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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your Class 11 knowledge and support exam preparation. Choose a topic below to get started.
| 351. |
Cgs, fps and mks system of units. |
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| 352. |
Importance of Mathematics in Physics. |
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| 353. |
Definition of 1 minute |
| Answer» 1 minute is a period of time equal to 60 seconds; one sixtieth of an hour. | |
| 354. |
Definition of 1cm |
| Answer» A centimetre (international spelling as used by the International Bureau of Weights and Measures; symbol cm) or centimeter (American spelling) is a unit of length in the metric system, equal to one hundredth of a metre, centi being the SI prefix for a factor of 1100. | |
| 355. |
Definition of 1 second |
| Answer» 1 second is the angle subtended by an arc of 1 A.U. when radius of circle is 1Parsec<br>The second (abbreviation, s or sec) is the Standard International ( SI ) unit of time. | |
| 356. |
Potential energy =A underroot x/ x square + Bwhere x is distance |
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| 357. |
Find the angle between the Two vectors A=i^+6j^+3k^,B=-2i^-5j^-4k^ |
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| 358. |
What is geometrical meaning of tan thetha |
| Answer» In right triangle trigonometry (for acute angles only), the tangent is defined as the ratio of the opposite side to the adjacent side. The unit circle definition is tan(theta)=y/x or tan(theta)=sin(theta)/cos(theta). | |
| 359. |
what do you mean ny error? |
| Answer» The deviation of measured valur from the actual value is defined as ereor. | |
| 360. |
Time period depends on mass and force constant |
| Answer» I think its incomplete statement ? | |
| 361. |
What is weak nuclear force? |
| Answer» Example is beta decaying process<br>It Is short range force and appears only in nuclear processes.<br>these are the types of forces that we encounter in both macroscopic world and microscopic world . | |
| 362. |
Find differential coefficient of log x |
| Answer» 1/x<br>1/x | |
| 363. |
Explaination of binomial theorem |
| Answer» The\xa0binomial theorem\xa0(or\xa0binomial expansion) describes the algebraic expansion of\xa0powers\xa0of a\xa0binomial. According to the theorem, it is possible to expand the polynomial\xa0(<i>x</i>\xa0+\xa0<i>y</i>)<i>n</i>\xa0into a\xa0sum\xa0involving terms of the form\xa0<i>a\u200ax</i><i>b</i>\u200a<i>y</i><i>c</i>, where the exponents\xa0b\xa0and\xa0c\xa0are\xa0non negative integers\xa0with\xa0<i>b</i>\xa0+\xa0<i>c</i>\xa0=\xa0<i>n</i>, and the\xa0coefficient\xa0a\xa0of each term is a specific\xa0positive integer\xa0depending on\xa0n\xa0and\xa0b. For example (for\xa0<i>n</i>\xa0= 4),{tex}( x + y ) ^ { 4 } = x ^ { 4 } + 4 x ^ { 3 } y + 6 x ^ { 2 } y ^ { 2 } + 4 x y ^ { 3 } + y ^ { 4 }{/tex} | |
| 364. |
What is a physical unit? |
| Answer» Units used in measuring physical quantities.<br>Which can be mesure directly and indirectly<br>Units used to identify the physical quantity<br>Units used to decide the value of any thing | |
| 365. |
What is a physical unit |
| Answer» The basic mechanical units are those of .All mechanical quantities can be expressed in terms of the three quantities is often known as physical unit.. | |
| 366. |
Write down in vector form |
| Answer» What should I write | |
| 367. |
Discuss the importance of graphical studies of uniform motion open object in one dimension. |
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| 368. |
Should we have to learn dervied. &physical quantites |
| Answer» Yaa it\'s important bcZ it can help us in next chapters<br>Yes<br>Not much importantBut clearing basics of any thing is clearing 20%competition | |
| 369. |
What is cosmic radiation |
| Answer» Cosmic rays are a form of high-energy radiation, mainly originating outside the Solar System[1] and even from distant galaxies.[2] Upon impact with the Earth\'s atmosphere, cosmic rays can produce showers of secondary particles that sometimes reach the surface. Composed primarily of high-energy protons and atomic nuclei, they are originated either from the sun or from outside of our solar system.<br>They r the form of high energy radiations mainly originating outside solar system | |
| 370. |
1st chapter of physics is important? |
| Answer» second chapter is more important than the first<br>Only for school level examination not for competitive exam<br>not, important but we should read it because it contains basic concepts<br>No<br>No | |
| 371. |
What does the slope of position- time graph indicates? |
| Answer» Velocity<br>displacement......?<br>Velocity<br>Velocity or speed<br>Speed | |
| 372. |
Question regarding differentiation on quietient rule |
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| 373. |
4 numericals on deriving a physical relation |
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| 374. |
Formula for turn force ? |
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| 375. |
What is gravitons |
| Answer» Fundamental particles of gravity | |
| 376. |
What is physi |
| Answer» Physics is the study natural science. | |
| 377. |
What is measurement of mass |
| Answer» Kilogram | |
| 378. |
S.I unit of Gravitational constant |
| Answer» Newton<br>Newton<br>The SI UNIT of G is Nm²/kg²<br>Newton | |
| 379. |
Define centripital force using dimensions |
| Answer» Centripetal force is defined as the force required to keep a body moving in a circular path and direct towards the center of a circle.The dimensional formula of centripetal force is [MLT-2]<br>Its formula is f=mv÷r2<br>Its dimention is same as force i.e MLT-2 | |
| 380. |
Derivative of cos6x^-2 |
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| 381. |
What is Horizontal projectile |
| Answer» The horizontal velocity of a projectile is constant (a never changing in value).There is a vertical acceleration caused by gravity; its value is 9.8 m/s, down,The horizontal motion of a projectile is independent of its vertical motion. | |
| 382. |
What is the specific heat capacity of water |
| Answer» One cal. | |
| 383. |
How can we minimize error |
| Answer» \tType of ErrorExampleHow to minimize itRandom errorsYou measure the mass of a ring three times using the same balance and get slightly different values: 17.46 g, 17.42 g, 17.44 gTake more data.\xa0Random errors\xa0can be evaluated through statistical analysis and can be reduced by averaging over a large number of observations.Systematic errorsThe cloth tape measure that you use to measure the length of an object had been stretched out from years of use. (As a result, all of your length measurements were too small.)The electronic scale you use reads 0.05 g too high for all your mass measurements (because it is improperly tared throughout your experiment).Systematic errors\xa0are difficult to detect and cannot be analyzed statistically, because all of the data is off in the same direction (either to high or too low). Spotting and correcting for systematic error takes a lot of care.How would you compensate for the incorrect results of using the stretched out tape measure?How would you correct the measurements from improperly tared scale?\t | |
| 384. |
The zero of vernier scale lies blwn 9.45 and 9.50.if 16 Msd coincide with 20 VSD |
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| 385. |
Derive mirror formula and linear magnification in case of concave mirror producing real image? |
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| 386. |
How to find q if tanq=0.343 |
| Answer» q = tan-1(0.343)q = tan-1(tan(18.932°))q =\xa018.932° | |
| 387. |
how to solve problems of maxima minima |
| Answer» \tFind the derivative of the function.\tSet the derivative equal to 0 and\xa0solve\xa0for x.\tPlug the value you found for x into the function to find the corresponding y value. This is your\xa0maximum\xa0or minimum point. | |
| 388. |
3.0 metre per second square is equal to how much km per hour sqare |
| Answer» 3 Meters Per Second Squared to Kilometers Per Hour Squared = 38880 | |
| 389. |
The heart beat once in 0.8s.Find the number of times the heart beat in the life of 60 years of a man |
| Answer» what is actually chemical?<br>As , 60 years = 60× 365 = 21900 days21900 days = 21900 × 24 = 525600 hr525600 hr = 525600 × 60 = 31536000 min\xa031536000 min = 31536000 × 60 =1892160000 secAs, givenIn 0.8 sec ,no. of time heart beats = 1In 1892160000 sec, no. of time heart beats = 1 × 1892160000 /0.8 =2365200000\xa0<br>2.37 into 10 power 9 | |
| 390. |
All formulas of differntiation |
| Answer» Try checking them here :\xa0<a href="https://mycbseguide.com/cbse-revision-notes.html">https://mycbseguide.com/cbse-revision-notes.html</a> | |
| 391. |
Concept of relative velocity |
| Answer» If two objects are moving in parallel their relative velocity can be calculated. For example, two cars are moving in the same direction along a road. Car A is travelling at +30 m/s and Car B is travelling at +20 m/s. Their relative velocity is 30 – 20 = +10 m/s. | |
| 392. |
What is a relative velocity |
| Answer» The vector difference between the velocities of two bodies : the velocity of a body with respect to another regarded as being at rest | |
| 393. |
Dimensional formula of density |
| Answer» Dimensional formula of Density is [ML-3T0] | |
| 394. |
What is axle vectors |
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| 395. |
Principal of parallel plate capacitor |
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| 396. |
All formulas of fundamental forces |
| Answer» Bhai bhot sare h message nahi kr skte so plz see google<br>Hey bhai refer Google . It\'s a best option<br>I don\'t | |
| 397. |
what is zero error? |
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| 398. |
Which book is best to prepare for IIT and jee exam |
| Answer» S.L. Arora<br>NCERT | |
| 399. |
What is errer |
| Answer» error<br>Nice | |
| 400. |
Numerical related to average speed and average velocity |
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