ECONOMICS (CBSE/UGC NET)

Detailed explanation-1: -When you tilt the bill, the denomination in the right bottom corner should change colors between copper and green. If the numbers do not change colors when you tilt the bill, it is counterfeit currency .

Detailed explanation-2: -Hold the bill up to a light to check for a watermark. A watermark bearing the image of the person whose portrait is on the bill can be found on all $10, $20, $50, and $100 bills series 1996 and later, and on $5 bills series 1999 and later.

Detailed explanation-3: -Federal Reserve Indicators For denominations $5, $10, $20, $50, and $100, the note has a letter and number designation that corresponds to one of the 12 Federal Reserve Banks. The letter of each indicator matches the second letter of the serial number on the note.

Detailed explanation-4: -Each note of the same denomination has its own serial number. Up through Series 1995, all Federal Reserve notes had serial numbers consisting of one letter, eight digits, and one letter, such as A12345678B; now only the $1 and $2 notes still use this form.

Detailed explanation-5: -Hold the note to light to see an embedded thread running vertically to the left of the portrait. The thread is imprinted with the letters USA and the numeral 100 in an alternating pattern and is visible from both sides of the note. The thread glows pink when illuminated by ultraviolet light.