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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.
| 11551. |
find aunit vector parallel to 4i+3j+6k plssssss...help me |
| Answer» Let the init vector be r^r^=(+-)4i^+3j^+6k^/magnitude of given vector r^=+-[4i^/root61+3j^/root61+6k^/root61] | |
| 11552. |
Differentiate 1/(x)^1/2 |
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| 11553. |
Position time relation in calculus method |
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| 11554. |
pressure is depends on height, density & gravity acceleration. find the relation. class 11 |
| Answer» The hydrostatic pressure \'P\' of a liquid column depends upon the density \'d\' , height \'h\' of liquid column and also an acceleration \'g; due to gravity.Using dimensional analysis, derive formula for pressure P.Density is directly proportional to pressure and indirectly proportional to temperature. ...As pressure increases, with temperature constant, density increases. | |
| 11555. |
1gm cm cube =.........kgmcube |
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| 11556. |
What is relationship between physic, technology and nature |
| Answer» Physics explains and describes natural phenomena. It tells us how different parts of nature work and react to different situations. Technology helps us solve problems and complete tasks by using the world around us.Hope it helps | |
| 11557. |
Which reference book should I prefer for PCM ie physics chemistry and Mathematics |
| Answer» Maths Rd Sharma Chemistry and Physics Pradeep | |
| 11558. |
Dot products numerical |
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| 11559. |
State and explain parallelogram law of vector addition |
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| 11560. |
Derive v²-u²=2as and s=ut+½gt 2 |
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| 11561. |
Write the name of nature of physical law ? |
| Answer» I don\'t know search in google,? | |
| 11562. |
Which law is used to explain rocket propulsion |
| Answer» Newtons 3rd law | |
| 11563. |
The mass of a body |
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Answer» The mass of a body is its inertia or resistance to change of motion. More precisely, it is a property of the body that determines the body\'s acceleration under the influence of a given force. The amount of matter present in a body is referred to as its MASS. |
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| 11564. |
Exercise ka chapter1 ka q no. 1 |
| Answer» cbse guide se kar le | |
| 11565. |
What is the ratio of the time taken to go up and come down by a body thrown vertically up ?? |
| Answer» 1. The upward and downward motion are accelerated and retarded by g. hence v-u/g=t where v is zero for upward motion whereas u is zero for downward motion. | |
| 11566. |
Find the dimensions of force |
| Answer» Unit of force = kg m/s^2. Therefore, dimensional formula = [M] [L] / [T^2] = [MLT^-2]. Dimensions of force are 1 in mass, 1 in length and -2 in time. | |
| 11567. |
What is relation between physics and technology? |
| Answer» In these times technology is observed to rise new physics and at others times physics generate new technology. | |
| 11568. |
Derive displacement and acceleration using uniform circulation motion |
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| 11569. |
Hiii anyone here |
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Answer» find the angle between vectors p=2i+3j-2k q=3i+2j+4kPlease solve Yrr class 11 ki physics sucks!!!??? Good evening deae Hii Yes |
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| 11570. |
draw the graph for different types of motion and explain it in a few words |
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| 11571. |
Dual nature of matter belongs to which chapter |
| Answer» Structure of an atom, chemistry. Wave nature and particle nature. | |
| 11572. |
What is called moderate size |
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Answer» Medium in size Intermediate in size |
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| 11573. |
Calculate the acceleration of 8kg block and 2 kg block |
| Answer» Limited info | |
| 11574. |
Differentiate sin(ax +b) |
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| 11575. |
Find the dc of 2x |
| Answer» 2x dc | |
| 11576. |
What is nth scaler quantity |
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| 11577. |
Write the dimensional formula for. Work, velocity, kinetic energy, pressure, acceleration. |
| Answer» Work = [M L^2 T^-2]. Velocity = [LT^-1]. Kinetic energy = [ML^2T^-2]. Pressure = [ML^-1T^-2]. Acceleration = [LT^-2]. | |
| 11578. |
Conservation ofo |
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| 11579. |
What is electronagativity |
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Answer» Symbolised by X tendency of an atom of given element to attract shared electron when forming chemical bond. Symbolised by X |
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| 11580. |
What are the scientific methods |
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| 11581. |
Motion in plane line |
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Answer» Motion in a plane is called a motion in two dimensions. Its examples are projectile motion, circular motion. For the analysis of such motion, our reference is an origin and two co-ordinate axes viz: X and Y-axis and scalar and vector physical quantities Motion in a plane line |
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| 11582. |
How to find significant figures |
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Answer» 1. All non zeros are significant.i.e, 1753=4(significant figures)2. Zero between two non zeros are significant.i.e, 4035=4(SF)3. Trailing zeros after decimal are significant.i.e, 9.3520=5(SF)4. Continuous zeros are not significant.i.e, 0.00369=3(SF)5. Exact number or without without decimals may becomes infinite.i.e, i) 6.022*10^23=infinite(SF) ii)7845139466=infinite(SF) All non zero no. Are SF |
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| 11583. |
Determination of percentages of water of crystallization in barium chloride |
| Answer» Formula of barium sulphate is BaCl2. 2H2O. Therefore, percentage composition of water = [ Mass of water in the compound / Molar mass of compound ] × 100 = 3600/137 = 26.27 %. | |
| 11584. |
100/tan40° |
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| 11585. |
Dimensions of coeffcient of viscosity are: |
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Answer» ML 1 T 1 Ml-1t-1 F = 6πηrv. Therefore, coefficient of viscosity η = [MLT^-2] / [L] [LT^-1] = [ML^-1T^-1]. // |
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| 11586. |
The speed of a travelling wave important points |
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| 11587. |
Prove that the ratio of constant of linear expansion, areal expansion and volume expansion is 1:2:3 |
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Answer» We know that γ=3α\xa0and β=2α ⟹\xa0α:β:γ=1:2:3 Co-efficient of lineas expansion = d Co-lefficient of area sigma*n = betaco-efficient of Volume expansion : 8 ?We know,beta = 2alpha y = 3alpha.. Therefore ration of d: B: 8 21:2:3 We know that γ=3α\xa0and β=2α⟹\xa0α:β:γ=1:2:3 |
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| 11588. |
Explain the consequences of high specific heat of water |
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| 11589. |
What is reynolds law |
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| 11590. |
What do you mean by SHM |
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Answer» Simple Harmonic Motion (SHM) SHM is the simplest form of oscillatory motion wherein, a body performs to and from motion along a straight line about it\'s mean position, such that acceleration is directly proportional and opposite in direction to displacement. |
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| 11591. |
A block whose mass is 1kg is fastened to a spring. The Spring constant of 50Nm |
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| 11592. |
Any one can explain log |
| Answer» Class 11 physics practical observation of the relationship between frequency and length of a given wire under constant tension using sonometer | |
| 11593. |
A wire is replaced by another wire of same length and material but of twice diameter |
| Answer» So what we need to find | |
| 11594. |
derive the expression for pressure exerted by liquid column class 11 |
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Answer» P ::: hdg Koi h |
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| 11595. |
What is the percentage change in time period if length of pendulum increases by 3% |
| Answer» 1.5 percent | |
| 11596. |
What is differencial eqn for spin |
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| 11597. |
Derive en expenssion of time period of simple pendulam |
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| 11598. |
Dimensionals |
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Answer» These are the physical quantities raise the power of fundamental Ohk MLT What? |
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| 11599. |
Is it possible to have the dot product of the two vector zero when neither of them is a null vector |
| Answer» Yes | |
| 11600. |
Shm |
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Answer» It is special type of periodic motion which can move to and fro repeatedly about a mean postion under a restoring force which is always directed towards the mean position. Simple harmonic MOTION |
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