A. 1610
B. 1510
C. 1660
D. None of above
192. The nucleus in the cell was discovered by?
A. Robert Brown in 1831
B. Robert Hooke in 1665
C. Robert Brown in 1665
D. Robert Hooke in 1831
193. Magnification of a microscope is calculated by?
A. Power of eye piece x magnifying power of it's objetive
B. Power of eye piece - magnifying power of it's objetive
C. Power of eye piece + magnifying power of it's objetive
D. None of above
194. The term "CELL" was first used by?
A. Robert Brown in 1831
B. Robert Hooke in 1665
C. Robert Brown in 1665
D. Robert Hooke in 1831
195. Which scientist observed that the nucleus was surrounded by a fluid in the cell?
A. Robert Brown in 1831
B. Robert Hooke in 1665
C. Schwann in 1839
D. Robert Hooke in 1831
196. Cell Theory was proposed by?
A. Robert Hooke & Robert Brown
B. Robert Hooke & Schleiden
C. Schleiden & Schwann
D. Robert Hooke & Schwann
197. According to Cell Theory?
A. Not all organism are composed of cells
B. There is no intreaction between different cell unit
C. Cell is "de novo" structure, could arise form non-cellular
D. Cell can arise only by division of pre-existing cell
198. The microscope in which visible light is used as source of illumination is?
A. Light microscope
B. X-ray microscope
C. Electron microscope
D. U-V ray microscope
199. The Electron microscope has been designed by?
A. Jensen & Hand of Holland
B. Schleiden & Schwann of Germany
C. Knoll & Rusk of Germany
D. None of above
200. Microscope unaffected by magnetic field is are?
A. Electron microscope
B. Transmission Elecron microscope
C. Scanning Electron Microscope
D. Light Microscope