A. K. Tiwari Physics Classes

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A. K. Tiwari Physics Classes Fantastic atmosphere for study......

Physics for NEET, JEE, 11th & 12th Mathematics for 11th, 12th, 9th & 10th
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Great performance by the students of A.K. TIWARI PHYSICS AND MATHS CLASSES.....New batches starting soon.....join ASAP.....
30/04/2024

Great performance by the students of A.K. TIWARI PHYSICS AND MATHS CLASSES.....New batches starting soon.....join ASAP.....

Great performance by the students of Hind Gyanodaya hr sec school, Tilak Nagar, rewa......special mention....Ayush Mishr...
24/04/2024

Great performance by the students of Hind Gyanodaya hr sec school, Tilak Nagar, rewa......special mention....Ayush Mishra for obtaining 93% in class 10th board examination....Mukul Soni for obtaining 92% in class 12th board examination.....other students also done very well.... result is so excellent..... congratulations to all of them on the behalf of school management.........

Join A.K. TIWARI PHYSICS CLASSES now... We just see the opportunity in every student and take them to their desired goal...
13/07/2022

Join A.K. TIWARI PHYSICS CLASSES now... We just see the opportunity in every student and take them to their desired goal...

Join A.K. TIWARI PHYSICS CLASSES for the best possible result.....we just realised you, your true potential....
13/07/2022

Join A.K. TIWARI PHYSICS CLASSES for the best possible result.....we just realised you, your true potential....

Sir Joseph John Thomson(18 December 1856 – 30 August 1940) was a British physicist and Nobel Laureate in Physics, credit...
24/04/2022

Sir Joseph John Thomson(18 December 1856 – 30 August 1940) was a British physicist and Nobel Laureate in Physics, credited with the discovery of the electron, the first subatomic particle to be discovered.

In 1897, Thomson showed that cathode rays were composed of previously unknown negatively charged particles (now called electrons), which he calculated must have bodies much smaller than atoms and a very large charge-to-mass ratio. Thomson is also credited with finding the first evidence for isotopes of a stable (non-radioactive) element in 1913, as part of his exploration into the composition of canal rays (positive ions). His experiments to determine the nature of positively charged particles, with Francis William Aston, were the first use of mass spectrometry and led to the development of the mass spectrograph.

Vikram Ambalal Sarabhai (12 August 1919 – 30 December 1971) was an Indian physicist and astronomer who initiated space r...
24/04/2022

Vikram Ambalal Sarabhai (12 August 1919 – 30 December 1971) was an Indian physicist and astronomer who initiated space research and helped develop nuclear power in India. He was honoured with Padma Bhushan in 1966 and the Padma Vibhushan (posthumously) in 1972. He is internationally regarded as the Father of the Indian Space Program.

Known as the cradle of space sciences in India, the Physical Research Laboratory (PRL) was founded in 1947 by Vikram Sarabhai. PRL had a modest beginning at his residence, the "RETREAT", with research on cosmic rays. The institute was formally established at the M.G. Science Institute, Ahmedabad, on 11 November 1947 with support from the Karmkshetra Educational Foundation and the Ahmedabad Education Society. Prof. Kalpathi Ramakrishna Ramanathan was the first Director of the institute. The initial focus was research on cosmic rays and the properties of the upper atmosphere. Research areas were expanded to include theoretical physics and radio physics later with grants from the Atomic Energy Commission. He led the Sarabhai family-owned business conglomerate. His interests varied from science to sports to statistics. He set up the Operations Research Group (ORG), the first market research organization in the country. Most notable among the many institutes he helped set up are the Nehru Foundation for Development in Ahmedabad, the Indian Institute of Management Ahmedabad (IIMA), the Ahmedabad Textile Industry's Research Association (ATIRA) and the (CEPT). Along with his wife Mrinalini Sarabhai, he founded the Darpana Academy of Performing Arts. Other projects and institutions initiated or established by him include the Fast Breeder Test Reactor (FBTR) in Kalpakkam, Variable Energy Cyclotron Project in Calcutta, Electronics Corporation of India Limited (ECIL) in Hyderabad and Uranium Corporation of India Limited (UCIL) in Jaduguda, Jharkhand. Sarabhai started a project for the fabrication and launch of an Indian satellite. As a result, the first Indian satellite, Aryabhata, was put in orbit in 1975 from a Russian cosmodrome. He was the founder of Indian Space Research Organisation.

Death
On 30 December 1971, Sarabhai was to review the SLV design before his departure for Bombay the same night. He had spoken to A. P. J. Abdul Kalam on the telephone. Within an hour of the conversation, Sarabhai died at the age of 52 due to cardiac arrest in Trivandrum (now Thiruvananthapuram). His body was cremated in Ahmedabad.

Satyendra Nath Bose (1 January 1894 – 4 February 1974) was an Indian mathematician and physicist specialising in theore...
24/04/2022

Satyendra Nath Bose (1 January 1894 – 4 February 1974) was an Indian mathematician and physicist specialising in theoretical physics. He is best known for his work on quantum mechanics in the early 1920s, collaborating with Albert Einstein in developing the foundation for Bose–Einstein statistics and the theory of the Bose–Einstein condensate. A Fellow of the Royal Society, he was awarded India's second highest civilian award, the Padma Vibhushan, in 1954 by the Government of India.

The class of particles that obey Bose–Einstein statistics, bosons, was named after Bose by Paul Dirac.

A polymath, he had a wide range of interests in varied fields, including physics, mathematics, chemistry, biology, mineralogy, philosophy, arts, literature, and music. He served on many research and development committees in sovereign India.

In condensed matter physics, a Bose–Einstein condensate (BEC) is a state of matter that is typically formed when a gas of bosons at low densities is cooled to temperatures very close to absolute zero (−273.15 °C or −459.67 °F). Under such conditions, a large fraction of bosons occupy the lowest quantum state, at which point microscopic quantum mechanical phenomena, particularly wavefunction interference, become apparent macroscopically. A BEC is formed by cooling a gas of extremely low density (about 100,000 times less dense than normal air) to ultra-low temperatures.

This state was first predicted, generally, in 1924–1925 by Albert Einstein following and crediting a pioneering paper by Satyendra Nath Bose on the new field now known as quantum statistics.

Sir Chandrasekhara Venkata Raman(7 November 1888 – 21 November 1970) was an Indian physicist known for his work in the f...
24/04/2022

Sir Chandrasekhara Venkata Raman(7 November 1888 – 21 November 1970) was an Indian physicist known for his work in the field of light scattering. Using a spectrograph that he developed, he and his student K. S. Krishnan discovered that when light traverses a transparent material, the deflected light changes its wavelength and frequency. This phenomenon, a hitherto unknown type of scattering of light, which they called "modified scattering" was subsequently termed the Raman effect or Raman scattering. Raman received the 1930 Nobel Prize in Physics for the discovery and was the first Asian to receive a Nobel Prize in any branch of science.

Raman scattering or the Raman effect is the inelastic scattering of photons by matter, meaning that there is both an exchange of energy and a change in the light's direction. Typically this effect involves vibrational energy being gained by a molecule as incident photons from a visible laser are shifted to lower energy. This is called normal Stokes Raman scattering. The effect is exploited by chemists and physicists to gain information about materials for a variety of purposes by performing various forms of Raman spectroscopy. Many other variants of Raman spectroscopy allow rotational energy to be examined (if gas samples are used) and electronic energy levels may be examined if an X-ray source is used in addition to other possibilities. More complex techniques involving pulsed lasers, multiple laser beams and so on are known.

Light has a certain probability of being scattered by a material. When photons are scattered, most of them are elastically scattered (Rayleigh scattering), such that the scattered photons have the same energy (frequency, wavelength and color) as the incident photons but different direction. Rayleigh scattering usually has an intensity in the range 0.1% to 0.01% relative to that of a radiation source. An even smaller fraction of the scattered photons (approximately 1 in 1 million) can be scattered inelastically, with the scattered photons having an energy different (usually lower) from those of the incident photons—these are Raman scattered photons. Because of conservation of energy, the material either gains or loses energy in the process.

The Raman effect is named after Indian scientist C. V. Raman, who discovered it in 1928 with assistance from his student K. S. Krishnan. Raman was awarded the 1930 Nobel Prize in Physics for his discovery of Raman scattering. The effect had been predicted theoretically by Adolf Smekal in 1923.

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Near Hind Gyanodaya Hr Sec School, Tilak Nagar
Rewa

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