Finally, this discussion only applies to the Sun. Other stars do this too, but there is a lot more that they do as well.