Question

When a hot enclosure is viewed from a small opening in it, their radiations appear predominantly bright red. Now if a green glass piece is placed in the enclosure, then after some time, the glass piece will appear

• A. Green
• B. Red
• C. Black
• D. White

Answer 1

The correct option is B Red

simply apply the concept of spectrum of light when it passes from the prism it comes out in seven different color which are VIBGYOR.
so wavelength of RED is more than GREEN therefore blue will radiate more as compare to green.
${\lambda }_{green}$=495-570 nm
${\lambda }_{blue}$=620-750 nm