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This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
एक अवतल दर्पण की वक्रता त्रिज्या 15 सेमी है। इसकी फोकस दूरी क्या होगी।अ)-15सेमी। आ)-7.5सेमी।इ)30सेमी। ई)7.5सेमी। |
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Answer» weelldxib CIE shsnmd s zjsysvbznsmsnznsnnsnmsmsmammsjsuhrurjsmw |
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| 2. |
Q. 3. State True/ False:1. Generally, non-metals react with acids, F2. Copper displaces zinc from zinc sulphate solution. F3. CNG is more polluting fuel than petrol.4. If the amplitude of vibration is large, sound is feeble.5. The lower the frequency of vibration, the higher is the pitch. |
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Answer» 4. true 5. false |
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| 3. |
State the period of the periodic table to which these elements belong. Give reason for youranswer. |
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| 4. |
LPG CNG PHOSPHORUS KEROSENE ODD ONE OUT |
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Answer» Explanation: because Phosphorus. is ACID |
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| 5. |
Answer me (Q1) (Q2) (Q3) |
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| 6. |
Draw a series of three bulbs a battery of three cells a switch and a fuse connected using wiresplz give the picture of the DRAWING dont spam |
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| 7. |
Up to about 3000 millon year ago, there was no oxygen in the Earth's atmosphere. Today, about one fifth of the atmosphere is oxygen gas. |
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Answer» Explanation: many years ago EARTH was full of lava and MAGMA with huge volcano. when rain came these magma began to solidify and become rocks and water begin to GET collected. when ice age came these water got frozen and after many years due to harsh temperature and environment these water begin to splitt. H2O ----> H2 + O2 and oxygen began to form. the major cause of oxygen PRODUCTION where trees that began to grow and because of PHOTOSYNTHESIS oxygen got liberated and due to these factor , oxygen is in larger amounts or 1/5th of earth's atmosphere. |
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| 8. |
2. Acid + Base _______________ + _____________ |
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Answer» Acid + Base ------> Salt + Water It is called Neutralization REACTION |
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| 9. |
Types of solution class 9th explain |
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Answer» Answer: 1. Different types of Solutions On the bases of water as Solvent: Solutions can be classified into 2 types on the basis of whether the SOLUTION is water or not, • Aqueous Solution:- The solution in which any state of homogeneous compound COMPLETELY dissolves in water, in which water acts as a solvent. Examples of this kind of solution are sugar/ salt in water, CARBON dioxide in water. • Non- Aqueous Solution:- These solutions are basically opposite of the Aqueous solution, as the solvent available in it is not water, could be anything else like, petrol, benzene, ether, etc. Examples of this kind of solution include phenolphthalein in benzene, sulfur in carbon disulfide, etc. 2. Different types of Solutions On the bases of an amount of solute added: Solutions can be classified into 3 types on the bases of an amount of solute present in the solution, • SATURATED Solutions: A solution is said to be saturated only if it reaches its limit to dissolve any more solute in the solvent at a definite temperature. • Unsaturated Solutions: If the solution can still dissolve more solute in solvent then it is said to be unsaturated solutions. • Supersaturated Solutions: The solution in which solute is present in an excess amount, and are DISSOLVED in the solvent forcefully by raising the temperature, is called as the Supersaturated Solutions. These excess solute particles are later found in the form of crystals with the help of the crystallization process. |
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| 10. |
Explain the importance of water bath in Redwood viscometer |
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Answer» The redwood viscometer consist of vertical cylindrical oil cup with an ORIFICE in the centre of its base . ... The cylindrical cup is SURROUNDED by the water bath . The water bath MAINTAIN the temperature of the oil to be tested at CONSTANT temperature . mark me as brainliest |
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| 11. |
U.(2 x 2 = 4 marks)A car starts from point P, travels 40 km due south and reaches Q, then takes a rightturn and travels another 30 km in a straight line to reach point R. The total time taken bythe car for this journey is 2 h 46 min and 40 s. Calculate the following:a) Average speed of the car for this journey in m/s.b) Average velocity of the car for this journey in m/s. |
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| 12. |
What is structural form of c3h6 (propene) i need help : |
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Answer» Propene, also known as PROPYLENE or methyl ETHYLENE, is an unsaturated organic compound with the chemical formula C 3 H 6 {\displaystyle {\ce {C3H6} . It has ONE double bond, and is the second simplest member of the alkene class of hydrocarbons. Explanation: HOPE this answer helps you (mark me as brainleast) |
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| 13. |
O what is meanby Valency class 10 |
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Answer» VALENCY: The combining capacity of an atom is called its valency. Actually it can be defined as the number of electrons that an atom MAY lose (or) gain during a chemical reaction (or) the number of electrons shared. |
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| 14. |
Define pinhole camera |
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Answer» Answer: A pinhole camera is a SIMPLE camera without a lens but with a tiny aperture (the so-called pinhole)—effectively a LIGHT-proof box with a small hole in ONE side. Light from a SCENE passes through the aperture and projects an inverted image on the opposite side of the box, which is known as the camera OBSCURA effect. |
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| 15. |
Is ethics in science and technology really an important and indispensable factors in our everyday life? |
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Answer» Answer: today's world, the role of science and TECHNOLOGY is indispensable. We need Science and Technology in EVERY sphere of our life like to treat DISEASES such as cancer or EVEN to book a cab or train/flight TICKET. In fact, without technology (integrated with science), we cannot imagine our life per se. hope this will help you☺️ |
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| 16. |
Explain the importance of water bath in redwood viscometer |
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Answer» Answer: The redwood viscometer consist of vertical CYLINDRICAL oil cup with an ORIFICE in the centre of its base . ... The cylindrical cup is surrounded by the water BATH . The water bath MAINTAIN the temperature of the oil to be TESTED at constant temperature . |
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| 17. |
.Cellisdiscoveredby______(a)RobertBrown(b)RobertHooke(c)JohnMendal(d)AlexanderFleming |
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Answer» Explanation: B OPTION is CORRECT ROBERT hooke:-)♡♥~♥~♡ |
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| 19. |
Tooth Brush bristles are made form |
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| 20. |
why animal like organisms did not appear on earth until after the first organisms that could photosynthesise had appeared |
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| 21. |
A vertical section of soil is called |
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Answer» A soil profile is a vertical section of soil like the DIAGRAM above. It allows you to examine the structure of soil. A soil profile is divided into layers called HORIZONS. ... The A horizon is where there is most soil life and is SOMETIMES called topsoil. |
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| 23. |
StructureMritersCerebruma rynapeMedullaoblongtaurethra |
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Answer» cerebrum ur welcome lol |
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| 24. |
an object takes 5seconds to reach the ground from a height of 5meter on aPlanet what is the value of g ,on the planet |
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Answer» TIME =5seconds height =5meter g=? h=ut+1/2gt*2 5=0×5+1/2g×(5)2 5=1/2g×25 5=25g/2 25g=10 g=10/25 g=2/5 |
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| 25. |
Which is almost pure form of carbon ? a) coke b) coal c)coal tar d) charcoal |
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| 26. |
Name four gaseous pollutants |
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Answer» Answer: The main gaseous pollutants that are regulated or are PRECURSORS of regulated pollutants are briefly presented in the following sections. 1 Sulfur Dioxide. ... 2 Carbon Monoxide. ... 3 Ozone and Gaseous Photochemical Oxidants. ... 4 NITROGEN Oxides. ... 5 VOLATILE and Semi-volatile Organic Compounds. ... 6 AMMONIA. |
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| 27. |
Match the following . 1. minute _clay and loam soil . 2. bawir_ used in vermin processing. 3. wheat, gram and paddy_ day time 4. earthworm _ time to reach your school 5. sea breeze_ traditional way of collecting waterplease answer me friends |
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Answer» VERMI-processing toilets is a design of a toilet in which humans excreta is TREATED by earthworms and redworms. In this process, human excreta is completely CONVERTED to cake like structures called vermi cakes by earthworms. Vermi cakes are used mostly in the SOIL as manure and fertilizers. Option "A" is correct. |
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| 28. |
what does the increased level of nutrients in the water affectssurvival of aquatic organism ? in short answer |
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Answer» afkfkfkfckfkcicificcifff |
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| 29. |
Define adolescence write any three changes occur during in adolescence |
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| 30. |
Complete the circuit diagram given below and draw it in your answer sheet. Alsoexplain where the free ends of the two wires should be joined, to make the bulbglow |
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Answer» hdvjsvsjsvsjgsnshsvs |
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| 31. |
Question to please answer |
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Answer» Answer: Given, Amount of water = 200 mL Percolation TIME = 40min RATE of percolation = Amount of water in mL / Percolation time in min =200 / 40 =5 mL/min. Hence, the rate of percolation of water through the given soil SAMPLE is 5 mL/min. Explanation: |
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| 32. |
DiesWe tangentbordCaring for the CAMARAWhet beste testnikColoronlyCon la fourth o me sa duket,any diferite Champagos by 12Cela faill yn whetg While the names the has beenchileGuyabatlari |
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Answer» Answer: dies We tangentbord Caring for the CAMARA W het beste testnik Color only Con la fourth o me SA duket, any diferite Champagos by 12 Cela FAILL yn whet g While the NAMES the has been chile Guyabatlari Explanation: what question is this |
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| 33. |
To two cells5. Solve the following problem:(2 x 2 = 4 marks)A car starts from point P, travels 40 km due south and reaches Q, then takes a nightturn and travels another 30 km in a straight line to reach point R. The total time taken bythe car for this journey is 2 h 46 min and 40 s. Calculate the following:a) Average speed of the car for this journey in m/s.b) Average velocity of the car for this journey in m/s. |
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Answer» Find an answer to your question A car STARTS from point P, ... Q, then takes a rightturn and travels ANOTHER 30 KM in a ... the car for this journey is 2 h 46 min and 40 s . Explanation: here is your answer |
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| 34. |
Suggest two precautions to be taken by an individual by an individual against Spanish flu.? |
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Answer» Answer: vaccine Explanation: please thanks all my ANSWERS and MARK the BRAINLIEST |
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| 35. |
4.Which of the following ignition temperatures are indicative of a good fuel?a. Very lowc. Slightly above room temperatureb. Very highd. Slightly below room temperature |
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Answer» Explanation: B Very high TEMPERATURE |
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| 36. |
What is total solar eclipse |
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Answer» Your answer is her Explanation: A total solar eclipse occurred at the MOON's descending NODE of the orbit on July 22, 2009 with a magnitude of 1.0799. It was the longest total solar eclipse during the 21st century, the longest total solar eclipse during the 3rd millennium will be on 16 |
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| 37. |
Q45. Identify the parts labelled as A, B, C, D, E in the following picture.निनलिखित चित्र में A,B,C,D.E के रूप में लेबल किए गए भागों को पहचानें। |
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Answer» ssdhxdsgsshshshshdjdhdyfgdkdkdodydy |
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| 38. |
D) SwingsQ2. Fill in the blanks:(4)Apython1) Acan swallow animals that are twice the size of its mouth.2) The process of cracking of an egg shell and the baby birds coming out is called3) The Silkworms eatleaves and grow.4) We should cross the road atQ3. True or False:(3)1) Fishes breathe through lungs. |
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Answer» Answer: Explanation: |
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| 39. |
Identify the compound from the following .(a) Coopper sulphate b(Soil (c) sugar solution (d)Air |
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Answer» Answer: a COPPER sulphate Explanation: |
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| 40. |
TO)Q9. Budding occurs in(a) Yeast(b) Hydra and Yeast(c) Hydra(d) none of the above |
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Answer»
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| 41. |
What is great conjunction?.....----------Follow___me------------------------------- |
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Answer» Answer: A great conjunction is a conjunction of the planets Jupiter and SATURN, when the two planets APPEAR CLOSEST together in the sky. Great conjunctions occur approximately every 20 years when Jupiter "overtakes" Saturn in its ORBIT. |
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| 42. |
6. The forest conservation actwas enacted by Indianparliament in year |
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Answer» Answer: 1980 an ACT to provide for the CONSERVATION of FORESTS and for matters connected therewith or ancillary or INCIDENTAL THERETO. |
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| 43. |
Des.Why do tanks have outlets? |
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Answer» That EXTRA piece of pipe is air outlet. It is always placed at a HEIGHT higher than the tank in order to avoid the overflow of water. ... This pipe is a air vent for piping. When the water tank gets EMPTY and all the outlet taps are closed then the pipes in system gets air inside them. |
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| 44. |
Please answer itI will mark you as Brainliest |
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Answer» Answer: chemical chemical physical both(as in CASE of CRIPPLING of paper) physical chemical Explanation: the answers may b wrong but ACCORDING to my OPINION these only r the answers dear.. |
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| 45. |
3. Name the class of food which is essentialfor building protoplase in our body? |
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Answer» protein. ans.haikhgggkljhhhhgffff |
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| 46. |
CONCEIdentify the error in the given statements. Circle the incorrect word and write the correcB.the blank.1. Atoms have more than one kind of particles combined together in a fixedratio by mass.2. Noble gases show some properties of metals and some properties of non-metals,3. Molecules consisting of more than three atoms in an element are calledpolynuclear molecules.4. Sugar solution is a heterogenous mixture.5. Sublimation is the process of separating a liquid from its solution byevaporating it and then condensing its vapour.6. Oil and water are miscible liquids. |
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Answer» qwertyuioplkjhgfdsazzxcvbnm |
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| 47. |
Nehabhabhi takes two types of fiber, natural and synthetic. She does not knowwhich one is natural fiber and which is synthetic fiber. Which activity you will suggest to identify the fibers |
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Answer» NATURAL fibres CONTAIN synthetic turf FIELD trip and eh ta HUN neha bhabhu no he cahhida menu kk pta hauu |
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| 48. |
Suggest two precautions to be taken by an individual by an individual against Spanish flu. |
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Answer» Answer: |
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| 49. |
7. Regular and seasonalmovement of birds |
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Answer» Answer: Bird migration is the regular seasonal movement, often north and south along a flyway, between breeding and wintering grounds. ... It occurs mainly in the northern hemisphere, where birds are funneled on to SPECIFIC routes by natural BARRIERS such as the Mediterranean SEA or the CARIBBEAN Sea Explanation: hope it will help you ✌✌ |
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| 50. |
two mirror a and b are kept perpendicular to each other as shown. an inciednt ray hits mirror a at an angle of 30. after reflecting off mirror a , its hits mirror b at an angle x. draw the rays that get reflected off the mirror a and b and find angle x . |
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Answer» Answer: Correct 65 ∘
On plotting the RAY DIAGRAM, we get by geometry the ANGLE of reflection for the ray REFLECTED from MIRROR B = 65 o . |
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