DMPQ: What is fuel cell? How Hydrogen fuel cell work? ( SCIENCE)

A fuel cell is a device which produces electric energy, through a chemical reaction. Fuel cells use positively charged ion(Hydrogen) and an oxidising agent (oxygen).There are many types of fuel cells, but they all consist of a cathode,an anode, and an electrolyte that allows positively charged( hydrogen) ions to move between the two sides of … Read more

DMPQ- How do extremophiles like some bacteria and archaeans survive in environments without oxygen?

Anaerobic respiration occurs without oxygen and involves the consumption of another molecule (nitrate, sulfur, iron, carbon dioxide, etc.) instead of oxygen. Unlike in fermentation, anaerobic respiration involves the formation of an electrochemical gradient by an electron transport system that results in the production of a number of ATP molecules. Unlike in aerobic respiration, the final … Read more

Quick Revision- pH scale and its day to day application

Quick Revision Topic:                pH scale and its day to day application   Definition:                  pH scale is the scale developed to measure the concentration of Hydrogen ion in a solution. Here ‘p’ in pH implies ‘potenz’ in german. The pH of a neutral solution is 7. for Acidic solution pH is less than 7 and … Read more

DMPQ- Mention the strategies angaist Cyber Crime. Critically evaluate them and give suggestive measures.

Creating a secure cyber ecosystem To designate a National nodal agency to coordinate all matters related to cyber security in the country, with clearly defined roles & responsibilities. To encourage all organizations, private and public to designate a member of senior management, as Chief Information Security Officer (CISO), responsible for cyber security efforts and initiatives. … Read more

DMPQ:What is nano-technology? Write in brief about its possible applications

Nanotechnology relates to the technology of rearranging and processing of atoms and molecules to fabricate material to Nano specifications such as nano meters, the technology will enable scientist and engineers to see and manipulate matter at the molecular level atom by atom create new structure with fundamentally new molecular organic material and exploit the novel … Read more

DMPQ-Explain the concept of functioning of Thermoelectric Generator.

Thermoelectric power generators are the devices which used to convert temperature difference between two junctions into electrical energy. A working of thermoelectric generator is based on Seebeck effect.  According to which, a loop of two dissimilar metal develops an emf when the two junctions are kept at different temperature. That is why it is also referred as Seebeck … Read more

DMPQ- What is MTCR (Missile technology control regime) ? What advantages India have after becoming it’s member ?

. Established in April 1987, the voluntary Missile Technology Control Regime (MTCR) aims to limit the spread of ballistic missiles and other unmanned delivery systems that could be used for chemical, biological, and nuclear attacks. The regime urges its 35 members, which include most of the world’s key missile manufacturers, to restrict their exports of … Read more

DMPQ- Write Short Note on National Supercomputing Mission. (SCIENCE)

The Mission envisages empowering our national academic and R&D institutions spread over the country by installing a vast supercomputing grid comprising of more than 70 high-performance computing facilities. These supercomputers will also be networked on the National Supercomputing grid over the National Knowledge Network (NKN). The Mission would be implemented and steered jointly by the … Read more