Zetta- Zetta- Zetta is a decimal unit prefix in the metric system denoting a factor of 10 or . The prefix was added as an SI prefix to the International System of Units (SI) in 1991 and has the symbol Z. Zetta is evocative of the Latin numeral , meaning "seven". Therefore it was used to denote the seventh power of 1000. A prefix of the same value, "hepta", was informally introduced a few years before the promulgation of zetta. It was formed from the Greek (), also meaning "seven". "Hepta" never received official sanction and is obsolete. Zeta (), although
Roop Tera Mastana Roop Tera Mastana Roop Tera Mastana Roop Tera Mastana [}English language|English]]: Your beauty is intoxicating; Hindi: रूप tera मस्ताना) is a 1972 Bollywood suspense thriller film, produced by Baldev Pushkarna and M.M. Malhotra under the Suchitra Kala Mandir banner and directed by Khalid Akhtar. It stars Jeetendra, Mumtaz, Pran in lead roles and music composed by Laxmikant Pyarelal. Ajit, the Personal assistant to Princess Usha, does away with her and brings along a look-alike, Kiran, to pose as her for a few days. Kiran, although poor, refuses to do so, and Ajit threatens her and her family, and she reluctantly