physics

P. C. S. Devara

P. C. S. Devara is a physics topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand P. C. S. Devara rather than just read about it. In short: Panuganti China Sattilingam Devara, also known as P. C.

Key takeaways

P. C. S. Devara belongs to physics; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect P. C. S. Devara to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of P. C. S. Devara from memory before moving on to harder problems.

Reference excerpt

Panuganti China Sattilingam Devara, also known as P. C. S. Devara, is an Indian atmospheric scientist and physicist. His research focuses on lidar (light radar) technology, radio and optical remote sensing, climatology, atmospheric aerosols and climate dynamics. Devara has served as President of the Indian Aerosol Science and Technology Association (IASTA). Devara worked for over thirty-five years at the Indian Institute of Tropical Meteorology (IITM), Pune, where he led the Physical Meteorology and Aerology Division and later served as Director (Acting) and Scientific Advisor. Since 2014, he has been Director and Head of the Amity Centre of Ocean–Atmospheric Science and Technology (Amity COAST) at Amity University, Haryana (Gurugram/Manesar campus).

Early life and education Devara received his undergraduate degree with first-class honours in Physics from Andhra University. In 1974, he completed his postgraduate degree in Physics from the same university. In 1979, he received a doctoral degree in Physics from Andhra University under the guidance of Iqhbal Ahmed.

Research and career Devara's work focuses on atmospheric optics, radiation, and remote sensing, including the characterization of atmospheric aerosols and trace gases, and their influence on weather and climate processes. He has contributed to the development of optical and radar remote sensing techniques for studying aerosols, trace gases, and state variables in the troposphere and lower stratosphere. In 1979, Devara received a Young Scientist Award from the Government of Andhra Pradesh Akademi of Sciences. He joined IITM in 1980 as Senior Scientific Officer and became Head of the Physical Meteorology and Aerology Division. In 2005, he became Acting Director of IITM and served as Scientific Advisor until 2014. In 2014, Devara joined Amity University, Haryana as Director and Head of the Amity Centre of Ocean–Atmospheric Science and Technology (ACOAST). He also heads related centres including the Amity Centre for Environmental Science and Health and the Amity Centre for Air Pollution Control. His research at Amity focuses on aerosol–cloud–climate interactions, black carbon dynamics, air pollution monitoring, and satellite-ground data integration for climate and health impact assessments. Devara led collaborative projects with NASA, (AERONET–MAIA program), IITM Pune, and Emory University (USA) on satellite calibration/validation and PM2.5 health mapping. His recent publications include a 2024 study in Heliyon on black carbon aerosol synthesis over rural Haryana. During the Odd-Even Campaign in New Delhi (2016), Devara led a team from Amity University in collaboration with ARIES, Nainital and IITM-Delhi to assess the policy's impact on regional air quality.

Awards and recognition Fellow of the Asian Aerosol Research Assembly (AARA), 2015. Fellow of the Andhra Pradesh Akademi of Sciences (APAS), Hyderabad. Fellow of the Society of Earth Scientists (SES), India. Fellow of the Maharashtra Academy of Sciences (MASc). President of the Indian Aerosol Science and Technology Association (IASTA), 2008–2023. Golden Jubilee and Silver Jubilee Awards, IITM, Pune. “Asia’s Top-50 Scientist Award”, 2022. “Kalam Research Award”, 2023.

References

Illustrations

Worked examples

Example 1 — a first encounter with P. C. S. Devara

Start with the simplest possible case. Write down what P. C. S. Devara claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In physics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to P. C. S. Devara before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about P. C. S. Devara ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of P. C. S. Devara

In research: P. C. S. Devara appears in physics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses P. C. S. Devara in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: P. C. S. Devara is common in secondary-school and first-year university syllabi. It links to neighbouring topics Indian physicists, Living people, Scientists from Andhra Pradesh, so understanding it makes those chapters shorter.
In everyday life: Look for P. C. S. Devara outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study P. C. S. Devara in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what P. C. S. Devara means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain P. C. S. Devara out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is P. C. S. Devara in simple terms?

Panuganti China Sattilingam Devara, also known as P. C.

Why does P. C. S. Devara matter?

Because it connects several physics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study P. C. S. Devara?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on P. C. S. Devara.