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.
| 2601. |
How to find magnitude of vector |
| Answer» As we know, the vector is an object which has both the magnitude as well as direction. To find the magnitude of a vector, we need to calculate the length of the vector. Quantities such as velocity, displacement, force, momentum, etc. are vector quantities. But speed, mass, distance, volume, temperature, etc. are scalar quantities. The scalar has the only magnitude, whereas the vectors have both magnitude and direction. | |
| 2602. |
What did Einstein said about twin paradox? |
| Answer» | |
| 2603. |
What is grandfather paradox? |
| Answer» The grandfather paradox is a paradox of time travel in which inconsistencies emerge through changing the past. The name comes from the paradox\'s description: a person travels to the past and kills their own grandfather before the conception of their father or mother, which prevents the time traveller\'s existence. | |
| 2604. |
What is r not |
| Answer» Haa 3 hi aa raha hai.... towards the left of 1 coulomb<br>Just usi qsn me dusra value maine mention kiya hua h dekho toh.. syd tumhare me bhut slow show kar rha h answer<br>Not initial ke liyea use karte hai....ya standard ke liyea....sayad initial radius with refrence to change in medium....<br>Ha syd qki vo MEDIUM se medium change hota h uska value toh may b ho skta h<br>Maine qsn galat hi diya tha test kar rhi thi..ki mujhse qsn bnte h ya nhi nai value change ki thi solly.. tum dusla wala value put kalo na | |
| 2605. |
Unit of permittivity of free space |
| Answer» Correct<br>Option... b ....coulomb square per Newton per metre sq.<br>Hm value correct hai ..<br>Option a) coulomb/newton-metre ... b) coulomb^2/newton-metre^2... c) newton-metre^2/coulomb d) coulomb^2 / (newton-metre)^2<br>Value ....it is 8.85×10^-12 farad/metre | |
| 2606. |
Unit of permitivitty |
| Answer» Tumhari I\'d active h ya nhi<br>Kya nahi sununga???<br>Tum sunoge nhi isiliye maine kaha k rhne do<br>I don\'t know k ye sahi h ya galat .. qsn kuch aur tha wait<br>Farad/metre and dimensional formula is M^-1 L^-3 A^2 T^4. | |
| 2607. |
Can someone please tell what are the additional subjects we can choose in PCM? |
| Answer» IT<br>IT | |
| 2608. |
Which referance book is good for class 11 science. I need all referance book for all subject |
| Answer» Pradeep is best for science And RD Sharma for maths<br>Best physics - HC verma, bio and chemistry - finger tips. Believe me.....<br>Physics- sl arora . Math - rd sharma and for rest you can only prefer Ncert it\'s more than enough | |
| 2609. |
Distinction |
| Answer» a difference or contrast between similar things or people. | |
| 2610. |
What happens to change in internal energy of a gas during isothermal expansion |
| Answer» \xa0isothermal expansion temperature remains constant therefore change in internal energy is also constant. | |
| 2611. |
What is the magnitude and direction of the electric field at the centre of square.+q -2q +2q -q? |
| Answer» Please ask question with complete information. | |
| 2612. |
CBSE 10 exams cancelled and 12 exams postponed. |
| Answer» So ....good news☺️☺️ | |
| 2613. |
Prove that angle of repose is equal to angle of friction |
| Answer» | |
| 2614. |
Prove that projectile motion is parabola? |
| Answer» Path of a projectilelet OX be a horizontal line on the ground and OY be a verticle line O is the origin for X and Y axis Consider that the projectile is fired with velocity u and making angle θ with the horizontal form the point ′O′ on the groundThe velocity of projection of the projectile can be resolved into the following two components\xa0(i) ux\xa0= ucosθ, alongOX(ii) uy\xa0= usinθ, alongOY\xa0As the projectile moves it covers distance along the horizontal due to the horizontal component\xa0ucosθ\xa0of the velocity of projection and along verticle due to the vertical component\xa0usinθ\xa0. let that any time t , the projectile reaches the point P , So that its distance along the\xa0X\xa0and\xa0Y\xa0axis are given by x and y respetively.Motion along horizontal direction : it we neglect friction due to air, then horizontal component of the velocity i.e. ucosθ will remain constant. thusInitial velocity along the horizontal ux\xa0= ucosθAcceleration along the horizontal ax = 0The position of the projectile along X-axis at any time t is given byx = uxt + {tex}\\frac 12{/tex}axt2Putting\xa0ux \u200b= ucosθ\xa0and\xa0ax = 0\xa0we have\xa0x = (u cos θ)t + {tex}\\frac 12{/tex}\u200b(o)t2or\xa0x = (u cos θ)tor\xa0t = {tex}\\frac x{u \\cos \\theta}{/tex}\xa0\u200b....... (i)Motion along verticle direction:\xa0The velocity of the projectile along the verticle goes on decreasing due to effect of gravity initial velocity along vertical\xa0uy\xa0= usinθAcceleration along vertical\xa0ay=−gThe position of the projectile along T-axis at any time t is given by\xa0y = uyt + {tex}\\frac 12{/tex}ayt2Putting\xa0uy\u200b=usinθ\xa0and\xa0ay\u200b=−g\xa0we have\xa0y = (u sin θ)t +\xa0{tex}\\frac 12{/tex}(−g)t2or\xa0y = (u sin θ)t −\xa0{tex}\\frac 12{/tex}gt2.....(2)Putting the value of t from equation (1) in equation (2) we get\xa0y = (u sin θ) {tex}\\frac x{u \\cos \\theta}{/tex} − {tex}\\frac 12{/tex}\xa0\u200bg({tex}\\frac x{u \\cos \\theta}{/tex})2or\xa0y = x tan θ − ({tex}\\frac g{2\\ u^2\\ cos^2\\theta}{/tex})x2...(3)This is an equation of a parabola . hence the path of projectile projected at some angle with the horizontal direction is a parabola. | |
| 2615. |
State and prove Laws of conservation of angular momentum |
| Answer» Torque=dL/dt =0 Hence, L= constant<br>The total external energy torque acting on a rigid body is 0 , the total angular momentum is conserved | |
| 2616. |
Huaa ki nahi mamta |
| Answer» Mera name Mamta hai telegram pe......do one thing aap mujhe apka username batao<br>App ki kya he profile pic or full name telegrame me<br>what\'s ur profile pic dude | |
| 2617. |
App ko me kis name se serch kru |
| Answer» Sun he or ram ram ji likha he<br>apka profile pic kya<br>okk no problem aap karo download<br>Ap meko msg kro Saransh patil<br>Mamta | |
| 2618. |
Ap kon si class me ho mamta |
| Answer» 7774851593 whatsapp<br>telegram pe baat ho sakti hai<br>Mtlb ab bat nahi hogi apni<br>Aacha to thik he<br>Ye hamari chats baki guys ko disturb karegi dear | |
| 2619. |
If xˆ ˆ and yare unit vectors at an angle \uf071, find x yˆ ˆ\uf02b |
| Answer» | |
| 2620. |
It is because...just shall we be friends |
| Answer» App kon si class me ho<br>kismai<br>Wese ap ka kon sa subject ye<br>Thanks<br>Ohk | |
| 2621. |
obtain an expression for centre of mass of two body system by my cbse guid3 |
| Answer» Apani gaand doga to batao ya mera mu ma loga mujhe gand dedo ma bata duunga sara answer maja bhi aa jayega apako ?? | |
| 2622. |
What is the relation between impulse and momentum |
| Answer» Me mera number du app btao ge kya<br>haa but yaha bohot complicated lagega aapko read karte time<br>Are esa koe mathematical proof de skte ho kya app<br>The impulse experienced by the object equals the change in momentum of the object. | |
| 2623. |
How is angular momentum related to linear momentum? |
| Answer» Angular momentum of an object with linear momentum is proportional to mass, linear velocity, and perpendicular radius from an axis to the line of the object\'s motion. | |
| 2624. |
Projectile unotion |
| Answer» The motion of a body thrown with some initial horizontal velocity and then allowed to move in 2D under the action of gravity. | |
| 2625. |
Derive the equation for time period of simple pendulum |
| Answer» 10 me 94% ke liye ?...11 ke final exams hogye aapke ...<br>Mai badhiyaa .....congrats ..?<br>Hlww..mein theek hun. Aap kese ho?<br>Kaise ho ..?<br>Hii diku sis ...itne din baad ? | |
| 2626. |
What is uniformly accelerated motion? |
| Answer» When the body accelerate in same amount with respect to time | |
| 2627. |
All derivations of work,power and energy |
| Answer» Bhai google hi kar le | |
| 2628. |
State the importance of Newton\'s third law |
| Answer» I believed in you before and still do........i just tried to avoid conflict because i know Because people like him can never improve, then what is the benefit of wasting your time on it?<br>I understand who are you #verified profile ...<br>Tum nhi smjhoge #unofficial<br>Arey bhai Kehna kya chahte ho<br>Are you ****king****...? | |
| 2629. |
Zeroth law of thermodynamics .......? |
| Answer» I know he is cheap but what are you doing ...? ?<br>Who are you ...?<br>#Manav is dhruv only see that how cheap he is<br>I before also said and nobody believed me you also now believe or ??<br>Royal dekho dhruv ka drama show ? | |
| 2630. |
write the relation between magnetic permeability and electric permittivity |
| Answer» | |
| 2631. |
State Dalton law of ideal gas |
| Answer» Dalton’s Law, or the Law of Partial Pressures,\xa0states that the total pressure exerted by a mixture of gases is equal to the sum of the partial pressures of the gases in the mixture. | |
| 2632. |
Define free, forced and resonant oscillations with examples |
| Answer» Free Oscillation -\xa0The free oscillation possesses constant amplitude and period without any external force to set the oscillation. Ideally, free oscillation does not undergo damping. But in all-natural systems damping is observed unless and until any constant external force is supplied to overcome damping. In such a system, the amplitude, frequency and energy all remain constant.Damped Oscillation -\xa0The damping is a resistance offered to the oscillation. The oscillation that fades with time is called damped oscillation. Due to damping, the amplitude of oscillation reduces with time. Reduction in amplitude is a result of energy loss from the system in overcoming external forces like friction or air resistance and other resistive forces. Thus, with the decrease in amplitude, the energy of the system also keeps decreasing. There are two types of damping\tNatural Damping\tArtificial DampingForced Oscillation -\xa0When a body oscillates by being influenced by an external periodic force, it is called forced oscillation. Here, the amplitude of oscillation, experiences damping but remains constant due to the external energy supplied to the system.For example, when you push someone on a swing, you have to keep periodically pushing them so that the swing doesn’t reduce. | |
| 2633. |
Derive and experession for s.h.m |
| Answer» | |
| 2634. |
Why a drop of liquid under no external forces attains a spherical shape? |
| Answer» Because of surface tension | |
| 2635. |
Wave produced by a motor boat sailing in water is.................. |
| Answer» Longitudinal. | |
| 2636. |
why \'G\' is called universal Gravitational constant |
| Answer» as the law for Universal law of Gravitation,F is proportional to the M. m/d²to remove the proportionality G is placed which is termed the same.G=6.67* 10^-11 Nm2/kg2 | |
| 2637. |
Define uniform motion.? |
| Answer» This type of motion is defined as the motion of an object in which the object travels in a straight line and its velocity remains constant along that line as it covers equal distances in equal intervals of time, irrespective of the duration of the time. | |
| 2638. |
Skdow |
| Answer» | |
| 2639. |
Derive an expression for finding the velocity of an approaching aeroplane using radar wave |
| Answer» | |
| 2640. |
Prove that the elastic potential energy per unit volume is equal to |
| Answer» Please ask question with complete information. | |
| 2641. |
Can anyone tell me that how should i prepare for my cbse class 11 exams?? |
| Answer» | |
| 2642. |
Pull us easier than push.Why? |
| Answer» | |
| 2643. |
Anyone please answer my question. |
| Answer» I think it\'s answer is 6m/s^-2<br>A force of 5N gives a mass m1 an acceleration of 8ms-² and a mass m2 an acceleration of 24ms-².What acceleration would it give if both the masses are tied together?<br>? | |
| 2644. |
Derive stoke\'s laws and it\'s application |
| Answer» Backward force acting on a small sphere with radius r velocity v viscosity n is given by 6πnrv | |
| 2645. |
What is the centre mass of a cylinder |
| Answer» If the\xa0cylinder\xa0is of uniform density, then it\'s at the geometric\xa0center\xa0- at the\xa0center\xa0of the circle and halfway between the ends. Because of the x*i + y*j + z*k this gives you a vector. Divide that by the total\xa0mass\xa0and the result will be a vector designating the\xa0center\xa0of\xa0mass. | |
| 2646. |
Why pulling is easier than pushing |
| Answer» In case of pull or push the actual weight of the roller is same but in case of the push the sine component is in direction of the weight while in case of the pull it is in the opposite direction of the force, hence the friction force in case of push will be more\xa0than\xa0pull, so, pull will be\xa0easier than\xa0the push...... | |
| 2647. |
Which topics of class 11th physics and chemistry is continuing (important)for studying class 12th? |
| Answer» All the chapter s... | |
| 2648. |
Barnaulis theory |
| Answer» It is very important for school exam point of you !!! Bernoulli\'s theorem may be defined as the sum of pressure, kinetic, potential energy remain constant. OR The sum of total energy per unit mass remain constant. OR The sum of total energy per unit volume remain constant.HOPE YOU WILL UNDERSTAND THIS ANSWER... THANKS!!!<br>Total mechanical energy per unit volume remain constant<br>Bhai are you askingg for Bernoulli theorem in fluid dynamics or something else? | |
| 2649. |
Which portion is deleted in ch 15 waves? |
| Answer» Beats<br>fundamental mode and harmonics, Doppler effect. | |
| 2650. |
Define rocoil velocity |
| Answer» Velocity with which some object after getting pushed backwards with some force moves. For example, Velocity with which a gun moves backwards after experiencing a force from the bullet\'s burst. | |