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.
| 2351. |
Can a quantity have dimension , but still have no unit ? |
| Answer» No | |
| 2352. |
Is light year a unit of time ? |
| Answer» No, it is not a unit of time.. It is a unit of length. Light year is the distance that light travels in one year with velocity 3*10⁸ m/s.1 light year (ly)= 9.46*10¹⁵ m | |
| 2353. |
Write down the dimension of impulse |
| Answer» MLT-¹ | |
| 2354. |
Find the relative error in x , if x=a⁴b¹/³/cd³/². |
| Answer» | |
| 2355. |
y =sinxdx |
| Answer» -Cosx | |
| 2356. |
Define frame of reference and explain their types with example |
| Answer» | |
| 2357. |
Gravitation lesson formulas |
| Answer» F=G×m1×m2/r2 | |
| 2358. |
The law of inertia |
| Answer» | |
| 2359. |
Dimension of area |
| Answer» Area= Length × Breadth = Length × Length = [L] ×[L] = [L²] | |
| 2360. |
What is limitation of dimensional analysis? |
| Answer» The limitations of dimensional analysis are: (i)\xa0We cannot derive the formulae involving trigonometric functions, exponential functions, log functions etc., which have no dimension. (ii) It does not give us any information about the dimensional constants in the formula. | |
| 2361. |
A particle is thrown with velocity u making an angle theta |
| Answer» times taken to reach P is\xa01s\xa0thereforev2=u2+2aSv2=u2cos2θ−2ghlet the distance from P to reach at the top be xv2=u2+2as0=u2cos2θ−2gh−2gxx=2gu2cos2θ\u200b−htime taken is\xa0v=u+at0=ucosθ−g−gtt=gucosθ\u200b−1time taken to reach top from P is\xa01s2g=ucosθmaximum height\xa0H=2gu2cos2θ\u200b\xa0as the verical component is\xa0ucosθtherefore\xa0H=2g(2g)2\u200b=2g=19.6m | |
| 2362. |
How many radians are present in 18630 second |
| Answer» 1degree =60minuts 1minuts=60secondsSo 18360/60×6018360/36001836/360612/120204/6068/2034/1017/5 radians<br>1degree =60minuts1minuts=60seconds | |
| 2363. |
Explain the origin of elasticity in a solid a one basis of microscopic nature of the solid |
| Answer» | |
| 2364. |
y=cos(x²+2x+1) |
| Answer» | |
| 2365. |
1/2 mv2 = mgh |
| Answer» Home>Check the equation 1 / 2 mvsquare=mgh is dimensionally correct or notQuestionCheck the equation 1/2mvsquare=mgh is dimensionally correct or notSolution1/2mv² = mghwe have to check the correctnessby dimensional analysisSo LHSDimensional formula of 1/2mv²will. be [M¹ L²T-²]so now RHSmghdimensional formula of mass is [M¹]dimensional formula of g (acceleration due to gravity) is [ L¹ T-²]dimensional formula of height(length) is [L¹]so dimensional formula of mgh will be= [M¹ L²T-² ]so LHS = RHSit means formulas are dimensionally correct. | |
| 2366. |
Write 20 dimension |
| Answer» | |
| 2367. |
Equivalence of 1watt hour in si unit |
| Answer» | |
| 2368. |
What is classical science? |
| Answer» Classical science is the science in which we study about macroscopic such as thermodynamics , entropy, light effect, energy etc. | |
| 2369. |
How to convert 0.25 into degree |
| Answer» | |
| 2370. |
Give the relayinship between light year and meter |
| Answer» A light year is the distance light travels in oneyear. ... A light year here has units of meters, so\xa0the meter units cancel and only the “light year" unit remains.<br>This content has been hidden. One or more users have flagged this content as inappropriate. Once content is flagged, it is hidden from users and is reviewed by myCBSEguide team against our Community Guidelines. If content is found in violation, the user posting this content will be banned for 30 days from using Homework help section. Suspended users will receive error while adding question or answer. Question comments have also been disabled. Read community guidelines at https://mycbseguide.com/community-guidelines.html Few rules to keep homework help section safe, clean and informative. Don\'t post personal information, mobile numbers and other details. Don\'t use this platform for chatting, social networking and making friends. This platform is meant only for asking subject specific and study related questions. Be nice and polite and avoid rude and abusive language. Avoid inappropriate language and attention, vulgar terms and anything sexually suggestive. Avoid harassment and bullying. Ask specific question which are clear and concise. Remember the goal of this website is to share knowledge and learn from each other. Ask questions and help others by answering questions. | |
| 2371. |
Velicity time graph |
| Answer» | |
| 2372. |
Establish the relation between coefficient of linear expansion and coefficient of areal expansion. |
| Answer» γ = 3α<br>Idk<br>No | |
| 2373. |
Molecular weight of potash alum K2SO4.Al2(SO4)3.24H2O |
| Answer» Equivalent weight =8948. 7=118. 5g. | |
| 2374. |
T7 |
| Answer» | |
| 2375. |
100g of ice at 0°C is mixed with 100g of water at 80°C |
| Answer» | |
| 2376. |
Drive relation between cp-cv |
| Answer» Cp -cv = R Universal gas constant 8.314Joule per mole Kelvin<br>Cp∅cv | |
| 2377. |
Why are girders given I shape |
| Answer» | |
| 2378. |
Why physics not mitrochondria ? |
| Answer» | |
| 2379. |
Universal low of gravitational |
| Answer» F =g×m1m2w/r²<br>F = G M1. M2/r2Two bodies is directly proportional to the mass of the object and inversely proportional to the distance between them.G = Universal Gravitational constant 6.67×10*11 n m square kilogram square.g= G me /r square g is acceleration due to gravity It\'s value maximum at pole minimum at equator that\'s why weight of the body at the centre of earth would be zero.9.8m/sec *2G is given by Henry Cavendish Three equation of motion under gravity V = u +gt H = ut +1/2 gt 2iV *2 = u *2 ×2 gh Motion in n second HN = u +1/2 a (2 n -1)Value of g will be positive incase of up to down motion<br>Every particles attracts every other particles in the universe with a force that is directly proportional to the product of there masses and inversely proportional to the square of the distance between their centers.<br>G=m1+m2/r^2 | |
| 2380. |
5xsquare +1uponroot 3 |
| Answer» | |
| 2381. |
What is bernaulli theorem |
| Answer» When a ideal fluid is flow in a streamlined tube all types of energy (ke +pe +) will be same at all place.Based on conservation of energy Example atomizier, venturimeter.<br>It is based on conservation of energy<br>Don\'t know | |
| 2382. |
मेयर नियम का प्रतिपादन करें |
| Answer» C p - cv = R<br>Cp- CV = R<br>Pls open my paper | |
| 2383. |
मेयर नियम की व्याख्या करें |
| Answer» C p -cv = R | |
| 2384. |
Derive the expression for time period of simple pendulum |
| Answer» | |
| 2385. |
What is dynamic |
| Answer» Study of objects in motion | |
| 2386. |
Thermodynamics ki notes dedo koi ? |
| Answer» Photo ya pdf | |
| 2387. |
Explain poisson\'s ratio |
| Answer» When a deforming force applied at the free and of a suspended wire of length l,and radius r, then length is increase by∆l, radius is decrease by∆r<br>The ratio between lateral strain to longitudinal strain within elastic limit<br>Sorry buddy it\'s hookes law<br>Poisson ratio define that stress is directly proportional to strain with in elastic limit..<br>H | |
| 2388. |
Bernolli principle and its derivation |
| Answer» In fluid dynamics, Bernoulli\'s principle states that an increase in the speed of a fluid occurs simultaneously with a decrease in static pressure or a decrease in the fluid\'s potential energy. | |
| 2389. |
Work done is isothermic ? |
| Answer» Total heat energy is only used in work .It is slow process ∆q = ∆w+∆t T is constant ∆q= ∆w<br>Isothermal means temperature ha kya<br>Dw<br>Infinite<br>Infinite | |
| 2390. |
When the heat is transmitted by molecular collision |
| Answer» | |
| 2391. |
Proof of Bernoulli principle |
| Answer» | |
| 2392. |
What is the dimensional formula of gravitational constant? |
| Answer» M1 L 3 T 2<br>M-1 L3 T-2<br>M-1 L3 T-2 | |
| 2393. |
Derive an expression for pressure at a depth h In a fluid |
| Answer» @mrinmoy lol..hhaha<br>Pata nhi | |
| 2394. |
Work done is isothermal or adiabatic process |
| Answer» 2.303 nRT logV2/V1 in isothermal<br>Isothermal<br>I don\'t know | |
| 2395. |
Derivation of isothermal expansion |
| Answer» Ur Didier ri | |
| 2396. |
Isothermal expansion |
| Answer» | |
| 2397. |
Derive displacement relation for a progressive wave travelling in plus direction |
| Answer» | |
| 2398. |
for what value of x, the vector A=3i+xj -4k is perpendicular to the vector B=2i-2j+6k\u200b |
| Answer» x= -9 | |
| 2399. |
center of mass |
| Answer» | |
| 2400. |
What is the principle behind equation of continuity |
| Answer» | |