InterviewSolution
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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.
| 301. |
what is the derivation of projectile motion |
| Answer» | |
| 302. |
Can I get video solutions of ch 2 text back exercise |
| Answer» Search in YouTube... | |
| 303. |
Can a body is said to be rest as well as motio at a same time. |
| Answer» Thax<br>Yes<br>Take as a example when a man is sitted in the train and the train is running at that time then the man is said to be in rest in inside the train but if any men look you then you are in motion<br>Yes<br>No | |
| 304. |
Which of the following has the highest number of significant figures |
| Answer» Question is incomplete ? | |
| 305. |
Differentiation of √x+1/√x |
| Answer» 1/2× x^-1/2+ -1/2× x^-3/2 | |
| 306. |
What are the scopes of physisc |
| Answer» Physics is the study of energy, matter, and their interactions. It\'s a very broad field because it is concerned with matter and energy at all levels—from the most fundamental particles of matter to the entire universe. | |
| 307. |
Why we need units?? |
| Answer» SI units are important because they are common to the people of the entire world, so that people from different countries can communicate with each other conveniently regarding business and science. | |
| 308. |
What we do to correct an equation:m - m0/(1-v^2)^1/2 |
| Answer» We will put c (constant value) in the denominator of v to get the whole denominator dimensionless and hence it will be dimensionally correct. | |
| 309. |
Define resultant vector |
| Answer» A resultant vector is the combination of two or more single vectors. | |
| 310. |
What is the speed of expansion of space-time? |
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| 311. |
Capacitans |
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| 312. |
Write about fundamental forces in nature |
| Answer» The forces which we see in our day to day life like muscular, friction, forces due to compression and elongation of springs and strings, fluid and gas pressure, electric, magnetic, interatomic and intermolecular forces are derived forces as their originations are due to a few fundamental forces in nature.A few fundamental forces are:\tGravitational Force: It is the force of mutual attraction between any two objects by virtue of their masses. It is a universal force as every object experiences this force due to every other object in the universe.\tElectromagnetic Force: It is the force between charged particles. Charges at rest have electric attraction (between unlike charges) and repulsion (between like charges). Charges in motion produce magnetic force. Together they are called Electromagnetic Force.\tStrong Nuclear Force: It is the attractive force between protons and neutrons in a nucleus.It is charge-independent and acts equally between a proton and a proton, a neutron and a neutron, and a proton and a neutron. Recent discoveries show that protons and neutrons are built of elementary particles, quarks.\tWeak Nuclear Force: This force appears only in certain nuclear processes such as the β-decay of a nucleus. In β-decay, the nucleus emits an electron and an uncharged particle called neutrino.This particle was first predicted by Wolfgang Pauli in 1931. | |
| 313. |
What do you mean by physical quantity |
| Answer» Physical properties that can be quantified is known as physical quantity.For example:- mass, weight ,volume,distance,displacement,etc | |
| 314. |
Convert 45km/min² to m/s² using formula n¹u¹=n²u² |
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| 315. |
Find fractional error in z is equal to A cube B power 4 ÷CD1/2 |
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| 316. |
If a=1/: b=2/:c=5/: then calculate /:error in y where (I) y=a2under root b divide c1/3 |
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| 317. |
If m=(2+-0.01)kg,,g=(10+-0.02)m/s and h=(5+-0.01)m then calculate potential energy of the object |
| Answer» P. E =17+_0.04joules | |
| 318. |
1 parsec = ?m |
| Answer» 3.06 ×10raised power 16<br>1p = 3.086×10 to the power 16<br>1 nanometer (1/1000000000) | |
| 319. |
Write 5 examples of based on conversion of units |
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| 320. |
Which of the following are not a unit of time A=secondB=parsecC=yearD=light year |
| Answer» Parsec | |
| 321. |
Relate science with technology |
| Answer» | |
| 322. |
Wha iis reductionism |
| Answer» Reductionism is deriving the properties of a bigger, more complex, system from the properties and interactions of its constituent simpler parts. | |
| 323. |
What is relative velocity.. |
| Answer» total displacement travelled by total time.. | |
| 324. |
What is the relationship with other physical quantities of velocity |
| Answer» Velocity= displacement/ time= [ L /T¹ ] | |
| 325. |
Pressure=Ae^-af/kt/BDimension of B |
| Answer» | |
| 326. |
Mention different types of systematic errors and give examples |
| Answer» The systematic errors are those errors that tend to be in one direction, either positive or negative.Systematic error can be categorised into:i) Instrumental errors that arise from the errors due to imperfect design or calibration of the measuring instrument, zero error in the instrument, etc.ii) Imperfection in experimental technique or procedure - External conditions (such as changes in temperature, humidity, wind velocity, etc.) during the experiment may systematically affect the measurement.iii) Personal errors that arise due to an individuals bias, lack of proper setting of the apparatus or individuals carelessness in taking observations without observing proper precautions, etc. | |
| 327. |
Derive a displacement time graph for constant accleretion. |
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| 328. |
The resistors of resistances R1 =100 |
| Answer» | |
| 329. |
Nest book for physics |
| Answer» Sl arora<br>Topper learning<br>Sl arora<br>Errorless physics | |
| 330. |
Hydraulic brakes |
| Answer» | |
| 331. |
What is the dimensional formula of conductivity |
| Answer» M-1L-2T3A2 | |
| 332. |
Find out the relation between light year and astronomical unit |
| Answer» the relation between light year and astronomical unit is that:1light year=6.3×10^4A.U | |
| 333. |
scope and experment |
| Answer» | |
| 334. |
Show that the working of a sting is based on parallelogram law of vector addition |
| Answer» | |
| 335. |
If A vector + B vector = A vector = B vector ,then angle between A vector and B vector |
| Answer» 120°<br>Null vector | |
| 336. |
If A vector = ^i + j^ +k^ and B vector= 2i^ +j^ (A ) A vector . B vector (B) A vector × B vector |
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| 337. |
What are the x and y components of a 25 m displacement at an angle of 210° with x- axis (clockwise) |
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| 338. |
the dimension covered by an object is given by x=a+bt^2.Find the dimension of a and b. |
| Answer» please do as process wise<br>bt i need process naa...not directly as you have done here<br>A=metreB=metre per second square | |
| 339. |
Ncert solution of chapter 1 |
| Answer» See in the app..<br>Check NCERT solutions here : https://mycbseguide.com/ncert-solutions.html | |
| 340. |
Project on law of conservation of angular momentum |
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| 341. |
Project on thermodynamics |
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| 342. |
Check correctness of eqn s= ut+1/2at^2 |
| Answer» | |
| 343. |
Calculate the current in the 3 ohm resistance from s.chand class 12 |
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| 344. |
How units came into existence |
| Answer» The first practical realisation of the metric system came in 1799, during the French Revolution, when the existing system of measures, which had become impractical for trade, was replaced by a decimal system based on the kilogram and the metre. | |
| 345. |
Important notes ofchap 2 plz |
| Answer» Tanks for your advice and i also check revision notes but this notes was not suitable for me<br>Check revision notes here : https://mycbseguide.com/cbse-revision-notes.html | |
| 346. |
The vector sum of the forces of 10N and 6N is |
| Answer» Question:\xa0The vector sum of the forces of 10N and 6N can be(a) 2N(b) 8N(c) 18N\xa0(d) 20NMaximum resultant of vectors = 10 + 6 = 16 NMinimum resultant of vectors = 10 - 6 = 4 NForce should lie in between maximum and minimum resultant of vectors.The force must lie between the range of maximum and minimum resultant of these vectors .In option (a) , 2N ‹ 4N\xa0In option (b), 4N ‹8N ‹16N , it lies between the range So, this is correct answer.\xa0In option (c) 18N › 16N\xa0In option (d) 20N›16N\xa0Hence, option (b) is correct.\xa0 | |
| 347. |
There are three vector in |
| Answer» Can you define it also<br>Space | |
| 348. |
If a×b vector =b×a vector. Then the angle b/w a and b vector |
| Answer» 0<br>O or π | |
| 349. |
Can you explain what is strong nuclear force |
| Answer» These force acting between proton-proton ,proton-neutron,&neutron-neutron.1] It is the strongest force.2] It\'s relative strength is 1.3] It\'s range is very short. | |
| 350. |
How to do scientific notations |
| Answer» | |