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Sᴄɪᴇηᴄᴇ Aηᴅ Cᴏᴍᴘᴜᴛᴇʀ Nᴏᴛᴇs™ 🎲

Sᴄɪᴇηᴄᴇ Aηᴅ Cᴏᴍᴘᴜᴛᴇʀ Nᴏᴛᴇs™ 🎲

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What is unit of surface tension
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475. A fast wind can turn the blades of a windmill because it possesses__. – Potential Energy 476. Which of the following material is used for electric wire heater? – Ni chrome 477. Conversion of chemical energy into electrical energy occurs in which thing? –Battery 478. The direction of a magnetic field within a magnet is___? – From South to north 479. What remains constant while throwing a ball upward? – Acceleration 480. What type of lens is a magnifying glass? – Convex lens 481. Why does a liquid drop tend to assume a spherical shape? – To minimize surface tension 482. What happens when soda water bottle falls freely? – No bubbles form 483. Pure water freezes at what temperature? – 32 F 484. Why are Metals good conductor of heat than insulator? – they contain free electrons 485. When some detergent is added to water, the surface tension___? – Decreases 486. The value of which quantity remains same in all system of units? – Specific Gravity 487. Distance of stars are measured in___? – Light Years 488. Nature of sound wave is ____? – Longitudinal 489. Which is used to initiate fissions ? – Neutrons 490. The total internal reflection can occur when light pass from___. – Denser to Rarer medium 491. Who discovered Diode Bulb ? –Sir J. S. Fleming 492. Radio waves of constant amplitude can be generated with___? – Oscillator 493. What is the SI unit of luminous intensity? – Candela 494. What is the name of short duration wave? – Pulse 495. The absorption of ink by blotting paper involves___? – Capillary Action

518. What apparatus is used to locate a submerged object? –SONAR 90. 519. The image formed by convex lens in a simple microscope is__. –Virtual & Erect 91. 520. What is the unit of magnetic flux? – Maxwell 92. 521. Coolis tube is used to produce___? – X-Rays 93. 522. Sudden fall in barometer is indication of___? -Storm 94. 523. Force of attraction between the molecules of different substances is called___? –Adhesive Force 95. 524. What is the working principle of Washing machine? – Centrifugation 97. 525. Insects can move on the surface of water without sinking due to___. – Surface tension of water 98. 526. The temperature of the sun is measured with ___. – Pyrometer 99. 527. Acceleration acts always in the direction__? –of the net force 100. 528. Which instrument is used to measure altitudes in aircrafts ? -Altimeter 529. Beats occur because of __? – Interference 530. Distance of stars are measured in___? - Light Years 531. Nature of sound wave is ____? - Longitudinal 532. Which is used to initiate fissions ? - Neutrons 533. The total internal reflection can occur when light pass from___. - Denser to Rarer medium 534. Who discovered Diode Bulb ? Sir J. S. Fleming 535. Radio waves of constant amplitude can be generated with___? Oscillator 536. What is the SI unit of luminous intensity? Candela 537. What is the name of short duration wave? Pulse 538. What is Impulse equal to – change in momentum 539. What is the resistance of an ideal voltmeter – infinite

496. Two drops of a liquid are merged to from a single drop. In this process___? – Energy is released 497. Which is more elastic ( Steel or Rubber)? – Steel 498. An atom bomb is based on the principle of___? – Nuclear Fission 499. Which instrument is used to measure the scattering of light by particles suspended in a liquid ? –Nephetometer 500. The speed of light with the rise in the temperature of the medium ___? – Remains unaltered 501. Most commercial nuclear power plants worldwide are cooled by __? – Water 502. Electric Motor converts____? – Electric energy to mechanical energy 503. Nuclear sizes are expressed in a unit named____? – Fermi Weightlessness experienced in a spaceship is due to___? – Absence of Gravity 504. blue colour of the clear sky is due to ____? – Dispersion of Light 505. What does airbag, used for safety of car driver, contain? – Sodium Azide 506. Radian is used to measure___? – Angle 507. Who had showed that the electric and magnetic waves are equal in vacuum? –James Clerk Maxwell 508. When a red glass is heated in dark room it will seem___. – Green 509. The friction force exerted by fluids is called ___. – Drag 510. Which is used in designing ships and submarines? –Archimedes Principle 511. Which instrument is used to measure change in volume of substances ? – Dilatometer 512. On which principle , transformer works? – Mutual Induction 513. Potential energy of your body is minimum when you _______. – Lie down on ground 514. The velocity of sound in air___? – 332m/sec 515. In summer, the mirages are seen due to the phenomenon of __? – Total Internal Reflection 87. 516. Who gave the first experimental value of G? – Cavendish 88. 517. Astigmatism can be corrected by__? – Cylindrical lenses 89.

Top 1000+ Most Important Physics One Liners SSC, RAILWAYS, UPSC, BANK, DEFENCE, STATE EXAMS, NDA, CDS, AFCAT, NAVY, AIRFOCE PART-1

Top 1000+ Most Important Physics One Liners SSC, RAILWAYS, UPSC, BANK, DEFENCE, STATE EXAMS, NDA, CDS, AFCAT, NAVY, AIRFOCE PART-1 496. Two drops of a liquid are merged to from a single drop. In this process___? – Energy is released 497. Which is more elastic ( Steel or Rubber)? – Steel 498. An atom bomb is based on the principle of___? – Nuclear Fission 499. Which instrument is used to measure the scattering of light by particles suspended in a liquid ? –Nephetometer 500. The speed of light with the rise in the temperature of the medium ___? – Remains unaltered 501. Most commercial nuclear power plants worldwide are cooled by __? – Water 502. Electric Motor converts____? – Electric energy to mechanical energy 503. Nuclear sizes are expressed in a unit named____? – Fermi Weightlessness experienced in a spaceship is due to___? – Absence of Gravity 504. blue colour of the clear sky is due to ____? – Dispersion of Light 505. What does airbag, used for safety of car driver, contain? – Sodium Azide 506. Radian is used to measure___? – Angle 507. Who had showed that the electric and magnetic waves are equal in vacuum? –James Clerk Maxwell 508. When a red glass is heated in dark room it will seem___. – Green 509. The friction force exerted by fluids is called ___. – Drag 510. Which is used in designing ships and submarines? –Archimedes Principle 511. Which instrument is used to measure change in volume of substances ? – Dilatometer 512. On which principle , transformer works? – Mutual Induction 513. Potential energy of your body is minimum when you _______. – Lie down on ground 514. The velocity of sound in air___? – 332m/sec 515. In summer, the mirages are seen due to the phenomenon of __? – Total Internal Reflection 87. 516. Who gave the first experimental value of G? – Cavendish 88. 517. Astigmatism can be corrected by__? – Cylindrical lenses 89.

🔴The Non-Metal elements are:🔴 🔷Hydrogen. 🔶Carbon. 🔷Nitrogen. 🔶Oxygen. 🔷Phosphorus. 🔶Sulfur. 🔷Selenium.

🔴Examples of metals are aluminium, copper, iron, tin, gold, lead, silver, titanium, uranium, and zinc. Well-known alloys include bronze and steel.

🔷What are the 9 metalloids? 💠The metalloids; boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te), polonium (Po) and astatine (At) are the elements found along the step like line between metals and non-metals of the periodic table

🔷Metalloid🔷 💠Chemical element. 💠Boron. 💠Semiconductor. 💠Arsenic. 💠Silicon. 💠Selenium. 💠Antimony. 💠Germanium.

⛲️Saliva: Tylene, Maltase ⛲️Gastric Juice: Pepsin, Renin ⛲️Pancreatic Juice: Trypsin, Amylase, Lipase ⛲️Intestinal Juice: Erepsin, Maltase, Lactase, Sucrase, Lipase

️ Gk One Liners Important Questions Series ️How many bones are there in a shark fish?- 0 ️makes amphibia - animals that can live on both water and land The only snake that builds a nest is - King Cobra Which animal was the first cloned animal 'Dolly'?- Sheep ️Some desert lizards expel their feces in dry form. How does this help? - Adaptation of organisms according to the environment ️Dinosaurs were - Mesozoic reptiles Due to whose presence the chameleon changes color – pigmentary pigment The largest living bird on earth is - Ostrich What is a sea creature called Dugong, which is on the verge of extinction? - Mammal The flightless bird found in New Zealand is – Kiwi Archeopteryx is the oldest bird of the Jurassic era Where is the penguin bird found?- Antarctica ️The biggest flightless bird that can run the fastest is that – Ostrich What is the scientific name of Pavo cristachus – Peacock The only bird that flies backwards – Hummingbird ️How many chambers are there in the heart of a whale?- 4 ️The mammal that becomes like a ball at the time of danger signal - Kantak rat Excretory products of mammals are found in excess in urine - Uric acid ️Green glands are related to- excretion ️Keel is not found in which – Duck ️Dinosaurs were - Reptiles that became extinct ️What is the anticoagulant substance in the blood?- Heparin ️Archeopteryx is the connecting link between which classes of animals- reptiles and birds ️Which group of organisms is important in detecting death due to drowning - Diatoms ️Mammoth is the ancestor of the elephant Pheromones are found in – Insects The biggest fish in India is - Whale Shark ️Who is the closest relative of modern humans among primates?- Gorilla ️Panda is also of the same family, to which it belongs - Bear ️How do most of the insects respire - By Vatak Tantra ️Who lays eggs and does not lay children directly - Echidna ️Which snake's food is mainly other snakes?- Nagraj ️Leaving whom in ponds and wells helps in controlling mosquitoes - Gambusia ️Bees have drones- Fertile male ️The vessel produces milk- Birds ️Which part turns into an elephant's gazelle? - Second rodent ️Darwin Fitching is used for which group?- For birds ️The most endangered on the verge of extinction is Asia's top predator - Dhol ️Which of the following is intended for ex situ conservation of different species- Germplasm Bank

🔰🔰Important Laws and Theories:-🔰🔰 🔷🔷1. Boyles’s Law: it states that at constant temperature, volume of a given mass of gas is inversely proportionaltothe pressure ofthe gas. 🔶🔶2. Charles’s Law: it states that at constant temperature, volume of a given mass of gas is directly proportional to the temperature measured in Kelvin. 🔷🔷3. Avogadro’s Law: it states that equal volumesof all gases under similar pressure and temperature conditions, contain equal number of molecules. 🔶🔶4. Archimede’s Principle: it states that the body immersed in a fluid is buoyed up by a force equal to the weight of the displaced fluid. 🔷🔷5. Bernoulli’s Principle: it states that for an inviscid flow of a no conducting fluid, an increase in the speed of the fluid occurs simultaneously with a decrease in pressure or a decrease in the fluid’s potential energy. #Short #Notes ✍️✍️CREDIT:-Krushna⭐️⭐️

🏝🏝🔺MOST IMPORTANT ONE LINER QUESTIONS🔺🏝🏝 ══════════════════♢.✰.♢════════════════════ 🔷• A crocodile baby is called a hatchling. 🔶• A codfish baby is called codling. 🔷• A goose baby is called gosling. 🔶• A fish baby is called fingerling. 🔷Equs Assinus is the scientific name of Donkey. Donkey is the domesticated animal which is used for various working purpose. 🔶Deer –Cervidae 🔷Cow- Bos taurus 🔶Kangaroo- Macropus rufus #Short #Notes ✍️✍️CREDIT:-Krushna⭐️⭐️

CEN RRC 01-2019 CBT PHASE-I EXAM SCHEDULE.pdf

Where are villi present in the human alimentary canal? Ans 1. Pancreas 2. Oesophagus 3. Stomach 4. Small intestine
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Which of the following organisms is responsible for sleeping sickness? Ans 1. Algae 2. Protozoa 3. Bacteria 4. Viruses
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✍️ List of PH Values of Different Substances 🧪 Substance --------- pH Values ● Pure water 👉🏿 7 ● Human blood 👉🏿 7.35 – 7.45 ● Sea water 👉🏿 7.5 – 8.4 ● Ammonia 👉🏿 10.6 to 11.6 ● Milk 👉🏿 6.5 – 6.7 ● Normal rain 👉🏿 5.6 to 6 ● Acid rain 👉🏿 2 to 5.6 ● Human urine 👉🏿 6 ● Black coffee 👉🏿 5 ●Beers 👉🏿 4.5 ● Wines 👉🏿2.8 to 3.8 ● Vinegar 👉🏿2.9 ● Lemon juice 👉🏿2.4‌‌

🔰♻️💠Facts about---- Atmosphere💠♻️🔰 🔷*the envelope of air that surround the earth----- Atmosphere. 🔶*About 99%of the total mass of atmosphere at the height of------32 km. 🔷* the science of atmosphere and weather is called----Meteorology. 🔶*Air is the mixture of---- gas 🔷*Atmosphere is held By---- gravitational pull of the earth. 🔶*78 of the air is made up of----- nitrogen. 🔷* nitrogen regulate----combustion and avoid quick burning. 🔶* nitrogen generate proteins in the---- plants. 🔷* nitrogen is extended to the height of-----128 km 🔶* the percentage of oxygen in the atmosphere is -----21% 🔷* oxygen is essential for----- breathing. 🔶* the main concentration of oxygen to the height of----16 km. 🔷* the percentages of carbon dioxide in the atmosphere----0. 03% 🔶* carbon dioxide is found up to the height of----32 km. 🔷* The role of carbon dioxide is----- ability to absorb heat thus keep the atmosphere warm. 🔶*carbon dioxide is a---Heaviest gas. 🔷* Hydrogen is the---light gas. 🔶* Hydrogen account in the atmosphere---0.01% 🔷*ozone gas---- save us from ultraviolet radiation from the sun. 🔶* ozone is mainly concentrated from the height of the earth Surface- 20 to 25 km. 🔷* water vapour is the source of---- clouds and precipitation. 🔶* the average amount of water vapour in the atmosphere by volume is----- 2% 🔷* Dust particles in the atmosphere contribute to the----- red and orange color of sunrise and sunset. 🔶* sky look blue due to the presence of----- dust particles. 🔷* smog is cause due to the presence of--- dust particles. 🔶*the lowest layer of atmosphere---Troposphere. 🔷* the average height of troposphere is--- 16 km 🔶* All weather change occur in----Troposphere. 🔷*stratosphere is extended to the height of-----50 km. 🔶* the layer ideal for jet flying planes Is---- stratosphere. 🔷* the ozone layer is found in ----- stratosphere. 🔶* the coldest layer is--- mesosphere. 🔷* the hottest layer is- Thermosphere. 🔶* which layer play role in communication----- ionosphere. 🔷* the upper most layer of atmosphere is Called--- Exosphere. #IMPORTANT_FOR_COMING_EXAMS🤞🤞 ✍️✍️CREDIT:-Krushna⭐️⭐️