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. |
36.Out of the two wires P and Q point shown below, which one hasgreater resistance? Justify it.P РA2QOA127PESTE |
| Answer» TION:PLZ CHECK it where is the FIGURE | |
| 2. |
2. ]a) 8 =(x-1) A b) 8 = (x+1) A c) 8=(A-1) u d) 8 =(A+1) 4If the refracting angle of a prism is 60° and minimum deviation is 30°, the angle of incidence will beb) 45°[ ]A ray of light passes through an equilateral glass prism in such a manner that the angle of incidence isto (3/4) of the angle of prism. Thea) 30°c) 60°d) 90°3.is eaus |
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Answer» tion:Let δ m be the angle of minimum deviation A=δ m A=δ m μ= sin( 2A )sin 2(A+δ m ) 1.5= sin( 2A )sin( 2A+A ) 1.5= sin( 2A )sin2( 2A ) = sin( 2A )2sin 2A COS 2A 1.5=2cos 2A 0.75=cos 2A 2A =cos −1 (0.75)2A =41 o A=82 o like this answerplzz tap to BRAINLEST answer&FOLLOW me |
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| 3. |
What is the resistence of a resistor colour coded red red orange |
| Answer» GIVE ME A BRANLIAST ANSWER AND FOLLOW MEColor ValueRed ±2%Orange ±3%YELLOW ±4%GREEN ±0.5% | |
| 4. |
So, the speed of light List the new Cartesian sign convention for reflection of light by spherical mirrors.Draw a diagram and apply these conventions for calculating the focal length andnature of a spherical mirror which forms a 1/3 times magnified virtual image of anobject placed 18 cm in front of it.TAll India)mirrors are as follows: |
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Answer» The following sign convention is used for measuring various distances in the ray diagrams of spherical mirrors:OBJECT is always placed to the left of mirrorAll distances are MEASURED from the pole of the MIRROR.Distances measured in the direction of the incident ray are positive and the distances measured in the direction opposite to that of the incident rays are negative.Distances measured along y-axis above the principal axis are positive and that measured along y-axis below the principal axis are negative.Since the image formed is magnified and virtual, the mirror is convex.According to the conventionu=−18cmm=1/3=− uv ⟹v=6cmFrom mirror equation,v1 + u1 = f1 ⟹f= u+vuv ⟹f=9cmExplanation:please MARK me as Brainliest ANSWER |
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| 5. |
A piece of paper dimension 1.5 metre ×20 CM has area |
| Answer» 3000 cm sqExplanation:DIMENSION= 1.5m and 20cm. FIRST of all we should change (m) into (cm) So, 1.5 m =1.5 x 100= 150cm Formula: AREA= length * breadth = 150 * 20 = 3,000cm^2 | |
| 7. |
Y У f-son 28F = 150k1 four forces act on bolt Aas shownDetermine the resultant of theforces on the bolt.F4100N136+J50xEz = 11ON |
| Answer» TION:आई डोंट नो व्हाट टू से वेरी सॉरी आई डोंट नो व्हाट टू से 30 मार्च से | |
| 8. |
What are ohmic and non ohmic conductor? give example. show graphically. |
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Answer» V - I GRAPH for an ohmic MATERIAL is a straight line passing through origin. Examples is a RESISTOR made of manganin. V - I graph for a non-ohmic material is a CURVE, i.e., non-lienear or straight line not passing through origin. Example is JUNCTION diode or electrolyte.Jul |
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| 9. |
The output (X) of the logic circuit shown in figure 25.will be :A.B.--X(1) X = A +B(2) X=ABZ WODEO2 BOAL-BO WEET UG 11 YRSI2009.2019 ANGL201410AHNAS(3) X = A.B(4) X = A.BEE |
| Answer» TION:सॉरी आई डोंट नो 2 आंसर | |
| 10. |
Newtown first law of motion |
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Answer» if an OBJECT is it MOTION it will STILL in motion and if the object is in REST it will still rest |
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| 11. |
Find derived unit for the density |
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Answer» density=mass*volumedensity =kg/m^3when you have to find UNIT, then find the formula correlating that thing..HOPE it HELPS you....pls MARK as brainliest ans.... |
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| 12. |
वोल्टता को koन निरूपितकारता |
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Answer» एक आदर्श वोल्टेज स्रोत एक बिजली की आपूर्ति है जो आपको किसी भी वोल्टेज ड्रॉप के बिना सेट वोल्टेज पर वर्तमान की अनंत राशि दे सकती है। यह लोड प्रतिरोध या आउटपुट करंट से स्वतंत्र है। |
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| 13. |
. A thermally insulated vessel with nitrogen gas at 27 °C is moving with avelocity of 100 ms. If the vessel is stoppedsuddenly, the percentage change in the(Assuem entire loss in KE of the gas as heatto gas and R = 8.3 Jmol K-1)1) 1.1 2) 0.933) 0.5 4) 0.25nirs for Sri Chaitanya J |
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| 14. |
a particle starts moving from rest under a constant acceleration, if it travels a distance x in the sec. what distance will it travel in next t sec |
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Answer» Here INITIAL velocity ,u=0 Distance, S=xAcceleration, a=aTime, t=tAccording to second equation of motionS=ut+12at2⇒ X=0×t+12at2Or x=12at2 −−−−(1)Now when time is doubledi.e. t=2tThen \ S=12a(2t)2Or S=4×12at2Or S=4x [using value of x from equation (1)]Thus distance covered in last t SECONDS= distance covered in 2t seconds - distance covered in first t secondsOr S′=S−x=4x−x=3xAnother approach to this problemHere initial velocity ,u=0Distance, S=xAcceleration, a=aTime, t=tAccording to second equation of motionS=ut+12at2⇒ x=0×t+12at2Or x=12at2Or at2=2x −−−−(1)According to 1st equation of motionFinal velocity, v=u+atOrv=0+at=atLet Distance covered in next t seconds = S'And initial velocity in this CASE is vi.e. u=atAccording to 2nd equation of motionS′=ut+12at2Or S′=at.t+12at2Or S′=at2+12at2Or S′=(1+12).at2Or S′=32at2Using value of at^2 from equation (1)S′=32×2x=3x |
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| 15. |
Is the device used in a vehiclewhich shows its speed at that instant. |
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Answer» I THINK it will be SPEEDOMETER |
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| 17. |
1. Consider a thin square sheet of side L and thickness 4, made of a material of resistivity p. The resistance between two opposite faces,shown by the shaded areas in the figure is(JEE 2010)(a) directly proportional to L(b) directly proportional to t(c) independent of L(d) independent of tFig. 23.9 |
| Answer» TION:PLEASE FOLLOW me if you LIKE my SOLUTION | |
| 18. |
Frictional force is an example of positive work done * 1 pointTrueFalse |
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| 19. |
मानसून पूरे देश को एक सूत्र में बनता है इस कथन की समीक्षा कीजिए |
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Answer» को पूरे भारत को एक सूत्र में बांधने वाला इसलिए समझाया जाता है, क्योंकि भारत एक कृषि प्रधान देश है और भारत की पूरी कृषि व्यवस्था मानसून पर आधारित है। भारत में पारंपरिक कृषि का प्रचलन अधिक है, जो पूरी तरह मानसून पर आधारित कृषि होती है। भारत का कोई सा भी भाग हो, चाहे वह उत्तर हो, दक्षिण हो, पूरब हो या पश्चिम हो, हर जगह मानसून का बेसब्री से इंतजार रहता है, क्योंकि यह ना केवल कृषि के विकास के लिये जरूरी है, बल्कि जल की आपूर्ति का भी एक साधन है। भारत में जल का वितरण और कृषि के विकास की प्रक्रिया पूरी तरह मानसून पर निर्भर होती है। मानसून के आगमन का पूरे देश में बड़े जोरों से स्वागत किया जाता है। भारत के अनेक क्षेत्र में मानसून के आगमन के स्वागत के लिए अनेक तरह के उत्सव मनाये जाते हैं। मानसून भीषण गर्मी से राहत प्रदान करता है और यह पूरे भारत में एक नवजीवन का संचार करता है। भारत के लोगों का संपूर्ण संपूर्ण जीवन और अर्थव्यवस्था मानसून पर ही आधारित है, इसलिये मानसून को भारत में एक सूत्र में बांधने वाला समझा जाता है।☼☼☼☼☼☼☼☼☼☼☼☼☼☼☼☼☼☼☼☼☼☼☼☼☼☼☼☼☼☼☼☼☼☼☼☼ |
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| 20. |
Two trains A and B are moving in parallel tracks with velocities of 60kmh-¹ and 90kmh-¹ respectively but in opposite direction Find i)when will the relative velicity of the two trains be zero |
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| 21. |
draw a ray diagram to show the formation of image by concave mirror. for the object. beyond its. centre. of curvature. state. three. characteristics. of image |
| Answer» JECT is placed between the centre of curvature and focus of a concave mirror, the image is formed beyond the centre of curvature, it is REAL, INVERTED and larger than the OBJECT. (b) One use of concave mirror based on the formation of image as in case (i) above: As a shaving mirror. | |
| 22. |
& which of the following is not an exampleof the toorce of gravity? |
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Answer» A boy pushing a cart MEANS both the boy and the cart are already on the ground. So the boy uses his muscular energy to PUSH the cart along the level pane. So it is not an EXAMPLE of gravity, while all the other OPTIONS are example of gravity in play.please mark me as brainliest answer and give thanks |
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| 23. |
. The efficiency of carnot engine is when its hot and cold reservoirs aremaintained at temperature T, and T,1.5n, the increase in temperature (deltaT)of the hot reservoir by keeping the coldone constant at T, isST. |
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Answer» hryurur7r7r7syyeudyqyyey26eywettet |
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| 24. |
A fBQ10.IThe rectangle shown in Figure has sides parallel to the x and y axes. Theposition vectors of two corners are A = 10.0 m at 60.0° and B = 12.0 m at 30.0°.a) Find the perimeter of the rectangle.b) Find the magnitude and direction of the vector from the origin to the upper-right cornerof the rectangle.c) Find unit area vector. |
| Answer» HEY MATE so SORRY but PLZ WRITE questiogly | |
| 25. |
जोड़ों की चोटों के प्रकार कारण उपचार के बारे में लिखें |
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| 26. |
Discuss the working of cyclotron in detail |
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Answer» A CYCLOTRON is a machine that accelerates charged particles or ions to HIGH ENERGIES. ... In a cyclotron, charged particles accelerate outwards from the centre along a spiral path. These particles are held to a spiral TRAJECTORY by a static magnetic field and accelerated by a rapidly VARYING electric field |
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| 27. |
Can you make mirror in glass or glass in mirror ? explain |
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Answer» rn mirrors, metals like SILVER or ALUMINUM are often used due to their high REFLECTIVITY, applied as a thin coating on glass because of its naturally smooth and very HARD surface.Pls mark this answer pls pls and have a great DAY |
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| 28. |
Calculate the number of atom in each of the following a. 52 moles of He. b. 52g of He c. 0.1 mole of H2SO4 |
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Answer» a) 1 mole of He has 6.023 X 10^23 atoms. 52 MOLES of He has 52 x 6.023 x 10^23 = 313.196 x 10^23 atoms. b) 52 g of HE1 mole of He has 4 g. 4 g = 6.023 x 10^2352 g = 52 x 6.023 x 10^23 / 4 = 78.299 x 10^23 atoms..C) 0.1 mole of H2SO4 = 1 mole of H2SO4 contains 6.023 x 10^230.1 mole of H2SO4 contains 6.023 x 0.1 x 10^23 = 0.6023 x 10^23 |
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| 29. |
मनोविज्ञान की परिभाषा व खेल मनोविज्ञान क्या है विस्तारपूर्वक लिखो। |
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Answer» ඵෞපෞඵෞඖපූඨෙඵෙඵ මෙන්න මගෙනුත් සුබ පැතුම් |
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| 32. |
when you are listening to song by using a small radio it gives a lot of disturbance when you changing the direction why? |
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Answer» because it gsgsnssnshshshsbhope you LIKE it |
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| 33. |
What is use of the merged cells option |
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Answer» the documents explain how to Merged within aur version Microsoft Excel Merging cells is USED when title is to be centered particular section hop SPREAD sheet when a GROUP sale in in merged |
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| 34. |
How can be the current sensitivity of a galvanometer |
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Answer» tion:The current sensitivity of a galvanometer is defined as the deflection produced when unit current passes through the galvanometer. A galvanometer is said to be sensitive if it produces large deflection for a small current. (iv) DECREASING the COUPLE per unit TWIST of the suspension wire.if U like the ANS plz mark me brainlist and follow me |
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| 35. |
What is the value of 1 Horse Power in Watts? |
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Answer» Explanation:735.499 |
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| 36. |
Find the potential drop across the resistor when 15mA current flow through 500 joule |
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Answer» vdirirr8rurhrhd9jdruruExplanation:yuegguevbehs 3AND rye6f377frh73urbuefshmsidisndidbbdjndbdhidjnrhudhebrhdghd fhrujdjdhdjej DR d jdejend did not d R r r re rjt r r IRRI |
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| 37. |
State the first law of thermodynamics. Express it in mathematical form |
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Answer» The MATHEMATICAL expression which is USED to represent the first LAW of thermodynamics is ΔE = Q-w, where ΔE refers to the internal energy CHANGE of the system when ‘w’ amount of work is done by the system when it absorbs ‘q’ amount of heat and carries out ‘w’ amount of work.Explanation:the first law of thermodynamics is a version of the law of conservation of energy, adapted for thermodynamic processes, distinguishing two kinds of transfer of energy, as heat and as thermodynamic work, and relating them to a function of a body's state, called Internal energy. The law of conservation of energy states that the total energy of an isolated system is constant; energy can be transformed from one form to another, but can be neither created nor destroyed |
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| 38. |
The mass of an oxygen atom is 16.00 u. find its mass in kg? |
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Answer» 0.016Explanation:Its Molar Mass will Be 16 Because if We Find Molar Mass Just See A.M.U. Of any Elements ATOM .. And Apply just G{GRAM} .. this will became Its Molar mass . we Know that ,1000g = 1 kg 16G = ? 16 g ÷ 1000 = 0.016 kg I hope u like It .. Make sure To hit thanks |
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| 39. |
Two conducting wires X and Y of same diameter across a battery. If the number density of electro in X is twice that in Y, find the ratio of drift velocity of electrons in the two wires |
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| 40. |
Deduce an expression for galvanometer to ammeter |
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Answer» If the current IG in the coil produces a full-scale deflection , then the current I in the circuit corresponds to the full-scale deflection . Thus , with a shunt S of the above value , the GALVANOMETER will be an ammeter of range 0 to I ampere (A) . S / G = 1 / 9 EXPLANATION: Hope it'll help you frnds... Mark me as brainliest.... If you can follow me and I'll also follow u |
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| 41. |
कबडडी खेल का इतिहास, कौशल व शब्दावली लिखे। |
| Answer» TION: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। इस मैच | |
| 42. |
If the critical angle for total internal reflection from a medium to vacuum is 30°, the velocity of light in the medium is[ ]a) 3 x 108 m/sb) 1.5 x 108 m/sc) 6 x 108 m/sd) 13 x 108 m/s |
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| 43. |
Please solve and send me answer |
| Answer» PLEASE solve and send me answerExplanation:PICTURE IS NOT CLEAR | |
| 44. |
list out the instruments used to measure the volume of liquids and explain with an activity form how to measure the volume of milk |
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Answer» Volumetric CYLINDERS and volumetric flasks are used to MEASURE volume of LIQUIDS contained in them. They are calibrated for volume INCLUDED in them - this is indicated by the marking "IN". |
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| 45. |
IV. 23.-A particle performs S.H.MA of amplitude10cm, it: maximum velocity duringoscillations is 100cm/s. What is itsdisplacement, when the velocity is.60 cm/s? |
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Answer» The LUCID (LUminosity Cherenkov Integrating Detector) apparatus is composed by two SYMMETRIC arms deployed at about 17 m from the ATLAS interaction point. The purpose of this detector, which will be installed in january 2008, is to monitor the luminosity delivered by the LHC machine to the ATLAS experiment. An absolute luminosity calibration is needed and it will be provided by a Roman Pot TYPE detector with the two arms placed at about 240 m from the interaction point. Each arm of the LUCID detector is based on an aluminum vessel CONTAINING 20 Cherenkov tubes, 15 mm diameter and 1500 mm length, filled with C4F10 radiator gas at 1.5 bar. The Cherenkov light generated by charged PARTICLES above the threshold is collected by photomultiplier tubes (PMT) directly placed at the tubes end. The challenging aspect of this detector is its readout in an environment CHARACTERIZED by the high dose of radiation (about 0.7 Mrad/year at 10^33cm^2 s^-1) it must withstand. In order to fulfill these radiation hardness requirem... |
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| 46. |
What is the electrostatic potential due to an electric dipole at an equatorial point? |
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Answer» Electric potential at any point in the EQUATORIAL plane of dipole is zero. The electrostatic FORCE on a small SPHERE of charge 0.4 μC due to ANOTHER small sphere of charge –0.8 μc in air is 0.2 N.Explanation:FOLLOW and thank me |
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| 47. |
39 R.2X10A particle moving with velocity v is acted by threeforces shown by the vector triangle PQR. Thevelocity of the particle will:4PRQchange according to the smallest force QŃ(2)increase(3)decreaseremain constant |
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| 48. |
Volletता को निरूपित करता है |
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Answer» volletedhh G hngh ' dkdiSsiAdxdjd |
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| 49. |
Draw ray diagram for (a) reflection of plane wavefront by a concave mirror (b) refraction of plane wavefront by a convex lens. |
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Answer» tion:THERETHERE are angle of INCIDENT angle of reflection incident ray reflected ray you draw this all in your notebook PLEASE mark me as brainliest and GIVE me points |
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| 50. |
2. The equation of an alternating voltage is V = 100/2 sin 100nt volt. The RMS value of voltage and frequencywill be respectively(1) 100 V, 50 Hz(2) 50 V, 100 Hz(3) 150 V, 50 Hz(4) 200 V, 50 Hz |
| Answer» FREQUENCY is nothing but COEFFICIENT of t in the equation,so we have we get RMS VOLTAGE is So option A is CORRECT. | |