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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.
| 2951. |
convert the volume of gravitational constant from SI unit To CGS system |
| Answer» | |
| 2952. |
The dimension of X in tje relationship p=a-x where p is power. |
| Answer» | |
| 2953. |
What is theory of singularity |
| Answer» A gravitational singularity, spacetime singularity, or simply singularity is a location in spacetime where the gravitational field of a celestial body is predicted to become infinite by general relativity in a way that does not depend on the coordinate system. | |
| 2954. |
What is hedron collider |
| Answer» The Large Hadron Collider (LHC) is by far the most powerful particle accelerator built to date. The LHC is based at the European particle physics laboratory CERN, near Geneva in Switzerland. CERN is the world\'s largest laboratory and is dedicated to the pursuit of fundamental science. | |
| 2955. |
Frame of reference ..... ? |
| Answer» Gud mrng ?<br>Gm bhai<br>Welcome Royal Thakur...<br>In physics, a frame of reference consists of an abstract coordinate system and the set of physical reference points that uniquely fix the coordinate system and standardize measurements within that frame. For n dimensions, n + 1 reference points are sufficient to fully define a reference frame. | |
| 2956. |
Explain Linear expansion and derive Co-efficient of Liner expansion? |
| Answer» d<br>Linear Expansion means expansion in length due to increase in temperature. Linear expansion means fractional change in length i.e. how the length is changing with respect to original length.As we can seefrom above images the length has been increased froml to l+Δl. Coefficient of Linear Expansion is a parameter which tells us how the size of the object changes with change in temperature. It is defined as degree of linear expansion divided by the change in temperature.\tIf the solid is in the form of long rod, then for small change in temperature, ΔT, the fractional change in length, Δl/l, is directly proportional to ΔT.Mathematically can be written as:-Where αl= the coefficient of linear expansionIt is denoted by αl\tIt is characteristic of the material of the rod.It varies for different substance. | |
| 2957. |
Prove that f=mv2/r |
| Answer» \xa0Let us consider a particle travel with constant speed from A to B in a circular path of radius r in a short time Δtmaking an angular displacement Δθ as shown in figure.\xa0distance S travelled is the arc length AB and it is given by, S = v×Δt ..................(1)\xa0Arc distance S also written geometrically as, S = r×Δθ ...........................(2)\xa0from (1) and (2), we write , Δθ/Δt = v/r ...............(3)\xa0Eqn.(3) is rate of angular displacement or angular velocity.\xa0For small angular displacement made in short time Δt, we can write = dθ/dt = v/r ......................(4)\xa0In right side figure, velocity vectors at A and B are drawn by merging their initial points.The angle between these vectors also Δθ.\xa0from the right side figure, we write, sin (Δθ/2) = (Δv/2) / v or Δv/2 = v sin(Δθ/2) .................(5)\xa0For small angle Δθ, eqn.(5) is written as, Δv/2 = v Δθ/2 or Δv/Δθ = v or dv/dθ = v .....................(6)\xa0using eqn.(4) and eqn(6), acceleration directed towards centre, dv/dt = ( dv/dθ ) (dθ/dt) = v×(v/r) = ( v2\xa0/ r )\xa0If m is mass, then force F = mass×acceleration = m×(v2\xa0/ r )\xa0 | |
| 2958. |
The number of significant digits in 0.0006 032 is |
| Answer» It has 4 significant digits...<br>7 | |
| 2959. |
Why are length, mass and time chosen as fundamental qualities in mechanics?? |
| Answer» Gud Mrng<br>Gud Mrng<br>Normally each physical quantity requires a unit or standard for its specification, so it appears that there must be as many units as there are physical quantities. However, it is not so. It has been found that if in mechanics we choose arbitrarily units of any three physical quantities we can express the units of all other physical quantities in mechanics in terms of these. So, length, mass and time are chosen as base quantities in mechanics because(i) Length, mass and time cannot be derived from one another, that is these quantities are independent.(ii) All other quantities in mechanics can be expressed in terms of length, mass and time.<br>Because it doesn\'t depend on other physical quantities | |
| 2960. |
Will five litres of benzene weigh more in summer Or winter? Comment. |
| Answer» Hii Good morning...<br>Gud mrng!! ?<br>Byee good night<br>Gm | |
| 2961. |
Define gravity |
| Answer» the force that attracts a body towards the centre of the earth, or towards any other physical body having mass.<br>Gravity is a force that attracts a body towards the centre of the earth, or towards any other physical body having mass.History of Gravity\tIn 1687,\xa0Sir Isaac Newton\xa0first discovered gravity. While sitting under an apple tree, he noticed an apple falling down. Then he tried to figure out why the apple instead of going up or left or right, came down. In this situation, there was clearly an unknown force at play, that force is what Newton called gravity and his theory is called Newton’s law of Universal Gravitation.\tLater in the early 20th century,\xa0Albert Einstein\xa0developed a whole new idea about gravity. According to him, gravity is the warping of space and time. | |
| 2962. |
Derive an equation first, second and third of a uniformly accelerated motion by calculus method |
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| 2963. |
What is suspension solution ????????????? |
| Answer» OK✌<br>what about my nature❔??<br>109?✌ | |
| 2964. |
Who win (1) Mi(2) Punjab???? |
| Answer» Punjab ??<br>Punjab<br>No MI will win ????<br>Punjab ?????????????????????? | |
| 2965. |
Human heart is a inbuilt clock. Comment. |
| Answer» Ok broo... Gud Mrng!! ?<br>Wow.... amazing sis....chal raha hai<br>Koi btaaa skta hai.... Ye chal rhi hai ki nhii??? ?<br><html> <body> <iframe width="560" height="315" src="https://www.youtube.com/embed/LjuGnMBfmH8" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe></body> </html> | |
| 2966. |
What is a physical standard |
| Answer» A quantitave estimation taken to analyze all of the\xa0requirements\xa0which must be fulfilled for any production process to take place. For instance, the\xa0requirements\xa0of the machine, the method of calculating the labor as well as the main method used to determine the\xa0standard\xa0costs are all known as the\xa0physical standards. | |
| 2967. |
Hame is kaliyug Mai Shanti kaise mil sakti hai ? |
| Answer» ????<br>shant rhane se ??<br>Ye physics ka question h?? ? | |
| 2968. |
What will be the stopping distance if the intial velocity is double? |
| Answer» If the initial velocity is doubled, Then the stopping distance become 4 times.From the third equation,{tex}v^2=u^2-2as{/tex}{tex}u^2= v^2+2as{/tex}From this equation distance (s) is directly proportional to u^2. | |
| 2969. |
What are the examples of perfect inelastic collision in daily life? |
| Answer» Real World Examples Of Inelastic Collision\tThe ball is dropped from a certain height and it is unable to rise to its original height.\tWhen soft mudball is thrown against the wall, will stick to the wall.\tThe accident of two vehicles\tA car hitting a tree. | |
| 2970. |
Why can speed of a particle not be negative ? |
| Answer» Because it is scaler quantity that can\'t be -ve<br>Speed depends on the distance travelled by an object n distance...Neither the distance travelled by an object can be zero nor it\'s time... Hence, speed of a particle also can\'t be zero.... | |
| 2971. |
Chapter 7 class 7.4 solution |
| Answer» | |
| 2972. |
DETERMINANT METHOD?? |
| Answer» Suggest me a novel plzz<br>Good ?<br>Fine and u<br>Gud mrng broo ?... How are uhh??<br>Gm sis | |
| 2973. |
Power ka dimensions formula |
| Answer» M1L2T-3<br>Thanks for giving answer<br>ML2T-3<br>[tex][ML{2}T{-}{3}][/tex]<br>Any one give me answer | |
| 2974. |
What is difference between A and A.U |
| Answer» Ao and A.U. both are the units of distances but 1Ao = 10-10m and 1A.U. = 1.496× 1011m.\xa0 | |
| 2975. |
Explain the fourth equation of motion ? |
| Answer» 1. v= u + at 2. s= ut + 1/2at^2 3. s=1/2t(v + u) 4. v^2= u^2 +2as these are the four equations of motion<br>1. v= u + at2. s= ut + 1/2at^23. s=1/2t(v + u)4. v^2= u^2 +2asthese are the four equations of motion<br>3equ hoti ha fourth kab sa aa gayi<br>Mene to abhi tak 3 hi padha h?? | |
| 2976. |
How do you multiply icap jcap and kcap if angle theta is not given? |
| Answer» All have 90° angle in between them | |
| 2977. |
Drawback of dimensions?? |
| Answer» Can\'t find the value of proportionality constant... Can\'t be applied in expression involving Trignometeic ratios n exponential terms.. Can\'t be applied in expression involving two or more terms separated by (+) Or (-). Can\'t be applied in expression involving proportionality constant which has dimension... | |
| 2978. |
What is FPS system |
| Answer» The foot–pound–second system or FPS system is a system of units built on three fundamental units: the foot for length, the pound for either mass or force, and the second for time<br>Thanks<br>A n s w e r :F P S System In this system, the unit of length is foot, the unit of mass is pound and the unit of time is second.<br>second as the f.u of length*****<br>it is british system based on foot, pound, mass and time | |
| 2979. |
hello?vgm my dear teachers nd friends |
| Answer» vgm u too<br>Hii<br>hlo<br>Hi @sona | |
| 2980. |
What is full from of S.I |
| Answer» The International System of Units<br>@gaurav Seth u r wrong , <mark> the full form of SI Unit is <i>" Systeme International d\'unités" </i> it\'s french In English it is "International system of units" the short form is taken from the french name<br>What is FPS system<br>standard international system<br>S.I system (standard international system).\xa0In this system the units of mass, length and time are same, as that of M.K.S\xa0system.\xa0<article id="post-1294477">The full form of S.I is standard international system, it is an international system of units for the measurements. SI is a measuring system that is dependent on 7 base units:Length in metreMass in kilogramTime in secondElectric current in ampereTemperature in kelvinAmount of substance in moleLuminous intensity in candela.</article> | |
| 2981. |
Lagna kya hai aapka way of talking badal gya hai bhot |
| Answer» Arre lekin hua kya jiski waje se update hua? | |
| 2982. |
Haan insta delete krdo uss jaisi social media apps ne sabhi ko bigada haj |
| Answer» miss aap itna badal kese gyi vese<br>hnn baki mai to bs advise hi krrq hu<br>Oooo ? | |
| 2983. |
Mai isme jyada nhi aa paunga ... mera Facebook id- Ritesh Gupta |
| Answer» | |
| 2984. |
Hi guys...my Facebook id - Ritesh Gupta |
| Answer» hlo<br>Mera hi photo h with white and blue t shirt | |
| 2985. |
What is physics... ¿¿...?? |
| Answer» Physics is the natural science that studies matter, its motion and behavior through space and time, and the related entities of energy and force. Physics is one of the most fundamental scientific disciplines, and its main goal is to understand how the universe behaves. | |
| 2986. |
ह ello |
| Answer» o??<br>ll<br>e<br>h<br>Hii | |
| 2987. |
What is sine law?? ? |
| Answer» And happy daughter\'s day aadu<br>No problem..<br>Dhanyavaad ?<br>Sine law states that in any triangle , :$$\\dfrac{sinA}{a}=\\dfrac{sinB}{b} = \\dfrac{sinC}{c}$$<br>The Law of Sines is the relationship between the sides and angles of non-right (oblique) triangles . Simply, it states that the ratio of the length of a side of a triangle to the sine of the angle opposite that side is the same for all sides and angles in a given triangle.<div class="mod" data-md="61" style="clear:none"><div aria-level="3" class="LGOjhe" data-attrid="wa:/description" data-hveid="CBIQBQ" role="heading">The law of sines can be used to compute the remaining sides of a triangle when two angles and a side are known—a technique known as triangulation. It can also be used when two sides and one of the non-enclosed angles are known.</div></div><div class="g"><div class="rc" data-hveid="CAUQAA" data-ved="2ahUKEwjP__Lby4jsAhXwxzgGHbqEB6QQFSgAMAR6BAgFEAA"><div class="r">\xa0</div></div></div> | |
| 2988. |
Gud Mrng Every 1!! ?... What is cosine law?? |
| Answer» Hello ?.... Achhi hai diku... | |
| 2989. |
A physical quantity x is given by- x=A^4B^1/3÷CD^3/2 ,Find the fractional error in x |
| Answer» | |
| 2990. |
?? ???? ? ?????? ? ⠀????\u2063???????? |
| Answer» $$\\vec{A}$$<br>██░▀██████████████▀░██ █▌▒▒░████████████░▒▒▐█ █░▒▒▒░██████████░▒▒▒░█ ▌░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒░▐ ░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒░███▀▀▀██▄▒▒▒▒▒▒▒▄██▀▀▀████░░░▐█░▀█▒▒▒▒▒█▀░█▌░░░█▐▌░░░▐▄▌░▐▌▒▒▒▐▌░▐▄▌░░▐▌ █░░░▐█▌░░▌▒▒▒▐░░▐█▌░░█ ▒▀▄▄▄█▄▄▄▌░▄░▐▄▄▄█▄▄▀▒ ░░░░░░░░░░└┴┘░░░░░░░░░ ██▄▄░░░░░░░░░░░░░░▄▄██ ████████▒▒▒▒▒▒████████ █▀░░███▒▒░░▒░░▒▀██████ █▒░███▒▒╖░░╥░░╓▒▐█████ █▒░▀▀▀░░║░░║░░║░░█████ ██▄▄▄▄▀▀┴┴╚╧╧╝╧╧╝┴┴███ ██████████████████████<br>. ? |\\? / \\━━━━━┓ ＼＼ ┓┓┓┓┓┃┓┓┓┓┓┃ ヽ?ノ┓┓┓┓┓┃ /\u3000┓┓┓┓┓┃ ノ) ┓┓┓┓┓┃<br>Ab sahi hai ?: ??⠀⠀⠀⠀⠀⠀⠀⠀???? ? ?????? ? ????\u2063???????? | |
| 2991. |
Abhi show ho raha ? |
| Answer» Ooo ?<br>Svg - smart version graphics ?<br>Hnn???<br>Ab ye bhi show honge???? :<svg width="600" height="600"> <g transform="translate(100,100)"> <text id="TextElement" x="0" y="0" style="font-family:Verdana;font-size:24; visibility:hidden"> It\'s SVG! <set attributeName="visibility" attributeType="CSS" to="visible" begin="1s" dur="5s" fill="freeze" /> <animateMotion path="M 0 0 L 100 100" begin="1s" dur="5s" fill="freeze" /> <animateTransform attributeName="transform" attributeType="XML" type="rotate" from="-30" to="0" begin="1s" dur="5s" fill="freeze" /> <animateTransform attributeName="transform" attributeType="XML" type="scale" from="1" to="3" additive="sum" begin="1s" dur="5s" fill="freeze" /> </text> </g> Sorry, your browser does not support inline SVG.</svg><svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"> <rect x="10" y="10" height="110" width="110" style="stroke:#ff0000; fill: #0000ff"> <animateTransform attributeName="transform" begin="0s" dur="20s" type="rotate" from="0 60 60" to="360 60 60" repeatCount="indefinite" /> </rect> </svg><br>Ye hui na baat? | |
| 2992. |
Aadu latest version use kro usme hi chalra hai shyd ? |
| Answer» Aur fir isko dekho :<svg width="50%" height="150px"><g id="R1" transform="translate(250 250)"> <ellipse rx="100" ry="0" opacity=".3"> <animateTransform attributeName="transform" type="rotate" dur="7s" from="0" to="360" repeatCount="indefinite" /> <animate attributeName="cx" dur="8s" values="-20; 220; -20" repeatCount="indefinite" /> <animate attributeName="ry" dur="3s" values="10; 60; 10" repeatCount="indefinite" /> </ellipse></g><use xlink:href="#R1" transform="rotate(72 390 150)" /><use xlink:href="#R1" transform="rotate(144 390 150)" /><use xlink:href="#R1" transform="rotate(216 390 150)" /><use xlink:href="#R1" transform="rotate(288 390 150)" /></svg><br>Haan playstore se update kro usme latest version aata hai na ?<br>Mtlb... Update kru kyaa??? | |
| 2993. |
Find the angle between two vectors P and Q.if resultant of two vector is given by R^2=P^2+Q^2 |
| Answer» 90degree<br>Yeah by pythagoras theorem?<br>90° | |
| 2994. |
What is limiting friction?? |
| Answer» Aadu kaha btau aapko ? mai btane ko ready hu lekin kesd btau wo batado bs?<br>han ??<br>Ye to krke dikhqo miss???<svg> <g> <circle cx="10" cy="10" r="10" fill="blue"></circle> <animateMotion path="M 0 0 V 130 H 280 Z" dur="4s" repeatCount="indefinite" /> </g> </svg><br>Nhi wo aapne kaha na nhi to kya coding sikhni hai ?<br>hello broo ?... Nothing... | |
| 2995. |
(41.2+-0.2)°C and (38.6+-0.3)°C. Calculate the right temperature with error |
| Answer» | |
| 2996. |
coding sikhre hai sb acche se ???? |
| Answer» Hlo aadu aapko kya hua ?<br>Nahi... ??<br>Aesa kya? | |
| 2997. |
Formula of vector subtraction..?? |
| Answer» Physics mai niche mne wk ques answer kiya hai acceleration se belocity aur displacement nikalne ka kya sahi kiya hai plz check doubt hora hai ab?<br>Arre bhai wahi to hai subtraction kya hota hai?? | |
| 2998. |
Formula of vector addition ...¿¿?? |
| Answer» Magnitude after vector addition :$$R = \\sqrt{A^2 + B^2 + 2AB cos\\theta}$$Direction :$$tan \\theta = \\dfrac{Acos \\theta}{B + A sin \\theta}$$<br>Good afternoon aadu and thakku????<br>Gud afternoon ?... R2 = A2 + B2 + 2AB×Cos theta... | |
| 2999. |
what is the magnitude of two collinear vectors inclined right angled to each other. |
| Answer» App kha per rehete ho<br>Hii<br>Hii | |
| 3000. |
What is Dimensional formula for Thermal Conductivity ?. |
| Answer» The\xa0dimension\xa0of\xa0thermal conductivity\xa0is M1L1T−3Θ−1, expressed in terms of the\xa0dimensions\xa0mass (M), length (L), time (T), and temperature (Θ). | |