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InterviewSolution
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.
| 3251. |
IMPORTANT QUESTION ANSWER OF CHAPET MOTION |
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Answer» Equations ,graph , distance ,and many numericals Acceleration , velocities numerical analysis difference between distance and displacement,speed and velocity.all three equations |
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| 3252. |
Differentiate between solid and liquid and Gas |
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Answer» solid: Has a definite shape and volume. liquid: Has a definite volume, but take the shape of the container. gas: Has no definite shape or volume. change of state: When matter is converted from one of the three states (example: solid, liquid, or gas) to another state. Solid have fixed volume and shape. Liquid have fixed volume but does not have fixed shape. Gases does not have fixed volume and shape. |
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| 3253. |
find the no . of protons, electrons & neutrons in (a) potassium atom (b) calcification ca²+ |
| Answer» Answer (a) protons =19,electrons =19, neutrons = 20 | |
| 3254. |
What is components of solution |
| Answer» The components are solute and solvent | |
| 3255. |
What will be acceleration of a body of 5kilogram of a force of 200Neton is applied to it |
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Answer» 40 metre per second square Acceleration = force / mass= 200N / 5 kg= 40kgms A=f/m200/5 = 40 Kg m/s 40 kg |
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| 3256. |
What is an alloy |
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Answer» An alloy is a uniform mixture. It is made up of two or more chemical elements, of which at least one is a metal. An alloy has properties different from the metals it is made of. Most alloys are made by melting the metals, mixing them while they are liquid to form a solution, then leaving them to cool and turn solid again. . |
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| 3257. |
Can you explain me formula of aceleration of gravity on earth |
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Answer» 9.807mper S square g equal to mass of earth into mass of object by distances between the centre of the earth and objects Yes I can explain |
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| 3258. |
Ma ra paper ha chapter 1,2,10,13, 14, 15 |
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Answer» I will help Kal hi ha |
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| 3259. |
what is speed ? |
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Answer» Distance travelled by a unit time is called Speed? The rate of change of distance is called speed.And formula to find Speed is=Speed = distance / time Distance travelled by the object in unit time. Distance travelled by the object in unit time.The SI unit of speed is metre per second. This is represented by the symbol m s–1 or m/s.Speed is a scalar quantity; it only has direction. Speed is the rate of distance travelled in a given time. |
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| 3260. |
Lab manual work |
| Answer» | |
| 3261. |
What is linetic energy |
| Answer» Kinetic energy:- The energy due to motion is known as kinetic energy. The formula for kinetic energy is ½m(v²-u²).When the initial velocity, u is 0. Then, the formula is ½mv². | |
| 3262. |
What is Collidal solution & difine Tyndal effect |
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Answer» Colloidal sol. Are the sol. Which appears homogeneous but are heterogeneous having size 1 to 100 nanometer.Tyndall effect is the phenomenon in which a beam of light scatters into a colloidal sol. And suspension.I hope you got help. Solution that exists inbetween true solution and suspension is called colloidal solution The phenomenon of scattering light is called Tyndall effect |
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| 3263. |
Differirate between homogeneous and heterogeneous mixture...(3-4 points) |
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Answer» Homogenous MixtureHeterogeneous mixtureThey have uniform compositionsThey have non-uniform compositions.The\xa0components of\xa0homogeneous mixtures\xa0are not physically distinct.Heterogeneous mixture\xa0have physically distinct components. In homogeneous mixture,they have uniform composition and It has no boundaries of separation between its constituent.and makes path visible.In heterogeneous mixture, they have no uniform composition and It has boundaries of separation between its constituent.and makes path visible. In homogeneous mixture particles are uniformly spread throughout the solution eg.sugar in water while in heterogeneous mixture particles non uniformly.e g. Oil and water |
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| 3264. |
What is mass percentage of solution |
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Answer» Mass of solute ÷ mass of solvent×100 What is answer |
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| 3265. |
Newton 1st law of motion define what ? 1. Qualitive 2.quantity 2. Force .. |
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| 3266. |
6g of naoh is dissolved in 100 grams of water? Calculate mass percent of naoh in this solutio |
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| 3267. |
Which of the is true for displacement |
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Answer» The displacement which is shortest distance from the intial position to the final position The displacement which is shortest distance from the intial position to the final position. Shortest distance between initial and final velocity? |
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| 3268. |
10 example of newton second and third law |
| Answer» Example of Newton 3rd law is. 1.Recoiling of gun 2.Flying of rockets.3.birds flying 4.Jumping from boat Etc.....☺️ | |
| 3269. |
What is atomic number..? |
| Answer» Atomic number (z) is the total number number of electrons or protons present in the given element. | |
| 3270. |
Can anyone explain me about mole concept |
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Answer» Thank you very much ?? The\xa0mole\xa0is an amount unit similar to familiar units like pair, dozen, gross, etc. It provides a specific measure of the number of atoms or molecules in a bulk sample of matter. A\xa0mole\xa0is\xa0defined\xa0as the amount of substance containing the same number of discrete entities (atoms, molecules, ions, etc.) |
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| 3271. |
Explain cooling caused by evaporation |
| Answer» As perspiration\xa0evaporates\xa0it absorbs heat to\xa0cool\xa0your body. The principle underlying\xa0evaporative cooling\xa0is the fact that water must have heat applied to it to change from a liquid to a vapor. | |
| 3272. |
Definition of motion. (class 9) |
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Answer» Changing of time The phenomenon of change of position of object with time is called as motion. Movement of any object from one position to another position with respect to the observer is called as Motion. |
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| 3273. |
Why is g called universal gravitational constant |
| Answer» G is called universal gravitational constant because it is constant everywhere in the universe. | |
| 3274. |
what are the Functions of epidermis |
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Answer» It is the protective tissue it is present on the aerial part of a cell The epidermis act as a protective tissue . It secretes waxy water resistant coating which prevent water loss in plant . It protect plant from invansion of fungi . In roots epidermis has long hair like structure which prevents water loss The epidermis aids in protection against loss of water, mechanical injury and invasion by parasitic fungi. Since it has a protective layer to play, cell of epidermis tissue form a continuous layer without intercellular spaces. It protects the cell and is present in outermost part of cell |
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| 3275. |
What is Force ? for 9th standard |
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Answer» A force is an effort that changes the state of an object at rest or at motion. It can change an object\'s direction and velocity.Force can also change the shape of an object. Push and pull is called force A force is an effort that changes the state of an object at rest or at motion. An external agent that causes an object to move or to come to rest from it\'s motion is called force. ORAn external agent that causes push or pull on an object is called force. In physics, a force is any interaction that, when unopposed, will change the motion of an object. A force can cause an object with mass to change its velocity, i.e., to accelerate. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity |
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| 3276. |
convert into mole 90g of water |
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Answer» 5moles 90/H2O =90/1×2+16=90/18=5mole 5mole 30.11×10^23 |
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| 3277. |
Sir muje physics ke 1234chapter ke notes chsiye |
| Answer» Notes are available on website already | |
| 3278. |
What is mole concept. ??? . |
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Answer» It is used to find the number of molecules in given amount of molecule. Mole introduce a relationship known as mole concept.. Mole is the number of all the atoms and molecule in gram one Mole is equal to 6.022multiply by 10 ki power 23 |
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| 3279. |
chapter 5 |
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| 3280. |
What is the function of areolar tissue |
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Answer» Acts as a binding tissue.Bind the skin with muscles.Bind the blood vessels and nerves with other structures of body.Helps in healing of wounds It connects the organ loosely |
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| 3281. |
What do you mean by cell organelles? |
| Answer» Cell organelles are organelles which helps body to perform | |
| 3282. |
Define electrons & neutrons & protons |
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Answer» Electron - The negatively charged atomic sub-partical, which revolve around nucleus. It was discovered by J.J. Thomson. It\'s weight is 1/2000 times of proton.Proton - It is the positively charged atomic sub-partical. It was discovered by E. Goldstein. It is inside the nucleus and it\'s weight is 2000 times of electron.Neutron - It is neutral (with no charge) atomic sub-partical. It was discovered by Neil bohr. It is present inside the nucleus. Electron Negative chargeOutside nucleusMass 9.1*10^-31kgCharge 1.6*10^-19CNeutron No chargeInside nucleusMass 1.6*10^-27 kgCharge zeroProtonPositive chargeInside nucleusMass-same as nucleusCharge -1.6*^-19 |
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| 3283. |
Who discovered the protoplasm ??. |
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Answer» J.E. Purkinje Jan Evangelista Purkinje Jan evangelista purkinje |
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| 3284. |
What is the difference between weight and mass?? |
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Answer» Weight of an object can be zero but mass cannot be zero.weight of an object can be change from place to place but mass of an object can never be change Mass is the total amount of material present in a person\'s body Eg. On any planet mass of a person will never change.Weight is the force by which earth is pulling you (or in short gravitational pull of earth)Eg. Weight of a person will be different of that his/her weight on earth. |
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| 3285. |
I want class 9 science previous year in Hindi medium... |
| Answer» | |
| 3286. |
A person standing in a bus falls backward when bus is start moving suddenly, explain the reason |
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Answer» Due to the inertia,the one tends to remain at its position which makes him fall backward Due to inertia of rest When a\xa0bus starts suddenly,the\xa0person falls backwards\xa0because of inertia of rest of passenger. This is due to the fact that because of their inertia ,the passengers tend to remain in their state of rest when the\xa0bus starts suddenly. |
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| 3287. |
Give differences between distance and displacement |
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Answer» Displacement of object can be zero but distance never be zeroDistance ha no fixed direction but the displacement have a fixed direction #Distance is defined as product of speed and time#Displacement is defined as product of velocity and time# Distance is a scaler quantity #Displacement is a vector quantity #Distance is not independent # Displacement is independent |
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| 3288. |
What Browanin Movement? |
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Answer» Brownian movement is continuous zig Zag movement of particles in a colloidal solution Zigzag motion Under this phenomenon ,some quantity undergoes small and random fluctuations |
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| 3289. |
Balanced diet is required to cure nutritional deficiency why? |
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Answer» Because due to taking balanced diet we get proper nutrition which helps to build a healthy body and a proper mental growth No no no no |
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| 3290. |
What is tissie |
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Answer» A group of cell known as tissue Tissue * A group of cells A group of particular types of cell |
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| 3291. |
Feature of cells |
| Answer» Cells are the functional and structural unit of lifeCells contain different organellesCell has a nuclear membrame, cytoplasm, nucleasBut in a plant cell it alsonhas a cell wallCells organrlls are interconnectedIf one organelles die the entire cell die | |
| 3292. |
How to separate iron needle from sand |
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Answer» Nice By magnetic separation The magnetic separation is a process in which magnetically susceptible material is extracted from a mixture using magnetic force. This is best way to separate the mixture of sand and iron fillings as iron is attracted by magnet. |
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| 3293. |
Name two elements which exists in liquid state at room temperature |
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Answer» Mercury Bromine and para |
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| 3294. |
What is the name given to the centre of an atom which is positively charged |
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Answer» Proton Nucleus Molecule |
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| 3295. |
Which of the below is a viral infection ?A. Typhoid B. Cholera C. Influenza D. Maleria |
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Answer» Influenza Influenza Cholera |
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| 3296. |
Copper is a pure substance yes or not |
| Answer» It is a metal which is pure | |
| 3297. |
A simple defination for nucleoid |
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Answer» Undeveloped nucleus of prokaryotic cells The nucleoid is the space within a prokaryotic cell where the genetic information, called the genophore, is found. Prokaryotes are divided into bacteria and archaea, which are both unicellular organisms that contain no membrane-bound organelles. The nucleoid, then, also has no membrane around it. Poorly defined nuclear region due to absence of nuclear envelope and nucleolus is known as nucleoid |
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| 3298. |
Name 2 dieses caused by fungi |
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Answer» Aids,polio Aids , polio, chickenpox, rabies, measles. Skin disease 1. Gatii infection 2. Valley fever |
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| 3299. |
Define disease (1 mark) |
| Answer» Malfunctioning of human body is known as disease. | |
| 3300. |
How are living organisms dependent on the soil? |
| Answer» Living organisms are dependent on the soil in the following ways: All the plants (even aquatic), on which almost all the organisms depend directly or indirectly for food, grow in the soil, which provides them with nutrients and water for development. | |