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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your Class 11 knowledge and support exam preparation. Choose a topic below to get started.
| 4251. |
dt÷t |
| Answer» d<br>That is integral of dt/t<br>Log t +C | |
| 4252. |
Relative vectors |
| Answer» | |
| 4253. |
Which question is most important in ch- law of motion |
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| 4254. |
Diffrentiate the following functionsx square _ 4x +5(x cube _2) |
| Answer» 2x-4+15x^2-0 | |
| 4255. |
What is differentiation and how to solve problems by differentiation |
| Answer» The differentiation of a function f(x) is represented as f\'(x). If f(x) = y, then f\'(x) = dy/dx, which means y is differentiated with respect to x. Before we start solving some questions based on differentiation, let us see the general differentiation formulas used here. Function f(x) = y.Differentiate x5\xa0with respect to x.Solution: Given, y = x5On differentiating w.r.t we get;dy/dx = d(x5)/dxy’ = 5x5-1\xa0= 5x4Therefore, d(x5)/dx = 5x4 | |
| 4256. |
What is parralax method? |
| Answer» Parallax is a displacement or difference in the apparent position of an object viewed along two different lines of sight, and is measured by the angle or semi-angle of inclination between those two lines. | |
| 4257. |
Convert a power of one mega watt on a system whose fundamental units are 10kg, 1dm, and 1minute |
| Answer» | |
| 4258. |
1amstrong is equal to |
| Answer» 10^10m<br>0.1nanometer.. | |
| 4259. |
From which chapter i should start the study |
| Answer» The 2nd chapter is best for start the study<br>I think you will be start your study for the chapter 2 because this chapter was basic to start u understand<br>5th chapter<br>I think better to study from the first chapter. | |
| 4260. |
What is unit?? |
| Answer» The Standard used to measure any physical quantity is called unit.ex: time is physical quantity which is measured by second<br>E.g. cm m kg K A ....etc etc | |
| 4261. |
What is the law of physic |
| Answer» By nature, laws of Physics are stated facts which have been deduced and derived based on empirical observations. Simply put, the world around us works in a certain way, and physical laws are a way of classifying that “working.” | |
| 4262. |
Why study of physics is interesting |
| Answer» No it is so difficult<br>Because physics deals with the study of nature and natural phenomenon also scope of physics is very interesting and exciting so i think that is the reason we can say that the physics is interesting<br>It makes us knowledgeable about our physical world...nd phenomenon related to our globe... | |
| 4263. |
What is the range of gravitational force |
| Answer» infinity | |
| 4264. |
I have some problems |
| Answer» Sakhi which problem ?<br>What is your question<br>What | |
| 4265. |
Value for 2pi rad? |
| Answer» | |
| 4266. |
Parallax errors derivation |
| Answer» | |
| 4267. |
How to find out position of a particular object with respect to other object? (From Vector Calculus) |
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| 4268. |
Differentiation question |
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| 4269. |
Define each of fundamental forces and write their properties? |
| Answer» The forces which we see in our day to day life like muscular, friction, forces due to compression and elongation of springs and strings, fluid and gas pressure, electric, magnetic, interatomic and intermolecular forces are derived forces as their originations are due to a few fundamental forces in nature.A few fundamental forces are:\tGravitational Force: It is the force of mutual attraction between any two objects by virtue of their masses. It is a universal force as every object experiences this force due to every other object in the universe.\tElectromagnetic Force: It is the force between charged particles. Charges at rest have electric attraction (between unlike charges) and repulsion (between like charges). Charges in motion produce magnetic force. Together they are called Electromagnetic Force.\tStrong Nuclear Force: It is the attractive force between protons and neutrons in a nucleus.It is charge-independent and acts equally between a proton and a proton, a neutron and a neutron, and a proton and a neutron. Recent discoveries show that protons and neutrons are built of elementary particles, quarks. | |
| 4270. |
Define Newton\'s law of gravitation |
| Answer» Tuhi bhut pyaar krti h??❤️❤️<br>??? but tuhi mere liya bhut acchi h aur kisi ki zarurat nii h❣️❣️mereko<br>Wow white ???<br>Tere mamu mausi sb meri smjh se bhar h mere pass esa koi n h ????<br>Accha mena white shirt aur green jeans ?<br>Mamu mujhse mikka bolte hain<br>Or mere mama bole ki "mikka achha lga rha hai tu "<br>Nhi 1:00 bja tha tb fhir bhaiya pd rhe the toh unhone IIT ki basan diya ?<br>Ptahe aaj mene patiala suit phna hai Black color me or salwar bhi black or pink dupatta ?<br>Oh esa to chat pdke so gye<br>Ptani neend nhi aayi fhir mena teri aur meri chat pdi ? fhir sochta rha tera bare m ????<br>Mummy ne kuch kha nhi<br>Oh ??<br>Fhir ma 3:10 ke aaspaas soya 11:00 bje utha subha?<br>Kyon esa kyon need kyon nhi aayi<br>Sach me<br>Kl mujhe 3 bje tk neend nhi aayi ?<br>Ok ??<br>Abhi rukja jaani ? kl pkka ok???<br>Khana khaya acche s ?<br>Upr waale q me aao<br>Aagya ???<br>Abhi rukja kl clenga uspar aaj 500 msg krenga ispar ok??<br>Kidr ho ??<br>Hae aagyi meri jaan,??<br>Yaar tum log upr physical world waale q pr aa jao<br>Hello yogita poocho kya problem hai<br>Kya Koi hai<br>Hello<br>Kya advice chaiya pucho ?<br>misunderstanding hogyi sorry ji ??<br>sorry ???<br>aap hmen fhir report krdogi plz ab hm kisi ko preshan nii kr rhe apna bhut alg h plz ?don\'t disturb us btt aap ko kya puchna h puchlo<br>kya ,??<br>Dekhta k phle 10 ke result ki tension h<br>Pr me sayad nhi aa paun dekh lungi ok<br>Abhi kese dekhun baad me dekh lungi tu kuch or bta<br>agya madam?❤️<br>dekh zra ?????<br>Raat ko me nji aa payi to isliye abhi aaja<br>aaagya vo mene insta pr story dali h dekh zra ??<br>Itni jldi chla gya ??<br>❤❤❤<br>Aaja yaar me aa gyi<br>Nhi bol me aa gyi<br>ab tu busy hogi? thk h ab raat ko hi aaunga<br>Sorry *<br>Love you ?? mere king<br>Hmm ptani teri mummy hi jane unhe mujse kya dikkat h??<br>Call mt krna ok☺<br>H<br>Yaar ye sb hmare sath hi kyu hota hai<br>Chupke se aanapda<br>Pommy ne phone ko choone se mna kr diya tha isliye time pass basement ki deewal khrab krke ho rha tha<br>Helli sorry jaan vo me wall decorated kr rhi thi<br>Hmm ??????<br>Oh ?<br>Are n bekar nii khilaunga agli baar acche khilaunga apni jaan ko,???<br>Hae meri jaan ??<br>Tujhe yakeen n h????<br>Insta pr story dekhla<br>???<br>Ok bye love you<br>? ok | |
| 4271. |
How we define magnetic fields |
| Answer» Surrounding area of magnet in which north part moving towards south part<br>A magnetic field is a vector field that describes the magnetic influence of electric charges in relative motion and magnetized materials. The effects of magnetic fields are commonly seen in permanent magnets, which pull on magnetic materials (such as iron) and attract or repel other magnets. | |
| 4272. |
Hey madhav |
| Answer» | |
| 4273. |
Length---> e^2 / 4πEo , c , GThese(3) are physical quantities of lengthExpress in MLT |
| Answer» | |
| 4274. |
Value of 1degree in radian |
| Answer» Since π rad = 180 degreeHence 1degree= (π/ 180)rad | |
| 4275. |
Explain Kepler\'s law of planetary motion |
| Answer» Kepler’s Three Law:1*- Kepler’s Law of Orbits – The Planets move around the sun in elliptical orbits with the sun at one of the focii.2*- Kepler’s Law of Areas – The line joining a planet to the Sun sweeps out equal areas in equal interval of time.3*- Kepler’s Law of Periods – The square of the time period of the planet is directly proportional to the cube of the semimajor axis of its orbit. | |
| 4276. |
what are derived quantities and what they include? |
| Answer» Derived quantities are derived from fundamental quantities.for example- volume = m x m x mAnd area = m x m etcDerived quantities are quantities that are calculated from two or more measurements. They include area, volume, and density.<br>kya aap meri girlfriend bano ge<br>hii<br>Derived quantities are quantities that are calculated from two or more measurements. They include area, volume, and density. ... The volume of a rectangular solid is calculated as the product of its length, width, and height. The density of an object is calculated as its mass divided by its volume | |
| 4277. |
A disc revolves with a speed of 33 1/3 rev/min and has a radius of 15 cm |
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| 4278. |
Good afternoon (∩ ͡° ͜ʖ ͡°)⊃━☆ﾟ✧･ﾟ: *✧･ﾟ:* |
| Answer» Veeru=bhai ????<br>Hello<br>thk h me call nii krunga nahi tu krio ok, love u❤️?<br>Baad me dekhti Hoon ok love you bye<br>Mt<br>Call my krna me jaa rhi join bhar ok<br>aagya janni,??<br>Are khan ho [email\xa0protected]?<br>Veeru are you present here if yes then reply to me<br>Veeru aaj me dophr me nhi aaungi ok | |
| 4279. |
What is the difference between scalar and vector |
| Answer» Scalar has only magnitude but not direction and vector has both....<br>A vector quantity has a direction and a magnitude, while a scalar has only a magnitude. You can tell if a quantity is a vector by whether or not it has a direction associated with it.<br>Scalar and vector are both physical quantities but the difference is that scalar has only magnitude but no direction while as vector has both magnitude and direction .... Scalar example : distance ... Vector example : displacement | |
| 4280. |
Define reserve resources |
| Answer» Reserve resources are those resources which we know their use and how to use them but we have kept them for future use. For example, USA has plenty of oil and gas reserves but it imports oil and gas and has kept its own reserves for future use.<br>Hello kya koi ha<br>Good mrng❤️?<br>Tum lod doubtnut par ho..<br>tu msg mt krna<br>Love you jaan<br>Ok bye<br>Please samjhne ki koshish kro tyagi<br>Iski id iski didi bhi chlati hain<br>Usse mt mango uski id merr se bolo<br>Sorry pr aap kya krogi iski id se<br>Byy yha baat na kr zyada msg bdenga fhir problem ho skti h ok ab msg n krna baad ma krna okk<br>Uske baare me kuch poochna hai to mujhse poocho isse jyada iske bare me main jaanti hoon<br>Apni id bato veeru<br>Ok meri jaaaaaaaaaaannn<br>Jaani call glti sa bhi mt krio bina bola ok<br>Vo hai insta pr lekin hm vhan baat nhi kr skte<br>Suno veeru tm ho kya insta. Pr bhi<br>Ok bye meri jaan king veeru or meri duniya<br>Oo soo sad ?<br>Haa pta he pr vo log hmare pyaar ko nhi dekhte<br>Me jaa rha hu byy luv u ❤️❤️ take care okk<br>Thk h rhna da krio bhi mt<br>Oo ok to tm dono compound mates , tm dono ki family to thumara relationship ka bara ma pta ha kya<br>Saayad nhi kr paaungi<br>Nii abhi krle 2 y 3 minute ma fhir na me jaaunga aur mujhe tere par pura bharosa h agar vo kuch khe to daat toddunga uske btt agar ma uski bolta totu ya bolti curfue h bta kya bolu<br>Pr tu naa krna me tujhe bta dungi ok<br>Wait koshish krungi<br>Class mate nhi hai isi ka to dukh hai itna hai sirf mathura me rhte hain ek compound me<br>Call krle<br>Mene phle hi use mna kr diya ok??<br>Tm dono class mate ho kya ?<br>Achha curfew ki tension hai pr me ek ldke ke saath khelne jaaun uska kuch nhi h?<br>Stay home stay safe<br>Kyon<br>Curfue h<br>Nhi<br>Ashish ke saath<br>Phle bta jaaun kya<br>Baat krni hoto krle me nii kr paunga<br>Bol na<br>Veeru bhar ashish bula rha hai badminton khelne jaaun kya<br>Thk h toh kr<br>Yaar hm jyaada di baat nhi krenge<br>I❤️u<br>Bolna ?<br>Bol,<br>Are sun to<br>Fassse fhir sa ok??<br>Me nii chahta koi pase<br>Dil ke armaan aanshuon me rh gye ...........?<br>Are koi report krdega<br>Kidhr jaa rhe ho<br>Call mt krio okk plzz ❤️ byy<br>Teri aawaz bilkul masoom jesi lg rhi thi joki tu sirf dekhne me hai<br>Ok nhi krungi<br>Tu koi or app dood le pr esa jisme notification naa ho ok<br>Bilkul na krna call ok<br>Sunn tu bhi call mt krna ok<br>Or mamu usse aage waale main<br>Call mt kr mami hai side waale room main<br>Are rhnda h okk byy ❤️❤️<br>Naa tu mt kr ye meri mami ka phone hai<br>Sorry me kru<br>Yaar mera bhut mnn kr rha hai bhr jaane ka pr koi nii fir me tujhse baat nhi kr paaungi<br>Tu call kr<br>Kya hua ,?<br>Hae me ke bolun tu hi bol jo tanne bolna ho<br>Kya haal h ?<br>Hmm btao madam ?<br>? | |
| 4281. |
If X- component of a vector is -25 units and y-componemt is 40 units then magnitude and direction is |
| Answer» | |
| 4282. |
How to calculate distance of planet by a method described by corpenius |
| Answer» | |
| 4283. |
How many significant figures 1.00100 have? |
| Answer» 6 | |
| 4284. |
How many significant figures 34.000 have?? |
| Answer» Yes, it contains 5 significant figures.<br>Becoz zeroes after the decimal point are significant<br>Why not 2..???<br>It contains 5 significant figures | |
| 4285. |
Plz define accuracy and precision in simple words |
| Answer» Accuracy : tend to be in one directionPrecition : which occur irregular<br>\xa0In measurement of a set, accuracy refers to closeness of the measurements to a specific value, while precision refers to the closeness of the measurements to each other. Both accuracy and precision reflect how close a measurement is to an actual value, but accuracy reflects how close a measurement is to a known or accepted value, while precision reflects how reproducible measurements are, even if they are far from the accepted value. | |
| 4286. |
What is the meaning of solid angle?? |
| Answer» It means anhle of 3-D figure<br>Surface area/r^2<br>A steradian is the SI unit of solid angle.It can be defined as the solid angle substended at a center of an unit,sphere by a unit area on its surface.For a general sphere of radius r, any portion on its surface with area A=r2\xa0 | |
| 4287. |
Unit of angular momentum |
| Answer» Kilogram.meter square per second<br>Radian/sec<br>Angular momentum is the property of any rotating object given by moment of inertia times angular velocity.It is measured using SI base units: Kg.m2.s-1 | |
| 4288. |
Ncert book exercise Q.no-2 cannot understand |
| Answer» | |
| 4289. |
Define centripital and tangential acc. And find its value. |
| Answer» tangential acc. is rate of change of speed and centripotal acc.is v2/r | |
| 4290. |
Can any body explain me the formula of intataneous velocity |
| Answer» The velocity of an object under motion at a specific point of time.The instantaneous velocity formula is given byVi =limΔt→0 ds/dtWhere,\tΔt is the small time interval.\tVi is the instantaneous velocity.\ts is the displacement.\tt is the time. | |
| 4291. |
Define term elasticity |
| Answer» Elasticity is that property of a material of a body by virtue of which it opposes any change in its shape or size when deforming force are applied on it , and recover its original state as saon as the deforming force are removed.<br>The property of a body that it can regain its original shape or size after the removal of deforming force. This property is known as elasticity.<br>The property of a body by virtue of which the body tries to regain its original shape after the removal of deforming force, is called as Elasticity. | |
| 4292. |
Write the dimensional equation of velocity force |
| Answer» | |
| 4293. |
if a wet piece of wood burns then water droplet apperar on the other end?why |
| Answer» This is because the piece of wood contains moisture. When a piece of wood burns, moisture is converted into steam and travel to the end of piece of wood. Since the end of piece is cool, the steam is turned into water n the water droplets appear at the end.... | |
| 4294. |
What simple Pendulum ? |
| Answer» A simple pendulum is just a pendulum made out of a small object attached to a light string. Ideally, it is a “point” particle attached to a massless string which is fixed to a pivot point. If the pendulum is displaced from equilibrium, it swings back and forth, and its motion is periodic. | |
| 4295. |
How will the momentum of a body change if its kinetic energy is doubled?? Please jaldi btana ans.? |
| Answer» Momentum is directly proportional to velocity. | |
| 4296. |
What is Zeroth law of Thermodynamic. |
| Answer» Kaise ho<br>Hlw<br>Hyyyyyyy<br>Hyyy<br>Hmm<br>Helllo<br>Hi<br>According to this law ,if two thermodynamic systems A and B separately are in thermal equilibrium with C then A and B are also in thermal equilibrium with each other. | |
| 4297. |
Prove the Bernoulli theorem |
| Answer» The sum of pressure energy , kinetic energy and potential energy of liquid remains constant\xa0Bernoulli\'s principle states that an increase in the speed of a fluid occurs simultaneously with a decrease in pressure or a decrease in the fluid\'s potential energy.Derivation :\xa0Let the velocity, pressure and area of a fluid column at a point A be v₁,\xa0p and A₂ and at another point B be v₂,\xa0p₂,\xa0p₂ and A₂ .Let the volume that is bounded by A and B be moved to M and N .let AM = L₁ and BN = L₂ .Now if we can compress the fluid then we have,A₁L₁ = A₂L₂Net work done per volume = p₂ - p₁Kinetic energy per volume = 1/2\xa0ρ v²Kinetic energy gained per volume = 1/2\xa0ρ (v₂² - v₁²)\xa0Potential energy gained per volume =\xa0ρ g(h₂ - h₁)\xa0Now ,\xa0p₁ - p₂ = 1/2\xa0ρ (v₂² - v₁²) +\xa0ρ g(h₂ - h₁)\xa0p₁ - p₂ = 1/2\xa0ρ v₂² - 1/2\xa0ρ v₁² +\xa0ρ g h₂ -\xa0ρ g h₁p₁ + 1/2\xa0ρ v₁² +\xa0ρ g h₁ = p₂ +\xa01/2\xa0ρ v₂² +\xa0ρ g h₂p + 1/2\xa0ρ v +\xa0ρ g h = constant\xa0Applications :\xa0The top of the airplane wing is a little curved and the bottom is completely flat. But air travels across both parts of the wings simultaneously in the sky.The entire pitch of the baseball is working on the principle of Bernoulli’s theorem. The stitches of the ball can be seen forming a curve which makes it necessary for the pitcher to grip the ball’s seams.<br>Proving net see search kar loo becos bari hai aur time jada lag jaye ga<br>Bernoulli theorem states that the sum of pressure energy. Kinetic energy and potential energy per unit volume of an incompressible non viscous fluid in an streamlined irrational flow. | |
| 4298. |
What is the effect of viscosity of liquids |
| Answer» In case of liquid, cohesion (molecular attraction is dominant). Therefore, if the temperature of liquid is increased, its cohesion and hence viscosity is decrease. | |
| 4299. |
Work energy theroem |
| Answer» Work done by all the forces (conservative or non- conservative , external or internal) acting on a particle or an object is equal to the change in its kinetic energy. So work done by all the forces = change in kinetic energy W = Delta KE | |
| 4300. |
Define coefficient of viscosity and obtain its dimensional formula |
| Answer» Coefficient of viscosity is equal the viscos force when area and velocity gardient is unity.<br>Coefficient of viscosity of a liquid is numerically equal to viscous force per unit area, which maintain a unit velocity gradient between two parallel layers.Dimensional formula of viscosity is [ML-1T].<br>Coefficient of viscosity is defined as tangential force required to maintain a unit velocity gradient between two parallel layers of liquid of unit area.>Mathematically,Coefficient of viscosity (η)= Fr/Av where F = tangential force, r = distance between the layers , v = velocity.Dimensional Formula of Force = M1L1T-2Dimensional Formula of Area= M0L2T0Dimensional Formula of distance= M0L1T0Dimensional Formula of velocity= M0L1T-1Putting these values in above equation we get,[η]= [M1L1T-2][M0L1T0] / [M0L2T0] [M0L1T-1] = [M1L-1T-1]Dimensional Formula of Coefficient of viscosity (η)=[M1L-1T-1]SI unit of Coefficient of viscosity (η) is Pascal-second | |