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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.
| 11401. |
What is the formula of areal magnification |
| Answer» \xa0Linear Magnification = Height of the image / Height of the object = -v/uAreal Magnification =\xa0v2\xa0/ u2\xa0Other imp formulas:Snells law\xa0sin i / sin r = constant\xa0= Refractive index between two given mediumRefractive index of a medium,\xa0μ = c/v\xa0where c is the speed of light in vacuum and v is the speed in light in the mediumLens Formula\xa01/f = 1/v – 1/u\xa0where, f = focal length of the lens, u = distance of object, v = distance of image.Lens Maker’s formula\xa01/f=(μ – 1) (1/R1 – 1/R2)\xa0where, μ = refractive index of the material of the lens and R1 and R2 are radii of curvature of the lensTwo lenses are in contact with each other, then\xa0P = P1\xa0+ P2\xa0where P, P1, P2\xa0are the power of combination, power of lens 1 and power of lens 2 respectively.Two lenses are separated by a distance d, then\xa0P = P1\xa0+ P2\xa0–d P1\xa0P2 | |
| 11402. |
Elastic collision and its derivation? |
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Answer» The elastic collision formula comprises two parts, namely elastic collision formula for kinetic energy and elastic collision for momentum.\xa0However, Follow the Table Below to Understand What each Component in the Equation Signifies –\t |
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| 11403. |
What is the dimension of speed |
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Answer» {M^0L^1T^-1} M⁰L¹T-¹ L |
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| 11404. |
What is physical existence (gm guys)??? |
| Answer» Gm | |
| 11405. |
What do you mean by vector |
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Answer» Physical quality which have magnitude as well as direction. and it can follow law of vactor addition. Those physical quantities which require magnitude as well as direction for their complete representation and follows vector laws are called\xa0vectors.Vector can be divided into two types1. Polar VectorsThese are those vectors which have a starting point or a point of application as a displacement, force etc.2. Axial VectorsThese are those vectors which represent rotational effect and act along the axis of rotation in accordance with right hand screw rule as angular velocity, torque, angular momentum etc. |
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| 11406. |
If a unit vector is represented by 0.3 ICAP - 0.4 J cap + 3 k cap then the value of C is |
| Answer» Czhaai | |
| 11407. |
Anyone or their siblings having xam idea class 10 2020 edition ? |
| Answer» No bro | |
| 11408. |
Need of bhandara |
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Answer» Hmm pk bro is right Hiii tyagi Koi best youtuber batao sis....Kyunki hame kuch ata hi nahi?? aur haa agar sikh pana possible ho to hi batana ....warna bye bye coding Hmm muja v Oho bhai ka attitude??? |
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| 11409. |
Work in bhandara??? |
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Answer» So, what?? Maine puch tha na kaise ho padhai kaise chal rahi hai....phir tumhara class resume ho gaya ...to hamne socha disturb na kare.... Pk gaye Mujhe bhi nahi aata. Maine to aaj tk computer padha hi nahi |
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| 11410. |
What is meaning of tmmmmmmm????? |
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Answer» Lakin kaise kya search kare hame zero knowledge hame.....? Kyunki maine kabhi padho hi nahi....kya ab possible hai?? Jai google baba Mere bhi nahi khule but sune mai aaya hai ki 15 se khul jaye??? |
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| 11411. |
Name the factor which inertia depands ? |
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Answer» Is it also depend on mass? Density,shape ,size of an object Moment of inertia is defined as the quantity expressed by the body resisting angular acceleration which is the sum of the product of the mass of every particle with its square of a distance from the axis of rotation.Factors that affect the moment of inertiaThe moment of inertia depends on the following factors,\tThe density of the material\tShape and size of the body\tAxis of rotation (distribution of mass relative to the axis) |
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| 11412. |
Convert the unit of work from s.i system to c.g.s system. |
| Answer» g⋅cm2/s2 in c.g.s system | |
| 11413. |
What is the condition of pure rolling? |
| Answer» Condition of pure rolling: Pure rolling occurs when rolling is done without any resistance. Pure rolling is a case when the point of lowest contact of rolling body with ground remains at rest and body is deliberated to be rotating about this point of contact. | |
| 11414. |
Expess 1 parsec in the term of metre. |
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Answer» Hi Akash Kumar , me Abhinab from your school , we meet in math tuision . Parsec is an astronomical unit of measurement which is commonly used in galactic or extra galactic scales.It is defined as the distance of an astronomical object from the Sun which has a parallax of 1 arcsecond.\xa0For exampleThe distance between the Sun and the star Proxima Centauri is around 1.29 Parsecs.1 Parsec =\xa03.08567758 × 1016\xa0meters |
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| 11415. |
The angle b/w vectorA= i^+j^ and VectorB=i^-j^ is......... |
| Answer» 90degree | |
| 11416. |
Can the scalar project of the vectors be zero even when neither of them is a zero vector |
| Answer» Yes.When cos theta =0 that is theta = 90 degreeOr sin theta =0 that is theta =0 degree | |
| 11417. |
What is intensity?? |
| Answer» Luminous\xa0intensity, the quantity of visible\xa0light\xa0that is emitted in unit time per unit solid angle. The unit for the quantity of\xa0light\xa0flowing from a source in any one second (the luminous power, or luminous flux) is called the lumen.\xa0The\xa0intensity\xa0is defined as power per unit area, and power is defined as energy per unit time. Thus: I=PA=EΔt1A.\xa0Because when\xa0intensity of incident light\xa0increases, it means that number of photons increases in\xa0incident light. If number of\xa0incident\xa0photons increases, then number of emitted photo electrons also increases, consequently the photo electric current increases. | |
| 11418. |
Best you tube channel for physics ? |
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Answer» Physics lovers Pw physics wallah |
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| 11419. |
How we can start our speech?Means speech writing starting . |
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Answer» Respected principal, teacher, and my dear friend, I am (..... your name.....) stand in front of you , to tell you something about (...topic name...) (......... speech..........) Format for Speech Writing -\xa0In order to write a perfect speech, we must be well acquainted with the topic and must possess a wide range of vocabulary, a thorough knowledge of the subject, some research, and excellent organizational skills. Here are the ideal format and tips to help you write your perfect speech.A perfect speech must consist of:-\tHEADING- The heading should be catchy and in not more than 5-6 words. You can go as creative as you want with this one just make sure you do not devote too much time to it in the exam.\tOPENING LINE-\xa0This includes salutations, introduction, and the topic. Make sure you do not mention your personal details (name, school name, etc.).Example-\xa0Respected Principal, teachers, and my dear friends! Today, I (the name is given in the question) stand before you all to speak on the topic “(given in the question)”.OR you could start with a quote related to the topic and then go with the salutations and introduction.\t\xa0BODY- It is the main part of your writing piece.\tIt is always prescribed that you begin with a short introduction on the topic, it’s meant to be precise.\xa0\tThen you need to explain the current situation, the problems (if any), and whether after any corrective actions, betterment in the situation has been observed or not.\tIt may include advantages/ disadvantages depending upon the topic in question.\tNow here, it is important you follow a sequence. It is possible that you have too many points or very few points. When you have a lot of varied points, it is better you choose a few best ones and write a line on each. In case you have very few already, explain them in at least two lines each.\tYou have to strictly follow the prescribed word limit in a limited time frame so just do not go on writing and writing.\tMOST IMPORTANT- Always begin with your strongest point. You can accommodate the weaker ones in between and end with another strong point.\tFeel free to give your personal opinion in one or two lines.\tIt is very important that you do not deviate from the topic. There are chances you may get ideas linking from one to another that may deviate you from the main point. You have to refrain from doing so.\tSOLUTION/CONCLUDING PARAGRAPH- Now, it is to be remembered that wherever you elaborate a problem, you always have to mention the steps being taken to improvise the situation and suggest a few solutions as well.Now, it would be great if you could add a few quotes relating to motivating the people to take action.Here also, the rule of STRONG-WEAK-STRONG applies. |
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| 11420. |
Whose school is opening from 19th October? ? |
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Answer» ??? unlock 5.0 me abb to khul hi jyenge vse confirm hai....prr vishwas nii horha kya schme??? maybe mine? |
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| 11421. |
Equations of motion by calculas method |
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| 11422. |
What is rectilinear motion? |
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Answer» Motion in one direction is rectilinear motion. It is also known as linear motion. Motion along a straight line is known as linear motion or rectilinear motion. A motion is done in straight line An object is said to be in a rectilinear motion when two objects are moving in a straight line and are parallel to each other.\xa0Elevator movement is an example of rectilinear motionThere are three types of rectilinear motion, and they are uniform rectilinear motion, uniformly accelerated rectilinear motion and rectilinear movement with non-uniform acceleration |
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| 11423. |
Kyu bhai concentrate karo....school 12th se jana hai... |
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| 11424. |
Derive kinematic equations by calculus method |
| Answer» | |
| 11425. |
What is centripetal force???? |
| Answer» According to the centripetal force definition, it is defined as Centripetal force is the component of force acting on an object in curvilinear motion which is directed toward the axis of rotation or centre of curvature. | |
| 11426. |
Find the dimensions of the potential and then the capacitance. Given, E = Vit and Q= CV |
| Answer» ANSWERSince charge on a capacitor with capacitance\xa0C\xa0is given by\xa0q=CV,therefore,\xa0C=Vq\u200b.Hence,\xa0[C]=Vq\u200b=[ML2T−3A−1][AT]\u200b=[M−1L−2A2T4] | |
| 11427. |
Error analysis |
| Answer» | |
| 11428. |
How will you find work done by a variable force? What is the significance of f- x graph |
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Answer» Hi kavita The\xa0work done\xa0by a constant\xa0force\xa0of magnitude F on a point that moves a displacement d in the direction of the\xa0force\xa0is the product: W = Fd. Integration approach can be used both to calculate\xa0work done by a variable force\xa0and\xa0work done\xa0by a constant\xa0force.\xa0Aside from using the equation, another way to\xa0figure out the work\xa0being\xa0done\xa0is to use a\xa0force-distance\xa0graph. Since\xa0work\xa0is\xa0force\xa0multiplied by distance, that means that the area under the\xa0force-distance\xa0graph\xa0gives you the\xa0work done. If the\xa0force\xa0is constant, this means just\xa0finding\xa0the area of a rectangle. |
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| 11429. |
Gunjan Raghav..... |
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Answer» Offline hi ho jati ho Kya hua . Jo poochna h jaldi poochho . ???? Yes please , aap ko kya khana h jaldi bolo , mai baar baar reply nahi kar sakti, or mera name se likhne ki koi zarurut nahi h .Don\'t write my name .Aur ha mai toh tumhe janti bhi nahi hun or tum mujhse kuch poochne ke liye kaha rahe ho. |
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| 11430. |
Gunjan Raghav..... R u there...... |
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Answer» Didi For aap ko kya bolu Reply toh kar diya Karo Yrr jaldi No need to write my name again and again. Ha bol bhai .kya poochna h |
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| 11431. |
Universal Gravitational constant. |
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Answer» Matlab haana Iska kya matlab h ki kahan se start karu. Toh kha sa start karu Kya poochna h poocho ?? |
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| 11432. |
State torricelli\'s law for efflux speed of liquid and prove it. |
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Answer» Torricelli’s law\tTorricelli law states that the speed of flow of fluid from an orifice is equal to the speed that it would attain if falling freely for a distance equal to the height of the free surface of the liquid above the orifice.\tConsider any vessel which has an orifice (slit)filled with some fluid.\tThe fluid will start flowing through the slit and according to Torricelli law the speed with which the fluid will flow is equal to the speed with which a freely falling bodyattains such that the height from which the body falls is equal to the height of the slit from the free surface of the fluid.\tLet the distance between the free surface and the slit = h\tVelocity with which the fluid flows is equal to the velocity with which a freely falling body attains if it is falling from a height h.Derivation of the Law:-\tLet A1= area of the slit (it is very small), v1= Velocity with which fluid is flowing out.\tA2=Area of the free surface of the fluid,v2=velocity of the fluid at the free surface.\t\t\tFrom Equation of Continuity, Av=constant.Therefore A1v1\xa0= A2v2.\tFrom the figure, A2>>>A1, This implies v2< |
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| 11433. |
Har har Mahadev ??? |
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Answer» Who are you ? Ye mai bataungi kaha se start karna h Itna time lagta h ,? Toh kha sa start Karu? Ha bolo |
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| 11434. |
Does this website provide quizzes? |
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Answer» Ha bolo Gunjan Raghav suno OK... Kya poochna h ye batao. Jai baba ki?? G. Raghav |
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| 11435. |
5 Nm‐² stress is applied to a string and strain is 0.02. The young\'s moduls is |
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Answer» Hi manisha 250Nm-^2 |
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| 11436. |
What is modulus of elasticity? |
| Answer» Modulus of elasticity\xa0is the prime feature in the calculation of the deformation response of concrete when stress is applied. | |
| 11437. |
Happy Vijayadashami/ Dussehra. |
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Answer» U too aapko bhi You too |
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| 11438. |
Question uploaded nhi Ho rahe ??? |
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Answer» Aa gye......G.Raghav Har har mahadev ?? Har Har Mahadev ???? Har har Mahadev ??? Ohh ho gye |
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| 11439. |
Explain types of collision between the particles |
| Answer» There are two types of collision i.e. Elastic collision and Inelastic collision.Elastic collision :- The collision in which both the momentum and the kinetic energy of the system remains conserved are called elastic collision.Inelastic collision :- The collision in which only the momentum remain conserved but kinetic energy does not remain conserved are called Inelastic collision. | |
| 11440. |
Har har Mahadev..... ??? |
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Answer» Aur ab mujhse in manners mai really really really baat mat karne.Ye sab theek nahi h.Bahot galat h .Aaise baat karna gunah hai mere according. Jai mahakal Prachi Mood off nahi hoga agar age se tum normally behave karoge. Har har mahadev |
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| 11441. |
okk dear |
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Answer» Phadlo pass ho jao gye? ?? Kuch nhi y for what? Y |
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| 11442. |
O bhai tu faltu m ladai m la....???? |
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Answer» Chal nikal..... Fir bich m q bol raha ha tu Mujhe bhi pata hao bhes k aage bin bajane ka kya fayda Mujhe ladai ka koi shonk ni teri tara Legendary |
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| 11443. |
but there is reason behind that uhh will not understand g |
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Answer» #Legendary what u have 2 do.......jesa tu ladkiyo ko samajh raha hai na vese nahi hai vo okk n me also ladkiyo ka naam barbad nahi karri , I\'m not a gay over here like u to do that type of things...... What u have written that u understands everything right what do u understand tell mee...? himat hai to bol na #..... OK..... #Mamta bhosle go andstudy now kyu ladkiyo ko badnaam krri hai go now I understand everything u will not understand as being a boy so sorry Reason kya ha dear.... |
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| 11444. |
OK as ur wish..... |
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Answer» Stop gossips and go to study Toh Fir... right But yaha pa block bhi jaldi kar data ha yaa |
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| 11445. |
Hmm..... Ye baat ha kya.... |
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Answer» noo..... this app is okk 4 us Bolo toh raha hu Insta pa follow kar Lo mujha hmm Koi nhi....don\'t say sorry OK.... otherwise sorry if u don\'t like it |
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| 11446. |
Aye bada topper hatt???? |
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Answer» arre kuch nahi i just wanted to friendship with uhh soo that\'s y i said that.... this was only my moto? Aapko kya Karna ha Haryana sa belong thori karta ho aap toh.... anyways in haryana where do u live ? Villa ???? means aapka hut mera full villa |
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| 11447. |
we r topper of the class beta ? |
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Answer» nothing ? Otherwise what??? that\'s y I\'m respecting u g or otherwise..... Beta aap topper ha ya nahi ye mujha nhi Pta but m aap ka senior hu beta that\'s y I doing this |
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| 11448. |
Kya koi itna khule dil ka bhi nhi bacha ab ? Kaliyug mai aese din ? |
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Answer» ?? Kya help chahiye Nice joke bro |
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| 11449. |
Plzz anyone help me? |
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Answer» If u want help so go on Google website and ask your question Google will answer uu??? Tell me how can I help you Yes |
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| 11450. |
V^2-u^2=2as by calculas |
| Answer» We know that a= dv/ dt a= dv/ dt × ds/ ds a= vdv/ ds ads = vdv Integration both side with proper limits a(s- 0 ) = 1/2 ( v^ 2 - u^2 ) as = 1/2 (v^2- u^2)V^2-u^2 = 2as Hence proved | |