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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.
| 5351. |
Which book is the best of physics in class 11th |
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Answer» HC verma HC verma Sl simplfied for questions and concepts both |
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| 5352. |
What is relative motion |
| Answer» The motion of one body with respect to another regarded as fixed .Relative motion is the calculation of the motion of an object with regard to some other moving object. Thus, the motion is not calculated with reference to the earth, but is the velocity of the object in reference to the other moving object as if it were in a static state.For example, a person sitting in an airplane is at zero velocity relative to the airplane, but is moving at the same velocity as the airplane with respect to the ground. Relative motion is a concept, and its calculation occurs with relative velocity, relative speed, or relative acceleration (which is the change in velocity divided by the change in time). | |
| 5353. |
What is conservation of momentum and its derivation |
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| 5354. |
Nature of friction |
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| 5355. |
Instantaneous acceleration |
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Answer» acceleration at a particular instant of time Acceleration at any instant of time. |
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| 5356. |
A ball is thrown Up under gravity. Find its velocity after 1.0 second at a height of 10m |
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| 5357. |
What is projection |
| Answer» Projection. A body is thrown with an initial velocity u along the horizontal direction. | |
| 5358. |
Types of errors of measurements |
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| 5359. |
Types of errors of measurement |
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| 5360. |
How many dyne are there in 1newton |
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| 5361. |
Know about vector |
| Answer» Vectors are those physical quantities which are determined by both direction and magnitude and also follow vector law of addition | |
| 5362. |
How speed increases from level circular Road to banked circular Road |
| Answer» Because there is increase in friction in banked road between wheels and road as in banked road the outer edge of road is raised at small angle | |
| 5363. |
please provide last year \'half yearly\' question papers of all subjects |
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| 5364. |
Derive equation for horizontal range of a projectile |
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| 5365. |
Bullet fired from a gun is a projectile motion explain? |
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| 5366. |
If velocity is constant then it is necessary that acceleration is also constant.explain |
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| 5367. |
How to convert cgs to mks unit |
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| 5368. |
Define 1 joule of work |
| Answer» One Joule is defined\xa0as\xa0the energy transferred (or work done) to an object when a\xa0force\xa0of one\xa0newton\xa0acts on the\xa0object in the direction of its motion through a distance of one metre\xa0(1 Newton metre or 1 Nm). | |
| 5369. |
Explain the kinetic friction |
| Answer» Kinetic friction, also known as sliding friction or moving friction, is the amount of retarding force between two objects that are moving relative to each other. | |
| 5370. |
Using newton\'s third law prove conservation of linear momentum |
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| 5371. |
Which law of Newton is failed in the theory of launching of missile |
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| 5372. |
What is localized vector |
| Answer» A vector which is drawn parallel to a given vector through a specified point unlike free vector in space is called a localised vector. The effect of a force acting on a body depends not only on the magnitude & direction but also on its point of application & line of action. | |
| 5373. |
Explanation of projectile concept |
| Answer» When an object is thrown into air with an initial velocity then the object moves freely under gravity is called projectile motion.The path of projectile is called trajectory. | |
| 5374. |
what will be value of a in 2icab |
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| 5375. |
Show that newtons third law of motion is contained in the second law |
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| 5376. |
Sir ,I need all derivations list wise of physics class 11 |
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| 5377. |
Integration and differentiation |
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| 5378. |
What is kinametics. |
| Answer» Kinematics is a branch of classical mechanics that describes the motion of points, bodies (objects), and systems of bodies (groups of objects) without considering the mass of each or the forces that caused the motion. | |
| 5379. |
convert ine dyne into newton |
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| 5380. |
Derive an equation for centripetal acceleration |
| Answer» Consider the distance traveled by the body over a small time increment Δt:We can calculate the arc length s as both the distance traveled (distance = rate * time = v Δt) and using the definition of a radian (arc = radius * angle in radians = r Δθ:)The angular velocity of the object is thus v / r (in radians per unit of time.)The right half of the diagram is formed by putting the tails of the two v vectors together. Note that Δθ is the same in both diagrams. | |
| 5381. |
Why parallel method is not applicable for more than the distances of 100m |
| Answer» Because we need to measure very very small changes in the stars’ positions. | |
| 5382. |
What is the direction and magnitude of a 10g bottle cap floating on the surface of water ? |
| Answer» Upward | |
| 5383. |
What is elasticity? |
| Answer» Elasticity is the ability of a body to resist a distorting influence or deforming force and to return to its original size and shape when that influence or force is removed. Solid objects will deform when adequate forces are applied on them. If the material is elastic, the object will return to its initial shape and size when these forces are removed.The physical reasons for elastic behavior can be quite different for different materials. In metals, the atomic lattice changes size and shape when forces are applied (energy is added to the system). When forces are removed, the lattice goes back to the original lower energy state. For rubbers and other polymers, elasticity is caused by the stretching of polymer chains when forces are applied. | |
| 5384. |
My que.. is That There is only one CENTRE OF MASS of an object |
| Answer» Centre of mass is a place where the mass of the whole body is concentrated or in other words it is a point where force of attraction of particles with virtue of their mass act upon | |
| 5385. |
It\'s really important to study physsiscs with hours |
| Answer» No it is not that you just studies for hours but it depends how fast or slow you grab the important as well as basic points. So first see how much time u take to learn one topic or derivation. #i think u r satisfied ☺☺☺ | |
| 5386. |
Significant figure |
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Answer» Significant figures are the figures which are known for their certainty The figure which is important to express a quantity or measurement |
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| 5387. |
Explain the phenomenon of banking of roads and railway tracks |
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| 5388. |
Why buffers are provided between the bogies of a railway train |
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| 5389. |
What is spacetime |
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| 5390. |
give difference between accuracy and precision |
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Answer» Accuracy, it is a measure of how close the measured value is to the true value of the quantity.Precision, it is the limit upto which quantity can be measured. Precision means how consistent the results are when measurement are repeated Accuracy means closeness to true value |
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| 5391. |
Prove that second law of nation is real |
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| 5392. |
Chapter 4what is potential energy and is derivation |
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| 5393. |
What is instaneous speed and velocity |
| Answer» Below we have define the instaneous speed and velocity.Instantaneous velocity is defined as the rate of change of position for a time interval which is very small (almost zero).We know that the average velocity for a given time interval is total displacement divided by total time. As this time interval approaches zero, the displacement also approaches zero. But the limit of the ratio of displacement and time is non zero and is called the instantaneous velocity.Instantaneous VelocityIf the displacement of the particle varies with respect to time and is given as (6t2 + 2t + 4) m, the instantaneous velocity can be found out at any given time by:s = (6t2 + 2t + 4)Velocity (v) = dsdt= d(6t2+2t+4)dt= 12t + 2So if we have to find out the instantaneous velocity at t = 5sec, then we will put the value of t in the obtained expression of velocity.Instantaneous velocity at t = 5 sec = (12×5 + 2) = 62 m/sLet us calculate the average velocity now for 5 seconds now.Displacement = (6×52 + 2×5 + 4) = 164 mAverage velocity = 1645 = 32.8 m/sInstantaneous Speed:We know that the average speed is for a given time interval is total distance travelled divided by the total time taken. As this time interval approaches zero, the distance travelled also approaches zero. But the limit of the ratio of distance and time is non zero and is called the instantaneous speed.To understand it in simple words we can also say that instantaneous speed at any given time is the magnitude of instantaneous velocity at that time. If distance as a function of time is known to us, we can find out the instantaneous speed at any time. Let’s understand this by the means of an example.Distance (s) = 5t3 mSpeed (v) = dsdt= d(5t3)dt= 15t2We can now easily find the instantaneous speed at any given time by putting the value of t in this obtained expression. | |
| 5394. |
what is projectile motion explain with diagrams and foemulla |
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Answer» When a body is thrown obliquely near the earth surface it moves along a curved path.such a body is called projectile and it\'s motion is called projectile motion It is a 2 dimensional motion becoz at each instant it can be divided along two perpendicular axis ,except at maximum height. |
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| 5395. |
What is calculus method?and how integrate problems are solved? |
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| 5396. |
Why are hammer with long handle preferred\xa0 |
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| 5397. |
Why pulling the lawn roller is preferred than pushing the lawn roller |
| Answer» The force applied on the body to move depends upon effective force applied on it including its wight . As defective weight in the case of pulling is less than in the pushing. | |
| 5398. |
What is cross product |
| Answer» Cross product is the vector product of the vector which are mutually perpendicular to each other | |
| 5399. |
Find the direction of vector icap +j cap+3k cap |
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| 5400. |
Is gravity or gravitational force are the different things???? |
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Answer» g=9.8m/sec G and g Yes , gravitational force means the force of attraction between two bodies or object and gravity means the force which earth exert on object |
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