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. |
What happen when bodies are deformed beyond elastic limit |
| Answer» LIMIT, maximum stress or force per unit area within a solidmaterial that can ARISE before the onset of permanent deformation. When stresses up to the elastic limit are removed, the material resumes its original size and SHAPE. Stresses beyond the elastic limit cause a material to YIELD or flow. For such materials the elastic limit MARKS the end of elastic behaviour and the beginning of plastic behaviour. For most brittle materials, stresses beyond the elastic limit result in fracture with almost no plastic deformation | |
| 2. |
Hey friends solve this : If displacement of a body S = 200+-5m and time taken by it is small t = 20+-0.2 second. Find percentage error in calculation of velocity. |
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Answer» is 3.5 PERCENT.. |
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| 3. |
Write down the characteristics of winter and summer |
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Answer» mer SeasonThe summer season starts in the month of April and continues till the end of June. During these months, the rays of the sun are nearly vertical. The days are LONG and nights are short. The heat is unbearable during the months of May and June.In the Northern plains, very hot winds CALLED loo blow and cause dust storms. The southern part, due to its nearness to the sea, is less hot. The cool winds coming from the sea keep the temperatures low. The desert in the north-western part of India is extremely hot. Dust storms occur almost every day in the desert areas. The mountains have a cool climate during this time of the year.The Winter SeasonBy October, the rainy season comes to an end all over the country and the days become short and the night become long. The rays of the sun are not overhead. The air turns cooler in the plains marking the coming of the winter season.The winter season lasts from November to FEBRUARY every year. In the Northern Plains, very cold wind blow MAKING the winter months severe. Most of the hilly areas receive heavy snowfall. January is the coldest month in the Northern Plains. The winter season in Peninsular India is mild as a result of the influence of the surrounding water bodies. The coromandel Coast receives heavy rainfall during this season.I HOPE this help you. please mark as brainliest. |
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| 4. |
Why is it necessary to minimise transfer of heat explain and provide an example for 7 class? |
| Answer» ANSFER is a discipline of thermal engineering that CONCERNS the generations,use conversions and exchange of thermal energy between physical systems. heat transfer is classified into VARIOUS mechanisms such as thermal conduction,thermal convention,thermal padiction | |
| 5. |
Why are alpha particles deflected from a positively charged plate? |
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| 6. |
What do you mean by internal resistance Of a cell? Show with equation the inner drop of potential or lost volt? |
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Answer» istance WITHIN a BATTERY, or other voltage SOURCE, that causes a DROP in the source voltage when there is a current |
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| 7. |
Hey mate this question is from 11 class : Length and breadth of a rectangle are 5.7+-0.1cm and breadth is 3.4+-0.2cm.Calculate area of rectangle with error limit.don't copied it from google and give Mr correct answer |
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Answer» THE ATTACHMENT |
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| 8. |
If a light flashes every 6 seconds, how many times will it flash in of an hour including the first flash? |
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Answer» re u go In ¾ of an hour there are (60 * 45) seconds = 2700 seconds. LIGHT flashed for every 6 seconds. In 2700 seconds 2700/6 = 450 times. The count start after the first flash, THELIGHT will flashes 451 times in ¾ of an hour.hope it helps uh |
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| 9. |
A cylindrical tube open at both ends is made of a metal the internal diameter of the tube is 11.2 cm and its length is 21 cm the metal thickness is 0.4 cm calculate the volume of the metal |
| Answer» 1 +4 by 2×10×10 SOLVE it | |
| 10. |
Gateoverflow finding frequency of circuit when odd number of gates are given |
| Answer» OU SAKES your TEACHER | |
| 11. |
When temperature of material is increased product of its resistivity and conductivity? |
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Answer» re U GO .....When temperature of conductor is increased, resistivity of metal increases, same as saying CONDUCTIVITY decreases. The answer lies in the DEFINITION between resistivity and conductivity. The resistivity RHO equals the inverse of conductivity (1/sigma).hope it helps uh |
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| 12. |
When the length of the wire is double than ammeter reading will be? |
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Answer» ding of the ammeter decreases to half when the length of the wire is doubled. When length of wire is doubled, the resistance is also doubled, because resistance is directly proportional to length of wire. HENCE according to OHMS law for a GIVEN POTENTIAL DIFFERENCE, the current reduces to half.Hope it helpsPlease mark me brainliest |
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| 13. |
Two charges of c and 4c are placed 1/2m apart. The ratio of coulomb forces of two charges is |
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Answer» 1Amount of FORCE excerted by ONE CHARGE on other is GOING to be the same |
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| 14. |
Hey friends please describe it is from 11 class what do you mean by errors and write it's 3 types also gives its formula and don't copy it from google give me perfect answer |
| Answer» LY ERRORS are classified into TWO types: systematic errors, random errors 1) Systematic Errors3) Random Errors There is no a particular formula to find this errors but we can find it from question itself SEE the attachment | |
| 15. |
Why velocity of object increases coming towards earth? |
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Answer» here is no initial air RESISTANCE, the object begins to free fall and accelerate. But as the object VELOCITY increases, it ENCOUNTERS air resistance, or drag, which opposes the motion. ... So, the terminal velocity decreases slightly as the object FALLS to earth; it is not truly a CONSTANT value. |
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| 16. |
When a negagtive terminal is connected to a negative teriminal is it forward biasing orbreversebbiasin? |
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Answer» re u go... During the negative half cycle, terminal A is negative and terminal B is POSITIVE. That means the diode D is FORWARD biased due to the input SUPPLY voltage. Furthermore, thebattery is also CONNECTED in such a way that the positive terminal is connected to p-sideand the negative terminal is connected to n-side.hope it helps u |
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| 17. |
What work is said to be done to increase the velocity of a car from 15 km/h to 30km/h? |
| Answer» E, Here is your answerHope it HELPS you | |
| 18. |
If n numbers of water droplets of energy E added and make a big drop what is the energy of big drop?? |
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Answer» rgy will be same. it CANT. be destroyed and cant be MADE. TAG the ANS. as brainliest |
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| 19. |
Why the electricity not spread in sea by electric ray fish? |
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Answer» दिल के अरमां आँसुओ में #बह_गएहम तो चपरासी लगने से भी #रह_गए |
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| 20. |
Why rough surface are better radiators than smooth surface? |
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Answer» a generallization so it is not always true. It depends on the detials. If you make some SIMPLIFYING assumptions such as: 2 samples of the same material at the standard temperature and in the same thermal environment and the "energy" you are interested in is thermal energy and the only difference is the surface roughness of the TWO samples where one sample is very smooth and the other sample is as rough as 60 grit abrasive, then, yes, the rougher surface will be a better radiator and better absorber. A given material has a given emissivity (the OPPOSITE of absorbtivity) for a given type of electromagnetic radiation. The emissivity of that material changes with temperature. So... if the only difference is a smooth surface vs a rough surface, it is all about the amount of surface area and the rough surface has more surface area. (depending on the specifics of that rough surface but it may have a LOT more surface area, maybe a couple orders of magnitude HIGHER surface area)....if U love it pls mark as brainlist |
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| 21. |
A 33 ohm half watt resistor and 330 ohm half watt resistors are connected across a 12 volt source. Which one will overheat? |
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Answer» directly perportional to RESISTANCE So 330 ohm resistor will overheat Hope it will HELP you PLZ mark it brainlist answers |
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| 22. |
If refractive indices of alcohol & water are 1.36 and 1.33 respectively, which of the two is optically denser? |
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Answer» as it's REFRACTIVE INDEX is more than WATER.. |
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| 23. |
Why is the shadows of flying aereplanes cannot be seen? |
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Answer» E ✌✌✌Planes shadows are normally only seen when a plane is close to the ground. Because the sun is a disc of light and not a virtual POINT of light, there is a point where from your position the plane no longer covers the sun completely. This is the point where the shadow EFFECT starts to diminish significantly. As the plane goes higher, in comparison to you the LESS of the sun it will cover and the less STRONG and distinct the shadow will be.You will notice this in flying that if you follow your planes shadow on the ground as you gain ALTITUDE that at first it is sharp but then it gets larger and fuzzier. Eventually, both because of the fuzziness and the height it is hard to see where the plane's shadow is. This is probably the effect you are seeing.^_^^_^ HOPE IT HELPS ^_^^_^ |
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| 24. |
In optical communication the maximum angle in which external light rays may trike down air/glass interface and still pooping down the fiber is called |
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Answer» tons are assumed to be SMALL packets of ENERGY that collides with metal surface with no time delay. 2). photons collides elastically over the metal surfaceHope it HELPS buddy N don't frgt to mark it as the BRAINLIEST |
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| 25. |
What is relationship between force applied on a body and resulting acceleration caused by it |
| Answer» TION:Newton's second law of MOTION states that the the date of change of momentum of an object is directly proportional to the external UNBALANCED FORCE acting on it and it is in the direction of the force | |
| 26. |
Two parallel plate capacitors x and y have the same area of plates and same separation between them. X has air between the plates while y contains a dielectric medium of . |
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Answer» Your QUESTION is INAPPROPRIATE |
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| 27. |
Water is falling on the blades of a turbine at a rate of 100 kg per second from a certain spring if the height of the spring be hundred metre then power transferred to the turbine will be |
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Answer» raulic EFFICIENCY of an impulse turbine is MAXIMUM when velocity of wheel ISIN a CENTRIFUGAL pump, the water enters the impeller __________ and leaves the vanes axially. A KAPLAN turbine is an axial flow reaction turbine. The hydraulic efficiency of an impulse turbine is maximum when velocity of wheel is __________ of the jet velocity, A.hope it helps mark as brainlist |
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| 28. |
Why does india have a monsoon type of climate short answer? |
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Answer» India has a MONSOON type of climate as its climate is influenced by the monsoon WINDS. The monsoon type of climate is based on DISTINCT season and season of reversal of monsoon winds. This happens due to the differential heating of land and water BODIES and pressure situations |
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| 29. |
If earth revolves around the sun in an orbit of double radius if its length and radius then the earth in the year will be |
| Answer» UNDERSTAND your QUESTION PROPERLY | |
| 30. |
Velocity with which projectile is fired so never comes is not depends on |
| Answer» VELOCITY doees not DEPENDS on THEMASS OF OBJECT FIRED..... | |
| 31. |
What are the environmental consequences of the increasing demand for energy? (point wise) |
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Answer» ider and leveled than the WESTERN coastal plains and STRETCHES from Tamil Nadu in the south to WESTBENGAL in the north through Andhra Pradesh and Odisha. Chilka Lake is a brackish water lake along the EASTERN coastal plain. ... Deltas of many of India's rivers FORM a major portion of these plains. |
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| 32. |
Why a house should be ventilated properly give reason? |
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Answer» tion refers to the exchange of indoor and outdoor air. WITHOUT proper ventilation, an otherwise insulated and airtight HOUSE will seal in HARMFUL pollutants, such as carbon monoxide, and moisture that can damage a house. Proper ventilation helps keep a HOME energy-efficient, safe, and HEALTHY. |
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| 33. |
Two resistors of 15 ohm and 10 ohm are connected in parallel this combination is connected in series with 24 hour and 15 volt battery find the current through 10 ohm resistor |
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Answer» /R1+1/R2Req=R1R2/R1+R2Req=150/25 =6 ohmV=IR 15=I 6I=15/6=5/2 ampLet US assume that the current flowing through the 10 OHM RESISTOR is I'Then the current flowing through it isI'=IR2/R1+R2I=5/2R1=15, R2=10Then I'=1/2=0.5 AMP |
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| 34. |
at what dept the acceleration due to gravity is 9.45m/s^2.radius of the earth =6400 km and g at the surface =9.8m/s^2 |
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Answer» d/r)9.45=9.8(1-d/6400000 m )d=0.256×10^6 m |
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| 35. |
The Young's modulus of a wire of length L and radius R is Y if the length is reduced to half what will be its young modulus |
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Answer» modulus DEPENDS only UPON the nature of the material It has fixed value for a particular type of materialSo, the Young's modulus will not charge |
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| 36. |
When no heat flows, why internal energy is constant? |
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Answer» ehere is ur answerThe SYSTEM has internal energy which is the sum of the kinetic energy and the potential energy of all the MOLECULES which MAKE up the system. There are two PROCESSES by which energy can flow in or out of the system. One is called working and the other is HEATING. |
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| 37. |
Electricity is the flow of _____ in a conductor from one atom to another in a particular direction. |
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Answer» he flow of electrons in a conductor from ONE atom to another in a PARTICULAR direction. |
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| 38. |
Write two applicatioms of avagadro law. |
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Answer» lication s are as given below.In explainaining GAY LUSSAC's law of gaseous volume.In determining atomicity of gases.In determining moleculer formula of the gas.In establishing the relationship between RELATIVE moleculerass and vapour DENSITY. |
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| 39. |
Does fermet light's theorem works for wormholes? |
| Answer» FORMER LIGHT theorom WORK for WORMHOLES | |
| 40. |
Write the formula of volume for the following regular shaved solid object . 1.cube2.sphere3.cylinder4.cone |
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Answer» of cube= (Side )^3Volume of SPHERE= 4/3πr^3Volume of cylinder= πr^2hVolume of cone= 1/3πr^2hHope it helps ✌✌ PLEASE mark it as BRAINLIEST.. |
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| 41. |
Which type of material used in electromagnetic brake? |
| Answer» MAGNETIC BRAKE: Electro magnetic brake refers to when an ac supply is given to the ferromagnetic material via COIL. there will be PRODUCTION of artificial magnetic FIELD, this type of brake is used in winch technology. | |
| 42. |
What are quantum numbers? What permitted values can these have? Explain their significance. |
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Answer» o...I'll help u...A QUANTUM number is a value that is used when describing the ENERGY levels available to ATOMS and molecules. An electron in an atom or ion has four quantum numbers to describe its state and yield solutions to the Schrödinger wave equation for the hydrogen atom.The principal quantum number is an integer that is the number of the electron's shell. The value is 1 or higher (never 0 or negative).The angular momentum quantum number is an integer that is the value of the electron's orbital (e.g., s=0, P=1). ℓ is greater than or equal to zero and less than or equal to n-1.The magnetic quantum number is the orientation of the orbital with integer values ranging from -ℓ to ℓ. So, for the p orbital, where ℓ=1, m could have values of -1, 0, 1.The spin quantum number is a half-integer value that is EITHER -1/2 (called "spin down") or 1/2 (called "spin up").Hope it helps you..# BeBrainly |
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| 43. |
Which is more sensitive: a stopwatch Or a stop clock? give reason . |
| Answer» TCH Is more sesitive | |
| 44. |
Which equation is not balanced? a 2H2 + O2® H2O b H2 + H2 + O2® H2O + H2O c 4H2 + 2O2® 4H2O d 2H2 + O2® 2H2O |
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Answer» t balanced.Because H is 4 and O is 2.But in right side H is 2 and O is 1. |
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| 45. |
When the equation Fe3O4 + Al → Al2O3 + Fe is correctly balanced, what is the coefficient of Fe? a 3 b 4 c 6 d 9 |
| Answer» E ANSWER of this QUES | |
| 46. |
there is uniform field 8×10^3iN/C. what is the net flux(in SI units) of the uniform electric field through a cube of side 0.3 m oriented so that its faces are parallel to the coordinate plane?? |
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Answer» The net FLUX will be .Explanation:GIVEN that,Electric FIELD Side of cube AREA The flux is the dot product of electric field and area.The net flux will beHence, The net flux will be . |
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| 47. |
If a table four legs of weight 120 kg and area of contact is 0.050 square calculate the pressure in 3 legs |
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Answer» sure = thrust/ areapressure = 120/0.050=2400 pascalpressure on 1 LEG= 2400/4=600pressure on 3 legs= 600*3=1800 pa |
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| 48. |
The gravitstiomal forcebeteeen two objects is 100Nhoe should the distance between the two objevts be changed so that force between them becomes 50n |
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Answer» /R^2100=KQ1Q2/r^2The FORCE will BECOME 50N when r BECOMES r√2 |
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| 49. |
A student is two and half round of circular track of radius 21 cm find the distance and displacement |
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Answer» $%&%$#$#$%%$#$%***$# |
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| 50. |
Which region of earth is frequently affected by earth? |
| Answer» YPUR QUESTION SHOULD BE WHAT REGIONS ARE AFFECTED BY EARTHQUAKE | |