DMPQ- What is LED? Why its popularity increasing?

A Light Emitting Diode (LED) is one of the latest inventions and is extensively used these days. From your cell phone to the large advertising display boards, the wide range of applications of these magical light bulbs can be witnessed almost everywhere. Today their popularity and applications are increasing rapidly due to some remarkable properties … Read more

DMPQ- Write a short note on NISAR.

Using advanced radar imaging that will provide an unprecedented, detailed view of Earth, the NASA-ISRO Synthetic Aperture Radar, or NISAR, satellite is designed to observe and take measurements of some of the planet’s most complex processes. These include ecosystem disturbances, ice-sheet collapse, and natural hazards such as earthquakes, tsunamis, volcanoes and landslides. Data collected from … Read more

DMPQ- In the wake of COVID-19, failure of world leaders and institution is blatantly visible. Comment

Virus is a biological pandemic and it does not know the political boundary and in the era of globalisation it is a dauting task to control such pandemic without having coordinated global action which is still missing. Every nation is on protectionist mode and taking action without reporting to global agencies. WHO failed to create … Read more

DMPQ: Explain the following terms:(Science)

A) Patents: This refers to innovations – new or improved product and processes which are meant for industrial applications.  This is a territorial right which requires registration for a limited time.  Patent is a contract between an inventor as an individual and the society as a whole.  The inventor has exclusive right to prevent anybody … Read more

DMPQ-Discuss the functioning of Fuel cell and how it is going the serve the problem of energy deficiency and climate change.

A fuel cell uses the chemical energy of hydrogen or another fuel to cleanly and efficiently produce electricity. If hydrogen is the fuel, electricity, water, and heat are the only products. Fuel cells are unique in terms of the variety of their potential applications; they can provide power for systems as large as a utility … Read more

DMPQ:Write a short note on Totipotency.

Many somatic plant cells, including some fully differentiated types (e.g. leaf mesophyll),provided they contain intact nuclear, plastid and mitochondrial genomes, have the capacity to regenerate into whole plants. This phenomenon is totipotency.Totipotent cells from plants have been used in tissue-culture techniques to produce improved plant materials that are pathogen-free and disease-resistant. Totipotent cells fromanimals are … Read more

DMPQ- What do you mean by Linear motion

Linear motion, also called uniform motion or rectilinear motion, motion in one spatial dimension.  According to Newton’s first law (also known as the principle of inertia), a body with no net force acting on it will either remain at rest or continue to move with uniform speed in a straight line, according to its initial … Read more