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. |
What is valancy???? |
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Answer» The OUTERMOST cell of an ATOM is known as valence shell or valence orbit. The ELECTRONS present in that orbit is known as valence electrons. The number of electrons that an atom needs to donate, accept or share so as to FORM a complete outer octet is called VALENCY. |
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| 3. |
How many forces are acting on a plank supported on a steps of staircase |
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Answer» Normal reaction FORCE and GRAVITATIONAL force are acting on the PLANK supported on a STEPS of staircase.hope it helpsThank youmark me as Brainliest please |
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| 4. |
A stone tied to the end of string 50 cm long is whirled in a horizontal circle with a constant linear speed if the stone makes 12 revolution seconds what is the centripetal acceleration of the stone |
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| 5. |
The ratio of energy required to accelerate a car from rest to 20m/s to the energy needed to accelerate from 20m/'s to 40m/'s is 1) 1:12)1:33)1:24)1:4 |
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Answer» for answer see the IMAGE ....pls thank my answer and MARK as brainliestanswer is 1:1Explanation:first STEP is done with ACCELERATION formula with taking TIME as "t" |
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| 6. |
Three cells each of emf 1.5 volt and internal resistance 1 ohm are connected in parallel what would be the emf combination |
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Answer» hree cells, each of e.m.f 1.5 V and internal resistance 1 OHM are connected in parallel. What WOULD be the e.m.f of the ...EXPLANATION:hree cells, each of e.m.f 1.5 V and internal resistance 1 ohm are connected in parallel. What would be the e.m.f of the ... |
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| 7. |
How can u measures -(iv)diameter of football with a ruler???? please help guys please plzzzzzzzzzzzzzzzz |
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Answer» o CARDBOARD in ur hand place the cardboard parallel and KEEP the BALL between the cardboardnow measure the distance between the parallel cardboard u will get the diameterthank uhope it HELPS u |
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| 9. |
The process of adding impurities to an intrinsic semiconductor is called |
| Answer» HELLO matehere is your ANSWEREXPLANATION:The process of adding IMPURITIES to an intrinsic semiconductor is called dopinghope it will HELP you........PLZ mark my answer as brainliast....... | |
| 10. |
The positive hydrostatic pressure developed inside the cell or cell wall |
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Answer» it developed INSIDE cell EXPLANATION:HOPE the answer will help you |
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| 11. |
The one which offers highest resistance to the passage of electric current |
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Answer» Tungsten is the METAL which OFFERS HIGHER resistance to pass of electricity than copper because it is used in BULB. |
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| 12. |
The self inductance of two coils is 9 and 4 what is thr maximum mutual inductance |
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Answer» 36 is the CORRECT ANSWER EXPLANATION:when K= 1 |
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| 13. |
What is the minimum force acting between two charges placed at 1 m apart from each other a) Ke^2 b) Ke c) Ke/4 d) Ke^2/2 |
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Answer» F=2.3×Explanation:F=F=kqqif q=1.6F=2.3 |
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| 15. |
What is solanoid? what are the example |
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Answer» oid is a long cylindrical coil BOUNDED by copper wires of CIRCULAR loops.Magnetic Field in a SOLENOID is uniform.Example: hotel door locks, PRESSURE valve in air conditioning SYSTEM, e.t.c |
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| 16. |
On going from north pole to equator, the value of angle of dip |
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Answer» On going from North pole to EQUATOR,the VALUE of angle of dip varies from 90° to 0°. EXPLANATION: Magnetic dip is DEFINED as the angle between the total strength of the EARTH's magnet and horizontal line to the magnetic meridian. The magnetic strength of the earth varies with its radius.mark me Brainest please please please please please |
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| 17. |
The value of electric field inside a conducting sphere having radius R and charge Q will a) KQ/R^2 b) KQ/R c) Zero d) KQ^2/R^2 |
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Answer» Zero EXPLANATION:Because the CHARGE on a CONDUCTING sphere will be on its surface only , so if there is no charge inside the conducting sphere , there will be no ELECTRIC FIELD |
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| 18. |
An EV with the following details. Total mass = 1200 kg, front area = 2 m2, aerodynamic drag coefficient = 0.25 and tire rolling friction coefficient = 0.02, air density = 1.25 kg/m3, acceleration due to gravity = 10 m/s2. Equivalent mass for rotational mass can be taken as 6% of total mass. The wheel is connected to a three phase induction motor with a gear. Gear efficiency is 0.9. Induction motor is operating in constant torque region. The vehicle starts from rest and linearly reaches velocity of 80 km/hr in 10 seconds. Rolling frictional force is240 N 254.4 N 278.4 N 235.2 N |
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| 19. |
Can u please tell the physical quantities with their unit as well as symbols. please answer my question asap. thankyou... |
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Answer» which physical QUANTITIES you WANT ?I KNOW the physical quantities of metals and nonmetals, ACIDS and bases |
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| 20. |
What is a staple food of telangana |
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Answer» roti'sExplanation:Telangana in its cuisine, there is special place for roti's made from MILLETS, such as jonna ROTTE (SORGHUM), sajja rotte (penisetum), or Sarva Pindi" and Uppudi Pindi (broken rice). In Telangana a gravy or CURRY is called Koora and Pulusu (Sour) in BASED on Tamarind. |
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| 21. |
Why are raindrops spherical in shape?+mechanics? |
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Answer» Hey!As the RAINDROP falls, it loses that ROUNDED SHAPE. The raindrop becomes more like the top half of a hamburger BUN. FLATTENED on the bottom and with a curved dome top, raindrops are anything but the classic tear shape. The reason is due to their speed falling through the atmosphere.hope it will be helpful ✌️ |
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| 22. |
Why solutions deviate from law?Raoult's |
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Answer» If the solute and solvent are not as tightly BOUND to each other as they are to themselves, then the solution will SHOW a positive deviation from RAOULT's law because the solvent molecules will FIND it easier to ESCAPE from solution into the gas phase..... |
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| 23. |
A particle is freely falling along the line Y is equal to d find torque on this particle due to gravity about origin when it crosses x axis and when it is at y=d |
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| 24. |
Montre --======Find the term for aconductor wire of 1 meter inlength and a transverse areaof 4 in Long and 5ohm |
| Answer» SORRY i DONT KNOW...... | |
| 25. |
When a body moves in a circular path how much work is done for three half rotation? |
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Answer» Hey!The WORK DONE by a force in MOVING a body is W= F . s where s is the displacement vector.In a circular path, the force is centripetal, THUS always acting towards the center ALONG the radial direction.However the displacement is always along tangent to the circle at the instantaneous position of object.Thus W= F . s =0hope it will be helpful ✌️ |
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| 26. |
Magnification of a mirror is -3 what do you mean by this ? Write the nature of the spherical mirror |
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Answer» magnification is -3...negative sign SHOWS that the image is inverted and the number 3 shows that the image size is three TIMES of the object size.since the image is enlarged and inverted => image is real => GIVEN SPHERICAL MIRROR is a concave mirror.Hope this helps you.Pls mark me as the brainliest.And follow me |
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| 27. |
Does every physical quantity necessarily has a dimension? |
| Answer» NOTHING LIKE this that some doesnts have DIMENSIONAL FORMULA | |
| 28. |
A ball moves on a smooth floor in a straight line with a uniform velocity 10 m/s for 6 s. At t=6 s, the ball hits a wall and comes back along the same line to the starting point with same speed. Draw a velocity -time graph and use it to find the total distance traveled by the ball and its displacement. |
| Answer» DISTANCE =velocity/time10/65/31.66total distance is 2(1.66)=3.32 | |
| 29. |
A kid on the playground swing makes 6 complete to-and-fro swings each 30 seconds. What is the period of the swinging? |
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Answer» > 6 SWINGINGS = 30 secondsLet durations of ONE swinging be x. Then,=>x = 30 seconds/6 swinging=>x = 5 secondsThus it takes 5 seconds for one swinging. |
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| 30. |
04. The objective of an astronomical telescope has a focal length 1.2 m and the eyepieces has a focal length of 5 cm. If it is used to see a distant object with the final image formed at leastdistance of distinct vision (25 cm), the length of the telescope (the distance between theobjective and eyepiece) is nearly1) 115.8 cm2) 125.0 cm3) 124.2-4) 115.0 cm |
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Answer» 3.124 I HOPE you MARK as BRANILIEST |
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| 31. |
A particke of mass m is moving on a circular path of radius r with uniform speed v rate of change of linear momentum |
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Answer» 0Explanation: |
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| 32. |
What is the value of latent heat of fusion of ice of 2 grams |
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Answer» The latent heat of fusion of ice is 80 calories per gram. So the latent heat of fusion of ice of 2 GRAMS will be 160 calories. Hope it helps :) |
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| 33. |
A car of mass 10 kg moves on a circular track of radius 20m .if cofficient of friction is 0.3,then the maximum velocity with which the car can move is |
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Answer» nd : Maximum velocity with which car can MOVE ?• GIVEN : mass of car = 10 kgcofficeint of friction ,μ = 0.3 RADIUS of circular track = 20 m★ The maximum velocity v with which the car can move is when the friction force will provide the necessary centripetal force. Frictional force = μmg Centripetal force For maximum velocity |
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| 35. |
Coefficient of linear expansion is 5*10-5F .Then coefficient of cubical expansion is |
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Answer» coefficient of LINEAR EXPANSION=alphagiven value of linear coefficient=5*10-5F=50-5Fcoefficient of CUBICAL expansion=gamaExplanation:gama=3alpha =3*50-5F =150-5Falpha=gama/350-5F=150-5F/350*3=150-5F+5F [=5F-5F CUT]150=150COEFFICIENT OF CUBICAL EXPANSION IS 150-5F OR 150PLS MARK AS BRAINLIEST ANSWER |
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| 36. |
When is acceleration minimum in projectile motion? |
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Answer» Ywwit I am GOING out to the OFFICE tomorrow and will I have the money Explanation:I HapPy DAY 7 I and my family are going well for you GUYS as you well have been doing well a lot few things times over the years I have been have a |
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| 37. |
When electromagnetic radiation of wavelength 300? |
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Answer» FIS I have a lot it t to do in my own TIME but it has Explanation:HAPPY B day for and with the most amazing |
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| 38. |
When a series combination of inductance and resistance? |
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Answer» I have to go to to the NEXT level and then see if I can get the job and I can go back to the OFFICE tomorrow and get the rest of the world the BEST 986 966 I will have a GOOD FIT and I can give you a call good for a few minutes |
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| 39. |
State and explain working ,pricipal of galvanometer |
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Answer» When a CURRENT-carrying coil is suspended in a uniform magnetic field it is acted UPON by a TORQUE. Under the action of this torque, the coil rotates and the deflection in the coil in a MOVING coil galvanometer is directly proportional to the current flowing through the coil. |
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| 40. |
What is the pressure energy of a liquid of mass m and density rho? |
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Answer» Pressure ENERGY is GIVEN by PV.Therefore, pressure energy per unit mass= PV÷ m = P ÷ RHO |
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| 41. |
A tank contains water and mercury as shown in . An iron cube of edge 6cm is in equilibrium as shown. What is the fraction of cube inside the mercury ? Given density of iron =7.7xx10^(3) "kgm"^(-3) and density of mercury =13.6xx10^(3) "kgm"^(-3). |
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Answer» the DIFFERENT TYPES of FRICTIONAL FORCES with EXAMPLES? |
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| 42. |
The S.I. unit of electric charge is _____ . |
| Answer» COULOMB is the CORRECT ANSWER EXPLANATION:pls mark as BRAINLIEST | |
| 43. |
The area of a big _________ is measured in square metres |
| Answer» R gardenHope it helpsMark it as BRAINLIEST if you are SATISFIED with the ANSWER | |
| 44. |
A body starts moving from rest and in 10 seconds later it acquires a speed ofd 20m/s. It maintains a constant speed for 5 seconds.Finally the body undergoes uniform retardation to rest in 10 seconds a]DETERMINE THE TOTAL DISTANCE COVERED b]calculate the average speed of the body c]a stone is released from a height h, if the acceleration due to gravity is g, show that the velocity is v==2gh just before hitting the ground |
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Answer» a) total DISTANCE covered is 250m b) average speed is 7.1m/s c) for a FREELY FALLING body dropped from a height (h), initial velocity is 0. Therefore, from v^2 = u^2 + 2as u = 0, a = G, s = h V^2 = 2gh v = √2gh |
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| 45. |
A force of 10N acts on a body of mass 1kg for 5sec to a distance of 10m. The rate of change of momentum is: |
| Answer» TION:use the FORMULA of momentum pp=MVp= change of momentumm= massv=velocityplzzzzzzzzzzzzz add to brainlest | |
| 46. |
15. A uniform semi-circular wire of radius 1 m and unknown mass is lying in xy plane as shown. Thecoordinate of its centre of mass are (in m)options are :-1) ( 0 , 1/π )2) ( 0 , 2/π )3) ( 1/π , 0 )4) ( 2/π , 0 )plz solve it quikly , its very urgent , plz dont give wrong answers if u dont know plz plz |
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Answer» For a semicircular ring having some non zero MASS, the coordinate of CENTRE of mass when the radius is Ris X coordinate = Abcissa of the centre of the semicircular ring y-coordinate = 2R/π above the centre of the circleThis can be easily proved by using the formulay (com) = Integral of y dm/ Integral of dmwhere, dm is an infinitesinally small mass element.So,Because here the radius of the semicircular ring is 1 m.Therefore, the COORDINATES of the centre of mass of given WIRE will be(0,2(1)/π) = (0,2/π) |
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| 47. |
find the potential difference between the two ends of a conductor. if it resistance of 5 ohm. take the current flowing the conductor os 5 amperes? |
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| 48. |
Draw the circuit depicting the equation V=Ea+I*Ra |
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Answer» in this type of circuit the battery is connected to opposite polarity battery which will induce current in opposite directionExplanation:When current flows into the battery in opposite to the potential of the batteryThen DUE to opposite direction of current when we write the equation of voltage difference ACROSS the terminal of the cell it will give the equation ASSO we haveso the in this type of circuit the battery is connected to opposite polarity battery which will induce current in opposite direction#LearnTopic : CHARGING of Cellbrainly.in/question/11831903 |
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| 49. |
Tell me about Newtonian mechanics |
| Answer» AL mechanics describes the motion of MACROSCOPIC objects, from projectiles to parts of machinery, and ASTRONOMICAL objects, such as spacecraft, planets, stars and galaxies. | |
| 50. |
2. A soap bubble of radius 10 cm is blown. Surface tension of soap solution is 30 dyne/cm. Calculatethe work done in blowing the bubble. |
| Answer» W= T X change in area , t-> SURFACE tension. since you had not GIVEN change in radius or for how much increase in area should work has to be calculated, it cannot be ANSWERED with precisionExplanation: | |