Saved Bookmarks
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.
| 4551. |
Obtained and expression the time period of pisten |
| Answer» | |
| 4552. |
Diffrencial equation for s.h.m |
| Answer» d²y/dt² +w²y =0 is the diffrential equation for S. H. M | |
| 4553. |
What is universal gravitational law? |
|
Answer» A body attracts towards the earth from infinity distance in called universal gravitational law.In other words the attraction between two body is called universal gravitational lawUnit-6.67×10–11 Nm²/Kg² Newton\'s law of universal gravitation is usually stated that every particle attracts every other particle in the universe with a force which is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers. |
|
| 4554. |
What are the principales of conservation of angular momentum |
|
Answer» According to the law of conservation of angular momentum if the total external torque on a system of particle is zero then the total angular momentum of the system is conserved i,e remains constant is equivalent to three scalar equationLx = k1 , Ly= k2, Lz= k3 hear k1 K2 and K3 are constant x y z are component of total angular momentum vector L along the x y z Axis respectively. Principle of conservation of angular momentum states that, If no external torque acts on a system, the total angular momentum of the system remains constant. If I be the moment of inertia of a body about a given axis of rotation and w be its angular velocity, then I w = constant. When objects collide without a net external torque, the angular momentum is constant. The two objects exert equal, but opposite angular impulses upon each other to maintain the total angular momentum of the colliding system. |
|
| 4555. |
What is stefan law |
| Answer» Stephen\'s law states that the amount of heat energy imitate per second in per unit area of a perfectly black body is directly proportional to the 4th power of absolute temperature.E∞T⁴ | |
| 4556. |
Derive KTG equation and also derive RME of ideal gas |
| Answer» | |
| 4557. |
Trolley type question |
| Answer» | |
| 4558. |
Derived barnoulli theorm |
|
Answer» Search at doubt nut app Search in Google. Search at google bro |
|
| 4559. |
Motion of slope |
| Answer» Hey mate yur ques may be incomplete...plzz check it again.. | |
| 4560. |
What we use unit vector? |
|
Answer» To find direction A unit vector is a vector of unit magnitude and a particular direction. They specify only direction. They do not have any dimension and unit. To find direction |
|
| 4561. |
Describe Brownian motion |
|
Answer» The zigzag movement of particles “Brownian motion refers to the random movement displayed by small particles that are suspended in fluids. It is commonly referred to as Brownian movement”. This motion is a result of the collisions of the particles with other fast-moving particles in the fluid. Yes correct It is more friendly to me But still i say WhatsApp is better for me This app is only usefull for board exam not for IIT JEE Main and Advance. No idea |
|
| 4562. |
What is hoar Frost? |
|
Answer» Deposit of ice crystals on object exposed to free air. Hmm Stay cool ? ? U better know kilo Joule or Joule per Kelvin ? Peta nahi kya hai? |
|
| 4563. |
First equation of motion |
|
Answer» v=u+atWhere, v=final velocity u=initial velocity a=accelerationt=time v=u+a t is first equation |
|
| 4564. |
Newtons first, second and third law defination |
|
Answer» Ist law of newton- a body at rest will reamain at rest unless or untill any external force applied on it..2nd law of newton- the net force experienced by the body is directly proportional to chng in momentum.. 3rd law of newton- every action has equal and opposite reaction... Newton’s first law of motion states that “A body at rest or uniform motion will continue to be at rest or uniform motion until and unless a net external force acts on it”.According to Newton’s second law of motion, the net force experienced by a body is directly proportional to the rate of change of momentum of the body.According to Newton’s third law of motion, for every action, there is an equal and opposite reaction. |
|
| 4565. |
Define emissivity? |
|
Answer» When e=0 the that body is called white body and when e=1 then that body is called black body And it is also measured from 0 to 1 Emissivity is defined as a infrared energy radiated from a body. |
|
| 4566. |
What is torsional pendulum? |
| Answer» It is just an oscillator.. | |
| 4567. |
Poiseuille\'s formula |
|
Answer» I hope....it will help u The Poiseuille’s law states that the flow of liquid depends on following factors like the pressure gradient (∆P), the length of the narrow tube (L) of radius (r) and the viscosity of the fluid (η) alongwith relationship among them. |
|
| 4568. |
Angula momentum of body is defined as a product of 1 |
|
Answer» Moment of linear momentum Position vector (r) * linear momentum (p) But in case of angle it is mass into angular velocity Mass and velocity |
|
| 4569. |
What is a Carnot\'s engine? What is the it\'s efficiency? |
| Answer» Carnot engine\tA Carnot engine is named after Carnot scientist.\tIt is a reversible heat engine operating between two temperatures.\tIt has a maximum efficiency which no other engine can have. | |
| 4570. |
Two turning forks of freq. n\' and n2 produce n beats per second. If n2 and n are known, n\' may be |
| Answer» | |
| 4571. |
To investigate the differant physical quanties and their measure |
| Answer» | |
| 4572. |
Physics sample paper |
| Answer» Visit mycbseguideapp | |
| 4573. |
Simple pendulum time period |
|
Answer» Thank u T=2π/wT=2π√I/mgLT=2π√mL/mgLT=2π√L/g |
|
| 4574. |
What do you mean by elasticity? |
|
Answer» It is the property of the body by virtue of which it regains it initial configurations after removal of deforming force The property of matter by virtue of which it regains its original configuration after removing the deforming force is called elasticity. All objects in nature are elastic and no effects in nature are rigid or plastic. The property of the material by virtue of which it regain its originals shape and size after being stretched or compressed this property of material is called elasticity. |
|
| 4575. |
Hydraulic lift |
| Answer» It is used to lift a heavy load with a small force .it consist of two cylinders A and B of coss sectional area A1 ana A2 connected by a horizontal take pistons are fixed in both cylinders and the ststem is filled with fluid .the load which is to be filled is placed on piston A and force is applied on piston B.If force is applied on piston A,thenP1=f1\\A1Let f2 is the force which acts on pistonB , thenP1=f2\\A1From pascal\'s law p1=p2F1\\A1=f2\\A2=f1\\f2=A1\\A2A1 | |
| 4576. |
Explain the law of floatation??? |
| Answer» It is the case of equilibrium in which generally - Weight of body = upthrust | |
| 4577. |
What is the formula of average velocity |
|
Answer» If acceleration is constant then it\'s final velocity - initial velocity/2 v=(net displacement) /(total time taken )=dx/dt |
|
| 4578. |
In physics exam how many marks objective come |
| Answer» 20 | |
| 4579. |
How many marks objective comes in physics exam |
| Answer» 10 | |
| 4580. |
What is a definition of the gravitational constant |
|
Answer» Bahi vo power 11 h The constant in Newton\'s law of gravitation relating gravity to the masses and separation of particles is equals to the 6. 67 × 10 -7Newton metre square per kg square |
|
| 4581. |
The substance whose specific heat is more than theyare cooledand hot for long time |
| Answer» | |
| 4582. |
Define-Young\'s Modules of elasticity,term compressibility, Poisson\'s ratio. |
|
Answer» Y=3B(1-2 sigma) another Y=2G(1+ sigma) Young\'s Modulus of Elasticity Young\'s Modulus of elasticity is the ratio of longitudinal stress to longitudinal strain.It is denoted by Y.Young\'s Modulus of elasticity is given byy = longitudinal stress to longitudinal strain |
|
| 4583. |
A object is moving from point A to point B what is the work done by gravitational force |
| Answer» | |
| 4584. |
What will be effect on maximum height of a projectile when its angle of projection is changed |
| Answer» maximum height =\xa0{tex} \\frac{ u^{2} sin^{2} \\alpha }{2g}{/tex}for α=30,maximum height =\xa0{tex} \\frac{ u^{2} sin^{2}30}{2g} = \\frac{ u^{2} }{8g}{/tex}for α=60,maximum height =\xa0{tex} \\frac{ u^{2} sin^{2}60}{2g} = \\frac{3 u^{2} }{8g}{/tex}So maximum height will increase\xa0 | |
| 4585. |
Define fluid pressure |
|
Answer» The thrust exerted by a fluid at rest per unit area of the surface in contact with it is called as fluid pressure Pressure It is a measurement of force per unit area on the object in a fluid or on a surface of a closed container. This pressure is exerted by gravity , acceleration or by forces outside the closed container. |
|
| 4586. |
which em wave give preference for the treatment of cancer |
| Answer» | |
| 4587. |
Stereoisomerism??? |
|
Answer» Stereoisomerism refers to “the isomerism that is caused by the non-similar arrangements of atoms or functional groups belonging to an atom in space”. These types of isomers have the same constitutions, but different geometric arrangements of atoms. Stereoisomers can be broadly classified into two types, namely enantiomers and diastereomers. Different arrangement of atom in space. Molecules which have same molecular and steuctural formula but have different arrangement of atom in 3-D space |
|
| 4588. |
Corbol cycal |
| Answer» | |
| 4589. |
What is the difference between ordinary and geostationary satellite |
| Answer» Geostationary satellite is a satellite which looks stationary from the surface.Ordinary satellite looks revovling around the earth. | |
| 4590. |
Pls tell from where I will get sahodya sample papers for revision pls ?tell |
| Answer» I think if you want online then search in Google ..... | |
| 4591. |
Why rain drops fall with same velocity? |
| Answer» When the rain drops fall freely under gravity, their motion is opposed by the viscous drag of air. They attain terminal velocity when the viscous force due to air becomes equal to the weight of the drops. Terminal velocity, v ∝ r2. As radii of rain drops are small, so they do not acquire very high velocity. | |
| 4592. |
I m from ssvm dhurwa school ...where are you from?? |
|
Answer» DPS allahabad I am harsh Oo nice to meet you Kv hasimara |
|
| 4593. |
Physics practical |
|
Answer» Vernier calipers ,screw gauge and pendulum string... Nothing |
|
| 4594. |
Define force? Not its effects. |
|
Answer» An external push or pull which can change the shape or size of the body or also direction of the motion of body An external agent which can change the position of the body is called force. Aur the product of mass and acceleration is called force |
|
| 4595. |
pressure inside a drop and soap bubble derivation |
| Answer» 7033367793 | |
| 4596. |
Given that gor two vectorsAandB,|A*B|=|A_B|fimd the acute angle betweenAandB |
| Answer» | |
| 4597. |
Why electron have negative charge. |
|
Answer» Its not actually a negative charge its only assumed by the scientists to explain their theories Electron have negative charge bcz all electron Of an atom Create a negative charge to balance positive charge of the Protons In the atomic nucleus Electrons are extremely small Compared to all other Parts of an atom |
|
| 4598. |
Defination of SHM |
| Answer» It is a special type of periodic motion in which a particle moves to and fro repeatedly about a mean position under a restoring force which is always directed towards mean position and whose magnitude is directly proportional to displacement of particle from mean position at that instant | |
| 4599. |
Why do gases posses two types of specific heat |
| Answer» | |
| 4600. |
Define Absolute Zero Temperature. |
| Answer» Absolute zero is the lowest possible temperature where nothing could be colder and no heat remains in a substance. 0 kalvin on the kelvin scale which is a thermodynamic (absolute) temperature scale and -273.15 degree celsius on the celsius scale. | |