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. |
an elevator weighing 3.5×10^10N is raised to 1000m height in the absence of any friction . work done will be? |
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Answer» tion:An elevator weighing 3.5 X 10-6 N is RAISED to a height of 1000 m in the absence of friction, the work DONE is 3.5 x 109 J. |
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| 2. |
What are the harmful effects of fricton |
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Answer» gest disadvantage of friction is wear and tear that happens as a result of friction. ...Friction causes wear and tear in machinery PARTS and ALSO cause wastage of electricity and energy. ...Friction causes moving objects to stop or slow down.please MARK me brain mark LIST |
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| 3. |
An electron having charge E and mass m starts from one plate of two metallic plates separated by a distance D. If the potential difference between plates is V, then find the time taken by electron to reach the other plate. |
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Answer» is in ATTACHMENT HOPE it will HELP you DEAR!!! |
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| 4. |
Stress necessary to cause a non proportional or permanent extension equal to a defined percentage of gauge length is called as (ECET 2014) a) Rupture stress b) proof stress c) Working stress d) Allowable stress |
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Answer» orophyll MOLECULE CONSISTS of a central magnesium atom surrounded by a nitrogen-containing structure called a porphyrin ring; attached to the ring is a long carbon–hydrogen SIDE chain, known as a PHYTOL chain. |
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| 5. |
What is resolution of force with full description? |
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Answer» tion:The The separation of a single force or motion into two or more which have different direction, and TAKEN together, are an EQUIVALENT for the single one, the OPPOSITE of COMPOSITION of a force |
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| 6. |
Rae If the amount of electric change passing though conductor is 305 c, the current no minutos flowing is |
| Answer» 400 CEXPLANATION:the ANSWER is 400 C........ | |
| 7. |
Find the magnetic field at point P . Please refer the attachment . |
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Answer» Where is the ATTACHMENT ?? |
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| 8. |
determine the specific heat of aluminium shots.what apparatus or material is required to this experiment |
| Answer» HI can I be your FRIEND | |
| 9. |
An object moves 25 m in the first 10 s, 50 m in the next 10 s and 75 m in the last 10 s. What is its average speed? |
| Answer» SORRY I can't ABLE to UNDERSTAND the QUESTION | |
| 10. |
Condition for getting the bright fringes when the optical path difference of beams is equal to - ??? |
| Answer» COPIED TEXT is stored in the clipboard for 1 HOUR. | |
| 11. |
15 where necessary to points Q. 1. Write the answers to the following questions in one sentence. 1) What is sound? 2) What is momentum? Write the units of this amount in Si and CCS system Anributes 3) What are the elements in a nucleus? (4) Write the name of each of the acidic and acidic substances used in daily practice. 5) What is the main difference in the frequency of male and female voices? 6) While riding a motorcycle on winding roads, Manoj has both the movement and direction of the motorcycle What effect will change have on speed? 7) Complete the chemical reaction. CaCl, + Na2SO=8) What is a global viewer? Write two names of natural viewers. Casoy sulfata Precip |
| Answer» KNOW this QUESTION SORRY | |
| 12. |
A body of mass 400g at 6m/s collides with another body of mass 200 at 2m/s travelling in the same direction. if the two bodies stick together after collision and travel with a common velocity, calculate their common velocity of travel |
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| 14. |
Can we find a vector quantity that has a magnitude of zero but components are different from zero? |
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Answer» tion:Simply , no the vector cannot have magnitude of zero but if its COMPONENT are non zero. This case HOLDS good in case of rectangular COMPONENTS of vector. But in the case of non rectangular components the vector can have magnitude of zero even though its components are different from zero. |
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| 15. |
Define afforestation koi on hai |
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Answer» tation is the PLANTING or adding of TREES in an area where there was never a forest or PLANTATION. This is a METHOD to create a new forest. Reforestation is the replanting of trees in an area where there was once a forest which was destroyed or damaged. |
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| 16. |
A particle is moving with a constant speed along straight line path. A force is not required to (i) change its direction (ii) increase its speed (iii) decrease its momentum (iv) keep it moving with uniform velocity |
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Answer» the CORRECT OPTION is 4 (keep it moving with UNIFORM velocity)EXPLANATION:I hope it will HELP you |
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| 17. |
One mole of an ideal gas expands fromvolume VI to volume V2 at a constant temperature T. Derive an expression for the work done. |
| Answer» WORK DONE = DISTANCE COVERED /TIME | |
| 18. |
ух The maximum value of the refractive index of the material of a right angled prism to have emergent light is 4 5 (A) (B) (B) (C) 1.5 (A) ģ (D) V2. |
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Answer» the PROCESS by which green plants turn carbon dioxide and water into FOOD USING energy from sunlight.Explanation:SORRY |
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| 19. |
What is element ??$$, |
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Answer» an ELEMENT is an SUBSTANCE WHOSE ATOMS of all they have the same NUMBER of |
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| 20. |
5. What property is common between the images of the following letters? 'O, 1, 'M' and 'A Write down another letter and a digit which will follow the same property as found in the letters given above. |
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Answer» When you see these alphabets in MIRROR their mirror image would still look the same.Hence they have similar EnantiomersEnantiomers .THUS these alphabets are usually used while Eye Testing, when there's less AVAILABLITY of Space.Other examples are U, V, W, X, YHope it helps you! |
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| 21. |
_ is also considered to ne a major threat to biodiversity. |
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Answer» Habitat FragmentationHabitat loss from exploitation of resources, AGRICULTURAL conversion, and URBANIZATION is the largest factor contributing to the loss of biodiversity. The CONSEQUENT fragmentation of habitat results in small isolated patches of land that cannot MAINTAIN populations of species into the future.Hope this answer is HELP ful for you Please brainlest me the answer |
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| 22. |
What is the acceleration if the body starts from rest and travels a distance of ‘s’ m in2 seconds? |
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Answer» HalfInitial SPEED of the BODY u=0Displacement in 2 SECONDS S=l o+21 at 2 ⟹ S=0+ 21 a(2) 2 =2a⟹ a= 2Sif you GET right answer pleas add me as brain lest |
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| 23. |
A light beam moves in positive x-direction with speed of light c.another light beam moves in the Negative x direction with same Speed.To an observer sitting on the first beam ,the second beam appears to move with speed |
| Answer» THANKS I'll 6TH 5TH the 5th 6th the | |
| 24. |
PLEASE ANSWER THIS ASAP |
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Answer» zjsjkamamsmsmmsmsmammamaplease MAKE me BRAINLIEST |
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| 25. |
A capacitor of capacitance C is charged to potential V and another capacitor of capacitance 2C is charged to potential 2V.Then they are joined across each other with plates of same polarity together.The amount of heat generated after connecting the two capacitors together is |
| Answer» EXPLANATION:COMMON POTENTIAL v equal TOTAL chargeupon total CAPACITANCE i. E. V =(c1v1 +c2v2) / c1+c2 | |
| 26. |
a A boy walks from his classroom to the book & And along a steign. Coridor tourond borin a cover distance of 20m in 25 ieconds to reach the book shop. Aflere buying a book he travels the same shad distance in the same time to reach ho in their class room find (a) average speed and (b) a verage velocity of the boy. |
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Answer» (a) TOTAL distance covered in going to the bookshop and CORNING back to the classroom =20+20=40 mTotal TIME taken =25+25=50 secAverage speed = Total timeTotal distance = 5040 =0.8m/s(b) Average VELOCITY = Total timeTotal displacement = 500 =0 m/s |
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| 27. |
Solve this question pls and faster |
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Answer» Verified answer ✅pls prefer to the attachment there you MAY find your answer.. Explanation:Hope it helps you a lotplease mark as brainlistStay home stay SAFE Keep smiling Bbye TAKE care Thank you |
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| 28. |
2. In a game, a player is required to take first five steps forward followed by three steps in the backward direction and repeat the same until the destination, which is 12.5 m away, is reached. At the destination, there is a trap, which does not allow backward steps to be taken. [Each step is of 0.5 m length and take (1 s. Which of the following statements is correct in this context? (1) Average velocity is 2.5 m/s (2) Total time taken is 23 s (3) Total displacement required is 6 m (4) Total time taken is 85 s torte movie with an |
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Answer» tion:Precipitation is water released from clouds in the FORM of rain, freezing rain, sleet, SNOW, or hail. It is the primary connection in the water cycle that provides for the DELIVERY of atmospheric water to the Earth. Most precipitation FALLS as rain. |
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| 29. |
a force of magnitude 20n acts on particular at an angle of 60 with horizontal horizontal component of the force is in newtoms |
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| 30. |
if a car moves 40m dur to east and turns north and moves 30m then turns 45degrees east of north and moves 20root 2 m the net displacement of car is?i |
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Answer» jjdjrjrrirndndjrurhrbrkifkdkdnhrr |
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| 31. |
How will you measure 2kg of potatoes. |
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Answer» The original aim of the East India Company was to TRADE. The company was chartered by Queen Elizabeth I for trade with ASIA. The original object of the group of merchants involved was to BREAK the Dutch monopoly of the spice trade with the East Indies.Explanation:Figure 1.2 kilo is about TWO and a half pounds, or maybe 8-10 potatoes, starting from the largest in the bag. It's hard to tell because I don't KNOW the potatoes you're using. |
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| 32. |
Two long wires having linear charge densities λ1 and λ2 are placed perpendicular to each other at separation r. The electrostatic force of interaction between them is proportional to r^n. Then value of n is |
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Answer» wo long WIRES having linear charge DENSITIES λ1 and λ2 are PLACED PERPENDICULAR to each other at SEPARATION r.To find:Value for 'n' when electrostatic force of interaction between them is proportional to r^n.Calculation:Since both the wires are considered to be infinite, the force experienced by any one of the wires will be :'k' is Coulomb's Constant, 'l' is length of the wires.So, value of n is -1. |
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| 33. |
If v=3i+4j, then with what scalar C must it be multiplied so that |CV|=7.5 |
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Answer» V =3 i^ +4 j^ ∣∣∣∣ V ∣∣∣∣ = 3 2 +4 2 =5C× ∣∣∣∣ V ∣∣∣∣ =7.5C= 57.5 =1.5Explanation:please mark me as BRAINLIEST |
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| 34. |
आमचे आकार ओळखा व लिहा. |
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| 35. |
The magnitude of unit vector is |
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Answer» A unit VECTOR is a vector with MAGNITUDE of 1. In some SITUATIONS it is helpful to find a unit vector that has the same direction as a GIVEN vector |
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| 36. |
bu size of the image formed. 20. When an obiect is placed 20 con from a concave mirror, a real image magnified three times is formed Find : e an object 2 cm tall is placed 9 cm away from it Find the (a) the focal length of the mirror. (6) Where must the object be placed to give a virtual image three times the height of the object? 21 A dentist's mirror has a radius of |
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Answer» Explanabu size of the image formed. 20. When an obiect is placed 20 CON from a concave mirror, a real image magnified three TIMES is formed Find : e an object 2 cm tall is placed 9 cm away from it Find the (a) the focal length of the mirror. (6) Where MUST the object be placed to give a VIRTUAL image three times the height of the object? 21 A dentist's mirror has a radius oftion: PLEASE mark me brainlist |
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| 37. |
The resistance of a conductor does NOT depend on |
| Answer» HUMIDITY of the conductorExplanation: | |
| 38. |
the motion of a particle is represented by -15m/s. what does it represent speed or velocity? give reason |
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Answer» Speed is the TIME RATE at which an OBJECT is moving along a PATH, while velocity is the rate and direction of an object's movement.Explanation:HOPE It Helps!! |
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| 39. |
How can you relate heat and energy of molecules of matter? |
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Answer» All matter CONTAINS heat energy. Heat energy is the result of the movement of TINY PARTICLES called atoms, molecules or ions in solids, liquids and gases. Heat energy can be transferred from one object to ANOTHER. The transfer or flow due to the difference in TEMPERATURE between the two objects is called heat |
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| 40. |
Define motion and force kis ko thanks chahiye toh bolo ☺️ |
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Answer» Hey mate,Your ANSWER is as follows:Force and motion are fundamental to all matter in the universe. A force is ANYTHING that can push or pull on an object. Forces influence objects that are at REST or that are already in motion. Isaac Newton's three LAWS of motion involve inertia, mass, velocity, and momentum.Explanation:Hope You Find It Useful..Thanks & Regards..Do MARK my answer as Brainliest.. |
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| 41. |
A car travels north at 30 m/s for 10.0 min. it then travels south at 40 m/s for 20 min. what are the total distance the car travels and its displacement? |
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Answer» e = 66 km or 66000 m.Displacement = 51.264 km or 51264 m.Explanation:10 minutes = 10 × 60 = 600 seconds and20 minutes = 20 × 60 = 1200 seconds.Distance TRAVELLED by car in North direction= speed × time = 30 × 600 = 18000 m = 18 km.Distance travelled in South direction= 40 × 1200 = 48000 m = 48 km.Total distance travelled by car = 18 + 48= 66 km or 66000 m.For the CALCULATION of displacement, 18 km and 48 km will be LEGS of a right triangle.Using Pythagoras-Theorem,Displacement = √(18^2 + 48^2 )= √[6^2(9 + 64)]= 6√(73)= 6 × 8.5440= 51.264 km.Hence, displacement of car = 51.264 km (approx) |
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| 42. |
What is kinematics ??? |
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Answer» Explanation:the BRANCH of mechanics concerned with the motion of objects without reference to the FORCES which CAUSE the motion |
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| 43. |
A marble ball of mass 50 g , falls from a height of 5 m on a horizontal plane and rebounces to rise up to a height of 3.2 m. if the collision lasts for (1)/(10)s, find the impulsive force imparted by the plane and the impulse of the ball. |
| Answer» HAT,Ball of mass = 50 gHeight = 1 mRebound to height = 0.5 mTime = 0.1 sNow,Initial VELOCITY of the ball =um/sLet the FINAL velocity =vm/sUsing equation of motionv 2 =u 2 +2ghv 2 =0+2×9.8×0.1v= 1.96 v=1.4m/sIn the second time,Final velocity=0m/sNow, Using equation of motionv 2 =u 2 −2gh0=u 2 −2×9.8×0.5u 2 =9.8u=3.1m/sNow, Impulse= change in linear momentum=mv−m(−u)=m(v+u)=0.05×(1.4+3.1)=0.225NsNow, the Force=Impulse/TimeF= timeimpulse F= 0.10.225 F=2.25NHence, the impulse is 0.225 Ns and force is 2.25 N | |
| 44. |
What is atom.bae where are you ?(╥﹏╥) |
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Answer» Cells are the basic building blocks of all living things. ... Cells ALSO contain the BODY's hereditary material and can make COPIES of themselves. Cells have MANY parts, each with a different function. Some of these parts, called organelles, are specialized structures that perform certain TASKS within the cell. |
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| 45. |
Which Components of air on copper vesselsplease answer. |
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Answer» hibggcgjvyffjoh GOOD gcuchxtfyxrxvvhxgv |
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| 46. |
Give 2 examples in which u push or pull to change the state of motion of an object |
| Answer» TWO examples of push force are as follows:A heavy BOX at rest is pushed to move it from ONE room to another. This changes the STATE of motion of the box.A player PUSHES a football using his foot. This changes the state of motion of the ball.Two examples of pull force are as follows:Rope is pulled to draw water from a well. This changes the state of motion of the water bucket.A drawer is pulled to open it. This changes the state of motion of the drawer.Explanation:I hope that this will help you | |
| 47. |
What is the equivalent resistance between points A and B? |
| Answer» HI how are you HOPE you are FINE in this pendemic DAYS | |
| 48. |
Define balanced force and unbalanced force write an example to each. |
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Answer» Balance forces are TWO forces acting in OPPOSITE DIRECTIONS on an object, and equal in SIZE. Example-:a person standing on the floor. ... When two forces acting on an object are not equal in size, we say that they are UNBALANCED forces. Example-:A tug of war with different number of people on each sides. |
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| 49. |
The position co-ordinates of a projectile thrown from ground are given by y = (12t - 5t2)m and x = 5t(m). The initial speed of throw is (Here t is in second) (1) 10 m/s (2) 13 m/s (3) 11 m/s (4) 17 m/s ? |
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| 50. |
Draw a ray diagram of convex lens when object is placed at 2f . (please give answer along with diagram) #100points please don't give useless and wrong answers otherwise I will report your profile. |
| Answer» TION:hithe ANSWER is in the ATTACHMENT | |