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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.
| 10101. |
What is chain rule? |
| Answer» | |
| 10102. |
What is percentage error |
| Answer» Multiply relative error by 100 then u got ur %error or %error may be defined as how much % of error have u done in ur answer | |
| 10103. |
Find the error in mirror formula where v=(5+-0. 05) and u=(10+-0. 01)cm |
| Answer» U should be negative | |
| 10104. |
Define unit ? |
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Answer» an individual thing or person regarded as single and complete but which can also form an individual component of a larger or more complex whole. Units are the standards used to measure the physical quantities A fixed amount or number used as the standard of measurement |
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| 10105. |
Numerical on dimensional formula |
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Answer» Padh lo There are many in the books |
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| 10106. |
Numerical of speed and velocity |
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Answer» If a body covers one third of its distance with the speed of v1 next one third with v2 and last one third with v3 in a particular direction then find out the avg speed Speed and velocity numerical batayo |
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| 10107. |
Change 1min. Into radian |
| Answer» 1 degree = 60 minute1 minute of an arc = 1/60 degree180 degree = pi radian1 degree = pi/180 radiantherefore 1/60 of pi/180 = 1minute0r 1 minute = pi /( 60 .180) radiantherefore 1 min . = 2.9 1.10^-4 radian | |
| 10108. |
Write all formule of all subject? |
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| 10109. |
If the value of 4th standard energy 20 June velocity 5 metre per second find the value of |
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| 10110. |
How is the study of physics related to the study of other science. |
| Answer» Physics is also called "the fundamental science" because the subject of study of all branches of natural science like chemistry, astronomy, geology, and biology are constrained by laws of physics, similar to how chemistry is often called the central science because of its role in linking the physical sciences. | |
| 10111. |
State Lami\'s Theorem |
| Answer» Lami\'s theorem states that, if three concurrent forces act on a body keeping it in Equilibrium, then each force is proportional to the sine of the angle between the other two forces. | |
| 10112. |
Representation of error |
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| 10113. |
State the condition for two vectors to be A part parallel and B part perpendicular to each other |
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| 10114. |
How is the study of Physics useful to the study of other science |
| Answer» Bcouz compare to bio-chem.Physics give us many scope to carrier bright in future | |
| 10115. |
Why should we conside displacement as (x ) but not (s) |
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Answer» Because s stands for distance Because S is distance |
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| 10116. |
Numericals related to error chapter |
| Answer» In the pradeep\'s book | |
| 10117. |
Write the dimension of magnification |
| Answer» Dimensionless | |
| 10118. |
If f=x^2, then what is the relative error in f? |
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| 10119. |
Wht is differentiation and integration? |
| Answer» Differentiation is the essence of Calculus. A derivative is defined as the instantaneous rate of change in function based on one of its variables. It is similar to finding the slope of tangent to the function at a point.The integration of a function f(x) is given by F(x) and it is represented by: | |
| 10120. |
if x=a+b+ctsquare where X in metre and t in second; what is dimension formula of c |
| Answer» VwhH | |
| 10121. |
Is physics paper pattern is change in 2019 20 |
| Answer» Check syllabus here :\xa0https://mycbseguide.com/cbse-syllabus.html | |
| 10122. |
Equations of motion |
| Answer» The three equations of motion are\xa0v = u + at ; s = ut + (1/2) at2\xa0and v2\xa0= u2\xa0+ 2as | |
| 10123. |
What is the definition of dimensions of physical quantities |
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Answer» The dimension of the units of a derived physical quantity may be defined as the number of times the fundamental units of mass, length and time appear in the physical quantity. The dimension of a physical quantity may be defined as the powers (or exponents ) to which the physical quantities must be raised to represent that quantity properly. |
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| 10124. |
What is luminous intensity?Please explain in easy words. |
| Answer» | |
| 10125. |
The force F=at+bt square where t=time ,what are dimensions ofa and b? |
| Answer» As you have Force on Left Hand Side, the right hand side quantities also represent force....so at and bt2 represent force..... but dimensional formula of force is Force: M1 L1 T(-2) so, dimensional formula of at and bt 2 is also M1 L1 T(-2) Means, [aT] = M1 L1 T(-2) \xa0SO, [a] = (M1 L1 T(-2) )/T so [a] = M1 L1 T(-3) \xa0Same way for b, bt2 = force so b= force/t2 = M1 L1 T(-4) \xa0 | |
| 10126. |
Sir please tell me how to study physics to get full marks in boards exam? |
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Answer» \tTold you right you need some luck.\xa0So, Hard-work will take you till 95 for sure.\tGive your preboards with full on preparation as you would do for your boards.\tYou have to get 30 on 30 in your practicals.\tPlease do not make any silly mistakes at the board exam.\tRemember , scoring 100 isn’t a day task, it needs continuous effort and daily practice. Can check on websites and YouTube physics wallah |
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| 10127. |
Chapter-2 Example 2.6 |
| Answer» Sir how to study physics for getting full marks in board exam | |
| 10128. |
Why Higgs Bosons are only present in Boson field? |
| Answer» | |
| 10129. |
What is meant by cofficient of elasticity |
| Answer» Coefficient of elasticity is\xa0the ratio of the applied stress to the change in shape of an\xa0elastic\xa0body. | |
| 10130. |
Hoe many ergs in 1 kilowatt hour |
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Answer» 3.6 *10^6j 1 kilowatt hours =3.6×10^6joule1 joule =10^7ergTherfore 1 kilowatt hour has 3.6×10^6+7=3.6×10^13 Bhai ya pta ha ki 1 erg is equal to 10^7 joule |
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| 10131. |
How will we solve:Modulus of A vector divided by modulus of magnitude of A vector?? |
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| 10132. |
Why gravitational force is the weakest force? |
| Answer» Yes gravitatiin force is weakest in natureComparison Fg:Fw:fe:fn1:10 to the power 25:10 to the power36:10 to the p 38 | |
| 10133. |
What should be the character of scientist |
| Answer» Curious Attentive to the nature and natural phenomenonSo that he could easily notice what is happening in the natureAfter that he should formulate questions Make theory do experiment do predictions If the prediction made are very correct than he might give a law | |
| 10134. |
what do you mean by integration |
| Answer» To integrate means to combine | |
| 10135. |
how many angstorm are there on one metre |
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Answer» 1*10 ki power 1 10 raised to the power 10 angstrom are present in 1 m 10 |
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| 10136. |
on which scientific principle calculators and computer are based? |
| Answer» Modern technology | |
| 10137. |
what are the two basic quests in physics |
| Answer» | |
| 10138. |
Notes on physics related to society and technology |
| Answer» Ncert content is enough .....and nothing comes from this chapter in competition exams | |
| 10139. |
Derive the velocity time relation of body under constant acceleration? |
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Answer» We know for a body under constant acceleration, a=(v-u)/tHence, v=u+at Nahi pata school teacher se pucho |
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| 10140. |
Write properties of scalar and vector product for indirect measurement? |
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| 10141. |
Class 11 refresher all photos |
| Answer» | |
| 10142. |
Cross vector of two product |
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Answer» Nyc sia {tex}\\vec { a } \\times \\vec { b } = | \\vec { a } | | \\vec { b } | \\sin \\theta \\hat { n }{/tex} |
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| 10143. |
What i need to study for the 2nd chapter |
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| 10144. |
what is mathematical procedure to calculate slope of the tangent |
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| 10145. |
on which scientific principle calculators and computers are based? |
| Answer» Binary system | |
| 10146. |
Project on type of errors |
| Answer» It\'s in the ncert itself....... | |
| 10147. |
Which book is best for getting good marks ? |
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Answer» Ncert he 1st class hai For physics ncert + dc pandey/hc verma/ modern\'s abc.....hope it helps ?? |
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| 10148. |
500kgm/ s*s in c. G. S using dimensional analysis |
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| 10149. |
About projectil motion and its expresion |
| Answer» | |
| 10150. |
Vector vs scalar |
| Answer» Scalars are quantities that are fully described by a magnitude (or numerical value) alone. Vectors are quantities that are fully described by both a magnitude and a direction. | |