What does the colour of star indicates? Distance from the Sun B. Lighting or glow C. Distance from the earth D. Temperature Ans: D Explanation: The colour of a star is an indication of its brightness, temperature, and age. Chandrasekhar limit B. Eddington limit C. Hoyle limit D. Fowler limit Ans: A Explanation: The Chandrasekhar limit is the maximum mass possible for a star, such that it remains a stable white dwarf star. Ozone B. Black hole C. Rainbow D.
Comet Ans: B Explanation: A black hole is a region of space-time exhibiting such strong gravitational effects that nothing—not even particles and electromagnetic radiation such as light—can escape from inside it. V Raman B. J Bhabha C. S Chandrasekhar D. Codes: A. A is true but R is false D. Mars B. Earth C. Jupiter D. Sirius B. Proxima Centauri C.
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Static electricity and magnetism c. All electric appliances, dynamos, electric power stations, modern electronics , including electric lighting , television , electric heating , transcranial magnetic stimulation , deep brain stimulation , magnetic tape , loudspeaker , and the compass and lightning rod. Optics , hence fiber optic cable s , modern intercontinental communications , and cable TV and internet. Hygiene , leading to decreased transmission of infectious diseases; antibodies , leading to techniques for disease diagnosis and targeted anticancer therapies.
Leading to the elimination of most infectious diseases from developed countries and the worldwide eradication of smallpox. Solar cells , hence solar power , solar powered watches , calculators and other devices. The strange orbit of Mercury and other research leading to special and general relativity Satellite-based technology such as GPS , satnav and satellite communications. Radio had become used in innumerable ways beyond its better-known areas of telephony , and broadcast television and radio entertainment.
Radio waves also led researchers to adjacent frequencies such as microwaves , used worldwide for heating and cooking food. Radioactivity and antimatter Cancer treatment , Radiometric dating , nuclear reactors and weapons , mineral exploration , PET scans , and medical research via isotopic labeling. Medical imaging , including computed tomography. Crystallography and quantum mechanics Semiconductor devices , hence modern computing and telecommunications including the integration with wireless devices: the mobile phone , [l] LED lamps and lasers.
Two-dimensional motion : Physics. Forces and Newton's laws of motion : Physics. Centripetal force and gravitation : Physics. Work and energy : Physics. Impacts and linear momentum : Physics. Torque and angular momentum : Physics. Oscillations and mechanical waves : Physics. Fluids : Physics. Thermodynamics : Physics. Electric charge, field, and potential : Physics. Circuits : Physics. Magnetic forces, magnetic fields, and Faraday's law : Physics. Electromagnetic waves and interference : Physics.
Geometric optics : Physics. Special relativity : Physics. Quantum Physics : Physics. Discoveries and projects : Physics. Review for AP Physics 1 exam : Physics. Cosmology and astronomy : Physics. Chemistry Did you know that everything is made out of chemicals? Chemistry is the study of matter: its composition, properties, and reactivity.
This material roughly covers a first-year high school or college course, and a good understanding of algebra is helpful. Atoms, compounds, and ions : Chemistry. Chemical reactions and stoichiometry : Chemistry. Electronic structure of atoms : Chemistry. Periodic table : Chemistry. Chemical bonds : Chemistry. Gases and kinetic molecular theory : Chemistry. States of matter and intermolecular forces : Chemistry.
Chemical equilibrium : Chemistry. Acids and bases : Chemistry. Buffers, titrations, and solubility equilibria : Chemistry. Thermodynamics : Chemistry. Redox reactions and electrochemistry : Chemistry. Kinetics : Chemistry.
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Nuclear chemistry : Chemistry. Studying for the AP Chemistry exam? Meet the chemistry professional : Chemistry. Organic chemistry : Chemistry. Alkanes, cycloalkanes, and functional groups : Chemistry. Organic chemistry Sal and Jay cover topics covered in college organic chemistry course. Basic understanding of basic high school or college chemistry assumed although there is some review. Structure and bonding : Organic chemistry. Resonance and acid-base chemistry : Organic chemistry. Alkanes, cycloalkanes, and functional groups : Organic chemistry.
Stereochemistry : Organic chemistry.
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Substitution and elimination reactions : Organic chemistry. Alkenes and alkynes : Organic chemistry. Alcohols, ethers, epoxides, sulfides : Organic chemistry. Conjugated systems and pericyclic reactions : Organic chemistry. Aromatic compounds : Organic chemistry. Aldehydes and ketones : Organic chemistry. Carboxylic acids and derivatives : Organic chemistry. Alpha carbon chemistry : Organic chemistry. Amines : Organic chemistry. Spectroscopy : Organic chemistry. Biology Life is beautiful!