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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.
| 10401. |
A spring is cut into 2 equal parts ,how is the spring constant of each half effected |
| Answer» The spring constant remains unaffected because it depends only on the nature of the material and not on dimensions. | |
| 10402. |
Define error |
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Answer» Error is the uncertainty in calculation. It is defined as the difference between the true value and measured value The error is defined as the measure of the estimated difference between the observed or calculated value of a quantity and its true value. |
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| 10403. |
What is range of nuclear force |
| Answer» The weak nuclear force has a limit in range of only 10 to -18th meters. This means that the carrier particles must indeed have mass. The weak nuclear force is found to have three carrier particles, two W bosons, one charged -1 and one charged +1, and the electrically neutral Z boson. | |
| 10404. |
Who calculus idea was given |
| Answer» Newton | |
| 10405. |
Which force weak in nature |
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Answer» Gravitational Gravity is the weakest force. |
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| 10406. |
What is gross erro |
| Answer» The Gross errors are undetected mistakes that cause a measurement to be very much farther from the mean measurement than other measurements | |
| 10407. |
Rubber tyres are preferred to steel tyres ?why |
| Answer» Rubber tires are preferred to steel tires because if we had steel tires driving over the smallest pebble would be a very bumpy ride. Rubber tires are flexible and will be smooth when going over rocks and also, rubber tires wear out and that means you will have to buy new ones again. | |
| 10408. |
Draw the product of two vectors always a vecter give exam. |
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| 10409. |
what is mechanic |
| Answer» Mechanics (Greek μηχανική) is that area of science concerned with the behaviour of physical bodies when subjected to forces or displacements, and the subsequent effects of the bodies on their environment. It can also be defined as a branch of science which deals with the motion of and forces on objects. | |
| 10410. |
What does the P stand for the opposing force F in a incline plane |
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| 10411. |
A star of mass twice the solar mass and radius 10^6km |
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| 10412. |
V=at+b/c+t Find dimensionalAnalysis of a‚b‚and c |
| Answer» V=atDimension of V=dimension of at [LT-1]/[T]=aa=[LT-2]Dimension of c+t=[T]Dimension of b/c+t=dimension of v b=[LT-1]/[T] =[LT-2] | |
| 10413. |
Give five sentences in which a force can change the direction of motion of an object. |
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| 10414. |
Give five sentences in which a force can change the speed of an object in motion. |
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| 10415. |
Give five sentences in which a force can stop a moving body. |
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| 10416. |
Give five sentences in which a force can move a stopped body. |
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| 10417. |
state NEWTONS 1&2 LAWS OF MOTION |
| Answer» Newton 1 law:it states that a body continues to be in state of rest or motion or in same direction unless and untill an external force is applied on it.It is also caled law of inertiaNewton 2 law :the force acting on body is directly proportional to rate of change of linear momentumF=ma where m is mass and a is acceleration | |
| 10418. |
Describe launching of satellites |
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| 10419. |
What\'s efficiency in terms of physics?? |
| Answer» ratio of output to the input | |
| 10420. |
Vector quantities |
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Answer» The physical quantity having both magnitude and direction and which follows vector addition rules is called vector quantity...hope that you like it...? These quantities have both magnitude and direction Quantities having magnitude as well as direction are called vector quantities. For example: displacement, velocity, acceleration, force |
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| 10421. |
If x=a+bt+ct2 where x is in metres and t in seconds, write the units of a,b,andc |
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Answer» A= meters b= meters/second c= meters / second square a = metresb = metre/secondc = metre/second² |
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| 10422. |
What is the workdone by tensil force on a moving in circular path |
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| 10423. |
Is speed become negative or not? |
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Answer» Never... It can be in opposition direction No |
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| 10424. |
The anguler velocity of the earth around the sun is increase when it come closer.Why? |
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| 10425. |
Please suggest a topic for saminar |
| Answer» I think friction is best topic | |
| 10426. |
What is moment of inertia of frustom of cone |
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| 10427. |
Compare stationary and moving objects in 5 points |
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| 10428. |
What happens when we combine a vector with it\'s negative vector? |
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Answer» 0 Nahi pata |
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| 10429. |
Parllel Axis theroem |
| Answer» I = md^2 + I(centre of mass)According to the parallel axis theorem the moment of inertia of any rigid body about any axis is equal to the moment of inertia of the body about the another Axis passing through the centre of the mass of the body in the direction parallel to the given Axis the product of the total mass of the body M and the square of the separation distance between the two parallel Axes is shown in figure | |
| 10430. |
Due to capillarity action,a liquid will rise in a tube, if the angle of contact is |
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| 10431. |
State hook\'s law |
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Answer» Stress is directly propotional to strain Simply where stress is directly proportional to strain It states that within the elastic limit, stress developed is directly proportional to the strain produced in a body \tRobert Hooke was the scientist who gave Hooke’s law.\tHooke’s law states that within the elastic limit, stress developed is directly proportional to the strain produced in a body.\tConsider a scenario where we apply external force to the body. As a result stress develops in the body due to this stress there will be a strain produced in the body which implies that there will be some deformation in the body.\tBecause of stress, strain is produced.\tAccording to Hooke’s law, if strain increases the stress will increase and vice-versa.\tThe Hooke’s law is applicable to all elastic substances.\tIt does not apply to plastic deformation.\tMathematically :\tstress ∝ strain\tstress = k × strain\tWhere k is the proportionality constant and is known as modulus of elasticity. |
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| 10432. |
I could not solve my numercial problem |
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Answer» which chapter?? करत करत अभ्यास जड़ मति होत सुजान रसरि आवत जात है शील पर परत निशान Hey , make sure that your each and every derivation of the chapters must be clear and there should not be a tiny doubt for any future enquiry about anything. Dont wait for tuitor and do practice by your own and will overcome this problem within a few weeks. Hope it will helpful.? Stay focused and complete one topic in a day |
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| 10433. |
Newton father |
| Answer» Sir Issac newton | |
| 10434. |
Relationship between BHP and Nm? |
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| 10435. |
Notes on surface tention |
| Answer» Surface Tension\tSurface tension is the property of the liquid surface which arises due to the fact that surface molecules have extra energy.\tSurface energy is the extra energy which the molecules at the surface have.\tSurface tension is the property of the liquid surface because the molecules have extra energy.\tSurface energy is defined as surface energy per unit area of the liquid surface.\tDenoted by ’S’. | |
| 10436. |
Derive the third equation of uniformly accelerated motion by calculus method |
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| 10437. |
Rain drops falling under gravity do not acquire very high velocity. Why? |
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Answer» I thing that the question is wrong ? No Due do air resistance |
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| 10438. |
Prove that the path of a projectile is parabola |
| Answer» Let a body is projected with speed u m/s inclined θ with horizontal line .Then, vertical component of u, = ucosθHorizontal component of u , = usinθacceleration on horizontal, ax = 0acceleration on vertical, ay = -gNow, use formula ,x =\xa0x = ucosθ.tt = x/ucosθ------(1)Again, y =\xa0y = usinθt - 1/2gt²Put equation (1) here,y = usinθ × x/ucosθ - 1/2g × x²/u²cos²θ= tanθx - 1/2gx²/u²cos²θThis equation is similar to Standard equation of parabola y = ax² + bx + c her, a, b and c are constantSo, A projectile motion is parabolic motion | |
| 10439. |
Spring block system - conservation of mechanical energy |
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| 10440. |
Which is largest au light year parsex |
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Answer» Parsec Have a look on ur question first |
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| 10441. |
State and explain Newton third law of motion |
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Answer» Then why asking The Newton\'s third law of motion states that every action has an equal and opposite reaction that can be explained by there should be two objects that are equal in magnitude and opposite in directions and that are similar in nature like the two forces are friction or normal reaction or tension Every action has an equal and opposite reaction. In each and every action there is equal and opposite reaction I know every action has equal and opposite reaction according to newton third law of motion the action on an object is always equal and opposite to the object |
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| 10442. |
Torque explanation |
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Answer» Force perpendicular to the time. Used or said as torque. Troque it is vector product Perpendicular to force and time It is represented by toau |
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| 10443. |
Constant whose dimensions are same as angular momentum |
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Answer» Plank constant.....i guess Why transpiration is known as evil necessory |
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| 10444. |
Equations of rotational motion. |
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| 10445. |
What is the value of A×A? |
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Answer» 0 It\'s 0 A^2 . A^2 |
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| 10446. |
Difference between kinematics and dinematic |
| Answer» First read the sentence or que that u ask n correct it.. | |
| 10447. |
Why steel is more elastic then rubber |
| Answer» Elasticity is the capability of an object to return to its former shape once a load inducing strain is removed. If you were to drop a steel ball on a very hard surface, it would probably bounce higher than that of rubber. If you drop it on a softer surface, because it would deform less, then the surface it is to bounce off will be the one deforming, so the bounce would be a function of the elasticity of the floor, not of the ball.A strand of silk is indeed stronger than a steel wire of the same diameter. The reason is that metal uses metallic bounds which is not as strong as the covalent bounds in a macro-molecule like the ones in silk. This also explains why Kevlar, carbon fiber, and carbon nanotubes are also stronger than steel.Youngs Modulus of steel is more than youngs modulus of rubber. | |
| 10448. |
445 |
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| 10449. |
Q. Is How to complete physics. |
| Answer» By practice | |
| 10450. |
prove 2nd law of newton is real law |
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Answer» Fake law And prove of third law First law is contained in the second law.According to Newton\'s second law of motion force acting on a body is given by F=maIn absence of any external force F=0 0=ma a=0/m=0 (m is not equal to zero) |
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