A boy sitting on a chair beside window, there is e desk and a table beside the w

A boy sitting on a chair beside window, there is e desk and a table beside the window,, A prism is on the table. It is the last moment of today's Afternoon, there is cloudy purple sky. the light of the sun goes through the prism and goes out with rainbow colour, The boy wearing a glass, Sunlight reflects his glass. he is seeing outside the window,