Harmful effects of nanoparticles C O N C EP T M AP - - - - Unit Recent developments in physics EVALUATION I Multiple Choice Questions . The particle size of ZnO material is nm. Based on the dimension it is classified as a) Bulk material b) Nanomaterial c) Soft material d) Magnetic material . Which one of the following is the natural nanomaterial.
a) Peacock feather b) Peacock beak c) Grain of sand d) Skin of the Whale . The blue print for making ultra durable synthetic material is mimicked from a) Lotus leaf b) Morpho butterfly c) Parrot fish d) Peacock feather . The method of making nanomaterial by assembling the atoms is called a) Top down approach b) Bottom up approach c) Cross down approach d) Diagonal approach . “Ski wax” is an application of nano product in the field of a) Medicine b) Textile c) Sports d) Automotive industry .
The materials used in Robotics are a) Aluminium and silver b) Silver and gold c) Copper and gold d) Steel and aluminum . The alloys used for muscle wires in Robots are a) Shape memory alloys b) Gold copper alloys c) Gold silver alloys d) Two dimensional alloys . The technology used for stopping the brain from processing pain is a) Precision medicine b) Wireless brain sensor c) Virtual reality d) Radiology . The particle which gives mass to protons and neutrons are a) Higgs particle b) Einstein particle c) Nanoparticle d) Bulk particle .
The gravitational waves were theoretically proposed by a) Conrad Rontgen b) Marie Curie c) Albert Einstein d) Edward Purcell Answers ) b ) a ) c ) b ) c ) d ) a ) c ) a ) c - - - - Unit Recent developments in physics III Long Answers . Discuss the applications of Nanomaterials in various fields. . What are the possible harmful effects of usage of Nanoparticles?
Why? . Discuss the functions of key components in Robots? .
Elaborate any two types of