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. |
Long answer type Questions. Q1: State universal law of gravitation. Derive a mathematical expression for it with the help of diagram. |
| Answer» TION:an defghijklmnopqretuvw YZ | |
| 2. |
Decrease the speed of rotation of armature coil |
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Answer» we have to STOP it's ROTATION by PUSHING it and then it will stop |
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| 3. |
Why coloumb law applicable only for point charges |
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Answer» 's law is APPLIED to point charges because there are "problems" applying it to a charge that has "DIMENSION" to it. A charge is surrounded by an ELECTRIC field. If we cannot treat it as a point, then the charge has to be "DISTRIBUTED" through the "body" of the charge. |
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| 4. |
3 Draw the variation of the magnetic field with manyetie intensity when a ferromagnetic material subjected to a eyele of magnetization |
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Answer» The VARIATION of magnetic FIELD (B) with magnetic INTENSITY (H) ..... |
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| 5. |
Prou CoutoutT. 97The troue pereed of opcellohou of spimple.pendellem .Re girer by T = anrewhat PÅ the accerroig per thedetermixolou of g 29 room18 to con lengte. Po kerowy do imonAcortocy, and Bosshme perfod. de moogused from timeof 100. Ostellation with a watch of Isecond.repo leefpoer ? ? |
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Answer» . lbcjljπ×|πש™{89,8856756753575553755755756 |
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| 6. |
Write short note about "System of unit" |
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Answer» The SYSTEM allows for an unlimited number of additional units, called derived units, which can always be represented as products of powers of the base units....International System of Units.SI base unitsSymbol Name Quantitykg kilogram massA ampere electric currentK KELVIN thermodynamic temperature |
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| 7. |
An automobile is moving on a horizontal road with a speed 0. If the coefficient of friction between the tyres and the road is , show that the shortest distance in which the automobile can be stopped is 20 /2g. |
| Answer» TION:when KINETIC energy of AUTOMOBILE will totally convert into the the frictional loss than distance travelled by automobile will be SHORTEST distance .SEE picture | |
| 8. |
Read the following statement carefully. Rewrite the statement if there is any mistake. (a) Unit of speed is M/S. (b) The length of a table is 10m25cm. |
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| 9. |
a wire has resistance of 12 ohms it is bent in the form of an equilateral triangle the effective resistance between any two corners of the triangle is |
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Answer» 8/3ΩExplanation:resistance of WIRE is PROPORTIONAL to its length so,each SIDE of TRIANGLE has 4Ω resistance |
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| 10. |
Please answer this, i will mark brainliest if you do. ALL the questions please |
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Answer» udowbu jkdib hjeo uenosg midbu HYE jdio tiir iof8 8eivt udkvt kctjaovTV kshinkyv |
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| 11. |
How is the electricity bill of a household calculated? if a 100 W electric bulb is lighted for 20 hours how much electrical energy will be consumed ? Also, find the cost, if 1 unit cost ₹4 (Please Answer Correctly Its Very Important) |
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Answer» -☄ Power of BULB, P = 100W = 0.1 kW☄ Cost of 1 UNIT (kWh) = ₹ 4☄ Time, t = 20hTo find :-the electric energy consumed and the costSolution :-The electrical energy consumed by an electrical appliance is given by the product of its power rating and the time for which it is used.➠ Electrical energy, E = P × t➠ E = 0.1 × 20 kWh➠ E = 2 kWhso, the electrical energy consumed is 2kWh.Cost of 1 unit = ₹4Cost of 2 unit = ₹(2 × 4) = ₹8the cost of tht electrical energy consumed is 8Rs.#sanvi.... |
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| 12. |
What is mean by tribe or tribal people |
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Answer» A tribe is a group of people who live and work TOGETHER in a shared geographical area. ... A tribal society is a group of tribes organized around kinships. Tribes REPRESENT a part in social evolution between bands and nations. A tribe can be a collection of families or of families and INDIVIDUAL people living together.Explanation:hope it will help YOUPLEASE MARK me brainliest |
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| 13. |
Two particles of equal mass go round a circle of radius R under the action of their mutual gravitational attraction.The speed of each particle is |
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Answer» Masses of the two particles are m1=m2=mAnd RADIUS of the two particles are r1=r2=RSo ,The Gravitational force of attraction between the particles ______(i)As, centripital force ______(ii)From GIVEN condition (1) and (2)So the speed of the each PARTICLE is |
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| 14. |
A 1.5 cm high object is placed at a distance of 32 cm from a concave mirror. The image formed is real, inverted and 3 cm in size. Find the focal length of the concave mirror. Also find the position of the image formed. Pls be quick |
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Answer» tion:What would you like to ASK?PHYSICSA 2 cm high object is placed at a distance of 32 cm from a CONCAVE mirror. The image is real, inverted and 3 cm in size. FIND the focal LENGTH of the mirror and the position where the image is formed.ShareStudy laterANSWERImage is inverted so magnification must be negative. m= objectheightimageheight = 2−3 =−1.5Also object distance is u=−32cmWe know m=− uv −1.5=− −32v Position of object from lens is v=−48cmWe know F1 = v1 + u1 f1 = −481 + −321 f=−19.2cm |
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| 15. |
The acceptable solutions of wave functions of Schrodinger equation are |
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Answer» Schrodinger equation gives us a detailed account of the FORM of the WAVE functions or PROBABILITY waves that control the motion of some smaller particles. The equation also describes how these waves are INFLUENCED by external factors. |
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| 16. |
1. Q: A car moved 80 km to the South. What is its displacement? A: 20 km SouthB: 50 km EastC: 80 km SouthD: 160 km North |
| Answer» NORTH EXPLANATION:This is the ANSWER | |
| 17. |
Three difference between sound wave and light wave |
| Answer» LIGHT waves are ELECTROMAGNETIC waves while sound waves are mechanical waves. Light waves are TRANSVERSE while sound waves are longitudinal. Light waves can travel in VACUUM. Sound waves require a material MEDIUM to travel, and hence, cannot travel in vacuum. | |
| 18. |
what is the solid angle subtended by the moon at any point of the earth given the diameter of the moon is 3474 kilometre and its distance from the earth 3.84 into 10 raise to 8 metre |
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Answer» n:What is the SOLID angle SUBTENDED by the moon at any point of the earth GIVEN the diameter of the earth given of the moon is 3474KM and its distance from the earth .Solution:Given:Diameter of the moon = 3474kmDistance from the earth = To find:Solid angle subtended by the moon.How to solve:Diameter of the moon,D = 3474kmRadius of the moon, R = = = 1737 kmArea = πr²= (3.14) (1737)² = The distance from earth = Squaring this value:r² = = Now, the solid angle in steradians isΩ = Ans = |
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| 19. |
What is the main reason for getting an emf while doing this process? |
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Answer» The emf is due solely to the CHEMISTRY in the BATTERY that CAUSES charge separation, which in turn creates an electrical voltage that drives the current. For a circuit CONSISTING of an electrical GENERATOR that drives current through a resistor, the emf is due solely to a time-varying magnetic field within the generator that generates an electrical voltage that in turn drives the current. |
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| 20. |
Calculate the work done to take an object of mass 20kg to a height of 10m |
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| 21. |
[37] A body is displaced from (0,0) to (lm, 1m)along the path x=y by a forceF = (zºj + yi) NThe work done by this force will beOJ |
| Answer» 37] A body is displaced from (0,0) to (LM, 1m) along the path x=y by a FORCE. F = (zºj + YI ) N The WORK done by this force will be. OJ.#kannadiga# | |
| 22. |
For a particle's journey, the magnitude of average velocity is 20 m/s. Which among the following cannotbe the value of average speed? |
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| 23. |
a car covers (3/5) th distance at the speed of 72 km /h an the rest of distance with 54 km/h the average speed of the car for complete journey is |
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Answer» n :Let the total distance covered by the car be d From point A to B SPEED (s)= 72 km /HR = 72 x 5 / 18 = 20 m/sDistance(d) = 3d / 5 We know that ,➝ s = d / tOn rearranging ,➝ t = d / s ➝ t = 3d / 5 x 20➝ t = 3d / 100 From point B to C Speed (s)= 54 km /hr = 54 x 5 / 18 = 15 m/sDistance(d) = d- 3d / 5 = 2D / 5 We know that ,➝ s = d / tOn rearranging ,➝ t = d / s ➝ t = 2d / 5 x 15➝ t = 2d / 75The average speed of the car is 17.64 m /s |
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| 24. |
Calculate the number of moles and molecules of Acetic acid ch3cooh present in 1222 gram of |
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Answer» ber of moles is 0.367 and the number of molecules of acetic acid is 2.21× 10²³. EXPLANATION: Acetic acid has the FORMULAE as CH3COOH. As we KNOW, the number of moles = MASS/ Molar the number of moles and molecules of Acetic acid ch3cooh PRESENT in 1222 gram=0.367*2.21× 10²³*1222 = 991.12754*10²³ |
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| 25. |
Two balls are thrown with some speed at the time with angles of projection & andB with horizontal if they hit the topand bottom of a pole at the same timerepectively then |
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| 26. |
If an object is erect and placed in front of a spherical mirror, the height of the object isalways taken negative.true or false |
| Answer» BRAINLIEST and follow.....False - The HEIGHT in perpendicularly upward direction is taken POSITIVE. And ERECT MEANS height in upward direction. Mark as brainliest for the answer | |
| 27. |
A uniform chain of mass 10 kg and length 10 m is hanging on two smooth pulley in equilibrium such that each vertical part have length 3m. Find tension atthe mid point of string A between the pulleys (Neglect the length of string on the pulley) :-MА30 N |
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| 28. |
If 62.24 cm is divided by 2.0 s, the result upto appropriate significant figures is |
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| 30. |
In biprism experiment the slit is illuminated with light of wavelength 6000A how many brigth fringes will pass a point on the screen of the path difference is altered by 0.006 cm |
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Answer» tion:Fringe width is given by β= dλD In the first case, λ 1 =6000 A ∘ =6000×10 −10 mβ 1 =6 mm=0.006 m∴0.006=6000×10 −10 dD ....(1)In the SECOND case, the DISTANCE between the SLITS and the screen is 2D ,β 2 =4 mm=0.004 m∴0.004=λ 2 × d2D ....(2)Directing equations (2) by (1) we get0.0060.004 = 2×6000×10 −10 λ 2 λ 2 = 0.0060.004×2×6000×10 −10 λ 2 = 0.00648×10 −10 λ 2 =8000×10 −10 λ 2 =8000 A ∘ . |
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| 31. |
K2Cr2O4 + BaSO4 ___________________What does this gives? |
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| 32. |
A micrometer has 150 equal divisions on the circular scale, and on one full rotation of circular scale main scaleadvances by 0.02 cm on the main scale. The least countof the micrometer (in cm) is4 x 10-56.21 x 10-31.33 x 10-41.21 x 10-2 |
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Answer» A micrometer has 150 equal divisions on the circularscale, and on ONE FULL rotation of circular scale main scaleadvances by 0.02 cm on the main scale. The least COUNTOF the micrometer (in cm) IS4 x 10-56.21 x 10-31.33 x 10-41.21 x 10-2 |
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| 33. |
Falls. ing drought, groundwater levelMultiple Choice Questions (MCQs) -ick (7) the correct options:Weathering of rocks is a(a) very slowprocess.(b) slowSubstratum is just below the(c) fast(d) very fast O(a) topsoilO (b) subsoil 0 (c) humusWhen there is sufficient rain, groundwater level(d) bedrock(a) rises(b) falls 0 (c) remains same 0 (d) none of theseRoots of trees reach uptolevel of soil.(a) bedrock(b) substratum 0 (c) subsoil (d) topsoilSoil forms layers when mixed with water. Sand is found above(b) clay O (c) gravel 0 (d) humus(a) siltO117ova Learning Series Science - 7 |
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Answer» ನಾನು ನಿನಂನು ಪಿjsnjsjhsgw s j2b sisixks sskwjjwb a hjsjjsjhhqv 1ದ್ |
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| 34. |
Class 9th please answer step by step |
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Answer» a)ROAD accident at HIGH speed are very MUCH worse than accident at low speed |
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| 35. |
When when an electric lamp is connected to 220 V mains 1 ampere of current flows what will be the current when the lamp is connected to 110v mains |
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Answer» ampere of CURRENT flows. What will be the current when the lamp is CONNECTED to 110VI HOPE it's HELP you..... |
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| 36. |
A micrometer has 150 equal divisions on the circular scale, and on one full rotation of circular scale main scaleadvances by 0.02 cm on the main scale. The least countof the micrometer (in cm) is4x 10-56.21 x 10-31.33 × 10-41.21 x 10-2 |
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Answer» 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) isSolution: 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 Divisions1 main Scale = 0.02 cm150 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 The least count of the micrometer (in cm) is 1.33 x 10⁻⁴ cmLearn More:if a voltmeter shows 5 DIVISION deflection and its least count is 0.1 ... brainly.in/question/11111083The least count of a SCREW gauge is 0.005 cm. The diameter of a wire ... brainly.in/question/4624031 |
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| 37. |
09. One particle starts from a point A (7m, 9m) with a velocity of (3i+2j)m/s. At the same time another particle starts from point B(19m,3m) with a constant velocity of (-3i+uj). If the two particles collide, find the value of u. I really need this immediately I will mark as brainliest |
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Answer» 5m/sExplanation:its just that you NEED a graph,its not difficult,just USE the QUESTION to draw graph and find the time gap available for collision,and use that time to find u |
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| 38. |
Hi guys..need ur help.... PL anyone Answer |
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Answer» some of our energy is absorbed by the ROCK in the FORM of potential energy and the REST of our energy is absorbed by the rock.Explanation:pls mar me as the brainliest |
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| 39. |
A car is moving with a velocity of 2m/s. When the driver applied break, it come to rest by 4sec. Calculate the retardation of the car. |
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Answer» As we KNOW,retardation is opposite of acceleration.So,final velocity= 0m/sinitial velocity=2m/sTotal time= (final - Initial) time=( 4 - 0)s = 4sRetardation of the car= (final - initial) velocity/Total time = (0-2)m/s / 4s=-2/4 m/s^2= -1/2 m/s^2Hence the retardation of the car is -1/2m/s^2Explanation:HOPE u LIKE it!☺️☺️ |
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| 40. |
Pls help me find the answer |
| Answer» MARK me as the BRAINLIEST!!!HOPE it HELPS... | |
| 41. |
PGE NG The Total no.ofvalence electron un 69is the Avogadenumber (NA is theNumber) |
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| 42. |
a 0.1 kg ball moving at a speed of 5m/s in +x direction collides head on with 0.3kg ball that is at rest. Assuming that collision is elastic, determine the final velocities of the two balls |
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Answer» Since collision is elastic relative velocity of approach = relative velocity of SEPARATION n 1 =v 1 /3+u 2 u 2 =2V 1 /3 CONSERVING momentum m 1 v 1 =−m 1 3 v 1 +m 2 v 1 /3 0.1 3 4V 1 =m 2 2v 1 /3 m 2 =0.2 kgExplanation: |
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| 43. |
What is circular motion? |
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Answer» YOUR ANSWER IS IN ATTACHMENT HOPE IT HELPS YOU PLEASE FOLLOW ME |
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| 44. |
What do you understand by" sound energy cannot be produced"? |
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Answer» jam nahi HUA to NOISE pollution nahi hogaExplanation:PLEASE MARK me as 2brainlist answer please please please please please |
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| 45. |
Difference between mN,Nm,nm |
| Answer» CAPITAL LETTER and SMALL letter DIFFERENCE | |
| 46. |
What is universal gravitational constant? |
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Answer» The gravitational constant, DENOTED by the letter G, is an empirical PHYSICAL constant involved in the calculation of gravitational effects in Sir Isaac Newton's LAW of UNIVERSAL gravitation and in Albert Einstein's general theory of relativity. |
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| 49. |
Give ans fast. opls correect ans only |
| Answer» GIVE ANS FAST. oplscorreect ans only SEARCH in GOOGLE | |
| 50. |
1. A Car travels fromat a speed ofspeed of 20 kmph andouturns to A atspeed of30 kmphWhat is the1) Average splocity for the wholeijourney |
| Answer» AVERAGE SPEED the 90 EXPLANATION:average speed is 100 above | |