Questions:
1. In 2000, the Reserve Bank of India (RBI) incorporated a feature in the then 500- and 1,000-rupee notes. On the obverse of each note, the note’s numerical value was printed such that, when the note was flat, the numbers were green but blue when observed from an angle. Name the ink used to print this feature.
2. On many currency notes, including the new rupee notes the RBI released in 2016, some designs are printed such that they rise a little over the rest of the note’s surface. Such printing is called ________ printing, from the Italian word for ‘carving’. Fill in the blank.
