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.
| 1101. |
Distance travelled in n^th second byan object. S=u+a(2n-1)/2.....Is this dimensionally correct??? |
| Answer» No this is not dimensionally correct there are many examples which is exist but dimension wise these are incorrect and this is one of them | |
| 1102. |
Difference between velocity and average velocity |
| Answer» Velocity is exact value but average velocity is the mean of velocity traveltravelled<br>Velocity usually refers to calculating it instanteneously.If we say body A has a velocity v then it means it is at the moment of measuring.Average velocity is a term we use for the overall trip.It is defined as: total displacement / time takenclearly we are no longer concerned with any particular instant.<br>Actually velocity means instantaneous velocity i-e;velocity at an instant but average velocity means mean value of velocity | |
| 1103. |
Lamis theorem |
| Answer» Lami\'s theorem states that if three forces acting at a point are in equilibrium, each force is proportional to the sine of the angle between the other two forces. | |
| 1104. |
Centre of mass.explain |
| Answer» The place where mass of the body is Concentrated<br>A point where the mass of the body is supposed to act<br>Center of mass is a supposed position where mass of whole system is to be supposed which can lie in or out the system.<br>It is point where (assume) mass of whole body lies . | |
| 1105. |
Oscillation is not a wave it is a motion true or false |
| Answer» True<br>True<br>True<br>false<br>False<br>True | |
| 1106. |
What is significante of pascales law...??? |
| Answer» Hydraulic lift, brakes, press are based on pascal\'s law | |
| 1107. |
Two object one is heavier have equal momentum , which will have the greater kinetic energy? |
| Answer» Lighter body will have more k.e as instead of having less mass velocity of lighter body is more than heavier body<br>Lighter<br>Lighter body has more velocity(v)than heavier body so, the value of kE= 1/2mv^2 become greater for it.<br>Lighter body has more kinetics energy. | |
| 1108. |
What is the use of refraction in prism |
| Answer» To split white light into its constituent light | |
| 1109. |
SI unit of stress and strain |
| Answer» Newton per meter square =stressStrain =no units and dimensions<br>stress:ratio of load applied to the area of the specimenunits of stress is N/mm squareStrain:ratio of change in dimensions to the original dimensions of the specimenStrain has no units | |
| 1110. |
Physics ncert question 9 .18 and 9.19 please explain |
| Answer» | |
| 1111. |
Pascals law proof |
| Answer» | |
| 1112. |
Give the order of precision of an atomic clock or dimension of g |
| Answer» | |
| 1113. |
Mention any three characterstics of simple harmonic motion |
| Answer» These are Basic Conditions and characteristics for a body to exhibit SHM1.A restoring force must act on the body.2.Body must have acceleration in a direction opposite to the displacement and the acceleration must be directly proportional to displacement.3.The system must have inertia (mass).4.SHM is a type of oscillatory motion.5.It is a particular case of preodic motion. | |
| 1114. |
What will be the pressure on the swimmer 10m below the surface of lake? |
| Answer» 1multiply 10 multiply 10 plus 1 multiply1000 | |
| 1115. |
Will 1 kg weight is more at pole or equator |
| Answer» Pole because of the value of g is increase at pole than equator<br>Pole because valie of g increases as we go from equator to pole. | |
| 1116. |
What are the importhan topic in thermodynamics |
| Answer» Chapter 12 – ThermodynamicsImportant Topics:1. Zeroth Law of Thermodynamics2. First Law of Thermodynamics3. Heat Engines4. Second Law of Thermodynamics5. Carnot Engine | |
| 1117. |
How can you determine the temperature of a star by Wein\'s displacement law? |
| Answer» | |
| 1118. |
What do you understand by oscillation |
| Answer» Oscillation is the repetitive variation, typically in time, of some measure about a central value or between two or more different states. The term vibration is precisely used to describe mechanical oscillation. Familiar examples of oscillation include a swinging pendulum and alternating current...........????? | |
| 1119. |
Explain dopplers effect |
| Answer» According to Doppler effect whenever there is a relative motion between a source of sound and the listener the frequency of sound received by the listener is different from the actual frequency of sound emitted by the source.<br>\tDoppler Effect is the phenomenon of motion-related frequency change.\tConsider if a truck is coming from very far off location as it approaches near our house, the sound increases and when it passes our house the sound will be maximum. And when it goes away from our house sound decreases.\tThis effect is known as Doppler Effect.\tA person who is observing is known as Observer and object from where the sound wave is getting generated it is known as Source.\tWhen the observer and source come nearer to each other as a result waves get compressed. Therefore wavelength decreases and frequency increases.<br>Effect caused by sudden change in pitch | |
| 1120. |
Why stars starts rotating fast when their life span is going to end. |
| Answer» | |
| 1121. |
Why work done on the system is negative in physics while it is positive in chemistry? |
| Answer» in physics we want to make the system work for us but when we have to work on the system it is taken negative and in chemistry we want to work on the system so it is taken as positive<br>It is not compressio it is expansion<br>No , in chemistry also work done is negative. In thermo-d if we find work done when gas is compressed it will comes out to be negative | |
| 1122. |
Applications of first law of thermodynamics physics |
| Answer» It uses energy conservation and idea of internal energy,heat transfer and work done Mainly applicable for heat engine | |
| 1123. |
What is triangle law of vector |
| Answer» It state that when 2 sides of a triangle are represented as 2 vectors in magnitude and directions taken in same order then the 3rd side represents the resultant vector<br>Any one knows it! | |
| 1124. |
Show that conservation of energy is satisfied in first law of thermodynamics. |
| Answer» | |
| 1125. |
Vvm state level?? |
| Answer» | |
| 1126. |
The temprature of the air molecules in increasd by 10% find the percentage change in speed ? |
| Answer» Pata nhi | |
| 1127. |
Why rainy clouds are of dark colour .Support it scientifically. |
| Answer» Because of their thickness, or height.That is, a cloud gets thicker and denser as it gathers more water droplets and ice crystals — the thicker it gets, the more light it scatters, resulting in less light penetrating all the way through it.The particles on the underside of the rain cloud don\'t have a lot of light to scatter to your eyes, so the base appears gray as you look on from the ground below.<br>because | |
| 1128. |
Find the horizontal range of torricelli\'s theorem |
| Answer» | |
| 1129. |
I want blueprint of class 11 physics for final exam and trips of study to achieve good marks |
| Answer» Search on Google | |
| 1130. |
Law of conservation of angular momentum |
| Answer» Law of conservation:When net external torque =0 then total angular momentum is conserved i-e; L=0 Angular momentum initial =Angular momentum final | |
| 1131. |
Calculate the rms speed of oxygen molecules at 1092k if the desity of oxygen at STP=1.424kgm |
| Answer» | |
| 1132. |
What do you mean by angle of contact |
| Answer» The angle between the tangent at the liquid surface at the point of contact and the solid surface inside the liquid is called the angle of contact for a given pair of solid and liquid. It is represented by θ | |
| 1133. |
During 19th century light was considered to be a stream of paticles called..?? |
| Answer» Photon<br>During 19th century light was considered to be a stream of particles called photon<br>photon | |
| 1134. |
What is visual angle?? |
| Answer» The visual angle is the angle a viewed object subtends at the eye, usually stated in degrees of arc | |
| 1135. |
What is error ❓ how many type of error are there. |
| Answer» The error in the measurement is equal to the difference between the true value and the measured value of the quantity.Error= true value - measured value<br>2 | |
| 1136. |
Variation of g?? |
| Answer» Variation of g with height is g h=g(1-2h/R)Variation of g with depth is g d =g(1-d/R) | |
| 1137. |
Stoke\'s law? |
| Answer» According to stokes law the backword viscous force acting on a small spherical body of radius r moving with uniform velocity v through fluid of viscosity eta n is given by.<br>according to stoke\'s law, when a sperical body moves through a fluid,it experiences a viscous force.An expression for the viscous for force experienced by the spherical object was derived by stokes..therefore the expression is called stoke\'s law...where F=6^nrv...^=pi nd n=coefficient of viscosity<br>The magnitude of viscous force developed when a body is travelling through the viscous medium is said to depend on coefficient of viscosity, radius of the body and its terminal velocity given by F = 6 π a η v This equation is called Stokes\' law. | |
| 1138. |
derive the kinematics equation of motion of circular motion?? |
| Answer» | |
| 1139. |
Give me the list of all topic who are not in syllabus |
| Answer» | |
| 1140. |
Is maxwell\'s speed distribution is in syllabus |
| Answer» Yes it is | |
| 1141. |
What is parallax method????I am new…………plzz.help me with this qn. |
| Answer» | |
| 1142. |
How will you find magnitude and direction of vector if it\'s components are given (2d and 3d) |
| Answer» Thanku akanksha for the answer<br>Ax= x component of AAy = ycomponent of AAz = z component of ATherefore A= ( ax^2+ay^2+az^2)^1/2It is for 3dFor 2d only take x and y component Direction:Tan A = ax/ay<br>It\'s imp please answer | |
| 1143. |
What is :- 1) free vector 2) sliding vector 3) bound vector |
| Answer» Sliding vector is a vector having specified magnitude and lying on a given line.....?<br>A vector with fixed initial and terminal point is called a bound vector.<br>Free vector is a vector of which only the magnitude and direction are specified, not the position or line of action...<br>Please answer my question<br>Samaj me aagya<br>Please explain in detail ....????? | |
| 1144. |
Mention reason why do a concrited floor prepared in section |
| Answer» | |
| 1145. |
What is the work done of cyclic process |
| Answer» Work done in engine is a example of cyclic process<br>Work done in engine is also a example of circular motion and there is work done<br>I think here some kind of work is done And w=nR (ti-tf)Where N= no of molesR= gas constant Ti -tf= change in temperature<br>It must be equal to 0 as change in volume=0 | |
| 1146. |
Deduce the lens formula for concave lens |
| Answer» | |
| 1147. |
What is the difference between moment of inertia and law of inertia? |
| Answer» Moment of inertia is used in rotational motion just like mass is used in translational motion whereas law of inertia is tendency of a body to resist change in motion<br>In a easy way we can say that Moment of inertia is the rotational analogues of mass whereas law of inertia is a common name of Newton\'s 1st law.... | |
| 1148. |
What is bornoulli theorem |
| Answer» P + pgh + 1/2PV^2= constant......(Here P= row (density)<br>Nice answer Lavanya<br>The total energy of an incompressible, non viscous fluid in steady flow through a pipeline remains constant throughout, provides there t is no source or sink along the length of the pipe. | |
| 1149. |
How can i get notes of whole book ??? |
| Answer» Thnx to all if u<br>Best thing is ask ur teacher or refer this app notes. In any of the guide the explanation is quite big and u cant complete even half of the portion . 1 ch it takes maximum 5 days. In physics there are so many chapters.<br>U can get the notes in this app also<br>supporting material which may be provided by your school..<br>from were | |
| 1150. |
Theorem of parallel axise & theorem of perpendicular axise |
| Answer» Theorem of perpendicular axes-The moment of inertia of planer body about an axes perpendicular to the plane is equal to the sum of the moments of inertia(m.i) about two perpendicular axes concurrent with perpendicular axes and line in the plane of the body.(Izz\'=Ixx\'+ Iyy\') about Z-axes.and now,Theorem of parallel axes -The m.i of a body about any axes is equal to the sum of the m.i of body about a parallel axis passing through it centre of mass and the product of its mass and square of the distance between two parallel axes.(Ic+mass of body*square of distance b/w axes).<br>=>Theorem of Perpendicular AxisThe moment of inertia of planar body about an axis perpendicular to its plane is equal to the sum of its moments of inertia about two perpendicular axes concurrent with perpendicular axis and lying in the plane of the body.Iz=Ix+Iy=>theorem of parallel axis The moment of inertia of a body about any axis is equal to the sum of the moments of inertia of the body about a parallel axis passing through its centre of mass and the product of its mass and the square of distance between the two parallel axes.I=Ig+Md^2<br>Parallel axes theorem : The moment of inertia of a rigid body about any axis is equal to the sum of its moment of inertia about a parallel axis through its centre of mass and the product of mass of the body and the square of distance between the two axes.Perpendicular axes theorem : Moment of interia of a rigid plane lamina about an axis perpendicular to its plane is equal to the sum of its moment of inertia about any two mutually perpendicular axes in iys plane and meeting in the point where the perpendicular axis cuts the lamina Hope this will help u ...... | |