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.
| 1501. |
Difference between gravitational potential and gravitational potential energy? |
| Answer» The gravitational potential (V) is the potential energy (U) per unit mass: where m is the mass of the object. Potential energy is equal (in magnitude, but negative) to the work done by the gravitational field moving a body to its given position in space from infinity.Gravitational potential energy is energy an object possesses because of its position in a gravitational field. The most common use of gravitational potential energy is for an object near the surface of the Earth where the gravitational acceleration can be assumed to be constant at about 9.8 m/s2. | |
| 1502. |
What happens when we leave 2 objects/bodies with equal masses in space? |
| Answer» They starts to move one around another in space because they are of equal massesIf one body is have more mass and another have less mass then the lesser mass having body will move towards more mass having body,therefor. " the heavier object will always attract lighter object in space"<br>Nothing will happen they will experience equal weight i..e.. zero weight called weightlessness.<br>They will be weightless.... | |
| 1503. |
Is there any difference in the heat and work |
| Answer» Heat is transfer of thermal energy while work is transfer of mechanical energy between two systems | |
| 1504. |
What is the difference between heat and temperature |
| Answer» The Heat is defined as when an object is become hotter or we can say that the Motion of molecules inside it. Is called heat or total energy of all the molecular motion in it.Temperature is measure of The of the average heat or thermal energy of molecules in a substance. | |
| 1505. |
What is difference between accuracy and precision |
| Answer» If an answer is coming 10.32 so it is accurate value and 10 will be it\'s precise value | |
| 1506. |
Why the Centre of mass for two particle system lies on the line joining the two particles? |
| Answer» Because there the entire mass of that is appers to be concentrated? | |
| 1507. |
Phase epoch and phase difference |
| Answer» | |
| 1508. |
Name the physical quantity which is equal to time rate if change of angular momentum |
| Answer» Changing the point can change the torque\'s magnitude and direction. The vector sum of all torques acting on a particle is equal to the time rate of change of the angular momentum of that particle | |
| 1509. |
How and why pressure=f/a=mgh |
| Answer» | |
| 1510. |
Escape velocity derivation |
| Answer» 1/2mv^2 = G Me m/Re1/2v^2 = g Re^2/Re. Using GMe=gRe^2v^2=2gReVe=underroot 2gRe | |
| 1511. |
I want a physic coaching centre I live in darbhanga |
| Answer» It is a name of district<br>Ye ky h darbhanga | |
| 1512. |
Numerical questions on tension |
| Answer» You can go with DC Pandey also<br>Solve cengage..it will help u | |
| 1513. |
Derivation of Ch mechanical in fluids |
| Answer» | |
| 1514. |
Convert t=rf sin, into l = rp |
| Answer» | |
| 1515. |
Breaking stress |
| Answer» Breaking stress is the maximum force that can be applied on a cross sectional area of a material in such a way that the material is unable to withstand any additional amount of stress before breaking. ... Breaking stress may also be known as ultimate tensile stress or breaking strength. | |
| 1516. |
Plz expalin applications of moment of inertaia |
| Answer» Inertia : short time acting force called inertia. Inertia = f*t .<br>There are many applications such as rotating of earth , why we apply 2 blades in helicopter, etc | |
| 1517. |
Where we applied formula equation of motion |
| Answer» When acceleration is constant<br>Where it is necessary<br>Hhafshsjsvsbkzvss | |
| 1518. |
Sound |
| Answer» | |
| 1519. |
How to differentiate 3i+4j+5k |
| Answer» 3i means 3units in xdirection4j means 4units in ydirectionSimilarly,5k means 5units in z direction | |
| 1520. |
Cbse has added new chapter that is optics in physics |
| Answer» Yes<br>Yes it was ray optics<br>Yes<br>Hmmm | |
| 1521. |
Why value of cp is greater than cv? |
| Answer» Cp is greater than Cv because at const.pressure whole heat is used in two ways. 1.Change in internal energy. 2.Work done,while at const. Volume,whole heat is converted into change in internal energy only. Hence Cp>Cv. | |
| 1522. |
What is shear modulus ? |
| Answer» The ratio of tangential stress to tangential strain is called shear modulus<br>Shear modulus = normal stress ÷ shearing strain G = F/A÷∆l/lG= F×l÷A×∆L G represents shear modulus | |
| 1523. |
Why road looks straight ,as earth is round |
| Answer» Because the road is only a unit square(or can say a very very small part or point on earth ) so since it is very small it seems to be straight. Like if you see a sphere and put your hand on it in which your thumb must be perpendicular to the rest of the hand you will see that the very small area taken as an observation it seems to be like almost same. | |
| 1524. |
Prove work energy theorem |
| Answer» | |
| 1525. |
State and prove conservation of angular momentum |
| Answer» dL/dt=Torque If torque is zero L = constant<br>Angular momentum of a system remain constant | |
| 1526. |
Newtom 1st law |
| Answer» The rate of change of momentum is directly proportional to force | |
| 1527. |
which is more elastic rubber or thin steel foil |
| Answer» Because elasticity is equal to stress/strain and by this formula you can conclude that thin steel foil is more elastic. Let\'s do an experiment take a rubber and a steel foil and stretch them you will observe the stretching power of a rubber is higher but the longation of foil is higher than rubber.<br>Why<br>Thin steel foil | |
| 1528. |
Explain pascal law ? |
| Answer» When a pressure is transmitted to one part of the fluid then this increase in pressure is transmitted diminished to all part of the fluid | |
| 1529. |
About centre of mass |
| Answer» Tne centre of mass of any object is that point at which the object can be balanced. | |
| 1530. |
Sir physics mai kya read kare |
| Answer» physics ki ncert bahut confusing hai?.. it\'s better to clear your concept follow SL nd do questions from ncert.<br>Tum ncert ko follow karo sab samaj ajayega | |
| 1531. |
Can i get through jee mains if i start jee coaching in class 12th ......? |
| Answer» I\'m doing preparation for AIIMS & neet..so l will not give any tips for jee mains... but hard work will give you success<br>Any tips......???.....?<br>Of course.. | |
| 1532. |
Explain different types of errors in measurement with remedies |
| Answer» | |
| 1533. |
Why friction is a non conservative force? |
| Answer» | |
| 1534. |
What do you mean by Thermodynamic Equilibrium |
| Answer» if volume, pressure, and temperature is constant then we can say that system is in thermodynamic equillibrium | |
| 1535. |
how to find final velocities of object in inelastic collision in 1dimension |
| Answer» | |
| 1536. |
Hey...... |
| Answer» | |
| 1537. |
What is Newton Newton third law |
| Answer» Hi kush<br>Heya priya!!!<br>For every action, there is an equal and opposite reaction. | |
| 1538. |
what is motion in two dimensions??? |
| Answer» Observer observed and state that both the co-ordinate i.e,x-axis as well as y-axis of the given co-odinate system is changing. Ex-motion in plane. | |
| 1539. |
How much time take sunlight to reach on earth surface |
| Answer» 8min 20sec<br>8 min 20 sec<br>8min 24sec | |
| 1540. |
If anyone wants to ask any ques. On unit rotational motion then he/she can ask. |
| Answer» | |
| 1541. |
what will happen if the earth get shrink half of its radius. also the affect on day and night? |
| Answer» yes, it definetly affect.. the duration of the day is decrease by 6 hours<br>No,I dont think so | |
| 1542. |
Name any two physical quantities which have unit but no dimension |
| Answer» Angular displacement, solid angle,plane angle<br>Temperature, | |
| 1543. |
Find the centre of mass of a solid cone |
| Answer» H/4<br>3/4H from base<br>Thanks<br>H/2 from beneath | |
| 1544. |
Kuch physics ke questions puchu? |
| Answer» Find the centre of mass of a solid cone<br>Yes | |
| 1545. |
The resultant of vector OA and OB is perpendicular to vector OA .Find the angle AOB. |
| Answer» 180 | |
| 1546. |
Is lab manual available for class 11 |
| Answer» Yes it is there.<br>Off course | |
| 1547. |
Difference between conservative and non conservative force?? Answer |
| Answer» Forces that store energy are called conservative force and those forces that do not store energy are called non conservative force . Conservative forces are against gravity and non conservative forces are friction. e.g you lift a book it is against gravity and you push a book it is friction. | |
| 1548. |
Calculate the value of acceleration due to gravity at a place of latitude 45° |
| Answer» | |
| 1549. |
Force f = (2xy+z)+2x+5yz from (0,1,2) to (5,6,8) find work done |
| Answer» Thanks??yrr<br>bye ?.. Good luck for your exam. ?<br>OK... Byee to all of u..... | |
| 1550. |
About which axis,the moment of inertia of a body is minimum |
| Answer» Moment of inertia depends upon the axis of rotation ??<br>At center, the moment of inertia is minimum<br>ăround it\'s centre of mass the movement of inertia of body is minimum. | |