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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.
| 5851. |
Why is pull easier than push |
| Answer» When we push, a component of force adds to weight and frictional force increases so pull is easier | |
| 5852. |
Define orbital velocity of a satellite |
| Answer» The minimum velocity by which any satellite can revolve in an orbit ,which is around any planet. | |
| 5853. |
Give examples of bodies where centre of mass lies where there is no mass |
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Answer» Hollow sphere Hollow bodies (hollow pipe, hollow cylinder) ring |
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| 5854. |
what do you mean by Coefficient |
| Answer» A number used to multiply a variable. Example: 6z means 6 times z, and "z" is a variable, so 6 is a coefficient. Variables with no number have a coefficient of 1. Example: x is really 1x. | |
| 5855. |
Physics is hard for me |
| Answer» Physic is hard for everyone but one who understand this physic he love it .for my opinion you must understand this subject by heart | |
| 5856. |
What are the difference between translatery motion and rotational motion? |
| Answer» A rigid body moves in a transational motion if it moves on horizontal surface in such a way that every particle of rigid body has same velocity.If a particle of the rigid body moves in a circle with it\'s centre on an axis of rotation then it is called rotational motion...???? | |
| 5857. |
Explain how a ballet dancer varies her speed. |
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| 5858. |
Distinguish between the terms precision and accuracy of a measurement |
| Answer» Difference between measured value and actual value is known as accuracy . For eg . I measured an answer 5kg but actually value is 5.3 kg so accuracy is .3 kgAnd Precision is a difference between two or more measured value .For eg . I measured a value 6m , u measured a value 6.2m then the precision is .2 mGot it or. Not | |
| 5859. |
What is the dimension of equalar acceleration |
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| 5860. |
Stress=4.8×10less to power 7Strain =4×10less to power 4Than calculate the power of y |
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| 5861. |
At |
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| 5862. |
How should I study physics? |
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| 5863. |
Applications of elasticity |
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| 5864. |
Define HOMOGINITY. |
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| 5865. |
Which have higher acceleration sphere,cylinder,or ring |
| Answer» what is the answer of this question | |
| 5866. |
Describe the flow of fluid. |
| Answer» The flow of fluid is depend upon their viscosity , Hydrogen bond present in the fluid , temperature and pressure . | |
| 5867. |
What is stress? Define it. |
| Answer» Stress is measured as the deforming force applied (F) per unit area (A). The SI unit of stress is N/m2 or Pa. | |
| 5868. |
1.5t² + 5t - 84 =0SOLVE IT |
| Answer» d/dt of (1.5t²+5t-84)1.5×2t+5=3t+5 | |
| 5869. |
Write 4 fundamental forces in ascending order of their strength |
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Answer» Wrong 1)Strong force.2) electromagnetism.3)\xa0weak force.4)gravity.Explanation: "•The strong interaction is very strong, but very short-ranged. It acts only over ranges of order 10 − 13 centimeters and is responsible for holding the nuclei of atoms together. It is basically attractive, but can be effectively repulsive in some circumstances. •The electromagnetic force causes electric and magnetic effects such as the repulsion between like electrical charges or the interaction of bar magnets. It is long-ranged, but much weaker than the strong force. It can be attractive or repulsive, and acts only between pieces of matter carrying electrical charge. •The weak force is responsible for radioactive decay and neutrino interactions. It has a very short range and, as its name indicates, it is very weak. •The gravitational force is weak, but very long ranged. Furthermore, it is always attractive, and acts between any two pieces of matter in the Universe since mass is its source. " |
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| 5870. |
Triple point of body |
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| 5871. |
Dare to give answer object which has no mass but non- zero omentumDon\'t use google |
| Answer» Photon | |
| 5872. |
Why does an athlete run before taking a high jump? |
| Answer» An athlete runs before jumping to gain momentum. Because it helps in jumping higher and longer because of inertia of motion gained due to the motion. When the athletes Jump they already have a forward motion that would be greater than that of a jump made from standing in one spot. | |
| 5873. |
Which have more elasticity water or air and why? |
| Answer» Water\xa0is\xa0more elastic\xa0than\xa0air\xa0because bulk modulus of\xa0elasticity\xa0is reciprocal of compressibility and\xa0air\xa0is\xa0more\xa0compressible than\xa0water. | |
| 5874. |
Difference between scales and vector |
| Answer» Scaler have only magnitude and Vector have both direction and magnitude | |
| 5875. |
Describe the low of vector addition |
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| 5876. |
Definition of work energy and power |
| Answer» Work can be defined as transfer of energy. If one object transfers (gives) energy to a second object, then the first object does work on the second object. Work is the application of a force over a distance.Lifting a weight from the ground and putting it on a shelf is a good example of work. The force is equal to the weight of the object, and the distance is equal to the height of the shelf (W= Fxd). Work-Energy. Energy can be defined as the capacity for doing work. The simplest case of mechanical work is when an object is standing still and we force it to move.The energy of a moving object is called kinetic energy. For an object of mass m, moving with velocity of magnitude v, this energy can be calculated from the formula E= 1/2 mv^2.Types of Energy:\xa0There are two types of energy in many forms:Kinetic Energy = Energy of Motion Potential Energy = Stored Energy Forms .Power is the work done in a unit of time. In other words, power is a measure of how quickly work can be done .The unit of power is the Watt = 1 Joule/ 1 second.One common unit of energy is the kilowatt-hour (kWh). If we are using one kW of power, a kWh of energy will last one hour.Calculating Work, Energy and Power WORK = W=FdBecause energy is the capacity to do work , we measure energy and work in the same units (N*m or joules). POWER (P) is the rate of energy generation (or absorption) over time: P = E/t Power\'s SI unit of measurement is the Watt, | |
| 5877. |
What is the formula for bulk modulus of elasticity? |
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Answer» Bulk modulus (K)=-F/A×V/▲V..=-FV/A▲V Ratio of stress to change in volume of a material subjected to axial loading. Related to\xa0Modulus of Elasticity\xa0(E) and Poisson\'s Ratio (r) by the followingequation:\xa0Bulk Modulus{tex}k=\\frac E{3\\left(1-2r\\right)}{/tex} |
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| 5878. |
What is tensor quantity |
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Answer» Tensor quantity are those quantities which have both magnitude and directions but they does not follow vectors law of addition.. Tensors are geometric objects that describe linear relations between vectors, scalars, and other tensors. Elementary examples of such relations include the dot product, the cross product, and linear maps. Vectors and scalars themselves are also tensors. |
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| 5879. |
What is a centre of mass ? |
| Answer» Centre of mass is the point of a rigid body where the whole mass of the body is supposed to be concentrated. ☺☺☺☺ | |
| 5880. |
Explain heart attack and blood flow. |
| Answer» Heart attack occurs when our heart don\'t get sufficient oxygen to function. And blood flow is the movement of blood within the organs for supplying o2 | |
| 5881. |
Explain blood flow and heart attack. |
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| 5882. |
If vector A+vector B= vecto A_vector B ,find the angle between vector A and vector B |
| Answer» A- vector AB- vector B A+B= vector P A-B= vector QP^2 = [A^2 + B^2+ 2ABcosx]-(1)Q^2= [A^2+B^2-2ABcosx] - (2)Given P=Q Therefore, equating both (1)=(2) We get 4ABcosx= 0Now cosx=0Thus the angle between the vectors A, B is x=90 | |
| 5883. |
What are the dimensions of a&b in the relation F = at+bx, where f is force and x is distance? |
| Answer» {tex}\\begin{array}{l}F\\;=\\;a+\\;bx\\\\Since\\;a\\;is\\;connected\\;by\\;addition\\;symbol\\;so\\;a\\;has\\;dimension\\;same\\;as\\;F\\\\\\lbrack F\\rbrack=\\;\\lbrack a\\rbrack\\;=\\;\\lbrack MLT^{-2}\\rbrack\\\\let\\;\\lbrack b\\rbrack\\;=\\;\\lbrack M^xL^yT^z\\rbrack\\\\Again\\;bx\\;has\\;dimension\\;of\\;F\\\\\\lbrack F\\rbrack\\;=\\;\\lbrack b\\rbrack\\lbrack x\\rbrack\\\\=\\;>\\;\\lbrack MLT^{-2}\\rbrack\\;=\\;\\lbrack M^xL^yT^z\\rbrack\\lbrack L\\rbrack\\\\=>\\;\\lbrack MLT^{-2}\\rbrack\\;=\\;\\lbrack M^xL^{y+1}T^z\\rbrack\\\\comparing\\;the\\;powers\\;of\\;M,L\\;and\\;T\\\\x=1\\\\y+1=1\\\\=>\\;y=0\\\\z=-2\\\\so\\;\\lbrack b\\rbrack\\;=\\;\\lbrack M^xL^yT^z\\rbrack=\\;\\lbrack M^1L^0T^{-2}\\rbrack\\;\\\\\\lbrack b\\rbrack=\\;\\lbrack M^1T^2\\rbrack\\end{array}{/tex} | |
| 5884. |
What is rotational analogue? |
| Answer» The\xa0Rotational Analog\xa0to Mass--\xa0The\xa0rotational\xa0motion analogy to inertia is\xa0rotational\xa0inertia (or\xa0rotational\xa0mass), or in very technical language, moment of inertia. With a given net torque, Στ, different objects will experience different\xa0rotational\xa0accelerations. | |
| 5885. |
What is the full form of SHM |
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Answer» simple hormonic motion simple harmonic motion |
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| 5886. |
Why two holes are made empty An oil tin |
| Answer» If only one hole is made in tank then oil comes out a vacuum generated inside tank which sucked the oil inside tank so, oil doesn\'t flow out from tank so two hole built in tank which create equilibrium the amount of oil flow out=amount of gas comes inside due to this vacuum isn\'t created and oil flow smoothly | |
| 5887. |
Derivation of vertical circle |
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| 5888. |
Uses of artifecial satelites |
| Answer» Artificial satellites are built by people and launched by rockets into space, where they orbit around the Earth. These are some of the things that artificial satellites are used for: communications, including broadcastingtelevision programmes\xa0and\xa0relaying telephone calls. | |
| 5889. |
Uses of artifecal satellites |
| Answer» Artifecal satellites are used for many purpose,including communication,navigation,gathering weather information,creating maps and even spying | |
| 5890. |
What is formulae of Motion of car in a banked road |
| Answer» what is formula of banked of road and diffnaction of banked of road | |
| 5891. |
Newton\'s inverse law of gravitation |
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| 5892. |
Show that pulling of lawn roller easier than pushing |
| Answer» In case of pushing a roller, if you resolve the applied force into horizontal and vertical directions, effective weight of the roller increases.On the other hand in case of pulling force, if you resolve the applied force into horizontal and vertical direction, the effective weight of the roller decreases.Thus, we conclude that it is easier to pull a lawn roller as compared to push it. | |
| 5893. |
What is difference between shm and oscillatory motion. |
| Answer» A motion that repeats itself again and again at regular intervals of time is called a periodic motion. All\xa0oscillatory motions\xa0are periodic motions but all periodic motions are not oscillatory. For example, the motion of the moon around the earth is periodic but not oscillatory.A particle is said to execute simple harmonic motion if it’s acceleration is directly proportional to its displacement from the equilibrium position and is always directed towards the equilibrium position. Simple harmonic motion is a straight line motion and it requires a restoring force. | |
| 5894. |
Why is the handle of a screw made wide? |
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| 5895. |
How many times is escaped velocity ,oforbital velocity for a satellite revolving near earth |
| Answer» 2 times | |
| 5896. |
What is frame of reference |
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| 5897. |
Derive the formula v square =4square+ 2as |
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| 5898. |
Can I know about Centripetal and centrifugal forces. How they work? |
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| 5899. |
Plzz explain this su |
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| 5900. |
why does a cricketer lowers his hand while catching a ball? |
| Answer» to increase the frictional force and reduce the acceleration\xa0 | |