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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 50751. |
What do You understand by "watershed management"? |
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Answer» Watershed management is a term used to describe the process of implementing land use practices and water management practices to protect and improve the quality of the water and other natural resources within a watershed by managing the use of those land and water resources in a comprehensive manner. Rain water harvesting |
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| 50752. |
Write the steps involved in generating electricity in a nuclear reactor |
| Answer» The steps involved in generating electricity in a nuclear reactor are:(i) The controlled fission of uranium-235 in the nuclear reactor produces a lot of heat energy.(ii) Liquid sodium or C02 gas is pumped continuously through the pipes embedded in reactor. Sodium absorbs the heat energy produced in reactor.(iii) The hot sodium is then passed into the coil of heat exchanger containing water. The water absorbs heat from hot sodium and gets converted into steam.(iv) This steam at high pressure is used to rotate the turbine. The shaft of the turbine is connected to the electric generator. When turbine rotates, its shaft also rotates and drives the generator. The generator thus, produces the electricity. | |
| 50753. |
What is nuclear chain reaction? |
| Answer» Nuclear fission rxm is also called nuclear chain rxn | |
| 50754. |
Kisa bio yeed kera |
| Answer» Mene?\u200d♀?\u200d♀?\u200d♀ | |
| 50755. |
Explain the law of dominant |
| Answer» Law of dominance - According to this law, when a cross is made between two homozygous individuals, only one of the two characters of the pair (dominant) appears in the F1 generation. There is the appearance of both the characters in F2 generation. | |
| 50756. |
How H3o positive ion is formed in water solution??? koi ans d d |
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Answer» Listen bhai mere question m chat mt kia kro.got it??? Bolo agae Agae Upar waale q me aao Kaisa jhuth Kya jhooth Tumne mujhse jhoot bola naa Sach me mijhe to yakeen hi nhi ho rha vo tum ho Ashu vo tum ho?? Are sach btao vo tum ho fir me bhai ki id se tumhe request bhejungi Ha hu Sab ne dekh liya use id ko Mtlb kya Bihar ke ghar me Blue shirt tum ho kya To tum kahan ho Hi Tumhe kya lagta h Vo tum the blue shirt me Nhi woh frnd h Tumne dekhi h pic Blue shirt me he kya Hai Ek baat btao tumne kya pic lgqi hai insta pr Kl raat ko nhi ayi hm raat bhar intezar kiya Ha tumne wish nhi kiya Ashu aaj tumhara bday hai Hlo h2o+h positive=h3o positive Ryt one?? Then? Wrong ans By pouring acid init |
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| 50757. |
There is feedback mechanism by which hormones are secreted in precise quantities.Explain. |
| Answer» Feedback mechanism is the mechanism of the body to maintain the levels of hormones in the body in the desired limits. An increase or decrease in the levels of the hormones triggers the feedback mechanism.\xa0The body has two types of feedback mechanisms, positive and negative feedback mechanism.Example:Negative feedback mechanism:\xa0Whenever there is a change in the normal state, the messages are sent to ‘increase’ secretions if there is a fall below normal or to ‘decrease’ secretions if there is a rise above normal to restore the normal body state. Such a mechanism is called a negative feedback mechanism.The increase in the blood sugar level stimulates the secretion of insulin so that the sugar level is maintained. If the blood sugar level falls below normal, then it stimulates the secretion of glucagon. Glucagon stimulates the breakdown of glycogen to glucose, and thus, the normal sugar level is maintained. | |
| 50758. |
Solution of science question paper code is 31/2/3 |
| Answer» | |
| 50759. |
Pls jaldi answer karo |
| Answer» Answer | |
| 50760. |
What is garbage management |
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Answer» The proper disposal of household and industrial waste without affecting and damaging the environment is called garbage management Hiiiiiiiiiiiiiiiiiiiiiiiii sheetal |
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| 50761. |
Explain the function of nephron. |
| Answer» IDK | |
| 50762. |
hello. ?,define all parts of brain? |
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Answer» Thanks adhya but e open no ho ra??? tap here for ur answer ?.... |
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| 50763. |
What do you mean by refractive index. |
| Answer» Refractive index is defined as: The ratio of speed of light in vacuum to its speed in a specific medium.\xa0 | |
| 50764. |
is dinosaur feathers and bird feathers analogous? |
| Answer» Yes they are analogous | |
| 50765. |
Give important questions |
| Answer» Sabki padhna | |
| 50766. |
PRACTICAL BASED QUESTIONS AYEGA KYA JAISA PICHLE SAAL ATA THA PLS BATAO????????????? |
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Answer» Yes May be ....?? Maybe You should only read the activities of science textbook nope No.... Yes No Practical kya hota hai |
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| 50767. |
Why planets do not twinkle??? don\'t answer in typical language. |
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Answer» But i yet not understood it clearly Because they are very close to earth comparatively from stars So the atmospheric refraction can not be seen there. Stars twinkle because they appear as tiny pinpoints as seen from Earth, even through telescopes.Planets don\'t twinkle because they are closer, and thus appear larger in our sky, as tiny disks instead of pinpoints. Because they have their own light and they are quite closer to earth than stars |
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| 50768. |
What is the mean by power of accommodation of the eye ? |
| Answer» The ability of an eye to focus the distant object as well as the nearby object on the retina by changing the focal length of its lens is called the power of accommodation | |
| 50769. |
What is mutations and genetic drift |
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Answer» ??????? What about genetic drift Very drastic variation are called mutations. Organisms with mutations will not be able to survive in cellular apparatus. |
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| 50770. |
Is any base combine with co2 to form salt and water?? |
| Answer» Calcium hydroxide reacts with non-metallic oxides like carbon dioxide to form calcium carbonate salt and water.Ca(OH)2 + CO2 → CaCO3 + H2O | |
| 50771. |
Bye my love |
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Answer» E dramebaj bs kr ab tu vo maan gi kahi na jata ye jhuta hai Kya notanki h sach, m.so much thrilll? Ab mat smjhao vo to gya bhai m khushi,meri bt to suno Meri party ..??? Lagta hai kha liya poison Air party bhi Shi baat h Exam to de kr jaa pagal Bye |
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| 50772. |
Sowndaryaa khusi jaldi aao bhai musibat me h |
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Answer» me khushi hi hu smarkee btao kya hua kya hua |
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| 50773. |
Name the conducting structures present in plants?ans fats??? |
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Answer» Honeeeeeee as always.crazy for food kese ho hey honey? hii Oh honey.as ur wish?? hum to late reply krenge.....jldi ans chaiye to google baba ki help lo??? |
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| 50774. |
Not fine because aj ka birthday life ka bad birthday |
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Answer» Clo ab jaldi se aa jao Ashu vo mAn gyi ab party pakki hmm diku Mikku aagai Cal mt krna Tum tyari karo science ka exam h na Apna wp no dena sis Nhi yah mera gam h sab kuy royenge???????????? Tumhara koi bf h sis Kya puchu Hi |
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| 50775. |
Define human circulatory system. |
| Answer» The circulatory system consists of three independent systems that work together: the heart (cardiovascular), lungs (pulmonary), and arteries, veins, coronary and portal vessels (systemic). The system is responsible for the flow of blood, nutrients, oxygen and other gases, and as well as hormones to and from cells. | |
| 50776. |
Why copper is used in tanks rather than the steel |
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Answer» Copper is used to make hot water tanks and not steel this is because the iron (in steel) is more reactive than then copper also it react with hot steam to produce ferrosoferric oxide. Due to which the body of tank will become weaker and weaker. While copper does not react with hot water. It is less reactive As steel has iron as a constituent due to which when it reacts with water forms Fe3O4 |
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| 50777. |
Difference between static electricity and current electricity |
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Answer» Thank you to both of you The most significant difference between the static and current electricity is that in static electricity the charges are at rest and they are accumulating on the surface of the insulator. Whereas in current electricity the electrons are moving inside the conductor. |
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| 50778. |
Key points of working of motor and generator |
| Answer» An electric motor is a rotating device that converts electrical energy to mechanical energy. Electric motor is used as an important component in electric fans, refrigerators, mixers, washing machines, computers, MP3 players etc. An electric motor consists of a rectangular coil ABCD of insulated copper wire. The coil is placed between the two poles of a magnetic field such that the arm AB and CD are perpendicular to the direction of the magnetic field. The ends of the coil are connected to the two halves P and Q of a split ring. The inner sides of these halves are insulated and attached to an axle. The external conducting edges of P and Q touch two conducting stationary brushes X and Y, respectively. Current in the coil ABCD enters from the source battery through conducting brush X and flows back to the battery through brush Y. Notice that the current in arm AB of the coil flows from A to B. In arm CD it flows from C to D, that is, opposite to the direction of current through arm AB. On applying Fleming’s left hand rule for the direction of force on a current-carrying conductor in a magnetic field. The force acting on arm AB pushes it downwards while the force acting on arm CD pushes it upwards. Thus the coil and the axle O, mounted free to turn about an axis, rotate anti-clockwise. At half rotation, Q makes contact with the brush X and P with brush Y. Therefore the current in the coil gets reversed and flows along the path DCBA. A device that reverses the direction of flow of current through a circuit is called a commutator. In electric motors, the split ring acts as a commutator. The reversal of current also reverses the direction of force acting on the two arms AB and CD. Thus the arm AB of the coil that was earlier pushed down is now pushed up and the arm CD previously pushed up is now pushed down. Therefore the coil and the axle rotate half a turn more in the same direction. The reversing of the current is repeated at each half rotation, giving rise to a continuous rotation of the coil and to the axle.\xa0\xa0Electric Generator: The electric generator is based on the principle of electromagnetic induction and converts mechanical energy into electrical energy.There are two types of generators:\tAC generator producing a current which periodically changes its direction\tDC generator producing a current which always flows in the same direction.An AC generator can be changed into a DC generator by replacing the slip-ring arrangement with the split-ring (commutator) arrangement.In an electric generator, mechanical energy is used to rotate a conductor in a magnetic field to produce electricity. An electric generator consists of a rotating rectangular coil ABCD placed between the two poles of a permanent magnet. The two ends of this coil are connected to the two rings R1 and R2. The inner side of these rings are made insulated. The two conducting stationary brushes B1 and B2 are kept pressed separately on the rings R1 and R2, respectively. The two rings R1 and R2 are internally attached to an axle. The axle may be mechanically rotated from outside to rotate the coil inside the magnetic field.Outer ends of the two brushes are connected to the galvanometer to show the flow of current in the given external circuit. When the axle attached to the two rings is rotated such that the arm AB moves up (and the arm CD moves down) in the magnetic field produced by the permanent magnet. Let us say the coil ABCD is rotated clockwise. By applying Fleming’s right-hand rule, the induced currents are set up in these arms along the directions AB and CD. Thus an induced current flows in the direction ABCD. If there are larger numbers of turns in the coil, the current generated in each turn adds up to give a large current through the coil.This means that the current in the external circuit flows from B2 to B1. After half a rotation, arm CD starts moving up and AB moving down. As a result, the directions of the induced currents in both the arms change, giving rise to the net induced current in the direction DCBA. The current in the external circuit now flows from B1 to B2. Thus after every half rotation the polarity of the current in the respective armschanges. Such a current, which changes direction after equal intervals of time, is called an alternating current (abbreviated as AC). This deviceis called an AC generator. | |
| 50779. |
Explain law of independent assortment |
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Answer» Formation of random combinations of chromosomes in meiosis and of genes on different pairs of homologous. Mendel\'s law of independent assortment states that the alleles of two (or more) different genes get sorted into gametes independently of one another. In other words, the allele a gamete receives for one gene does not influence the allele received for another gene. |
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| 50780. |
Some examples of endothermic reaction |
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Answer» \tWhen ammonium chloride (NH4Cl) is dissolved in water, an endothermic reaction takes place. The salt dissociates into ammonium (NH4+) and chloride (Cl–) ions. The chemical equation can be written as follows: NH4Cl (s) + H2O (l) ⟶ NH4Cl (aq) – Heat\tAmmonium nitrate (NH4NO3), an important component in instant cold packs, dissociates into the ammonium cation (NH4+) and the nitrate anion (NO3–) when dissolved in water. These ions go on to form ammonium hydroxide (NH4OH) and nitric acid (HNO3) respectively (by reacting with the OH– and H+ ions in water). This reaction is endothermic in nature since it cools the surroundings by absorbing heat from it.\tThe formation of nitric oxide from the reaction between nitrogen and oxygen is endothermic since it involves the absorption of approximately 180.5 kilojoules of heat for every mole of N2 and O2. Photosynthesis reaction is an endothermic reaction 1. N2+O2+Heat-> NO 2. CaCO3+Heat-> CaO+CO2 |
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| 50781. |
from which section should we start board exam? |
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Answer» Any section Mai to section A se hi karti hu |
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| 50782. |
What is function of digestion enzyme |
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Answer» Emilification of fat To break down the complex substances into simple substances Break complex substances that is food to simpler form |
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| 50783. |
Esterification ki reaction |
| Answer» CH3CH2OH + CH3COOH ---------------> CH3COOC2H5 + H2O | |
| 50784. |
What will be the name of compound. C5H8 where triple bond is situated in mid of chain |
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Answer» The correct answer is pent-3-yne. No the bond is situated mid of the chain Alkyne group Pentyne |
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| 50785. |
Name a few greenhouse gases |
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Answer» Carbon dioxide,CFC Mathane, |
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| 50786. |
How can we know about which element is metal non-metal or metalloid |
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Answer» Coz I think I know you With the help of vhemical and physical properties ? Duvya aap kha se ho btana |
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| 50787. |
डिफरेंस बिटवीन ट्रांसलोकेशन and ट्रांस्पिरेशन |
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Answer» As follows Transpiration-loosing of excess amount of water in plants Translocation- providing nutrient to other parts of plants Transfering of food to all plant parts by phloem is called translocation The removal of excessive water by leaves of the plant for the maintainance of plant body |
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| 50788. |
What is tydall effect? simple defination. ? |
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Answer» When a ray of light came from a small hole we can see dust particles inside it this phenomena is known as tyndall effect The scattering 9f light by collodial particles is called tyndall effect |
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| 50789. |
And tell me important properties for board exam please fast |
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Answer» ? ? |
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| 50790. |
Difine saxual and asexual |
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Answer» ?? In sexual reproduction two parents are involved among them one is male other is female . While in asexual reproduction only single parent are involved to produce offspring |
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| 50791. |
What is mean by periods |
| Answer» The horizontal rows are cllad periods | |
| 50792. |
Mention names of various phytohormones |
| Answer» Auxin Gibberllins CytokininsAbscisic acidEthylene | |
| 50793. |
How does transpiration helps in ascent of sap |
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Answer» Maine instra pe dekha h tu itni saari actress ko follow krta h teri fav kon h Mera bhi Mera favorite hai Mst h king kohli Bhai tu bhut bda dramebaaz h To king hta de accha nhi lg rha h Dono hu Bhardwaj kyu tu to tewari h Accha aur ye king kyu king hta de accha nhi lg rha h Woh mikku ka name h bhai During transpiration the pressure in the internal roots helps in ascent of sap Aisa hi bhai Ashu tune apne name me star kyu banaya h The upward movement of water and minerals in a plant through xylem is called ascent of sap. During transpiration, pressure in the internal roots develop known as root pressure. This root pressure helps in ascent of sap. Thus, transpiration helps in ascent of sap. |
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| 50794. |
Volmeter kisme connect kiya jata h |
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Answer» Parallel Resistance ke parallel Parallel But how and why resistor me (parallel) Parallel so that it takes negligible current from the circuit Parallel |
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| 50795. |
why should magnesium ribbon be cleaned before burning in air ??_? Hey, i\'m koi mera friend banega ? |
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Answer» Because it react with oxygen to form a layer of magnesium oxide that\'s why it cleaned before burnig in air Peptic ulcers are open sores that develop on the inside lining of your stomach and the upper portion of your small intestine. The most common symptom of a peptic ulcer is stomach pain. What is peptic ucler???? No happy kajal Happy belated birthday Ashu Kl apka birthday tha Kyun Because the layer of dust are situated on the magnesium ribbon Because to clean the layer of MgO from ribbon so that it can burn easily Hu frnd only Kya nhi hota kajal Aap mere frnd ni ho ??? Kl mera life ka sbse kharab birtday tha Aisa thodi na hota hai ashu Magar hm frnd nhi bhai banenga kuyki meri ek hi frnd h wah h mikku Hai payal Ji hmm to sbke frnd hain To remove layer of oxide to remove the layer of magnesium oxide |
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| 50796. |
Brain and heart diagram is important for us |
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Answer» Yes Yes Ji han |
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| 50797. |
Role of sexual reproduction in evolution |
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Answer» Chodo wah sab Thx During sexual reproduction, the genetic material of two individuals is combined to produce genetically-diverse offspring that differ from their parents. The fact that most eukaryotes reproduce sexually is evidence of its evolutionary success. In many animals, it is actually the only mode of reproduction. Welcome shreya |
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| 50798. |
What is the minimum temperature required for the working of ocean thermal power plants?? |
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Answer» Sab rat ko mera insta kholana or mera real pic dekh lena or follow bhi kr dena Koi bt nhi gussa mt hona The minimum temperature required for the working of ocean thermal power plants is 20K 20 celcius Ni google s dkha tha.sacchi m?? ?????? Mai bhi aise hi krti hun 25⁰Celsius Mera dekh kar ans de di sis?? atleast 77degree farehniet least 77° Fahrenheit |
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| 50799. |
why do spores remain viable during unfavourable conditions??? |
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Answer» Bye bhai M jara hu ... all the best sbko... bye?\u200d♂️ Sahi bola bhai Mne ni pda ye to yaad hai sb easy sa hai Ha padh liiya sab Haw sb pd liya tb khta hai ki kuch ni pda The spores remain viable during the unfavourable condition because of the presence of the sporopollenin in the pollen grains. It is the polymer of carotenoids. When it comes Sporopollenin, it is a major component of the exine of pollen and spores. It is highly resistant component available in this organic world. Sporengea has layer called cyst which protect them from unfavourable conditions Hii Coz they are protected in sporengea ans do bhai Hii |
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| 50800. |
Can I take any two rays for ray diagrams |
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Answer» apne ?? Lgaya hai na apne reply mein ialiye Samaj ni aya ???mark sk hai kya ki 10mai ho ki nhi Hamm koi ni bro Aapka bhai bhi 10 m hai? Oo topper hai mera bhai Any two rays but with ✅ method.. Yes |
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