Question : The interfering fringes formed by a thin oil film on water are seen in yellow light of sodium lamp. We find the fringes
A. coloured
B. black and white
C. yellow and black
D. coloured without yellow
Answer:A
Question : The interfering fringes formed by a thin oil film on water are seen in yellow light of sodium lamp. We find the fringes
A. coloured B. black and white C. yellow and black D. coloured without yellow