InterviewSolution
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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.
| 201. |
Derived formula and error kaise kare |
| Answer» Learn dimesonal formula<br>Formula kiska derive karna hain . I don\'t understand ur question. | |
| 202. |
projecttile explanation |
| Answer» | |
| 203. |
Y=4x³ |
| Answer» 12xpower2 | |
| 204. |
what is impulse?? |
| Answer» Impulse of a force is defined as the product of force and the time for which force is acting.\xa0<br>It is large effect of force for short period of time<br>Impulse\tImpulse is defined as a force multiplied by time it acts over.\tFor example: Tennis racket strikes a ball, an impulse is applied to the ball. The racket puts a force on the ball for a short time period.<br>The force which act on a body for short time period. Impulse =force *time | |
| 205. |
Question based on differentiation & integration |
| Answer» Search on Google | |
| 206. |
Who was the father of modern physics |
| Answer» Father of modern physics is Galileo galilei.Some people consider albert instein as father of modern physics also.I hope this may help you.<br>Galileo Galilei<br>Yes,It is a physics ques.<br>Please tell,is this a physics ques. or history ques.Then I will give the answer. | |
| 207. |
Who was the father of classical physics |
| Answer» Sir Isaac Newton<br>Issac Newton<br>Father of classical physics is Sir Isaac Newton. | |
| 208. |
What is SI unit? Explain in details.. |
| Answer» SI unit is a physicle quantity that we used to calculating and analyzing . And internationaly accepted there are 7 SI units<br>SI units are a set of fundamental units from which other units are derived. The 7 fundamental units according to SI are m,kg,s, mol, ampere, candela, kelvin | |
| 209. |
Derivation of deceleration class 11 |
| Answer» | |
| 210. |
what is the accleration? |
| Answer» Change in velocity per unit time<br>Accleration is the rate of change of velocity with respect to time<br>Acceleration means the rate of change of velocity with the time<br>Change in velocity per unit time is known as acceleration | |
| 211. |
What is personal errors |
| Answer» The error which caused by human because of defictive of parts<br>An error comes into play because of faulty procedure adopted by by the observer is called "PERSONAL ERROR". | |
| 212. |
What is kilogram? |
| Answer» Hye Nidhi I know it....<br>It is a unit<br>The kilogram is the base unit of mass in the metric system, formally the International System of Units, having the unit symbol kg. It is a widely used measure in science, engineering, and commerce worldwide, and is often called a kilo. The kilogram is almost exactly the mass of one litre of water. Wikipedia1 kg in: is equal toUnit system: SI base unitUnit of: MassSymbol: kgBritish Gravitational: ≈ 0.0685 slugs | |
| 213. |
What is rest mass?? |
| Answer» | |
| 214. |
A passenger sitting in a car at next, pusher the car from within.the car doesnt move,why? |
| Answer» The car doesn\'t move because \'push\' is an internal force. | |
| 215. |
SI unit for force |
| Answer» Sorry, newton<br>(?)=dumbled shape<br>Newton n<br>Mass x acc (MLT-2)T miuns 2to the power it\'sAlso newton never write Newton otherwise ur marks may be cut in exam<br>Newton | |
| 216. |
what is phyise ? |
| Answer» Physics is a natural. Science which deal with concept of natural environment etc<br>Physics is a natural science | |
| 217. |
What is means by significant error |
| Answer» Significant figures. Whenever you make a measurement, the number of meaningful digits that you write down implies the error in the measurement. For example if you say that the length of an object is 0.428 m, you imply an uncertainty of about 0.001 m | |
| 218. |
Why is physics important for us?? |
| Answer» ?<br>No! Gyus physics is important to get good marks and % in 12th board examinations<br>Good question..... Physics is important becoz it teaches us working of nature and it\'s component.... As maths is also important to us becoz it\'s language of physics<br>Yes..its correct..<br>Physics isimportant because physics is the study of nature | |
| 219. |
Relation between parsec and light year |
| Answer» A parsec is equal to about 3.26 light-years(31 trillion kilometres or 19 trillion miles) in length.<br>A light year is the distance covered by light in one year at the speed of 300,000 kilometres per second.A parsec is the short of parallactic second,it is an astronomical unit of length used to measure distances to objects outside the solar system.It is the distance at which an arc of length one astronomical unit subtends an angle of one second of an arc.1 parsec= 3.26163626 light years1 light year = 0.30659458 parsec. | |
| 220. |
Experiment of manual book |
| Answer» | |
| 221. |
What is the dimension of force |
| Answer» MLT is the power -2 inverse<br>The\xa0dimension of force\xa0is [MLT−2]<br>The dimension of a physical quantity is defined as the powers to which the fundamental quantities are raised in order to represent that quantity. The seven fundamental quantities are enclosed in square brackets [ ] to represent its dimensions.<pre>\xa0Force applied on a body is the product of acceleration and mass of the body</pre>Force = Mass × AccelerationDimension of Mass = [M]Dimension of Acceleration = [LT-2]Dimension of Force will be = [M] × [LT-2][Force] = [MLT-2] | |
| 222. |
Name and type of errors |
| Answer» Error are commonly three types Systematic errorRandom errorGross errorBut main errors areAbsolute errorRelative errorAnd percentage error | |
| 223. |
Frequency |
| Answer» Frequency, is\xa0the number of waves that pass a fixed point in unit time.<br>Number of oscillation in 1 sec , is called frequency | |
| 224. |
For the given velocity time graph plot the corresponding St graph and at graph |
| Answer» | |
| 225. |
To measure the diameter of a thin wire using screw gauge |
| Answer» | |
| 226. |
Find the differentiation of 2(xsquare-1)/(xsquare+x+1)square |
| Answer» | |
| 227. |
Derivation of all units given at the last of book |
| Answer» | |
| 228. |
Is a vector necessarily changed if it rotated through an angle |
| Answer» Yes the vector will be necessarily changed if it is rotated on an angle because vectors are those quantities which are dependent on the direction as well | |
| 229. |
Questions on scalar product |
| Answer» Answer of scalar product don\'t include directions | |
| 230. |
what is the unit of Force in CGS system?? |
| Answer» Dyne<br>Dyne<br>Dyne<br>Dyne.<br>Dynr | |
| 231. |
V2-u2= |
| Answer» 2as<br>2as | |
| 232. |
Please answer my question please please please please please |
| Answer» First ask the question<br>Tell me the question i will help uu<br>Which question<br>Yes | |
| 233. |
If a cap minus b cap is equals to root 2 then calculate the value of a cap + root 3 bcap |
| Answer» Was you asking for this quetion | |
| 234. |
Difference between speen and velocity |
| Answer» \tSl. No.Differentiating PropertyVelocitySpeed1DefinitionVelocity can be defined as the rate at which an object changes position in a certain direction.The rate at which an object covers a certain distance is known as speed.2Type of quantityVector quantityScalar quantity3MagnitudeVelocity can be zero, negative, or positive.Speed can never be negative or zero.4Change of directionThe velocity of the object changes with the change in direction, therefore the object must follow one direction.The average speed will continue to count even if the object change direction.5Change with timeVelocity can decrease with time. For a moving object, it can be 0.Speed never decreases with time. For a moving object, it is never 0.6InterrelationAn object may possess different velocities but the same speed.Speed may or may not be equal to velocity.7Unit (SI)Velocity is measured in m/sSpeed is measured in m/s\t<br>Bhan chod | |
| 235. |
What is resolution ? |
| Answer» Resolution is a measure which tells how presize A measurement is | |
| 236. |
Convert G=6.67×10¹¹ Nm²kg–² into cm³s–²g–². |
| Answer» | |
| 237. |
Hiw to learn dimensional formulae |
| Answer» And where were density,tension,these were very imp.formulae<br>Mainly u have to learn the formula of force and rest u can derive easily but main 4 are speed acceleration force and work learn these that was enough and unless to learn all | |
| 238. |
What are the domains used in the study of physics. Describe with their subcontent |
| Answer» | |
| 239. |
How to solve questions on vectors easily |
| Answer» U must have to understand the concept of vector and practice the derivations and first u u have to prefer ncert and unless and until u will practice the question u cannot understand that | |
| 240. |
What is differentiation of rootX+1/rootX |
| Answer» | |
| 241. |
How many significant digits are in 0.45678000 |
| Answer» 8<br>8<br>8 significant digits are there.<br>8 ... As we know that a zero having digit on its left side may or may not be significant ... whereas zero in the right side may be significant<br>8<br>5<br>8<br>8 | |
| 242. |
What is the easy definitio of physics |
| Answer» Physics is the branch of science that deals with the study of nature and natural phenomenon.<br>physics is a branch of science that deals with nature and natural phenomina. | |
| 243. |
How can we derive three equation of motion graphically |
| Answer» First Equation:Acceleration is defined as the rate of change of velocity.Let, V = final velocity;\xa0Vo\xa0= initial velocity, T= time, a =acceleration.By definition of acceleration:{tex}a = \\frac{{V - {V_o}}}{T}{/tex}{tex}at = V - {V_o}{/tex}{tex}V = {V_o} + {\\rm{ }}at{/tex}Since,\xa0Vo\xa0=u = initial velocitytherefore\xa0V = u +atSecond Equation:Let at time T=0, body moves with initial velocity u and at time ‘t’ body has final velocity ‘v’ and in time ‘t’ it covers a distance \'S\'.AC = v, AB = u, OA = t, DB = OA = t, BC = AC - AB = v - uArea under a v-t curve gives displacement so,S= Area of triangle DBC + Area of rectangle OABD .......(i)Area of {tex}\\Delta DBC = \\frac{1}{2} \\times Base \\times Height{/tex}=\xa0{tex}\\frac{1}{2} \\times DB \\times BC{/tex}=\xa0{tex}\\frac{1}{2} \\times t \\times \\left( {v - u} \\right){/tex} ......... (ii)Area of rectangle OABD\xa0{tex}= length \\times breadth{/tex}=\xa0{tex}OA \\times BA{/tex}=\xa0{tex}t \\times u{/tex} ......... (iii)From (i), (ii) and (iii)S= ut+\xa0{tex}\\frac{1}{2} \\times t \\times \\left( {v - u} \\right){/tex}S= ut +\xa0{tex}\\frac{1}{2} \\times t \\times at{/tex}S= ut +\xa0{tex}\\frac{1}{2}a{t^2}{/tex}\u200b\u200b\u200b\u200b\u200b\u200b\u200bThird Equation:\u200b\u200b\u200b\u200b\u200b\u200b\u200bLet at time t=0, the body moves with an initial velocity u and time at ‘t’ has final velocity ‘v’ and in time ‘t’ covers a distance ‘s’Area under v-t graph gives the displacementS = Area of {tex}\\Delta{/tex}DBC + Area of rectangle OABDS = {tex}\\frac{1}{2} \\times base \\times height + length \\times breadth{/tex}{tex}S = \\frac{1}{2} \\times DB \\times BC + OA \\times AB{/tex}{tex}S = \\frac{1}{2} \\times t \\times (v - u) + t \\times u{/tex}\xa0........(i)Now, v - u = at\xa0{tex}\\frac{{v - u}}{a} = t{/tex}put the value of \'t\' in equation (i){tex}S = \\frac{1}{2} \\times (v - u)\\frac{{(v - u)}}{a} + u \\times \\left( {\\frac{{(v - u)}}{a}} \\right){/tex}{tex}S = \\frac{{{{(v - u)}^2}2u(v - u)}}{{2a}}{/tex}{tex}S = \\frac{{{v^2} + {u^2} - 2uv + 2uv - 2{u^2}}}{{2a}}{/tex}{tex}S = \\frac{{{v^2} - {u^2}}}{{2a}}{/tex}{tex}2as = {v^2} - {u^2}{/tex} | |
| 244. |
d/dt(t3-t2tt) |
| Answer» | |
| 245. |
Describe a method to measure the height of an inaccessible object like a mountain |
| Answer» Parallax method | |
| 246. |
How time is vector |
| Answer» Bcz it has both magnitude and directions<br>What is physics | |
| 247. |
Express au in terms of ly and parsec |
| Answer» | |
| 248. |
the SI value of gravitational constant convert into CGS system |
| Answer» F= Gm¹m²/r² G= Frl/m¹m²= MLT–²L–²/M²D. F of G= M–¹L³T–² In CGS system - M–¹L³T–² | |
| 249. |
What is pseudo force and what is frame? |
| Answer» | |
| 250. |
What is the major difference between mass nd weight? |
| Answer» \tMassWeightMass is simply the measure of the amount of matter in a body.Weight is the measure of the amount of force acting on a mass due to acceleration due to gravity.Mass is denoted by “M”.Weight is denoted by “W”.Mass = volume × densityWeight = mass ×acceleration due to gravityMass is a base quantity.Weight is a derived quantity.Mass only has magnitude and so, it a scalar quantity.Weight has both magnitude and direction (towards the center of gravity) and so, it is a vector quantity.The SI unit of mass is Kilogram (Kg).The SI unit of weight is Newton (N).Mass does not depend upon gravity and is constant everywhere.Weight is dependent on the gravity and so, it varies from place to place.Mass can never be zero.Weight can be zero where there is no gravity (like space).Mass can be easily measured using any ordinary balance like beam balance, lever balance, pan balance, etc.Weight can be measured by a spring balance or by using its formula.\t | |