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. |
The resistivity's of some substances are given below: Material А B C D E Resistivity (m) 1.6x10 6.4x10* 10x10* 96 x 10 100x10 Answer the following questions in relation to them giving justification for each: D Which material is best for making connecting cords? ii) Which material do you suggest to be used in beater elements? iii) You have two wires of same length and same thickness. One is made of material A and another of material D. If the resistance of wire of A is 2 Q. what is the resistance of the other wire? |
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Answer» Glaciers are melting, SEA levels are rising, cloud forests are dying, and wildlife is scrambling to keep pace. It has become clear that humans have caused most of the past century's WARMING by releasing heat-trapping gases as we POWER our modern lives. CALLED greenhouse gases, their levels are higher now than at any time in the last 800,000 years. |
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| 2. |
2. A dynamometer D is attached to two blocks of masses 6 kg and 4 kg. Forces of 20 Nand 10 N are applied on the blocks as shown in fig. The dynamometer reads(b) 20 N(C) 6N(a) 10 N(d) 14 N |
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| 4. |
आई वडील शब्दाचा विग्रह् आणि समासाचे नाव |
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Answer» can youask PLEASE this QUESTION english/hindiExplanation:this is other LANGUAGE |
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| 5. |
Pls give correct solution as soon as possible a convex mirror used for rear view on an automobile has a radius of curvature of 4m .if the bus is located 6.00m from this mirror find the position nature and size of the image. |
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Answer» The IMAGE is SMALLER,VIRTUAL and erect by a size of FACTOR of 0.23 |
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| 6. |
State the number of significant figure of 0.006m |
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Answer» tion:3 SIGNIFICANT FIGURES are in this |
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| 7. |
Hi guys Here is ur question..... What is the full form of ADP? Also its function |
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Answer» tion:Adenosine di-phospateIf a cell needs to SPEND ENERGY to ACCOMPLISH a task, the ATP molecule splits off one of its three PHOSPHATES, becoming ADP.pls mark it as the brainliest |
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| 8. |
Of following equation bydimentit check the correctnessanalysisAr la mv 2 Imu? |
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Answer» ycjtxyjzkyzmhzgdthoxitsuieh |
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| 9. |
a small stone is dropped from top of a tower . calculate ratio of distance travelled by particle in t=5 to t=10 and t=15 to t=20 |
| Answer» TION:this is thebl RATIO olkklolkkkkllolllololllllollokl | |
| 10. |
Please answer this question fastly. Those whose answer this question first and correct .I will mark the bbrainliest. |
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Answer» vxiwnhu udk9gy dkhxu. kxobu. skisvenlvue isnisbhvx mbud lzhd MIX imxhd xjx U kxi V EXPLANATION:nzka izib |
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| 11. |
A micrometer has 150 equal divisions on the circular scale,and on one full rotation ofcircular scale main scale advances by0.02 cm on the main scale. The leastcount of themicrometer (in cm) is |
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Answer» Explanation:Given : A micrometer has 150 equal DIVISIONS on the circular scale, and on one FULL rotation of circular scale MAIN scale advances by 0.02 cm on the main scale. To Find : The least count of the micrometer (in cm) is SOLUTION: micrometer has 150 equal divisions on the circular scale, and on one full rotation of circular scale main scale advances by 0.02 cm on the main scale. 1 main Scale = 150 Vernier scale Divisions 1 main Scale = 0.02 cm 150 Divisions = 0.02 cm => 1 Vernier scale Divisions = 0.02/150 cm => 1 Vernier scale Divisions = 2/15000 cm => 1 Vernier scale Divisions = 2/(1.5 x 10⁴) cm => 1 Vernier scale Divisions = 1.33 x 10⁻⁴ cm |
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| 12. |
when an object is placed at a distance of 50cm from a concave mirror the magnification produced is 1/2when should the object be placed to get a magnetication of 1/5 |
| Answer» TION:method 1.u = -50 CMM = -(1/2)m = - (v/u)-(1/2) = - v/-50V = -25 cmWe KNOW, 1/v + 1/u = 1/f⇒ 1/-25 + 1/-50 = 1/f⇒ -3/50 = 1/f⇒ f = (-50/3) cmmethod 2.m = - (1/5)f = (-50/3) cmm = - (1/5) = - (v/u)v = u/5Now,1/v + 1/u = 1/f5/u + 1/u = -3/506/u = -3/50u = 600/-3 = -100 cm | |
| 13. |
Mention the applications of colorimeter |
| Answer» TION:Calorimetry is applied EXTENSIVELY in the fields of thermochemistry in calculating the enthalpy, stability, heat capacity ETC. | |
| 14. |
Write the paragraph about heratodas or arnald toynabi |
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Answer» Toynbee (born in London on 14 April 1889) was the son of Harry Valpy Toynbee (1861–1941), secretary of the Charity Organization Society, and his wife Sarah Edith Marshall (1859–1939); his sister Jocelyn Toynbee was an archaeologist and art historian. Toynbee was the grandson of Joseph Toynbee, nephew of the 19th-century economist Arnold Toynbee (1852–1883) and descendant of prominent British INTELLECTUALS for several GENERATIONS. He won scholarships to Winchester College and Balliol College, Oxford (Literae Humaniores, 1907–1911),[1] and studied briefly at the British School at Athens, an experience that influenced the genesis of his philosophy about the decline of civilisations.In 1912 he became a tutor and fellow in ancient history at Balliol College, and in 1915 he began WORKING for the intelligence department of the British Foreign Office. After serving as a delegate to the Paris Peace Conference in 1919 he served as professor of Byzantine and modern Greek studies at the University of London. It was here that Toynbee was appointed to the Koraes Chair of Modern Greek and Byzantine History, Language and Literature at King's College, although he would ultimately resign following a controversial academic dispute with the professoriate of the College.[2][3] From 1921 to 1922 he was the Manchester Guardian correspondent during the Greco-Turkish War, an experience that resulted in the publication of The Western Question in Greece and Turkey.[4] In 1925 he became research professor of international history at the London School of Economics and director of studies at the Royal Institute of International Affairs in London. He was elected a Fellow of the British Academy (FBA), the United Kingdoms national academy for the humanities and social sciences, in 1937.[5]His first marriage was to Rosalind Murray (1890–1967), daughter of Gilbert Murray, in 1913; they had three sons, of whom Philip Toynbee was the second. They divorced in 1946; Toynbee then married his research assistant, Veronica M. BOULTER (1893-1980), in the same year.[6] He died on 22 October 1975, AGE 86. |
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| 15. |
state the relationship between line current and phase current,line voltage and phase voltage in case of star as well as delta connection |
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Answer» Three-PHASE VOLTAGE and CurrentConnection Phase Voltage Line CurrentStar VP = VL ÷ √3 IL = IPDelta VP = VL IL = √3 × IPExplanation:In BALANCED Δ circuits, the line voltage is equal to phase voltage, while the line current is equal to phase current times the square ROOT of 3. |
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| 16. |
Calculate charge flows through a current of 2.5mA for 10 minutes |
| Answer» BOMBYX MORI' catterpillar FEEDS on SORRY | |
| 17. |
The magnitude of force applied the perpendicular distance of the force from the pivoted point |
| Answer» TORQUE= FORCE * PERPENDICULAR LENGTH | |
| 18. |
SI unit of weight,mass |
| Answer» KG,GRAM is the ANSWEREXPLANATION:PLZ FOLLOW me | |
| 19. |
What is light? Write the classification of reflection and laws of reflection? |
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Answer» The reflection of light can be roughly categorized into two types of reflection. Specular reflection is defined as light REFLECTED from a smooth surface at a definite angle, WHEREAS diffuse reflection is produced by rough surfaces that tend to reflect light in all directionsthe principle that when a ray of light, radar pulse, or the like, is reflected from a smooth surface the angle of reflection is EQUAL to the angle of incidence, and the incident ray, the reflected ray, and the normal to the surface at the point of incidence all lie in the same plane.Any mirror obeys the three laws of reflection, flat, CURVED, convex or concave.The two laws of reflection are as follows: ... The incidenct ray, the reflected ray, and the normal to the reflecting interface at the point of incidence all lie in the same plane. 2. The angle of incidence equals the angle of reflectionCommon examples include the reflection of light, sound and water waves. The law of reflection SAYS that for specular reflection the angle at which the wave is incident on the surface equals the angle at which it is reflected. Mirrors exhibit specular reflection. |
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| 20. |
Q.1- The electric flux along the electric line of force (1) Decrease(ii) increase(iii) Constant (iv) None of theseatential of earth is taken |
| Answer» INCREASES. OPTION 3 is CORRECT | |
| 21. |
Conservation of energy |
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Answer» ics and CHEMISTRY , the law of conservation of energy of an ISOLATED system remains constant; it is said to be conserved overtime.... For INSTANCE , chemical energy is converted to kinetic energy when a STICK of dynamite explodes. |
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| 22. |
A ball thrown vartically upwords with the speed 9.8m/s how high will the ball rise and how long will it rise |
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Answer» Let X be the meeting POINT. Both BALLS would have traveled same time to get to meeting point, say 't' secs. Let H 1 be height traveled by ball falling down to X. Let h 2 be height traveled by ball going up to X and v be its velocity. h 1+h 2 =100m v 2=2gH=2×9.8×100=1960 Hencev= 1960 m/s h 1 = 2 1 GT 2 For the ball travelling up, h 2 =vt− 21 gt 2 =vt−h 1 h 1 +h +2 =vt Hence vt=100 t= v 100 =1960 100 secs. h 1 = 2 1 gt 2 = 21 ×9.8× 1960 100×100 = 4 100 =25m h= 2 =100−25=75mExplanation: |
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| 23. |
Deduce the following equation of motion : v=u² + 2as |
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Answer» please mark me as BRAINLIST EXPLANATION:hope it helps you to UNDERSTAND |
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| 24. |
Name all basic quantities |
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Answer» hdjddjrjrExplanation:the same as a WHOLE LOT. the MOMENT and the other DAY and the other day and the other |
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| 25. |
Find the heat needed to raise the temperature of a silver container of mass 100gm by 100Oc.(c=0.056cal/gmOc |
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Answer» 9wjsyeb iwhdedknsvsu isnshw ejwvssydhe |
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| 26. |
Derive the expression for conservation of momentum |
| Answer» NEWTON's third law STATES that for a force applied by an object A on object B, object B EXERTS back an equal force in magnitude, but OPPOSITE in direction. This idea was used by Newton to derive the law of conservation of momentum. ... B=m_{2}(v_{2}-u_{2}) (change in momentum of particle B) | |
| 27. |
Hi guys plzz answer this Q1. A steel wire of length 4.7 m and cross-sectional area 3.0 × 10-5 m2 stretches by the same amount as a copper wire of length 3.5 m and cross-sectional area of 4.0 × 10–5 m2 under a given load. What is the ratio of the Young’s modulus of steel to that of copper?NOTE :. No spam⚠️❌❌ plzz nd if u don't know then plzz don't hesitate me by answering plzz it's my humble request to all |
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Answer» rning........❤Have a nice day........Happy Happy wala BIRTHDAY dear......... ❤ vaise aapka birthday aaj hi hai na maine toh wish kardiya dear........ ❤Main Ab 1.00 vaje online HONE wala hoonAbhi mujhe school jana hai OK dear..... Bye Take CARE |
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| 28. |
Work may be classified into how many types? Define each of them. Class 9 NCERT |
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Answer» Different Types Of Work Work is defined as the force ACTING on a BODY which is responsible for the displacement of the body. Work is MEASURED as a constant force and is the dot product of force and displacement. W = F.S.cosq Where, F is the force S is the displacement q is the angle between F and S Work is a scalar quantity and is the product of two vector quantities. Depending on the value of q, there are three types of work: When q = 0°, work is said to be positive. STRETCHING of the spring is an example of positive work as the force is acting in the direction of displacement of the spring. When q = 180°, work is said to be negative. The frictional force is an example of negative work as the force is acting in the opposite direction. When q = 90°, work is said to be zero. For a body moving a circular path with a centripetal force acting on it with zero speed, the force will be at the RIGHT angleExplanation: |
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| 29. |
A body covers the first one-third of the distance with a velocity 'a', the second one-third of the distance b) 3v11with a velocity 'b' and the remaining with a velocity 'c'. The average velocity is[ ]1a)ab + bc +ca33abcb)ab + bc +caatbtc1 1+ +ab c с3If the velocity is |
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Answer» n : A body covers the first one third distance with a velocity 'a', the second one third of the distance with a velocity 'B' WND the remaining with a velocity 'c'. The AVERAGE velocity is : Solution : Let the total distance covered by the body is d. We know that, Velocity = Displacement/Time For the first one third of distance, For the second one third of distance,For rest of the distance,We know that, From equations (1),(2) and (3) : Average velocity of the body is 3abc/ab + bc + ca |
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| 31. |
kargil war to her school at a distance of 1 km with a speed of 2 kilometre per hour and come back with a speed of 30 km per hour calculate the average speed of girl round trip in kilometre per hour |
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Answer» I think the answer is 16 KM per hour i am a SMALL KID if I am wrong tell me the RIGHT answer |
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| 32. |
मोटर के स्टार्टर का मुख्य कार्य क्या है |
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Answer» can you plz WRITE it in the english LANGUAGE andExplanation:hope hope you understood that have a great DAY today and TOMORROW thank you |
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| 33. |
विद्युत वाहक बल एवं विभवांतर में अंतर |
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Answer» विद्युत वाहक बल और विभवांतर में अंतर।के विभवांतर को विद्युत को विभवांतर कहते हैं। वाहक बल कहते हैं। पर भी इसका अस्तित्व पर इसका अस्तित्व नहीं रहता है। ... विभवांतर से अधिक होता वाहक बल से कम होता है।Explanation:I THINK it is HELPFUL for you.please FOLLOW me and MAKE me a BRAINLIST |
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| 34. |
an object placed at distance of 4 centimetres in front of a convex mirror whose focal length is 5 centimetres.where is image formed |
| Answer» OBJECT Distance (u) = 4 cm (negative) focal length of the lens (F) = 5 cm we know, convex mirror ALWAYS forms the virtual, upright and diminished. Also, object distance in the convex mirror os always negative where as image distance and focal length are positive. Now, Applying the mirror's formula, 1/f = 1/v + 1/u 1/5 = 1/v +1 1/5 = (4-v) /4V 4v = 5(4-v) 4v = 20-5v 9v = 20 v = 20/9 = 2.222 _______________________________________________Hope it helps If helped mark me as the BRAINLIEST_________________________________________________- | |
| 35. |
Cr (OH)3 + IO3- ------------ I- + cro4-2 Balance the equation in basic medium |
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Answer» (OH)3 + IO3- ------------ I- + cro4-2 BALANCE the equation in BASIC MEDIUM |
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| 36. |
What is the value of e( exponent) |
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Answer» The exponential CONSTANT is an important mathematical constant and is given the symbol e. Its value is approximately 2.718. It has been found that this value occurs so frequently when mathematics is used to MODEL physical and ECONOMIC phenomena that it is convenient to write simply e.Explanation:PLEASE mark me as brainiest. |
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| 37. |
Find voltage across A and B |
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Answer» ohms law = VOLTAGE ÷ acceleration acceleration = voltage ÷ OHM Explanation:A= 6÷1 A= 6 volt B= 3÷2 B= 1.5 volt |
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| 38. |
At sea level , the atmospheric pressure= 1.40*10^5pa assuming g =10m/s^2 and density of air to be uniform and equal to 1.3 kg/m^3, find hight of the atmosphere |
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Answer» that pressure=ρ×g×hSo, H= pressure/p×g ⇒h= 1.04×10⁵ /10×1.3=8000myour ANS is 8000 |
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| 39. |
Give an activity to describe about reaction of metals with oxygen. |
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Answer» mark as BRAINLIEST ANSWEREXPLANATION:When a metal REACTS with oxygen, a metal oxide forms. The general EQUATION for this reaction is: metal + oxygen → metal oxide. Rust is a form of iron oxide and it forms SLOWLY when iron is exposed to air. Iron can be transformed to steel (an alloy), |
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| 40. |
Calculate the total amount of heat energy required to convert 100g of ice at -10°C completely into water at 100°C. Specific heat capacity of ice = 2.1J g^-1 K^-1, specific heat capacity of water = 4.2 J g^-1 K^-1, specific latent heat of ice = 336 J g^-1. Solve and give step by step explanation. |
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Answer» Steam of mass 11.0 G at 100°C is added to 114.8 g of ICE at 0.00°C. FIND the FINAL TEMPERATURE of the system. |
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| 41. |
show that lorentz transformation reduce to gallilean transformation when the velocity of light become infinite |
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Answer» at learnt age transformation REDUCES to GALLIUM transformation in the velocity of LIGHT becomes infinitedancer will be if a lawn tennis transformation REDUCER to climb transformation we can see correct reading of light and it becomes infinite what if we REDUCE the transformation of loan tej when it will slowly convert to gallium and there will be no transformation of light into infinite |
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| 42. |
what are the advantages of connecting electrical devices in parallel with battery instead of connecting them in series |
| Answer» RALL resistance of the CIRCUIT becomes low and therefore HIGH amount of CURRENT will flow through the circuit.It may RESULT in breakdown of low rating devices and also undesired heating effect of current. | |
| 43. |
What is the difference between resultant velocity and resultant speed class 11th vector |
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Answer» is the RESULTANT velocity is equals to the displacement UPON time where is the resultant speed is equals to the DISTANCE upon timemark me as BRAINLIEST really required |
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| 44. |
Why units used in present is more reliable than units used in past...? |
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Answer» We need standard UNIT for measurement to make our judgement more RELIABLE and accurate. For proper dealing, measurement should be same for everybody. THUS there should be uniformity in measurement. For the SAKE of uniformity we need a common set of units of measurement, which are CALLED standard units. |
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| 45. |
Hey evry 1 gd 98(◍•ᴗ•◍)❤(◍•ᴗ•◍)❤(◍•ᴗ•◍)❤ |
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Answer» for POINTS ................................EXPLANATION:PLS MARK me BRANLIEST |
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| 46. |
How can uh determine approximate focal length of convez lens? |
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Answer» By moving the convex LENS to and FRO along the scale, focus a distant object on wall. The IMAGE which forms on the wall is very near to the focus of the lens and the DISTANCE of the lens from the image is read directly by the metre scale. This gives the approximate focal length of the lens.Explanation: |
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| 47. |
Among the given sets of physical uantities, the set which cannot correspond hypothetical set of fundamental quantity is (A) Length, time, speed (B) Mass, speed, energy (C) Force, energy, length (D) All of the above |
| Answer» C ANSWER is CORRECT | |
| 48. |
What is physics? write definition |
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Answer» , SCIENCE that DEALS with the structure of matter and the interactions between the fundamental CONSTITUENTS of the observable universe. In the BROADEST sense, physics (from the Greek physikos) is concerned with all ASPECTS of nature on both the macroscopic and submicroscopic levels.please follow me. |
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| 49. |
7 if two quantities have different dimensions, is it possible to multiplyand/or divide. Can we add and/or subtract them? V questa |
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Answer» the ANSWER is EXPLANATION:the answer is |
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| 50. |
How can u explain that an object is in uniform circular motion |
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Answer» Uniform circular MOTION can be described as the motion of an OBJECT in a circle at a constant speed. As an object moves in a circle, it is constantly changing its DIRECTION. At all instances, the object is MOVING tangent to the circle. |
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