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.
| 6051. |
What is pressure energy |
| Answer» Pressure energy is the energy stored in a fluid due to applied pressure. | |
| 6052. |
What is poisson\'s ratio |
| Answer» The ratio of decrease in the lateral measurement to the increase in the length in a material that is elasticaly stretched is known as poison\'s | |
| 6053. |
Rotational motion |
| Answer» Rotational motion is a motion around an object\'s centre of mass where every point of the body moves in a circle around the axis of rotation. | |
| 6054. |
Gravitational |
| Answer» | |
| 6055. |
what do you mean by surface tention |
| Answer» Surface tension is the elastic tendency of a fluid surface which makes it aquire least surface area . | |
| 6056. |
Is axis of rotation is independent to centre of mass |
| Answer» Yes axis of rotation is independent of centre of mass(Rcm) but is dependent on external force applied on the object | |
| 6057. |
full form of UNICEF..... |
| Answer» United Nation International Children Emergency Fund | |
| 6058. |
A particle is fired vertically upward with 15 km/s with what speed its move in space? |
| Answer» | |
| 6059. |
What is the difference between bulk modulus Young\'s modulus and modulus of rigidity |
| Answer» Young modules is the ratio of normal stress to longitudinal straightBulk modulus is the ratio of normal stress to volumetric strain | |
| 6060. |
What is Kelvin plank staemeny |
| Answer» | |
| 6061. |
Whats difference between inertial and non inertial frame of reference?? |
| Answer» \tThe main difference between inertial and non-inertial is the application of Newton\'s first law of motion If the first law of motion is applicable then that frame is called Inertial frame of reference and if not applicable then that frame is called as non-inertial frame of reference.\tInertial frame has no acceleration with respect to ground, while non inertial has some acceleration w.r.t. ground.Inertial Frame of Reference: Inertial frames are ones which are at rest or moving with uniform velocity with respect to fixed stars. For an observer in such a frame of reference Newton\'s second law of motion is valid.Ex: A train moving with uniform velocity is an inertial frame.Non Inertial Frame of Reference: A non inertial frame is one which is accelerated ( linearly or due to rotation) with respect to fixed stars. Newton\'s second law of motion is not valid in such a frame of reference, unless we introduce a force called pseudo - force.Ex: A freely falling elevator may be taken as a non inertial frame.\xa0 | |
| 6062. |
find the time period of meeting of minute hand and second hand of clock |
| Answer» | |
| 6063. |
Why in the center of Earth the gravity is zero? |
|
Answer» Because there distance is 0 Because force is acting from all direction |
|
| 6064. |
what is relation between relative speed and angular velocity |
| Answer» v=wr | |
| 6065. |
Ma cm=F |
| Answer» Rcm = m1r1+m2r2+---+mnrn/m1+m2h---m3Rcm=m1r1+m2r2+---mnrn/MWHERE M IS MASS OF THE SYSTEM Mrcm=m1r1+m2r2+----mnrnMd(rcm) /dt=m1dr1/dt+m2dr2/dt+---mndrn/dtMvcm= m1v1+m2v2+-----mnvnMdvcm/dt= m1dv1/dt+mdv2/dt+---mndvn/dtMacm= m1a1+m2a2+---mnanMacm=f1+f2+----fnMacm = f | |
| 6066. |
Mv cm=p |
| Answer» | |
| 6067. |
Why the air pressure in tyres of the vehicles kepts in equal pressure |
| Answer» | |
| 6068. |
what is radial acceleration |
| Answer» Acceleration which line of action passes through center | |
| 6069. |
If the kinetic energy of a particle increases by 125%, then what is the % increase in its momentum? |
| Answer» firstly you find relation b/w k. Es then you got relation b/w momentum(p) and %increase in p=p2_p1/p1*100and then you find answer i. e. 50% | |
| 6070. |
What is meant by STOPPING DISTANCE? |
| Answer» The distance travelled between the time when someone decides to stop a vehicle moving, and the time when the vehicle completely stops.The stopping distance depends on several factors, including the road surface and the driver\'s reflexes.To be a safe driver you need to understand the factors that affect a car\'s stopping distance. The stopping distance depends on two factors:Thinking distance - It takes time for a driver to react to a situation. During this reaction time the car carries on moving. The thinking distance is the distance travelled in between the driver realising he needs to brake and actually braking.Braking distance - The braking distance is the distance taken to stop once the brakes are applied.stopping distance = thinking distance + braking distance | |
| 6071. |
EXPLAIN DISSIPATION OF ENERGY. |
| Answer» Dissipation of energy is a process in which energy is used or lost without accomplishing useful work, as friction causing loss of mechanical energy.It is the result of an irreversible process that takes place in homogeneous thermodynamic systems. A dissipative process is a process in which energy (internal, bulk flow kinetic, or system potential) is transformed from some initial form to some final form.The capacity of the final form to do mechanical work is less than that of the initial form. For example, heat transfer is dissipative because it is a transfer of internal energy from a hotter body to a colder one.The loss of kinetic energy of moving water due to internal turbulence, bottom friction, large rocks, debris, or other obstacles that impede flow. | |
| 6072. |
what is bernaullie theorem? |
| Answer» Bernoulli theorem states that the total mechanical energy of the flowing fluid, the gravitational potential energy of elevation, and the kinetic energy of the fluid motion remains constant. | |
| 6073. |
How do internal force sum up to zero |
| Answer» Bcoz f12 is equal to -f21 so they cancel each other | |
| 6074. |
What is inelastic oblique collision |
| Answer» | |
| 6075. |
why q+w state function |
| Answer» | |
| 6076. |
Why there is no atmosphere on Moon ? |
| Answer» There escape velocity is less than earth were earth has 11.2km/s where as moon has 2.3 km/s | |
| 6077. |
Is the radius of gyrartion of a body constant quantity |
| Answer» | |
| 6078. |
what is stefan boltzman law? |
| Answer» Stefan-Boltzmann laws tates that the total radiant heat energy emitted from a surface is proportional to the fourth power of its absolute temperature. The law applies only to blackbodies, theoretical surfaces that absorb all incident heat radiation. | |
| 6079. |
Water and air which is more elastic? Why |
| Answer» | |
| 6080. |
Acceleration due to gravity below and above the surface of earth derivation |
| Answer» | |
| 6081. |
What is orbital frequency in a shell? |
| Answer» | |
| 6082. |
Derive the equation of rotational kinematics. |
| Answer» | |
| 6083. |
What is superposition |
| Answer» | |
| 6084. |
Why is glass brittle while brass is not? |
|
Answer» Their atomic structure as glass is amophrus and brass is not and amophorus solids are brittle and crystals not Because fracture point(E) is far way from ultimate strength (D) of brass compared to glass |
|
| 6085. |
Why does a railway track have a particular shape like I? |
| Answer» | |
| 6086. |
Derivation of strokes law? |
| Answer» | |
| 6087. |
What is meant by motion? |
| Answer» An object is said to be in motion if it change its position with respect to time and it\'s reference point. | |
| 6088. |
Why the stars twinkle |
| Answer» Cause of atmospheric refraction .(for further query refer to ur class 10 textbook. ) | |
| 6089. |
Newton law of motion first law practicle examples. |
| Answer» | |
| 6090. |
What is cannot heat engine |
| Answer» | |
| 6091. |
Simple harmonic motion |
| Answer» | |
| 6092. |
Which is the best channel on YouTube to study physics concepts |
| Answer» | |
| 6093. |
Why pressure is a scalar quantity |
| Answer» pressure does not depends upon the direction So it is a scalar | |
| 6094. |
What is streamline ? |
| Answer» When a liquid flows such that each particle of the liquid passing a given point moves along same path & velocity as its predecessor. | |
| 6095. |
Speed of efflux: torricelli\'s law |
| Answer» Speed of efflux= √2gh= speed of a free falling body | |
| 6096. |
What is difference between viscus drag and friction |
| Answer» | |
| 6097. |
Why birds are often seen to swell their feather in winter season? |
| Answer» | |
| 6098. |
In which method of heat transfer does gravity not play any part? |
| Answer» Radiation | |
| 6099. |
What is accelration |
| Answer» | |
| 6100. |
Find center of mass for alphabetic letters |
| Answer» | |