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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.
| 151. |
What is the definition of physics ? |
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Answer» Physics is brach ofscience Physics is a branch of science deals with the study of nature , natural laws n natural phenomena occuring in the universe. Physics is the study of nature and its natural phenomena. Physics education is the sum of those experience which come to the individual through movement . |
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| 152. |
A v=(20+-1)w and r=(8+-2)ohm find the current with error limits |
| Answer» We know that v=IR then I=V/R. After that, delta i/i = delta v/v + delta R/R . I=V/R = 20/8= 2.5A .AFTER THAT delta i/2.5 =1/20+2/8, delta i/2.5=2+10/40, delta i/2.5 =12/40, delta i= 12× 2.5/40 , then 1.5 /2 , = 0.75A .REPRESENTATION OR ERROR LIMITS : i +- delta i. , 2.5 +_0.75A .Where I/i= current , R= resistance and ,v= volt. Thanks for ask.. | |
| 153. |
A man can swim at speed of 4 km in stikl water |
| Answer» Are question complete to karte ....... | |
| 154. |
What is gravitional force |
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Answer» Every object in the universe attract every other object by a force called as gravititional force It is defined as the force exerted b/w 2 object in universe. Gravitational force = F m¹m²/ r² Where F=force, m¹=mass of 1 object ,m²=mass of 2 object ,r= distance b/w them . 9.8 m/s |
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| 155. |
There are how much types of errors |
| Answer» There r 4 types of errors ....constant error.... Random errors.... System errors... Least count errors... | |
| 156. |
Find the relative error in z ,if z =a4b1/3/cd3/2 |
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| 157. |
What is the relative strength of gravitational force |
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| 158. |
The states of motion and rest are relative. Explain |
| Answer» Are you the classmate of saurabh | |
| 159. |
Which and how many dimensions should i memorisse? |
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Answer» Thx It is important to memorize atleast 20 dimensions which is given in book.... E. g...Force... Pressure... Strain... Velocity... Electric current... Impulse.. Etc... But u can do more as u want... ? |
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| 160. |
If vector A=3icap+2jcap |
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| 161. |
Find height of tower if stone is released and travel 40m in last 2sec |
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| 162. |
Calculate efficiency of a carnot engine working between 110 degree celsus & 10 degree celsus |
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| 163. |
How do apply the correct formula for the question |
| Answer» By reading it properly nd understanding the meaning of every word of question... Nd for that u need to know English words... Hope it helps u little... ? | |
| 164. |
Derivation of a=v^2 /r |
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| 165. |
Explain the motion |
| Answer» Motion is\xa0the action or process of moving or being moved. | |
| 166. |
Difference between centripetal and centrifugal force |
| Answer» Its simpleCentripetal force acts towards the centre of the circular path.And Centrifugal acts outwards. | |
| 167. |
What is seven dimensions of the world |
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Answer» M,l,t,luminous intensity,electric current,amount of substance,temperature Length, Mass, Time, Electric current, Thermodynamic Temperature, Amount of substance and Luminous intensity are the seven dimensions. |
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| 168. |
Why acceleration due to gravity is negative? Explain in trums of direction |
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| 169. |
What is bernolies therom |
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Answer» Bernoulli\'s principle states that an increase in the speed of a fluid occurs simultaneously with a decrease in pressure or a decrease in the fluid\'s potential energy. Pressure exerted by liquid is same in all directions |
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| 170. |
Define planck\'s constant. |
| Answer» Planck\'s constant is a fundamental constant, equal to the energy of a quantum of electromagnetic radiation divided by its frequency, with a value of 6.626 × 10−34 joule-seconds. | |
| 171. |
Which book we will study to gain better marks in physics ... |
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Answer» Refrence book sandip & pradip ka I think pradeep\'s fundamental physics is best |
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| 172. |
What quantity has no unit but dimension |
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Answer» There are many quantity like radian and steradian There is quantity radian and steradian . These are units but no dimensions Radian and steradian There is no such quantity |
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| 173. |
Xsq+5 |
| Answer» x=√5 | |
| 174. |
Question on relative velocity |
| Answer» Give the formula of raltaive velocity with its defination | |
| 175. |
If velocity is equal to 4t³—2t. Find acceleration when displacement is 2m. |
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| 176. |
If pressure p =t2-alpha /beta *alfa then find the dimensions formula of alfa and beath |
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| 177. |
4th law of motion by newton |
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Answer» Newton’s\xa0First Law of Motion\xa0also known as\xa0Law of Inertia\xa0states that every object persists to stay in uniform motion in a straight line or in the state of rest unless an external force acts upon it. In a simpler form, the first law of motion may also be stated as\xa0"If the net external force on a body is zero, its acceleration is zero. Acceleration can be non-zero only if there is a net external force on the body".Newton’s Second Law of Motion\xa0states that force is equal to the change in momentum per change in time. For a constant mass, force equals mass times acceleration, i.e.F = maThus,\xa0{tex}\\vec { F } \\propto \\frac { \\Delta \\vec { p } } { \\Delta t } \\text { or } \\vec { F } = k \\frac { \\Delta \\vec { p } } { \\Delta t }{/tex}, where k is a constant of proportionality,\xa0{tex}\\Delta p{/tex} is the change in momentum and p = mv.Newton’s Third Law of Motion:\xa0It states that "For every action, there is an equal and opposite reaction". 4th law ab tk newton n nhi diya... Newton gya...tum de skte ho...its ur choice...3 hi pdh lo 4th law????? are u searious?\u200d♂️?\u200d♂️ |
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| 178. |
differenciations numericls |
| Answer» Starting from f (x)=d/dx | |
| 179. |
f(x)=sin small x multiply cos small x |
| Answer» f(x) = sinx X cos x 2f(x) = 2 sinx cosx = Sin (2x)Therefore . f(x) = (sin 2x ) / 2 | |
| 180. |
Differentiation f(x)=xcube-7x+5 |
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| 181. |
What is direvation |
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Answer» It is a powwr of dimensions of which fundamental physical quantities are reached as physical quantities Mathematically prove in phycis |
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| 182. |
What is coherrent system of units |
| Answer» coherent system of units is a system of units based on a system of quantities in such a way that the equations between the numerical values expressed in the units of the system have exactly the same form, including numerical factors, as the corresponding equations between the quantit | |
| 183. |
Whst is the law of conservation of energy |
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Answer» Energy can be neither created nor destroyed but it can transform from one form to another Enwrgy can neither be created nor destroyed . Our van be c changed form one being to other Energy cannot distroy, only it transfer from one body to anothet Energy neither be created nor destroyed . Only being transfer Thank u energy can neither be created nor destroyed. Only being transferred |
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| 184. |
Using calculus method drive expression when distance travelled by particle in nth second |
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| 185. |
Define dimension |
| Answer» It is the powers to which the fundamental physical quantities are raised to represent the given physical quantity | |
| 186. |
Give two discoveries of physics used in your daily life |
| Answer» Bulb and themometer | |
| 187. |
Defination of errors |
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| 188. |
Which questions have to be must solved in physics |
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Answer» Numerical +conceptual question Numerical questions |
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| 189. |
When we use integration in any formula |
| Answer» If we want to get the sum of any directional formula then there we use intregation | |
| 190. |
Important Question and answer for chapter 2 and 3 |
| Answer» Ncert questions and sl arora questions are intresting and important tooo..... | |
| 191. |
Chapter 2 example 2.1 ncert |
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| 192. |
calculate angular velocity of hand clock? |
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Answer» \tThe period of the hour hand of clock, T = 12 hours =\xa0{tex}12 \\times 60 \\times 60{/tex}\xa0seconds\tTherefore, Angular velocity of the hour hand of a clock, {tex}\\omega=\\frac{2 \\pi}{T}=\\frac{2 \\times 3.14}{12 \\times 60 \\times 60}{/tex}= 1.45\xa0{tex}\\times{/tex}\xa010-4\xa0rad s-1\tThe period of the second hand of clock, T = 1 minute = 60 seconds\tTherefore,\xa0Angular velocity of the second hand of a clock\xa0{tex}\\omega=\\frac{2 \\pi}{T}=\\frac{2 \\pi}{60}{/tex}= 0.105\xa0rad s-1 T to the power -1 T-1 |
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| 193. |
sir can yoy give me some question of significant figures rules numerical based |
| Answer» 00.00000052308670000Calculate no. of significant figures into it | |
| 194. |
What is physices |
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Answer» Phiysics is a branch of science which has originated from Greek word \'fusis\' means nature. So physics deals with nature and natural phenomena Physics is the branch of science which deals with nature and natural substances It is a systematic formulated organised knoledge which can be gained by any human through different experiments observations performances It is a branch of science that deals with nature and natural phenomenon Physics is a part of science. Physics is a subject |
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| 195. |
What is application of scalar product of two vector . How it is different from vector product in use |
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| 196. |
Calculate the astronomical units in 1m how many parsac are there in 1m |
| Answer» As we know that itf we multiply and divide by same number, answer does not change. Therefore, multiply and divide by 0 . Answer is 0 | |
| 197. |
What is Error and Dimension ?? |
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| 198. |
what is kinetic energy? |
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Answer» Energy which is possessed by the virtue of its motion. E=1/2mv2 energy which a body possesses by virtue of being in motion. Kinetic energy is the energy which is posseses from the object E =1/2 mv^2 |
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| 199. |
Find the angle between two vectors p and q resultant is Rsq = psq + qsq |
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| 200. |
Calcus method |
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