Objective : To plot Forward & Reverse Characteristics of a Vacuum Photo cell & to Calculate its stopping Potential.
Features : Dual range Power Supply 0-1VDC/ 0-50 VDC with one dual range voltmeter & one sensitive micrometer of 100μA. Photo cell mounted in wooden box having window for injecting light, variable intensity light source & three colored filters
Author: admin
PLANKTON NET – GUPTA BRAND 9008019
Made of No. 12 standard silk bolting cloth, 125 mesh per sq. inch 89 cm. Long net suspended by muslin reinforcement to a 24 cm. dia. ring. Three braided leaders attached to swivel front. Tail of bag with 2 cm. opening closed by trying cloth tape placing glass vial
Plant Anatomy ( 50000619 )
PLANT CELL 6003081
Enlarged many times, showing the microscopic structure, with key card. Overall dimensions 190 x 320 x 70 mm approx.