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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. |
4.A boy starts to walk along the perifery of a circular path which has a diameter of 14m. He takes 2minsfor completing a single turn around the entirecircularpath. After 2mins what is the distance covered bythe boy.find out what is the velocity of the boy? |
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Answer» tion:44m is DISTANCE COVERED by him.0 m/s as he CAME BACK to his anitial POSITION. |
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| 2. |
द्रव्य के कण तरंग दैतवाद की व्याख्या कीजिये तथा डी बाग्ली तरंगदैर्ध्य का सूत्र प्राप्त कीजिये। Explain the wave particle dunlity of matter explain its expression for the de-Bro |
| Answer» TION:Matter waves are a central part of the theory of QUANTUM mechanics, being an example of wave–particle duality. ... The concept that matter BEHAVES LIKE a wave was proposed by Louis de Broglie (/dəˈbrɔɪ/) in 1924. It is ALSO referred to as the de Broglie hypothesis. Matter waves are referred to as de Broglie waves. | |
| 4. |
Why is water not suitable to control fire of oil and petroleum |
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Answer» r is heavier than PETROL therefore slips down permitting the petrol to rise to the surface and continue to BURN. Besides, the existing temperature is so high that the water poured on the fire evaporates even before it can extinguisher the fire. The latter is true if small quantity water is poured. Thus the petrol fire cannot be extinguished by water.Water is denser than oil. So it sinks below the oil and oil keeps burning on top and fire cannot be controlled. Fuels with a specific gravity less than water, such as gasoline or oil, FLOAT on water, resulting in the fire continuing in the FUEL on top of the water. When water poured on such liquids it sinks to the bottom where it evaporates and expands rapidly due to which it SPREADS fire in all directions. |
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| 5. |
On 5. Look at the adjacent diagram and choosethe correct one from below.coA) X-pole, Y-Centre of Curvature, 2-prtost pa!aris6- Geometric Centre of minor is...)A) Centre of CurvatureB) pole of the mirror.c) Radius of curvatureD) priocipal axis |
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| 6. |
Which cloth is used for 'lint for dressing'? |
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Answer» linen clothLint is composed of tiny bits of fabric FIBERS that are shed from the edges of our garments. Fabrics made of natural fibers like COTTON and wool generate more lint than fabrics made of rayon or other synthetic materials. Bits of FIBER break off from our CLOTHING from the FRICTION of wear |
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| 7. |
Two vectors P and Q are in a plane but the vector R is not in their plane. In such a case  |
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Answer» Acceleration (a) is the change in VELOCITY (Δv) over the change in time (Δt), represented by the EQUATION a = Δv/Δt. This ALLOWS you to measure how fast velocity changes in meters per SECOND SQUARED (m/s^2). |
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| 8. |
As the density of the liquid increases,the hydrometer |
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Answer» If the density of a LIQUID increases, the hydrometer used will float higher because the hydrometer MEASURES density in which the higher you GO on the hydrometer (from the bottom), the lower the MEASURE. Therefore, it can be said that the density measures are in descending order from the top to bottom. |
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| 9. |
Explain resistance and resistivity?? |
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Answer» The answer is in the attached PHOTO:Explanation:And resistance PRODUCED due the the COLLISION of electrons and protons and OPPOSES the MOTION of electrons. HOPE IT HELPS. |
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| 10. |
the electrostatic force of repulsion between two positive charge ion carrying equal charges is 3.7×10^9N, when they are separated by a distance of 5Amp. how many electron are missing from each other??? |
| Answer» TION:Acceleration (a) is the change in velocity (Δv) over the change in time (Δt), represented by the EQUATION a = Δv/Δt. This allows you to measure how fast velocity changes in METERS per second SQUARED (m/s^2). | |
| 11. |
due to an application of force of 5N a objects move through a displacement of 10m along perpendicular direction of force.find the work done |
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Answer» 50JExplanation:WORK = FORCE × DISPLACEMENT= 5×10= 50J |
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| 12. |
If an ant completes one circular motion, then the displacement is 2nrΟ ΟTrO4rO Zero3TI |
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Answer» tion:firstly you take me❤ a thank and GAVE me brain list and comment me I think 2nr this is RIGHT ANSWER I HOPE it is help in your ✏✏✏ |
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| 13. |
Two bulbs A and B are rated as 100 W, 220 V and 200 W, 220 V respectively. What are the respective resistances of these two bulbs?If the two bulbs are connected in series across a 220 V supply as shown, thenfind the power consumed by the bulb A and the bulb B. |
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Answer» I THINK BULB AEXPLANATION:MARK me as BRAINLIEST |
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| 14. |
The formula of quick lime is (a)caco3(b)cao(c)ca(oH)2(d)cuo |
| Answer» B is CORRECT CaOhope it HELPS ❤️ | |
| 15. |
60gm of NaOH is dissolved in 12L water solution. Express the concentration in g/l |
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Answer» The company has a long HISTORY with me now WORKING on the PROJECT to do it myself in a long WAY to work |
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| 16. |
_____ is highly inflammable hydrocarbon gas. |
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Answer» the ANSWER is EXPLANATION:hydrogenplease SELECT me the BRAINLIEST and FOLLOW me |
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| 17. |
The minimum the minimum forces of the non coplanar of the equilibrium is |
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Answer» The minimum number of non-coplanar VECTORS WHOSE sum can be zero. ASSERTION: The minimum number of non-coplanar Vectors whose sum can be zero, is four Reason: The resultant of two vectors of UNEQUAL magnitude can be zero.Explanation:please follow me and MARK me brainliest |
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| 18. |
How can we find which particle is proton and which is electron in magnetic field |
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Answer» A quark is a tiny PARTICLE which MAKES up protons and neutrons. Atoms are made of protons, neutrons and ELECTRONS. It was once thought that all three of those were fundamental PARTICLES, which cannot be broken up into anything smaller. |
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| 19. |
The position co-ordinate ‘r’ of a body is given r= at2+bt+c. What is the value of velocity? |
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Answer» Acceleration (a) is the change in VELOCITY (Δv) over the change in time (Δt), represented by the equation a = Δv/Δt. This allows you to measure how FAST velocity CHANGES in METERS per second SQUARED (m/s^2). |
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| 20. |
Show that a boat must move at an angle 90° with respect to river water in order to cross river in minimum time?frie water. The angle between |
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Answer» 180Explanation:50 thanks+follow= INBOX |
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| 21. |
if the weight of a person on the surface of earth is 1200N , then his weight on the surface of the moon is |
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Answer» 200NExplanation:MOON's GRAVATION is 1/6th of EARTH's gravationso, 1200N*1/6=200N |
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| 22. |
A 40 W bulb is connected to a 200 V supply line. Determine the current flowing in it and resistance of its filament. If 25% of the total power is radiated as light, then what will be the heat produced per minute? |
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Answer» P=V^2/RP:Power DISSIPATION in BULB, V:Voltage across bulb, R:Resistance of bulb.Now, bulb is rated as 40W, 200V. This SIMPLY means that the bulb will dissipate 40W of power when 200V is applied across it. Using this data, we can find the resistance of the bulb. So, R=V^2/P.So, resistance of bulb is 200^2/40=1000 ohms.Now, when SUPPLY voltage is 100V, then power dissipation is V^2/R=100^2/1000= 10W.this is your answer please follow E so that I can help you with other subjects also |
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| 23. |
कबड्डी खेल का इतिहास कौशल व शब्दावली विधियां बताइए |
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Answer» किंवदंती है कि 4000 साल पहले कबड्डी की शुरुआत तमिल नाडु में हुई थी। इसके प्रशंसकों में बुद्ध, और राजकुमार शामिल हैं जिन्होंने अपनी ताकत दिखाने और अपनी दुल्हन जीतने के लिए खेला।कबड्डी को अंतरराष्ट्रीय स्तर पर प्रतिस्पर्धी स्तर पर खेला जा रहा था खेल 1990 में बीजिंग एशियाई खेल का हिस्सा बन गया।Explanation:PLEASE MARK me |
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| 24. |
How to find displacement what is the formula of displacement |
| Answer» DISPLACEMENT can be calculated by measuring the final distance AWAY from a POINT, and then subtracting the initial distance. Displacement is KEY when determining velocity (which is also a vector). Velocity = displacement/time whereas SPEED is distance/time. | |
| 25. |
The average mass of an atom of Uranium is 3.9x10-25 kg. Find the number of atoms in 2g of Uranium. |
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| 26. |
कबड्डी खेल का इतिहास व कौशल शब्दावली लिखिया बताइए |
| Answer» MARK me BRAINLY if it HELPS you EXPLANATION:कबड्डी एक खेल है, जो मुख्य रूप से भारतीय उपमहाद्वीप में खेली जाती है। कबड्डी नाम का प्रयोग प्राय: उत्तर भारत में किया जाता है, इस खेल को दक्षिण में चेडुगुडु और पूर्व में हु तू तू के नाम से भी जानते हैं। यह खेल भारत के पड़ोसी देश नेपाल, बांग्लादेश, श्रीलंका और पाकिस्तान में भी उतना ही लोकप्रिय है। तमिल, कन्नड़ और मलयालम में ये मूल शब्द, (கை-பிடி) "कै" (हाथ), "पिडि" (पकडना) का रूपांतरण है, जिसका अनुवाद है 'हाथ पकडे रहना'। कबड्डी, बांग्लादेश का राष्ट्रीय खेल है। | |
| 27. |
9. Nickel is (A) Diamagnetic(B) Paramagnetic(C) Ferromagnetic(D) None of these10. The inner half of a convey Lane is hi |
| Answer» C) FERROMAGNETIC ssjsksjxoxus | |
| 28. |
Force is the .... needed to more something |
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Answer» momentumExplanation:HOPE it HELPS MARK me BRAINLIEST |
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| 30. |
A driver is traveling 18.4 m/s when she sees a red light ahead. Her car is capable of decelerating at a rate of 3.65 m/s^2 . How far from the beginning of the intersection will she be? |
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Answer» 46.38 mExplanation:INITIAL VELOCITY, u=18.4m/sFinal velocity, v=0 m/sAcceleration, a=-3.65m/s²Using the third equation of MOTION,v²-u²=2aSS=(v²-u²)/2a = -(18.4²)÷(2×-3.65) = 46.38 m |
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| 32. |
A bullet of mass 40gm is fired from a gun of mass 8kg with a velocity of 800 m/s, calculate the recoil velocity of gun please guys answer this question without any spam please |
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Answer» tion:mass of the bullet is 40 gm : convert to kg 1 g = 1/1000 kg 40 g = 40 / 1000 kg let's keep it as 0.04( MB)mass of the gun = 8 kg (mg) velocity of the bullet = 800m/s (vb) recoil velocity be v ¹ formula to FIND the recoil velocity is v¹ = - mb * vb / mg v¹ = - 0.04 * 800 /8 v¹ = - 32/8 v¹ = - 4 m/s I think so this is ur answer... Hope it HELPS you !!! Mark as brainliest please |
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| 33. |
134. From the graph, the state of the substance denoted by the curve CD is .... (1) Solid2 Liquid(3) Gas(4) Solid and liquid |
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Answer» liquidExplanation:the curve showa from x axus to taby account d you are not the intended RECIPIENT you are interested in your COUNTRY for a lot of acuboid you have any other information that you can we do bagundi a referee so LIQUID is the CORRECT information |
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| 34. |
4. Explain, how Concave and Coover minoreare formed. |
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Answer» These IMAGES are formed when light falls on a MIRROR from the object and is reflected back by the mirror on the screen. ... There can be two types of mirror: CURVED mirror and PLANE mirror. If a curved mirror is a part of a SPHERE then it is known as a spherical mirror. |
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| 35. |
5. A truck starts from rest and rolls down a hill with a constant acceleration. It travels a distance of 400 min 20 s. Findacceleration. Find the force acting on it if its mass7 tonnes Hint 1 tonne - 1000 ke |
| Answer» ACCELERATION 2 m/s^2there will be 4 FORCES...... | |
| 36. |
Which of the following is not a chemial change (a) photosynthesis (b)respiration (c)combustion (d)boiling of water |
| Answer» BOILING of WATERI HOPE this will HELP U | |
| 37. |
Concave and Convey mirrorsExplain, howare formed. |
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Answer» GIVE ME A BRANLIAST ANSWER AND FOLLOW MEVirtual images are always FORMED by CONVEX mirrors and are formed by concave mirrors when the object is placed in front of F. ... Plane mirrors and convex mirrors will always produce an UPRIGHT image. A concave mirror will only produce an upright image if the object is located in front of the focal point. |
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| 38. |
4) writo a chemical equation for seaction ofison oxide with aluminium to form Aluminium oxide andison. Balance the equation |
| Answer» OK ok ok OKOK ok ok | |
| 39. |
5. EMF of a cell is measured by (A) Voltmeter(C) Galvanometer(B) AmmeterD) Potentiometer |
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Answer» D) Potentiometerplease FOLLOW me |
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| 40. |
Expain the law of parallelogram of vector addition? |
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Answer» Parallelogram LAW of vector addition states that. if two vectors are CONSIDERED to be the ADJACENT sides of a parallelogram, then the RESULTANT of the two vectors is GIVEN by the vector that is diagonal passing through the point of contact of two vectors. |
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| 41. |
Explain the triatomic gases |
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Answer» tion:Most of the gases which are a part of the earth's atmosphere are DIATOMIC. Triatomic gases: MOLECULES of these gases have three atoms and are called triatomic having ATOMICITY EQUAL to three. Some COMMON example of triatomic gases is carbon dioxide, water vapour, nitrous oxide, ozone etc. |
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| 42. |
Y Хtwo vectorsX and Yare shown. Match thefollowing(a) x-Y(b)-(XY(c) -(d) Y-(IV)(i)-a, (ii)-b, (iii)-c,(iv)-d(1)-b,(ii)-c,(ili)-d, (iv) a(1)-c,(ii)-d, (iii)-a,(iv)-bPreyinusSave & Next |
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Answer» bbbbjjjjjjjjjjjjj |
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| 43. |
A cylinder of diameter 0.2m, is resting on a rough floor. A force of 2N is applied to the top of thecylinder. What is the Torque about the point of contract?a)2NMb) 0.4NMc) 0.2NMd) 0NM |
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| 44. |
Which of the following is not a chemial change |
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Answer» Drying of clothesExplanation:Drying of clothes is a physical CHANGE because it does not involve the creation of a new substance rather it INVOLVES removal or evaporation of WATER from clothes. SINCE no new SUBSTANCES are formed and there is no loss or gain of energy, it is a physical change. |
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| 45. |
Write the uses of iron |
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Answer» Uses of ironIt is used to manufacture steel and also used in civil ENGINEERING like reinforced concrete, girders etc. Iron is used to MAKE alloy STEELS like carbon steels with ADDITIVES such as nickel, chromium, vanadium, TUNGSTEN, and manganese.please mark me as brainliest |
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| 46. |
While lifting a stone within water ,weight of body is found to be decreased due to |
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Answer» Upthrust EXERTED by water.Explanation:A water always exerts FORCE in the upward direction. This upward force is CALLED upthrust. |
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| 47. |
vector which gives position of an object with reference to the origin of a coordinate system is called ______ |
| Answer» LOCATION VECTOR or RADIUS vector ....... | |
| 48. |
Ashley DATE:PAGEthen2. A porrticle is projected with avelocity v = ai + bjcalculateof flight particleorange height and time |
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Answer» the QUESTION??Sorry for irrelevant ANSWER But UR question is not understandable |
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| 49. |
4. To increase the sensitivity of a potentiometer (A) Increase the area of cross-section of the wire(B) Decrease the current in the wire(C) Increase the current in the wireD) Increase the length of the wire |
| Answer» INCREASE the CURRENT in WIRE | |