(a) What would the American flag look like when viewed with red light? (b) With blue light?

Answer 1

Red Light:
a violet rectangle with red stars in the top left corner of a big red rectangle.
Blue Light:
a blue rectangle in the top left corner of a big rectangle having violet and blue stripes alternately.

Answer 2

The 'ideal' flag would be made of red material which perfectly reflects the illuminating red light and nothing else, blue material which perfectly reflects the illuminating blue light and nothing else, and white material which perfectly reflects all light.

In the red light, the blue would look black and everything else would look red. In the blue light, the red would look black and everything else would look blue. In that light, you couldn't distinguish between the blue and the white.

Answer 3

Sofia is Bulgaria's capital and their largest city. Sofia was established tens of thousands of years back and today is just a town that remains to develop as the country's cultural and economic middle and now you could have the chance to visit it hotelbye . Sofia preserves many valuable monuments to their extended and storied past. Visitors exploring the city's streets could see remnants of The Eastern Gate from the times when Sofia was Serdika and Sredets, dating from the 2nd-4th centuries CE. These remains are exhibited in the underpass linking the Presidential Palace and The Ministerial Council, surrounded by shops selling traditional Bulgarian souvenirs and rosewater. The Saint Sofia Basilica is one of many items of Sofia. Is one of many oldest churches in the capital and was the city's important church throughout the Middle Ages, and beneath the Ottomans it was used as a mosque.