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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.
| 7851. |
Five units of pressure |
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Answer» Atm. Bar Pascal ????? Dyne/square centimetre2.torr 1.pascal2.N/m23.kg/(m.s2)4.J/m35.psi |
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| 7852. |
Current is which quantity? |
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Answer» Tensor quantity becz it doesn\'t follow law of vector addition Scaler quantity ...... Scalar quantity, because that direction is not accounted. |
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| 7853. |
Name the unit to measure size of a nucleus and express it in metre |
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Answer» We also use nanometer 1nm=10^-9m In micrometer |
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| 7854. |
Concept of pseudoforce???? |
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Answer» As the word tells you False force. Where pseudo means False. This force has no origin. It come to play when there is a need for a turning (frictional) force i.e. static force it is because a vehicle cannot suddenly as we when ride it, from that moment there is disturbing force that force is inertia which will not allow you take turn properly due it\'s tendency to resist that\'s we need friction but the force which caused by inertia to resist to take turn is called \'PseudoForce\'. A fictitious force , called a pseudo force is an apparent force that acts on all masses whose motion is described using a non-inertial frame of reference, such as a rotating reference frame.For example if the person inside the accelerating car is looking at the person standing at the bus stop, he finds that the person is accelerating with respect to the car, though no force is acting on it. Here, the concept of pseudo force is required to convert the non-inertial frame of reference to an equivalent inertial frame of reference. |
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| 7855. |
nth displacement of the particle,if n=2,u=m/s,a=4m/s |
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| 7856. |
Distance - time graph means and examples ???? |
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Answer» Distance-time gives velocity and area under velocity -time graph gives distance Distance time graph represent the speed of an object. The velocity is it\'s speed in a particular direction |
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| 7857. |
What is meant by weightlessness????? |
| Answer» The phenomenon of "weightlessness" occurs when there is no force of support on your body. When your body is effectively in "free fall", accelerating downward at the acceleration of gravity, then you are not being supported.The term zero gravity is often used to describe such a condition. | |
| 7858. |
What is parabolic equations ?????and give one example |
| Answer» A parabola is a graph of a quadratic function, y = x2,Equation of Parabola :- The equation used is the standard equation that has the form (y - k)2 = 4a(x - h)where h and k are the x- and y-coordinates of the vertex of the parabola and a is a non zero real number (in this investigation we consider only cases with positive a). | |
| 7859. |
Example of newton 2nd law of motion |
| Answer» Examples are already in your physics refresher | |
| 7860. |
The mass of object on moon is 10 kg. What is its mass on earth |
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Answer» Constant Mass of object remains |
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| 7861. |
Can a quantity have neither units nor dimensions |
| Answer» These are dimensiobless quantity but some have unit | |
| 7862. |
Q-1:- What is angular acceleration? |
| Answer» Change in angular velocity w . r. t time | |
| 7863. |
What is force and explain brief and also formula and its units? |
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| 7864. |
A particle move in a circular path with decrease speed what happen to it\'s angular momentum |
| Answer» When the speed decreases the magnitude of angular momentum decreases but the direction of angular momentum remains unchanged....hope it will help u and if u have any doubt u can ask me again? | |
| 7865. |
How to score 95 % in class 12 |
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Answer» Do hard work. Study well in 11 then do same in 12 |
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| 7866. |
What is instantaneous |
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Answer» Just at a point When a car is moving with variable speed at an instant of time it\'s speed will be uniform throughout At an instant |
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| 7867. |
What is differentiation of whole under root √(1+x^2) |
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| 7868. |
If K.E of a body increase by 300℅ then percentage increase by momentum is?? Please tell me in detail |
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Answer» How Percentage increase in momentum is 100/ |
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| 7869. |
What is the intigretion of √x+1/√x |
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| 7870. |
Parallel and perpendicular axes theorum |
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| 7871. |
When can an object considered as a point object |
| Answer» An object considered as a point object when it travels large distance as compare to their own size | |
| 7872. |
Why is it easy to pull a land mower than to push it And please answer... I really need it |
| Answer» When push effective friction=u (W+Fsin○) and when pull effective friction=u (W-Fsin○) | |
| 7873. |
Does the magnitude of quality change with change in the system of units? Give reason |
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| 7874. |
b=(vt)2 |
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| 7875. |
What is a vector? |
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Answer» Thank you very much Bharti.? Having magnitude and direction both. |
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| 7876. |
Formula of torque |
| Answer» T=f×r | |
| 7877. |
Basic formula of torque |
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| 7878. |
What is the energy possessed by a stationary object lying on the ground |
| Answer» Potential energy | |
| 7879. |
Dimensional analysis of fifteen page |
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| 7880. |
what are three type of motion |
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| 7881. |
I want to know about torque and numericals on torque and angular momentum |
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| 7882. |
The angle which a vector i+j+root2k makes with X, Y and Z axis is respectivel |
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| 7883. |
Why brackets use in Dimensional formula in physics?e.g area- [L^] |
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| 7884. |
Intigretion of √x+1/√x |
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| 7885. |
Intigretion of x^(-3/2) |
| Answer» -2x^(-1/2) | |
| 7886. |
Give some ideas of working model of physics |
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Answer» Hydroelectricity You can made a project related to solar energy |
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| 7887. |
Example of constant speed but variable velocity |
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Answer» Uniform circular motion Circular motion |
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| 7888. |
Derivations |
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| 7889. |
Can one give a normal force more than its weight to ground |
| Answer» Yes, if an external force is acting on the body then normal reaction is greater than it\'s weight like in case of pushing lawn roller (R=W+Fsin○) | |
| 7890. |
Uniform circular motion derivation |
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| 7891. |
what is parallagoram law |
| Answer» It states that if two vectors A&B in such a way that they represent any two adjacent sides of the //gm both in magnitude as well as in direction starting from the same point then their resultant is given by the diagonal of the //gm both in magnitude as well as in direction starting from the same point. | |
| 7892. |
Can two opposite vector cancel?? |
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| 7893. |
How many of you are going to fail in physics in first term exam.....??????? |
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| 7894. |
Which stream have maximum job scope ???ArtsScienceCommerce |
| Answer» Commerce | |
| 7895. |
What are conservative forces |
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Answer» In conservative force we need only path. A conservative force is a force where the work done in moving a particle between two points is independent of the taken path. If a particle travels in a closed loop, the net work done (the sum of the force acting along the path multiplied by the displacement) by a conservative force is zero. A conservative force is dependent only on the position of the object.Examples:gravitational force, spring force, magnetic force. |
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| 7896. |
Example of inertial and non inertial |
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| 7897. |
Is it necessary that the center of mass of a body should always lie inside the body? |
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Answer» No centre of mass of a body not always lies inside the body for example when you bent your upper body forward your center of mass shifts from inside the body in forward direction which implies com is not always lies inside body No it is not necessary .....it may lie outside of the body |
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| 7898. |
In a velocity time graph,what the area under acceleration and time defines? |
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| 7899. |
Unusual water topics |
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| 7900. |
What is the effect of gravity .. positive or negative |
| Answer» In upward direction it is negative and in downward direction it is positive | |