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.
| 1351. |
Defrence between G and g |
| Answer» G is gravitational constant whose value is 6.67×10to the power -11 whereas gis the acceleration due to gravity whose value is 9.8m/s<br>G=gravitational constant, g=acceleration due to gravity | |
| 1352. |
Name the largest and the smallest practical unit of energy. |
| Answer» Your wellcome. Ishita<br>Yours welcome. Ishita<br>Thnks 2 both of u<br>The smallest practical unit of energy is "JOULE"The largest practical unit of energy is " KILO WATT -HOUR<br>Smallest practical unit of energy is joule and largest practical unit of energy is kilowatt-hour. | |
| 1353. |
As it is known that action and reaction are equal and opposite then why dont they cancel each other |
| Answer» Because they act on different objects<br>I think because they attract each other and there is a force of attraction between them | |
| 1354. |
Define and derive the term \'Radius of gyration\'. |
| Answer» The moment of inertia of the body isI=m1k1^2+m2k2^2+m3k3^2.... Of m1 =m2 =m3 ...mnI=k^2(nm)k^2 I=mk^2Radius of gyration ,k=√(I/m)<br>The radius of an imaginary circle where all the particles of a body are assumed to be distributed on a circumference is called radius of gyration. | |
| 1355. |
defference between gravitation potential and gravitational potential energy |
| Answer» Gravitational potential energy is the energy associated with it due to its position in the gravitational field of the another body<br>Gravitational potential at a point in the gravitational field of a body is the amount of work done in bringing a body of unit mass from infinity to a particular point | |
| 1356. |
Why a force necessary for a work to be done? |
| Answer» we knowPush or Pull is called force studied in lower classes if a work is said to be done when the Body mo Ves along with the direction of force Then Force is needed tomake the body mone | |
| 1357. |
Difference between specific heat of gas |
| Answer» Please ask question with complete information. | |
| 1358. |
difference bw stress and pressure?? |
| Answer» 1. pressure represent intensity of external forces acting at a point. but stress represent intensity of internal resisting forces develop at a point.2. pressure is always acts normal to the surface. but stress may also act either normal or parallel to the surface.3. magnitude of pressure at a point in all direction remain same. but magnitude of stress at a point in all the direction are unequal.4. pressure can be measure by using measuring device.like pressure gauge. but stress can\'t be measure directly by using any device. | |
| 1359. |
Is cbse syllabus going to change next year class 12 |
| Answer» Few chapters are going to deleted next year.this was informed by our school<br>Cbse informed me that there is a chance<br>?????<br>? NO PLEASE NO!!!!!!!?<br>Syllabus is not changing but some chapters have been deleted from NCERT<br>I don\'t think so ? | |
| 1360. |
Difference bw oscillation and vibration? |
| Answer» Oscillation is a definite distance covered by the movement about its equilibrium position, vibration is referred to the physical change brought about due to movement of the body. Oscillation can be seen in the swinging of a pendulum clock and vibration in the plucking of guitar string. | |
| 1361. |
What are the laws of thermodynamic |
| Answer» The four laws of thermodynamics define fundamental physical quantities (temperature, energy, and entropy) that characterize thermodynamic systems at thermal equilibrium. The laws describe how these quantities behave under various circumstances, and preclude the possibility of certain phenomena (such as perpetual motion).The four laws of thermodynamics are:[1][2][3][4][5]Zeroth law of thermodynamics: If two systems are each in thermal equilibrium with a third system, they are in thermal equilibrium with each other. This law helps define the concept of temperature.First law of thermodynamics: When energy passes, as work, as heat, or with matter, into or out from a system, the system\'s internal energy changes in accord with the law of conservation of energy. Equivalently, perpetual motion machines of the first kind (machines that produce work with no energy input) are impossible.Second law of thermodynamics: In a natural thermodynamic process, the sum of the entropies of the interacting thermodynamic systems increases. Equivalently, perpetual motion machines of the second kind (machines that spontaneously convert thermal energy into mechanical work) are impossible.Third law of thermodynamics: The entropy of a system approaches a constant value as the temperature approaches absolute zero.[2] With the exception of non-crystalline solids (glasses) the entropy of a system at absolute zero is typically close to zero. | |
| 1362. |
what are three laws in units and measurements ? explain |
| Answer» | |
| 1363. |
A rifle barrel has a spiral groove which imparts spin to the bullet why? |
| Answer» Spin gives angular momentum to the bullet, which gives more stability against local air flow and pressure fluctuation, like gyroscope. It also helps bullet to penetrates more to the targets because of the same spin angular momentum. | |
| 1364. |
explain example 8.1of ncert physics class 11 in hindi |
| Answer» | |
| 1365. |
Two satellites of a planet have periods 32 days |
| Answer» Soo?? | |
| 1366. |
Is the triple point constant point? |
| Answer» Thanks<br>Triple point. ... In thermodynamics, the triple point of a substance is the temperature and pressure at which the three phases (gas, liquid, and solid) of that substance coexist in thermodynamic equilibrium. For example, the triple point of mercury occurs at a temperature of −38.83440 °C and a pressure of 0.2 mPa.<br>No it is not constant for evry matter<br>In thermodynamics, the triple point of a substance is the temperature and pressure at which the three phases (gas, liquid, and solid) of that substance coexist in thermodynamic equilibrium.for example, the triple point of mercury occurs at a temperature of −38.83440 °C and a pressure of 0.2 mPa.In addition to the triple point for solid, liquid, and gas phases, a triple point may involve more than one solid phase, for substances with multiple polymorphs. Helium-4 is a special case that presents a triple point involving two different fluid phases (lambda point).<br>I am trying to say ," is the triple point constant for every matter or different?<br>i dont understsnd your question | |
| 1367. |
explain bernaullies theorem ? through its equation and what are its applications explain |
| Answer» It is based on the law of conservation of energy and applied to ideal fluids.It states that the sum of presence energy per unit volume, kinetic energy per unit volume and potential energy per unit volume of an incompressible, non-viscous fluid in a stremlined irrotational flow remains constant at every cross-section throughout the liquid flow.P+ 1/2 (rho)V^2+(rho)gh = constant Application of Bernoulli theorm 1. Speed of Efflux2. Atomizer or sprayer 3. Blood flow and heart attack 4. Dynamic lift (A). Ball moving without spin (B). Ball moving with spin (C). Aerofoil, lift of an airlift wing | |
| 1368. |
Derivation of accelaration due to gravity |
| Answer» It is defined as the acceleration produced in the body under gravity or falls freely under the effect of gravity. So, F = GMem/Re^2 = mgg=GMe/Re^2 This is also known as relation between G & g. | |
| 1369. |
Snth = u+a/2 (2n-1) by calculus method |
| Answer» | |
| 1370. |
On which factor does the collision of particles per unit time increase |
| Answer» Temperature... | |
| 1371. |
Explain the phenomenon of capillarity? |
| Answer» Capillarity is the phenomena of auto rise or fall of fluid. For example, the autorise of oil in the wick of diya without any external force being applied is the process called capillarity.The capillarity is also known as ascent or descent formula. The autorise is ascent while fall is descent formula.... ? | |
| 1372. |
Application of bernoulli theorem. |
| Answer» The use of venturi meter to get the rate of flow of water<br>1. Flowing of roof by wind storm2. Action of atomiser3. Ball swings in cricket. | |
| 1373. |
Stress strain curve |
| Answer» | |
| 1374. |
Is Carnot cycle in syllabus or not? |
| Answer» Yes | |
| 1375. |
And from where this inertia came when the object is rest? |
| Answer» | |
| 1376. |
That means newton\'s third law is wrong? |
| Answer» | |
| 1377. |
Anybody who know me |
| Answer» When u introduce ur self then i\'ll know ...U know me??<br>???<br>Hahaha what a joke yakshi????<br>Yes......ur parents and relatives??? | |
| 1378. |
Hy guyies iam here |
| Answer» | |
| 1379. |
Form were i can start in learning |
| Answer» In physics????? Go according to chapters | |
| 1380. |
Why liquid molecules have excess energy compared to those inside the liquid? |
| Answer» Thanks for giving ans. I\'m in 11th class and from odisha.<br>In which class do u study and where from u are??<br>Hi Divya I am Ashwani Dhanwan Here your answer Surface energy is the excess energy exhibited by the liquid molecules on the surface compared to those inside the liquid. This means liquid molecules at the surface have greater energy as compared to molecules inside it. | |
| 1381. |
Hey after a long time i again come in this app ?? toh kaise ho aap log |
| Answer» ✌️✌️<br>Yakshi tumne phale bhii cmnt kia tha but sry may be u changed yur name can u pls tell me whts yur name before<br>???<br>My feeling is same<br>Feeling terrible after taking science ??? | |
| 1382. |
What is a gravity of moon |
| Answer» 1.62 m/s^2 | |
| 1383. |
What is the value of escape velocity on the surface of moon |
| Answer» Moon has no atmosphere because the value of acceleration due to gravity ‘g’ on surface of moon is small. Therefore, the value of escape velocity on the surface of the moon is small (only 2.5 km/s . The molecules of the atmospheric gases on the surface of the moon have thermal velocities greater than the escape velocity. That is why all the molecules of gases have escaped and there is no atmosphere on moon.<br>I found it on google and the answer is....11.2 km/s | |
| 1384. |
What is charge of one coulomb |
| Answer» 6.24×10 ki power 18 | |
| 1385. |
Find the mass of the earth? |
| Answer» | |
| 1386. |
What is collisions???? and explain its types?? |
| Answer» When objects collide, a number of different things can happen depending on the characteristics of the colliding objects. Of course, you know that momentum is always conserved in a closed system. Imagine, though, the differences in a collision if the two objects colliding are super-bouncy balls compared to two lumps of clay. In the first case, the balls would bounce off each other. In the second, they would stick together and become, in essence, one object. Obviously, you need more ways to characterize collisions.Elastic collisions\xa0occur when the colliding objects bounce off of each other. This typically occurs when you have colliding objects which are very hard or bouncy. Officially, an elastic collision is one in which the sum of the kinetic energy of all the colliding objects before the event is equal to the sum of the kinetic energy of all the objects after the event. Put more simply, kinetic energy is conserved in an elastic collisions.Inelastic collisions\xa0occur when two objects collide and kinetic energy is not conserved. In this type of collision some of the initial kinetic energy is converted into other types of energy (heat, sound, etc.), which is why kinetic energy is NOT conserved in an inelastic collision. In a perfectly inelastic collision, the two objects colliding stick together.In reality, most collisions fall somewhere between the extremes of a completely elastic collision and a completely inelastic collision. | |
| 1387. |
What is bulk modules |
| Answer» It is the ratio of normal stress(hydrolytic) and volumetric strain<br>?? Priya<br>Bulk modulules=pressure×initial volume/change in volume or 1/compressibility | |
| 1388. |
Someone please tell me that,"why sky appears blue in colour?" |
| Answer» sky is blue because molecules in the air scatter blue light from the sun more than they scatter red light. When we look towards the sun at sunset, we see red and orange colours because the blue light has been scattered out and away from the line of sight | |
| 1389. |
what is full form of SMG |
| Answer» SMG\tSarah Michelle Gellar Community » Famous & CelebritiesSMG\tSub-Machine Gun Governmental » MilitarySMG\tSequential Manual Gearbox Governmental » TransportationSMG\tStock Market Game SportsSMG\tSpecial Mobile Group Governmental » Military | |
| 1390. |
What is modulus of rigidity of fluid? |
| Answer» In water, and indeed all (Newtonian) fluids, the shear modulus is zero because if you apply a force the liquid simply flows and the strain becomes arbitrarily large | |
| 1391. |
Name a quantity whoes si unit is Wm-¹k—1 |
| Answer» | |
| 1392. |
What is ampere? |
| Answer» It is si unit of current<br>a unit of electric current equal to a flow of one coulomb per second. | |
| 1393. |
what is scal |
| Answer» | |
| 1394. |
If energy can\'t be created then where did energy comes from??? |
| Answer» I appreciate your question bro,But you will get to know its answer just by completing tne statement as it is transfered from one form to another.It is just transfered.And everything in the world comprise with energy ---- Punitjat YT 47 | |
| 1395. |
What r different formulas for angular momentum(L) in rotational motion |
| Answer» Its formula is (ANGULAR MOMENTUM- mvr)<br>Thanks<br>angular momentum is product of inertia and angular velocity. Angular momentum=mvr<br>Any other formula ??<br>L=IW(W=OMEGA) | |
| 1396. |
Why stress is a tensor quantity? |
| Answer» | |
| 1397. |
Why is steel is more elastic than rubber. Explain |
| Answer» Right answer priya<br>everyone thinks that rubber is more elastic than any thing else, because elastic is a synonym for rubber in day to day life, but in physics it is different. elasticity as a property is measured by young’s modulus(Y) the greater the value of ‘Y’ the material is more elastic.Y=Stress/strainhere stress is proportional to applied force and strain is proportional to elongation of specimen.now take two identical rods of steel and rubber and apply equal forces on their ends, now measure the elongation in them, obviously the elongation in rubber rod is much greater than that of steel rod. so the value of Y for Steel gets much larger than that for rubber, and so steel is more elastic than rubber. I just gave detailef explanation because this is mostly asked question in mechanical properties of solid.hope u understood the concepts involved in it | |
| 1398. |
Find gravitation acceleration at Re/4 height from surface? |
| Answer» | |
| 1399. |
Show concurrent forces are in equilibrium |
| Answer» | |
| 1400. |
What is benoullis principle |
| Answer» Sum of pressure energy ,kinetic energy and potential energy at any point is constent | |