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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.
| 2451. |
What is FPS system of measurement |
| Answer» Foot , pound, time<br>In thus system,unit if length is foot,the unit of mass is pound and the unit of time is second<br>Foot(length) Pound(mass) Second(time). This critria was followed by Britishers by which earlier we also used it after the independence of Indians from them as we were also habitual of their culture.<br>FPS system is the System of units and measurements which are of British origin. The three major units in this system are FEET for length (ft), POUNDS for mass (pd) and SECOND for time (sec). | |
| 2452. |
Subscribe me on YouTubehttps://youtube.com/channel/UCpoY_1xpubmLoxLsZOndskgPlz frnds |
| Answer» Unsubscribe kr dia becoz of u not liked my comment<br>Ho gya Like my comment | |
| 2453. |
The scalar product of two vector A and B is |
| Answer» The scalar product of a and b is: a · b = |a||b| cosθ We can remember this formula as: “The modulus of the first vector, multiplied by the modulus of the second vector, multiplied by the cosine of the angle between them | |
| 2454. |
Is acceleration due to gravity always negative? |
| Answer» No<br>No, it depends upon how we apply Sign conventions in the situation. If we take downwards as -ve and upwards as +ve, then g becomes -ve and when we take downwards as +ve and upwards as -ve, then g would be positive.<br>Yes it would be because acceleration due Gravity is always downwards in -ve y axis<br>Towards the center of the Earth, the gravity is defined to the be negative. At all points on the trajectory of a projectile, the gravitational acceleration points in the same direction, which is downwards toward the center of the Earth. So, the sign for the gravitational acceleration is always negative. | |
| 2455. |
Which is odd one ?(a) displacement (b) potential energy (c)torqe (d) momentum |
| Answer» Potential energy<br>C<br>Please tell the exact one!!<br>A<br>C | |
| 2456. |
check the correctness of relation v=sqrt2GM/R |
| Answer» LHS →v = [LT^-1].RHS → √GM/R = { [M^-1L^3T^-2] [M] / [L] }^1/2 = { [L^2T^-2] }^1/2 = [LT^-1]. Therefore, LHS = RHS. | |
| 2457. |
Scope of excitement of physics |
| Answer» | |
| 2458. |
A Satellite is at a height of400m Find Vo and total energy |
| Answer» Vo = √GM/R+h = √6.67 × 10^-11 × 6 × 10^24 / 6.4 × 10^6 + 400 = 40.02 × 10^13 / 6400 × 10^3 + 400 = 40.02 × 10^13 / 400 (16001) = 40.02 × 10^13 / 6400400 = 40.02 × 10^13 / 6.4004 × 10^6 = 6.25 × 10^7 m/s. // | |
| 2459. |
. A Satellite is at a height of foorem. Find Vo and total energy |
| Answer» | |
| 2460. |
Physics mcqs |
| Answer» Light year | |
| 2461. |
The sign of work done by a force |
| Answer» | |
| 2462. |
A man can do work of 600J in 2 min then power is |
| Answer» 5 waat<br>Work = 600j Time = 2 min = 2×60= 120 sec Power = work/time = 600/120 = 5 j/s = 5 watt<br>5watt | |
| 2463. |
Find the conversion factor between the SI and CGS unit of work using dimensional analysis |
| Answer» 1 joules = 10^7 ergs. | |
| 2464. |
Cell magic (changing light energy to electrical energy) project file |
| Answer» | |
| 2465. |
Notes of chapter 2,3,4 |
| Answer» Ask ur classmates | |
| 2466. |
What is the temperature of the steel copper junction in the steady state of the system |
| Answer» 46 | |
| 2467. |
Sir , what is projectile motion |
| Answer» A projectile motion is a motion in body is moving horizontally and vertically as well or simply it is a 2- dimensional motion<br>Eg. Neeraj chopra throw javelinKicked football<br>A projectile is a name given to a body which is thrown with the initial velocity and then allow to move under the action alone. | |
| 2468. |
Dimensional formulas |
| Answer» We can write Dimentional Formula of any unit using mass, length and time.<br>It is in the form of MLT( mass, length, time)<br>(M°d°T-1} | |
| 2469. |
100-100/100-100=? |
| Answer» Cannot be determined.<br>0<br>0<br>0<br>1 | |
| 2470. |
Show that lawn roller is easier to pull rather than push |
| Answer» When the lawn roller is pulled,\xa0the normal component decreases\xa0that means the cosine component of force decreases. ... This will increase the frictional force. Therefore we can say that it is easier to pull<br>While pulling, by weight we can pull,=netforce=weight-fsinTheta(vertically along x-axis).While pushing, by weight and also force is also applied on that to make it push,=net force=weight+Fsintheta<br>When the lawn roller is pulled, the normal component decreases that means the cosine component of force decreases. ... This will increase the frictional force. Therefore we can say that it is easier to pull the lawn roller than to push it because the normal component of force decreases when the lawn roller is pulled. | |
| 2471. |
How is a target fixed for shooting or firing from a gun from inside the moving plane |
| Answer» Given,u=0m/s, Vertical componenet of initial velocitys=4.9cm=0.049mg=9.8m/s 2 d=25mApplying 2nd equation of motion in vertical directions=ut+ 21\u200b gt 2 s=0×+ 21\u200b gt 2 s= 21\u200b gt 2 t= g2s\u200b \u200b = 9.82×0.049\u200b \u200b t=0.1secVelocity, v= td\u200b v= 0.125\u200b =250m/s | |
| 2472. |
What is a blackhole ? |
| Answer» A black hole is an area of such immense gravity that nothing—not even light—can escape from it. | |
| 2473. |
Is S. L Arora is perfect for preparation |
| Answer» | |
| 2474. |
NCERT class 11 physics practical |
| Answer» | |
| 2475. |
I want best notes of physics for NEET Can u all suggest me the best website or utube channel |
| Answer» physics wallah is the best utube channel | |
| 2476. |
How can we study physics subject?? |
| Answer» Clear your concept Solve ncert question and some extra question which is available on this app Practice every day And do revision compulsory<br>Through notes<br>By reading the book | |
| 2477. |
How to do Differentiation |
| Answer» Learn topic table | |
| 2478. |
What are neuton law of motoin |
| Answer» The first states that a body continues in a state of rest or uniform motion in a straight line unless it is acted on by an external force.<br>First law= if any object in motion wants to be in motion, if any object in rest wants to be in rest unless, until external force applied on it. It is also called inertial law of motion...Second law= the rate of change of momentum is directly proportional to the applied external force... According to this law force is defines as product of mass and acceleration..Third law= every action their is equal and opposite reaction , it is also called as action reaction pair... | |
| 2479. |
What Is The Difference Between Precision And Accuracy (I Dont Want NCERT Exact Same Answer) |
| Answer» Precision means the closeness of various measurements for the same quantity. Accuracy is the agreement of a particular value to the true value of the result. | |
| 2480. |
What is the difference between mass and weight ? |
| Answer» 1. Mass= Actual amount of matter present on the substance or matter is called mass. Where as weight is kind of force which possess in downward direction through the earth...2. Mass is fixed at every place of the universe but weight can change place to place because acceleration due to gravity is change. 3. SI unit of mass is kg. & SI unit of weight is N(newton).<br>No you are totally wrong Arpit Kumar ,...mass doesn\'t measure how much force it will take to change the way .but actul fact is that mass is the measure of inertia<br>Mass ka mtlb Ki the mass of all atoms contained by a substance ...mass is not a force but weight is a force which acts in downward direction..mass can never be zero Because the mass of atoms can\'t be in negative, Mass is always fixed because the mass of an atom can\'t be changed because the proton and neutron can\'t be ejected from the nucleus,But weight varies from place to place .Mass is a scalar questions and weight is a vector because it a force .and force follow vector law of edition so it\'s a vector QuantityAnd about unit then mass is kg and weight is Newton<br>1. Mass has only magnitude but weight has both magnitude and direction. 2. Mass is scaler but weight is vector. 3. Si unit of mass is kg, but si unit of weight is newton. 3 marks to aram se aa jayenge??<br>Mass is a measure of how\xa0much force\xa0it will take to change that path. Weight, on the other hand, is a measure of the amount of downwards force that gravity exerts on an object. | |
| 2481. |
Express Young’s Modulus of steel in dyne/cm3 Given, Young’s Modulus of steel is 19 x 1010 N/m2. |
| Answer» When expressed in CGS units of\xa0\xa0it will be equal to\xa0Young\'s modulus of steel is\xa0\xa0Expres it\xa0. Here dyne is the CGS unit of force. Thus,\xa0<br>MLT | |
| 2482. |
Relative valocity |
| Answer» The velocity that is relative | |
| 2483. |
The word physics come from?? |
| Answer» The word "physics" comes from greek word " fusis" means nature.. Physics is the study of nature and its law..<br>Greek<br>The word physics comes from.a Greek word physis which means nature<br>The word "physics" comes from Ancient Greek<br>Not knowned | |
| 2484. |
If A vector =4i^+ 4j^-4k^ Bvector =3i^+j^+4k^, then angle between a vector and b vector is. |
| Answer» Thnq<br>0<br>A+B = 7i+5j+0k|A|=4root3|B|= root26|R| =|A+B| = root74Now, use the formula for resultant|R|= root(|A|² +|B|² + 2|A||B|cosø) ,where ø is angle btw A and B By putting values you will get ans?? | |
| 2485. |
Radius of gyration? |
| Answer» Radius of gyration is a type of distance, Its SI unit is metre(m), its dimension is [L]. | |
| 2486. |
What is work energy theorm |
| Answer» The work done by an external unbalanced force on a given body is equivalent to the change in kinetic energy which has occured in the object. This is known as WORK ENERGY THEOREM. ie, W = FScosθ = K2 - K1. | |
| 2487. |
Kinatic energy of rolling body |
| Answer» | |
| 2488. |
Derive trajectory equation? |
| Answer» H (ψ) = Ε (ψ). Where H is Hamiltonian operator and (ψ) is wave function. ) | |
| 2489. |
Is this app has ncert examplar too |
| Answer» Yes<br>Yes | |
| 2490. |
using Calculus establish the reaction v2-u2-2as |
| Answer» THIRD LAW OF MOTION EXPLANATION BY CALCULUSMETHODa = dv/dt × ds/ dsa = ds/ dt × dv/dsa = v × dv/dsv dv = a ds✓ v dv = a ✓ ds[V2/2]2 = a[ s ]V2/2- u2/2 = a ( s-0 )V2-u2/2 = as{v2- U2 = 2as} proved<br>Kapada<br>E shark hairs tari ota di pa au oya ap park layoffs ooze oasis | |
| 2491. |
Why pulling a roller is injerous then pushing? |
| Answer» | |
| 2492. |
What is centripetal acceleration? Why is it produced in the curve linear motion? |
| Answer» | |
| 2493. |
Newtons low of cooling |
| Answer» Dyos69st,sodyd8d tinged z8yc roughly ey,kbxk | |
| 2494. |
Mcqs questions |
| Answer» | |
| 2495. |
Explain circular motion....centripital force defination |
| Answer» In a circular motion ,any body move along the radius<br>Centripetal force is the force required to move a body uniformly in a circle. This force acts along the radius to the centre.=> according to Newton first law of body cannot change it direction by itself. Some external force is required for this purpose. And this external forces is called centripetal force. | |
| 2496. |
Need some questions on work energy power case study based |
| Answer» Please search on google? | |
| 2497. |
Saving life from natural sorce what are drugs |
| Answer» | |
| 2498. |
Define current sensitivity of galvanometer. Write its expression |
| Answer» | |
| 2499. |
y=(x-1)(x-2)/x12 |
| Answer» | |
| 2500. |
What is parallex |
| Answer» Apparent displacement of an object because of a change in observer\'s point of view.<br>It is used to measure distance between sun or moon from earth | |