This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A particle is moving on a straight line along x-direction. A graph between square of itsvelocity Ne position is drawn as shown. Vindthe magnitude of acceleration in m/s) ofparticle |
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Answer» average velocity is 25m/s so distance will be 25×20=500mnow finding area of the GRAPH between velocity and time graph we get area of TWO TRIANGLES + area of rectangle.2. 21 t.5.t+(25−2t).5t=500=>t 2 −25t+100=>t=5so option B is answer.Answered By |
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| 2. |
A particle is performing a uniform circular motion along the circumference of a circle of radius 'R' and 'T' is the periodic time. Inthe time 'T/4' its displacement and distance covered are respectively |
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Answer» cbjfkdjhtkskfjksdbfjkf |
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| 3. |
network of resistor is connected to a 16 volt battery with internal resistance of 1 ohm is shown in figure obtain the voltage drop Vab,Vbc and Vcd |
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Answer» please FOLLOW me and MARK my answer as the BRANLIEST Explanation:The voltage VAB in between A and B is the PRODUCT of the total current between A and B and the equivalent resistance between A and B,Therefore,VAB=2×2=4vVoltage DROP across VBC=2×1=2VVoltage across VCD=2×4=8V |
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| 4. |
Sourav ab sahi hai na ya abhi bhi kuchh galat hai vaise tumne apni gmail I'd mujhe kyu diya |
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Answer» Sahi h wo Mene isliye DIYA h AGAR tumhe koi DOUBT HO to me clear kar Sakta hu bacause I am in 10 |
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| 5. |
What happens to the air as it passes through the nasal cavity? A. Filtered in the nostrilsB. Moistened by muscusC. Warmed to the body temperatureD. All of these |
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| 6. |
A metal wire of length land cross sectional area 'A' has mass 'm'. It isstretched by an amount 'e' by a load ofmass 'M'. If the wire breaks at the pointof suspension due to the load, then therise in temperature of wire is[S - specific heat of wire material](A) Mge2ms(B)Mg2mse(C) Mgs |
| Answer» B is the ANSWER MARK as BRAINLIAST | |
| 7. |
State the relationship between one ampere and one coulomb.say 1 mark answer |
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| 8. |
What is the range of static friction coefficient |
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Answer» The best linear fit defines a maximum coefficient of static FRICTION FS = 0.85 (Byerlee, 1977), with a range approximately between 0.6 and 1. The range has been confirmed by stress INVERSION of small faults slip data in situ with result 0.6 ± 0.4 (Sibson, 1994). |
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| 9. |
A car travelling st 10 meter per second has 200000 J of KE. what is the mass of the car |
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Answer» (MV^2)200000=1/2 M 100M=4000KG |
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| 10. |
Chemistry प्रश्न 1. (ब) 0°C ताप पर एक चालक का प्रतिरोध x ओम है, वह ताप ज्ञात कीजिए जिस परचालक का प्रतिरोध 3x ओम हो जाता है। चालक का प्रतिरोध गुणांक नियत हैजिसका मान 0.4x10-2 °C-1 है।अंक 2+2 शब्दसीमा 75-100 |
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Answer» FUCUGUFUGUFYXFUFUFUGGUG7 GIGIGIGG the HOSPITAL YESTERDAY GOING going yguuExplanation:hmxxtcyffyfufgggyyyhhytsrryygfdsetgfffftghhhggguuuhhhhvhhhuuyhhhgggggyyy |
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| 11. |
An elevator is accelerating down at 2m/s^(2) in which a simple pendulum is suspended on one of its vertical wall with string length 2m .The string is pulled aside and bob is held horizontally with string tight.The minimum downward speed (in m/s) with which bob is to be thrown so that bob completes the vertical circle is given by 4sqrt(k) .Then value of k is : |
| Answer» APPLYING the energy conservation principle. The KINETIC energy provided will CHANGE into gravitational potential energy i.e.21 MV 2 =mgl⇒v= 2gl Explanation:I am not sure about it | |
| 12. |
If magnification of the image is 3 and image height is 15cm find the object height |
| Answer» SEE the ATTACHED pic where it is explained.hi and HO are the image and object HEIGHT RESPECTIVELY | |
| 13. |
What is force......??don't spam |
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Answer» tion:In physics, a FORCE is any interaction that, when unopposed, will change the motion of an object. A force can cause an object with MASS to change its velocity, i.e., to accelerate. Force can also be DESCRIBED intuitively as a push or a pull. A force has both magnitude and direction, MAKING it a vector quantity.In SI base units: kg·m/s2Other units: DYNE, pound-force, poundal, kip, kilopondDerivations from other quantities: F = m aSI unit: Newton |
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| 14. |
Match the statements in column A with those in column B Column A1. A force when applied on object brings object closer to us2. A force called in to play only when an object is made to slide upon another object3. A force which attracts tiny bits of dry paper or straw4. A force which makes the sailboat to move5. A force exerted by a horse in pulling a tongaColumn Ba) electrical forceb) mechanical forcec) muscular forced) pulle)consequential force |
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Answer» 1.pull2.consequential force3.electrical force4.mehanical force5.muscular FORCE |
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| 15. |
During a cycle race, two persons A & B moving with velocity 16 m/s & 12 m/s respectively. At t = 0, B observes A, 10 m ahead of him, in order to win the race they start accelerating at 1 m/s2 and 2 m/s2 respectively. Unfortunately both finish simultaneously. The time (in sec)at which they finish the race is euqal to (t = 10 k), then value of k is ( Allen test question , don't repeat in comments or answers lol ) |
| Answer» GIVING in explainationExplanation:ANSWER IS 8FILL THE NUMARICAL VALUE | |
| 16. |
What is ment by fussion?? wrong answer will be reported |
| Answer» TION:Fusion is the process or result of joining two or more things together to form a SINGLE ENTITY. | |
| 17. |
Pick out the only vector quantity in the following list. ( mass, density, force, speed, work ) |
| Answer» FORCE and WORK are vectorsExplanation:they REQUIRE a DIRECTION too | |
| 18. |
The work done by a force (2î – j +5k) when it displaces the body from a point (3, 4, 6) to a point (7,2,5) is(A) 65 units(B) 61 units(C) 45 units(D) 35 units |
| Answer» 65 unitsExplanation:ANSWER is A so PLZ MARK me as BRAIN........ | |
| 19. |
A the body from a point (3, 4, -6) to a point (7, 2, 5) is(A) 65 units(B) 61 units(C) 45 units(D) 35 units |
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Answer» Option C 45 UNITS................EXPLANATION:Plzz FOLLOW me |
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| 20. |
Define center of curvature |
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Answer» Cauchy defined the center of CURVATURE C as the intersection point of two INFINITELY close normal lines to the curve. The locus of CENTERS of curvature for each point on the curve comprise the EVOLUTE of the curve. This term is GENERALLY used in physics regarding to study of lenses and mirrors. |
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| 21. |
CARA JADI ORANG PINTAR |
| Answer» HLO BROTHER ......EXPLANATION:How are U..........?????? | |
| 22. |
Adding acid & base solutions in a test tube result to.. |
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| 23. |
what is the force in Newton experienced by a straight current carrying conductor carrying a current of 1 ampere and length of conductor is 1 metre when it is placed parallel to a magnetic field of 2T |
| Answer» FORCE =MAGNETIC FIELD × LENGTH ×curent COS0 | |
| 24. |
in a hypothetical system of units, the unit of mass is equal to 10kg that of time is 0.25sec and that of lenght is 1km. the numerical value of 1pascal pressure in this new system of units will be ? |
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Answer» 6.25Explanation: |
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| 25. |
The displacement and distance travelled by the body in 4 seconds |
| Answer» SPEED × TIME =DISTANCE ..... | |
| 27. |
an elevator is going up the variation in the velocity of the elevator is as given in the graph the height to which the elevator takes the passenger is |
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| 28. |
What does the area of F(x)→x graph gives. |
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Answer» If you graph the force on an OBJECT as a FUNCTION of the position of that object, then the AREA under the curve will EQUAL the work done on that object. ... X graph is equal to the work.” |
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| 29. |
Pls help me. give correct ans |
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Answer» I will HELP you but you have to do me BRIANLIEST |
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| 30. |
P = A sin (Bt + Ct2) + xHere t is time and x is length. The dimensions of AB/Cwill be |
| Answer» TION:Consider the following equation P = A sin (Bt + CT2) + x. Here t is time and x is length. The DIMENSIONS of AB/C will be | |
| 31. |
Rewrite the following statements by selecting the correct options :(1) ......... is used to study the anomalous behaviourof water.(a) Calorimeter(b) Joule's apparatus(c) Hope's apparatus (d) Thermos flask(2) When water boils and is converted into steam,then ........(a) heat is taken in and temperature remainsconstant(b) heat is taken in and temperatures rises(c) heat is given out and temperature lowers(d) heat is given out and temperature remainsconstant(3) When steam condenses to form water,(a) heat is absorbed and temperature increases(b) heat is absorbed and temperature remains thesame(c) heat is given out and temperature decreases(d) heat is given out and temperature remains thesameanswer me fastit's argent |
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Answer» sis uh ASKED for chemical reaction right!so.... it is a reaction in which d reactants react to form a PRODUCT ... where d properties of reactants R totally diff FRM d product !hope it helps !Explanation: |
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| 32. |
Two vectors  and  such that the component of  is zero. Then the value of  will be |
| Answer» DOT product of TWO VECTORS a and B is a . b =abcosθ where θ is the ANGLE between them.abcosθ=0⇒cosθ=0⇒θ=90 ∘ | |
| 33. |
the equivalent resistance of 200 resistors each of 100 ohms connected in parallel is found to be p by 2 ohm. find the value of p |
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Answer» AnswerCorrect option ISA(66.7 ± 1.8) ΩHere, R 1 (100±3)Ω;R 2 =(200±4)Ω The equivalent resistance in parallel combination isR 1 1 = R 1 1 + R 2 1 , R p 1 = 1001 + 2001 = 2003 ,R p = 3200 =66.7ΩThe error in equivalent resistance is GIVEN byR p2 ΔR p = R 12 ΔR 1 + R 22 ΔR 2 ;ΔR p =ΔR 1 ( R 1 R p ) 2 +ΔR 2 ( R 2 R p ) 2 =3( 10066.7 ) 2 +4( 20066.7 ) 2 =1.8Ω Hence, the equivalent resistance along with error in parallel combination is (66.7 ± 1.8)Ω. |
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| 35. |
Motion Position time graph ofis givenofan objectTosdianato15612510timu-20 |
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Answer» The DISPLACEMENT time graph of a BODY MOVING with UNIFORM motion is linear. |
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| 36. |
प्रश्न 3. स्वच्छ एवं नामांकित रेखाचित्र की सहायता से चल कुण्डल धारामापी की रचना, कार्य सिद्धान्त तथा सुग्राहिता की व्याख्या कीजिए। |
| Answer» TION:चल कुंडल धारामापी की संरचना एक चुंबकीय पदार्थ की उम्र होती है जैसे एक नियम की पूर्ण होती है इसके ऊपर तांबे के तार के अनेक फेरे लपेटकर एक कुंडल बनाई जाती है कुंडली के ऊपर ऊपरी सिरे पर या ऊपरी भाग पर एक समतल दर्पण जोड़ दिया जाता है वह समतल दर्पण के ऊपरी भाग को एक था | |
| 37. |
Querry Q: Two Charged of same magnitudetied by strings oflengthl=20cm from the samepoint. The distancebetween theChargesis24cmdue to repulsion.Massof each chargeis 0.1g.What is thecharge of eachcharge? |
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Answer» Two small spheres, each of mass 0.1 gm and carrying same charge 10−9 C are SUSPENDED by threads of equal length from the same POINT. If the distance between the centres of the sphere is 3 cm,then find out the angle made by the THREAD with the vertical. (g = 10 m/s2) & tan−1(1001)=0. |
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| 38. |
Plaster of Posis should be stored inmoistureRooof contined explain why? |
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Answer» whenever plaster of paris is exposed to air it take 3 by 2 molecules of water and form gypsum. due to formation of gypsum salt the Plaster of Paris is going hard. so to prevent it from getting hard it should be kept in moisture proof CONTAINER not in exposed air . hope it HELPS you dear !! |
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| 39. |
14.Show that if the uncertainty in the location of a particle is about equal to its de Broglie wavelength, then the uncertainty in its velocity is about equal to one tenth its velocity. |
| Answer» TION:आग न होता तो हमें अंधेरे में उजाला करने के लिए रोशनी नहीं मिलती। यदि आग नहीं होता तो हम कच्चें सब्जियों को चबाते क्योंकि आग के माध्यम से ही चूल्हा जलती है। हम खाना नहीं बनाते। आग न होता तो हम ठंड में मर जाएंगे क्योंकि लकड़ी का गर्म पाने के लिए हमें उन्हें जलाने की आवश्यकता होगी जो आग ही होती है। | |
| 40. |
A man throws a ball in such a way that it has a maximum horizontal range of 100 m. The point of projection is at the origin (0,0). At acertain point in its path, its velocity is minimum. What are the coordinates of that point?(A) (25, 50) m(B) (50, 25) m(C) (100, 50) m(D) (50, 50) m |
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Answer» (C) (100,50)EXPLANATION:As it's on the origin and HORIZONTAL range=100it SECOND coordinate should be it's half.Therefore answer is OPTION (C) |
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| 41. |
Two resisfors of resistance R ohm and 12 ohm are connectedin parallel ina circuit. if the resultant resistance the circuit is on the value of R is |
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Answer» 6 ohmExplanation:using formula of parallel RESISTOR R = R1 × R2/R1+R2 where R1 and R2 are resistor |
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| 42. |
A ball thrown up vertically returns back to the thrower after 6s find the position after 4s |
| Answer» PLEASE WRITE PROPERLY | |
| 43. |
the equivalent resistance of two hundred resistors each of hundred ohms connected in parallel is found to be p by 2. find p |
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Answer» ivalent is senstive he is RESISTERS |
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| 44. |
Cause of Peltier Effect.???? |
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Answer» The Peltier effect is a temperature difference created by applying a voltage between two electrodes CONNECTED to a SAMPLE of semiconductor material. This PHENOMENON can be useful when it is NECESSARY to transfer heat from one MEDIUM to another on a small scale |
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| 45. |
An object is placed 15 cm from a convex mirror of radius of curvature 90 cm Calculate the positions of the image and its magnification?I want the solution with proper statement plz |
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Answer» the ANSWER okkkkkkk |
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| 46. |
Two small spheres, A and B. Sphere A has a charge of + 3.00 × 10−6 C. Sphere B has a charge of − 4.00 × 10−6 C. Find the magnitude and the direction of the electric field strength at P |
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| 47. |
By this object. PROB:33Voume of a piece of wood is 80 CC om ditsdensity is 0.84 gmcoa) calculate its weight in gm cotb) If it is floating in water (density=19mCOwhat is the Magnetedo of up thenest actingin it?c) calculate the volume of water displaced |
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| 48. |
How is the buoyant force dependent on the temperature (T) of a fluid? |
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Answer» Buoyancy is the TENDENCY or the ability of an object to float on a fluid.I am assuming that the increase in temperature is of the fluid which is acting a buoyancy force on the object.The object is FLOATING on the fluid basically because of differential density (object has less density than the fluid). When the temperature of fluid is INCREASED, convection currents will be developed within the fluid, wherein the hotter fluid rises and cooler fluid SETTLES at the bottom. This is ALSO due to the fact that increase in temperature of a fluid decreases its density. So at the top surface, hot fluid is in contact with the object. Now due to increase in temperature, this differential density has decreased.This means that now the buoyancy forces will be less. |
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| 49. |
A brass wire of length 1m and area of cross section 1mm? is stretched byapplying a force of 20N, then work doneper unit volume of the wire is[ Ybrass = 0.91 x 10' N/m2](A) 2198J/m(B) 1049 J/m3(C) 4422J/m3η(D) 4521 J/m ? |
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Answer» The ANSWER is a OPTION AMark me BRAINLIEST |
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| 50. |
Sonic booms are observed when |
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