641. The Rupee Symbol was created by?
D Udaya Kumar
642. Programme 150 is the first Robert developed by ?
C-DAC
643. During which period of evolution man discovered the use of jute and began to use cloth made of jute?
Neolithic period
644. Which natural region is the best known for the production of grapes?
Mediterranean
645. In which city of India, the diurnal range of temperature is maximum?
New Delhi
646. Who is the author of “Kuppukai”?
Balamani Amma
647. Who invented the laser?
Charles H. Townes
648. Vidyavinodini, the second literary magazine, was published in 1889 from?
Thrissur {under the editorship of CP. Achutamenon and Vengayil Kunhirama Nayanar}
649. In which of the Five Year Plans, preference was given to the weaker sections of the society?
Fifth
650. The year in which RavindranadaTagore visited Sree Narayana Guru was?
1922