For SSC, Railway & All Competitive Exams

Important Biology Notes on Human Blood

Important Biology Notes on Human Blood   Human Blood Blood is a fluid connective tissue. The quantity of blood in the human’s body is 7% of the total weight. This is a dissolution of base whose pH value is 7.4. There is an average of 5-6 litres of blood in human body. Female contains half litre of blood less in comparison to male. Blood consists of two parts:- (A) Plasma (B) Blood Corpuscles   Read More


Physics

Heat and Thermodynamics   Heat Heat is a form of energy, which measures the sensation or perception of warmness or coldness of a body or environment Its unit are calorie, kilocalorie or joule. 1 calorie = 4.18 joule.   Temperature Temperature is the measurement of hotness or coldness of a body. When two bodies are placed in contact, het always flows from a body at higher temperature to the body at Read More


List of Famous Books and their Authors for competitive Exams 2016

List of Famous Books and their Authors for competitive Exams 2016 Today we are providing the list of  Books & their authors. You can easily get 2-3 marks by the help of below list in SSC , Railway & Other Competitive Exams 2016.   Two Year Eight Months and Twenty –Eight Night  –Salman Rushdi    The Red Sari –Javier Moro   Neither a Hawk nor a dove –Khursh Read More


DIGEST CAPSULE: PHYSICS

DIGEST CAPSULE: PHYSICS    WORK Work is said to be done, if force acting on a body is able to actually move it through some distance in the direction of the force. Its SI unit is a joule.   ENERGY Energy is a scalar quantity and its unit is Joule. The sum of all kinds of energies in an isolated system remains constant at all times. This is the law of conservation of energy.   POWER It Read More


Important General Knowledge Questions And Answers For All Competitive Exams

Important General Knowledge Questions And Answers For All Competitive Exams भारत में पहली कोयले की खान - रानीगंज (1820) भारत की पहली ट्रेन - मुम्बई से ठाणे (1853) भारत का पहला राकेट - रोहणी (1967) भारत का पहला उपग्रह - आर्यभट् (1975) Read More


FARADAY S LAW OF ELECTROLYSIS

FARADAY S LAW OF ELECTROLYSIS   During electrolysis, amount of the mass deposited on the electrode is directly proportional to the amount of electricity passes through it. M is directly proportional to  Q           M = ZIT   where, M = amount of mass deposited Q = charge ;   I = current ;  T = time ;  Z = electrochemical equivalent of element (ECE) During electrolys Read More


ELECTRICITY

ELECTRICITY Electricity is the phenomenon associated with stationary or moving elec­trons, ions or other charged particles. The electricity produced by friction is called frictional electricity. If the charges in a body do not move, then the frictional electricity is known as static electricity. The electricity that travels along wires is called current electricity. An electric current is defined as an electric charge i Read More


ATOMIC AND NUCLEAR PHYSICS

ATOMIC AND NUCLEAR PHYSICS Rutherford first invented the nucleus. X rays are produced when high speed electrons are falling on tungsten. Radioactivity was discovered by ‘Henry Becquerel.’ particles are doubly ionized helium atoms or helium nuclei. rays are electromagnetic radiation of very high energy thus its fre­quency is very low. rays are emitted with both Alpha & Beta Particles. An element b Read More


BASIC ELECTRONICS

BASIC ELECTRONICS The electrons, revolving in the outermost orbit of metals, which are weakly held by nucleus are called free electrons. The electrons emitted from the surface of metal, when heat energy is supplied to metal are called Thermions. Emission of electron from any metallic surface caused by heating is known as Thermoionic Emission. The minimum heat energy required to make a metal emit an electron (thermion) from its Read More


(कुछ महत्वपूर्ण मानव शरीर से संबंधित तथ्य)

Some Important Facts related to Human Body (कुछ महत्वपूर्ण मानव शरीर से संबंधित तथ्य) • Largest and strongest Bone in the body: Femur (thigh bone) • शरीर में सबसे बड़ा और सबसे मजबूत हड्डी: फीमर ( जांघ की हड्डी )   • Smallest Bone in the body: Stapes i Read More


Geography of India (General Awareness)

Geography of India (General Awareness - Indian Geography Notes for All Competitive Exams)   Green Revolution is related with the use of HYVS.   HYVS - High Yielding Variety Seeds.   Green Revolution takes place during 1960.   White revolution is related with a sharp increase in milk production.   White revolution takes place during the year of 1964-65.   'Operati Read More


MAGNETISM

MAGNETISM Magnetism is the branch of physics concerned with magnetic phenom­enon. Magnetism is caused by the way atoms are arranged in materials. Materials can be divided broadly into three categories. Diamagnetic Substances (ii) Paramagnetic Substances (lit) Ferromagnetic Substances Diamagnetic substances are those substances which are repelled by a magnet, e.g. copper, lead, gold, zinc, tin, water, air, antimony. Read More


HEAT AND THERMODYNAMICS

HEAT AND THERMODYNAMICS Heat is a form of energy that flows from one body to another due to temperature difference between It is the combined energy of all molecules moving inside a body. Temperature is only a measure of how fast these molecules are mov­ing. The faster the molecules in a body vibrate, the hotter it is. The flow of heat from one body to another continues until both the sides are at the same temperature. The two Read More


Acceleration

ACCELERATION Time rate of change in velocity is known as acceleration. It is a vector quantity. Negative acceleration is known as retardation. It indicates that the ve­locity of the object is decreasing with respect to time.   VARIABLE ACCELERATION If the velocity of the body changes in different amounts during the same time intervals, then the acceleration of the body is known as variable acceleration. Acc Read More


For SSC & Railway & All Competitive Exams

Basic Chemistry - General Chemistry - Applied Chemistry Notes for all Competitive Exams   To make the glass hard. Some KCl is added to it.   Lead of a pencil is made of graphite.  The gas used in refrigerators is ammonia.  The acid used in Lead-storage batteries is sulphuric acid.   α-rays are basically Helium nuclei.  Fly ash from thermal plants can be profitably used t Read More


MOTION (Mechanics)

MOTION (Mechanics) Motion is change of position of a body with time. Two types of Motion are, Linear Motion and Rotatory Motion. Scalar quantities : Those physical quantities which are completely de­scribed by a magnitude (size) alone, are known as scalar quantities, e.g. length or distance, mass, time, area, volume, work, power, en­ergy, temperature, speed, pressure, charge and potential. Vector quantities : Those phys Read More


For SSC & Railway & All Competitive Exams

List of all Important Awards and their Fields Important For All Competitive Exams. List of all Important Awards and their Fields सभी महत्वपूर्ण पुरस्कार और अपने क्षेत्रों की सूची   1. Nobel Prize (नोबेल पुरस्कार) • Most coveted international award of the world. • दुनिया की सब Read More


SOUND AND WAVE MOTION

SOUND AND WAVE MOTION   Sound Waves : Sound waves are longitudinal mechanical waves. Eased on their frequency range sound waves are divided into following categories. The sound waves which lie in the frequency range 20 Hz to 20000 Hz are called audible waves. The sound waves having frequencies less than 20 Hz are called infrasonic The sound waves having frequencies greater than 20000 Hz are called ultrasoni Read More


Various Diseases and Associated Part of Human Body

Various Diseases and Associated Part of Human Body asked in SSC & different Exams (विभिन्न रोगों और मानव शरीर के एसोसिएटेड भाग)   Parts of the Body Affected by Diseases (रोगों से प्रभावित शरीर के कुछ हिस्सों) • Arthritis : Joints (गठिया: जोड़ों) • Asthma : Read More


Basic Chemistry ,General Chemistry , Applied Chemistry Notes

Basic Chemistry - General Chemistry - Applied Chemistry Notes for all Competitive Exams   The purest form of carbon is Diamond. A Mixture of water and alcohol can be separated by distillation.  Radiocarbon Dating, widely employed to determine the age of objects of animal of vegetable origin involves      the radioisotope carbon 14.  The use of ozone kills Micro-organisms in water.  Ele Read More


विश्व की प्रमुख नदियाँ : सामान्य ज्ञान प्रश्नोत्तरी

विश्व की प्रमुख नदियाँ : सामान्य ज्ञान प्रश्नोत्तरी ● जल के आयतन के आधार पर विश्व की सबसे बड़ी नदी कौन-सी है— अमेजन नदी ● यूरोप महाद्वीप की सबसे बड़ी नदी कौन-सी है— वो Read More


Scientific Instruments and their Usage

Important Scientific Instruments and their Usage – For SSC & Railway & All Competitive Exams. • Rain Gauge: An apparatus for recording rainfall at a particular place. • रेन गेज: एक विशेष स्थान पर वर्षा की रिकॉर्डिंग के लिए एक उपकरण ।   • Radiometer: It measures the emission of radiant energy. Read More


Ancient History of India: Know in Brief For SSC And All Competitive Exams.

Ancient History of India: Know in Brief For SSC And All Competitive Exams.   Eminent Personalities of Ancient India (प्राचीन भारत के प्रख्यात हस्तियों) • Alexander : he was the ruler of Macedonia in Greece. He attacked India in 326 BC and captured upto river Bias. • अलेक्जेंडर: वह ग्रीस में मैसेडोनि Read More


In Previous Years Exam Questions Asked from Ancient History

In Previous Years Exam Questions Asked from Ancient History   1. The source of Swastika symbol  – Indus Valley (स्वस्तिकचिह्नके 1. स्रोत – सिंधुघाटी)   2. Who is considered as the father of Indian archaeoloy – Alexander Cunningham (भारतीय archaeoloy केपिताकेरूपमेंमानाजाताह Read More





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