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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.
| 10551. |
What is std flow |
| Answer» Idk | |
| 10552. |
What is efficiency of Carnot engine |
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Answer» Total work done in a complete cycle divided by absorbed heat A carnot engine is an Ideal engine , a hypothetical engine, given by Carnot.So it has an efficiency of 100%. |
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| 10553. |
Why is reversibility such a basic concept in thermodynamics? |
| Answer» \tA thermodynamic process is reversible if the process can be turned back such that the system and surroundings return to their original states, with no other change anywhere else in the universe.\tThis means in the Reversible processes if a process starts from initial state then it goes to final state and then it can reversed back from final state to initial state.\tExamples:- Isothermal expansion and compression, Electrolysis\xa0 | |
| 10554. |
Dimension calculation of physical quantities |
| Answer» | |
| 10555. |
What is full form of physics |
| Answer» If you don\'t know the meaning of physics, then why are you studying this subject. | |
| 10556. |
Vertical circular motion |
| Answer» Drive the expression for vertical circular motion | |
| 10557. |
Wt is thermal equilibrium |
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Answer» A state which is connected by a permeable barrier and dont have any heat transfer An equilibrium set up between two system when there is no exchange of heat Thermal Equilibrium\tTwo systems are said to be in thermal equilibrium if the temperatures of the two systems are equal.\xa0\tIn mechanics if the net force on a system is zero, the system is in equilibrium. \tIn Thermodynamics equilibrium means all the macroscopic variables (pressure, temperature and volume) don’t change with time. They are constant throughout. |
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| 10558. |
If we decrease kinetic energy 19% then find percentage decrement in momentum.. |
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Answer» 9.24% K= p /2mp= square root.2mKDecrease in Kinetic energy= 19% of Ki.e 19/100 * K = 0.19 KFinal K.E , K\'= 0.81Final momentum, p\' = square rt. 2mK\' = sqr. rt. 2m x 0.81K= 0.9 square root 2mK = 0.9pincrease in pp-p\'/p x 100 = p-0.9p/p x 100 = 10% |
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| 10559. |
which chapter carries the highest marks? |
| Answer» Mechanical properties of fluids | |
| 10560. |
what is the difference between work and torque? |
| Answer» TorqueTorque is defined as the moment of force i.e. the rotating effect produced by a given force.It is essentially the rotational analogue of force.Torque=force applied(f)× distance between axis of rotation and force applied(r)× sine of angle between force and distance(r)Work:In physics,work is said to be done when a force (F) acts on a body and the point of application of force is displaced(s) in the direction of applied force .Workdone= applied force × displacement of the body on which force is appliedW = F• s\xa0 | |
| 10561. |
Explain carnot engine |
| Answer» Not in syllabus | |
| 10562. |
find the vector perpendicular to each of the vector and two vectors angle between them |
| Answer» | |
| 10563. |
Calculate the temperature at which r.m.s velocity of gas molecules become double |
| Answer» | |
| 10564. |
Calculate the temperature at which r.m.s velocity of gqs molecules become double |
| Answer» | |
| 10565. |
Can a body have a constant velocity and still have a variying speed |
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Answer» No No No but vice versa is possible..ie a body can have constant speed while varying velocity as in case of uniform circular motion |
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| 10566. |
Simple pendulum experiment |
| Answer» | |
| 10567. |
What is zeroth law of thermodynamics |
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Answer» Zeroth law states that when two bodies A and B are in thermal equilibrium with 3rd body C then body A and B will be in thermal equilibrium with each other. Zeroth law states that when two systems A and B are in thermal equallibrium with another system C, then they are also in thermal equilibrium with each other. It states that whenever two systems A and B are in thermal equilibrium with the third system C separately then these two systems A and B are also in thermal equilibrium with each other. |
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| 10568. |
The edge of an aluminium cube is 10cm |
| Answer» That is not making any sence bro | |
| 10569. |
Derivation of projectile motion |
| Answer» | |
| 10570. |
How does Carnot cycle operates |
| Answer» Deleted from your syllabus | |
| 10571. |
Only girl comments i love you |
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Answer» Nonsense remember the motive of this app. Idiot Mil gaya na answer ab khush?? Stupid |
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| 10572. |
Calculas method |
| Answer» Differentiation | |
| 10573. |
Can a body moving with 0 velocity have a non zero speed ? |
| Answer» Yes it\'s possible, when there will be zero displacement for example if Nikita starts running on a circular field from point X and returns their after some time then displacement will be zero but she has travelled some distance therefore there will be some speed | |
| 10574. |
(x+1/x)³ |
| Answer» X⁴/4+3x²+3log s-1/2x² | |
| 10575. |
Convert 1 dyne into Newton |
| Answer» 1Newton =1,00,000 dyne | |
| 10576. |
Define error and accuracy. Mention the various types of errors and how to minimize it? |
| Answer» | |
| 10577. |
Numerical and theory . from both on which topic should i focus more in physics |
| Answer» In physics numerical are based on wordings so u need to check out that and theory is also same important as u need to know the basic concepts and numerical u have to apply those concepts to get your answer Both are equally important | |
| 10578. |
Uniform circular motion notes |
| Answer» | |
| 10579. |
What is the half-year chapters of physics |
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Answer» all chapters of part I. For which schl |
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| 10580. |
What do you mean by TIR ? Explain with the help of example |
| Answer» It is TOTAL INTERNAL REFLECTION..IT TAKES PLACE WHEN THE REFRACTED RAY IS JUST ABOVE THE CRITICAL ANGLE....IT TAKES PLACE IN RAINBOW | |
| 10581. |
Applications of parallax method |
| Answer» to find the distance of far objects | |
| 10582. |
(1001)1/3 solve by binomial theorem |
| Answer» | |
| 10583. |
Evaluate root25 upto 4 placesif decimal by using binomial theorum |
| Answer» | |
| 10584. |
How to measure heavenly distances |
| Answer» Parallax method | |
| 10585. |
physical world\'s notes are not here? |
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Answer» If u get then give to me also Yes i ve |
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| 10586. |
What is hilarious |
| Answer» | |
| 10587. |
Gravitation force |
| Answer» it is the force of mutual attraction between two bodies by virtue of their mass. | |
| 10588. |
Formula of surface energy |
| Answer» | |
| 10589. |
What is technique used for measuring large time intervals ? |
| Answer» radioactive dating. | |
| 10590. |
✏️ an accurate measurement may or may not be precise. justify.???? |
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Answer» ? = ? ????? Accuracy means how close the measured value is near to the true value and precision is minimum of digits in the measurmentsEx: let actual; weight of the body is 100 N.value given by some one is 99 kg.and value given by some one is 98.999 kgthen 99 kg is accurate value and 98.999 is precised value. |
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| 10591. |
What is the dimension of frequecy |
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Answer» hello mate, Frequency = number of vibrations/sec Dimensional Formula of Time = M0L0T1Putting these values in above equation we getDimensional Formula of Frequency = 1/ M0L0T1 = M0L0T-1Hence,Dimensional Formula of Frequency = M0L0T-1SI unit of Frequency is the hertz. Hello dear.....Ans. => we know that v = 1 / t Means t = [T] and v = frequency So, v = [T]^-1 ...........Life is _______ |
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| 10592. |
What is Acceleration? State SI unit |
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Answer» Change in velocity by time taken is known as accleration.S.I unit of accleration is N/s.s change in velocity at respect to time is called acceleration. its SI unit is m/s^2 |
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| 10593. |
What is reference frame? |
| Answer» A reference point in physics is a point in space, regardless of the type of geometry that you are using that stays still and does not move. From this point the behaviour of an object moving through that space can be determined.In 3 dimensional space, the reference point is usually considered to be the zero point where all 3 axes are 0....hope it helps :) and thumbs up if ur satisfied plss :)) | |
| 10594. |
Oleic acid |
| Answer» Fatty acid that occur naturally in various animal, vegetable fats and oils | |
| 10595. |
What is deminsonalless constant |
| Answer» | |
| 10596. |
What is fundamental quantities |
| Answer» | |
| 10597. |
If vector a + vector b=vector c and a+ b = c then find the angle between vector a and b |
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Answer» Wrong answer Thitha |
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| 10598. |
Solve sinx/1+cosx by differentiation |
| Answer» here its not possible its too much longer answer | |
| 10599. |
Can there be two vectors where the resultant is equal to either of them ? |
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Answer» In that case , the two vectors and their resultant will for a triangle with two side equal(resultant and one of the two vectors). Yes |
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| 10600. |
Can the velocity of a particle vary even if its speed is constant ? Give example. |
| Answer» Yes . The movement of earth around the sun. Its speed is constant but velocity is changing every moment due to the change in direction of the movemeg | |