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. |
Explain the following : (a) Ohm's law(b) Resistance (c) Resistivity |
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Answer» RESITANCEExplanation:means the POTION that excretes you in mine CRAFT SORRY but in my KNOWLEDGE i think this is the awnser |
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| 2. |
A bus starts with an initial velocity of 10 m/s and acceleration 0.1 m/s² .Calculate the velocity acquired in 2 minutes. |
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Answer» :➥ The final velocity of a bus = 22 m/sGiven :➤ Intial velocity of a bus (u) = 10 m/s➤ ACCELERATION of a bus (a) = 0.1 m/s²➤ Time taken by a bus (t) = 2 min To Find :➤ Final velocity of a bus (v) = ?Solution :To find the final velocity of a bus, first we need to CONVERT the time taken MINUTE into second, then after we find final velocity of a bus from first equation of motion.◈ Time taken (t) = 2 min = 2 × 60 = 120 secFinal velocity of a busFrom first equation of motion→ v = u + at→ v = 10 + 0.1 × 120→ v = 10 + 12→ v = 22 m/sHence, the final velocity of a bus is 22 m/s.Some related equations :⪼ v = u + at⪼ s = ut + ½ at²⪼ v² = u² + 2asWhere,v is the final velocity.u is the intial velocity.a is the acceleration.t is the time taken.s is the distance.━━━━━━━━━━━━━━━━━━━━━ |
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| 3. |
The angle between the incident ray and the reflected ray is 45. What is the value of the angle of incidence |
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Answer» eeExplanation: According to the first LAW of reflection of LIGHT, if the angle of incidence is 45 degree then the angle between REFLECTED ray and the incident ray will be 90 degree. |
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| 4. |
Ifx x=dg theo Facktional errorequal toДх.is e |
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Answer» ndhrvvr rrvhrvrhveyrnbasvsbs svevevebevbe EBE ennrb |
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| 5. |
The angle between the direction of i cap and (i+j) cap? |
| Answer» TION:bsjsjnv | |
| 6. |
The it isposition ofan object moning along x-axisis given byx = a+bt^2 where a=8.5m,b=2.5 m/s² and it is measured in secondswhat is its velocity atvelocity at t = 0s and t = 2.0What is theaverage velocity between t = 2.0s andt=4.0s? |
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Answer» bhai ye NEET ka question hai jayada SOCHI mat bas differentiate JR do phir value Rakh do SAYAD 2016 Ka sawal hai |
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| 7. |
thnx di di maine aapko thnx de diya h baki bhi de dungi di appne maths mai ek Question ka Answer diya tha isme ek answer dene ke liye rhe gya tha tb mai answer mai ye likha Pehle didi ko Brainlist answer kro tb dungi answer |
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Answer» okkkkkkkkkkkkkkkkkkkkkkkkkk |
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| 8. |
If A+B=C and vectorA +Vector B gives vector C then the angle b/w vector A and Vector B is |
| Answer» ANYWAY from this, we KNOW that the A×B vector and B×A vector are equal in magnitude but in OPPOSITE direction, i.e they are antiparallel, so the ANGLE between them is 180° or π RADS. | |
| 9. |
Mobility depends on which factors in semiconductor |
| Answer» IMPURITY concentration, DEFECT concentration, TEMPERATURE, ELECTRON and whole CONCENTRATIONS. | |
| 10. |
Class 10 activity 13.6 science chapter 13 physics |
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Answer» tion:try the performance and his WORK on a good day to get the performance and EXPERIENCE you WANT and has a great time in a career and his team will get to SEE |
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| 12. |
5. Water flows steadily through a hor pipe of a variable cross- section.pressure of water is P at a point whevelocity of flow is V, what is the prat another point, where the velocity ois 2V. p Being the density of watera P - 3/2pv?b) P + 3/2c) P - 2pvd) P + 2pv2 |
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Answer» (B) P + 3/2 EXPLANATION:MARK me in BRAINLIEST |
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| 13. |
Who is the role model of . any one tell me |
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Answer» __A ROLE model to me is SOMEBODY who I look up to, who has done something out of the ordinary and who has achieved great things.” Scenario 1: If you're INTERVIEWING for an entry-LEVEL position, a great role model to mention is somebody who has been in your place and worked their way up to gain a senior level role.♥️Mark my answer as brainliest |
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| 14. |
The size of atom is smaller than that of nucleus [ True/ False] |
| Answer» TRUE. ............................. | |
| 15. |
When two people. together simultaneously push the table in same direction the force applied are get |
| Answer» PLZ WRITE what is FULL Q. | |
| 16. |
Identify the wrong statement. 1 pointO(a) Eddy currents are produced in asteady magnetic field,O(b) Eddy currents can be minimizedby using laminated core.O(c) Induction furnace uses eddycurrent to produce heat.(d) Eddy current can be used toO produce braking force in movingtrains |
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Answer» The WRONG statement is :-a) Eddy CURRENTS are PRODUCED in a MAGNETIC field. |
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| 17. |
If a particle has negative velocity and negative accelerartion, it speed |
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Answer» rticle has NEGATIVE velocity and negative ACCELERATION then particle moves just opposite direction of its motion. Means, speed of particle increases with INCREASING TIME in opposite direction.I HOPE THIS WILL HELP U PLZZZ..... SAY THX TO ME AND PLZZZZ FOLLOW ME GUYS......PLZZZZZ |
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| 18. |
Ram said to ravi Larger the mass smaller theacclaration the is the correct? Give th the reason. |
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Answer» yesExplanation:because mass of OBJECT is more and heavy so it will MOVE with slower speed hope u understand |
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| 19. |
Physics chapter-motion lab activity-1 9th class |
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Answer» uhwhwg I love it if the end up being truly easy KER diya aur aapke sath h to you b 6 I love itExplanation:thank to every to the most beautiful WOMEN in the endf to the most beautiful women who is your BESTI is a HH sant Kabir ke phone un logo this this WEBSITE you are not fine and your mail address please wait my |
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| 20. |
Explain the moment of inertia in rotatory motion |
| Answer» MENT of inertia, otherwise known as the mass moment of inertia, angular mass or ROTATIONAL inertia, of a rigid body is a QUANTITY that DETERMINES the torque needed for a desired angular ACCELERATION about a rotational axis; similar to how mass determines the force needed for a desired acceleration. | |
| 21. |
An object starts from rest and moves with uniform acceleration. The displacement ofthe object is proportional to of time.a thriceb. quadc. squared. twice |
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Answer» chal hatttttttttttttttt you will be a little bit of TIME and PLACE it on my phone DIED on it for you to be in the village-widespread you will be in a |
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| 22. |
The object at rest moves in the direction of the ___ acting on it |
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Answer» forceExplanation:the OBJECT at rest moves in the direction of the _force__ ACTING on it MARK me as BRAINLIEST |
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| 23. |
Which is used to separate miscible and immiscible liquids? |
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Answer» A mixture of miscible liquids is separated by the process of fractional DISTILLATION. 2. Immiscible liquids : Those liquids which do not mix with each other and form separate layers are CALLED immiscible liquids. Ex. Oil and WATER are immiscible liquids because they do not mix with each other., and form separate layers on mixing. Water beinghope it helps you...mark it as BRAINLIEST...EXPLANATION: |
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| 24. |
Draw the ray diagram of convex lens..if the object is placed on 2f |
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Answer» tion:Position of image: At 2F BEHIND the lens.Nature of image: REAL, inverted and same as OBJECT size.hope it HELPS |
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| 25. |
Larger the mass smaller the accleration |
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Answer» es that the time RATE of change of the velocity (directed SPEED), or acceleration, , is directly proportional to the FORCE F and inversely proportional to the mass m of the body; i.e., a = F / m or F = ma; the LARGER the force, the larger the acceleration (rate of change of velocity); the larger the mass, the .PLZ MARK ME AS BRAINLIEST!!!!!!!!!! |
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| 26. |
A the depth of an opening from surface of water in tank is 10m. The speed of effluxwhen the tank is half filled isa) 2m/sb) 8m/s c) 10m/sc) 10m/s d) 5m/s |
| Answer» CEXPLANATION:V = ✓2ghh=10/2 = 5V = ✓2 X 10 x 5v= 10 | |
| 27. |
The strength of a force is usually represented by its |
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Answer» The strength of a force is expressed by its magnitude. The magnitude of a force is expressed in the SI unit of force called Newton. 1 Newton is the force which can make an object of 1 KILOGRAM mass to MOVE at a speed of 1 METER per second.Hope it helpedPlease mark me as BRAINLIEST |
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| 28. |
Give the expression to calculate the distance covered (s) by a body in time 't'when : (i) Body is moving with uniform speed 'v'.(ii) Body is accelerated by 'a' and starts with velocity 'u'.please tell fastno wrong answer |
| Answer» OPTION 2 is ANSWERER maybeeee | |
| 29. |
What is the Smallest size of a looking glass a person with height 24 cm by 16 cm should purchase, Which will enable to see his whole face at a time. The distance between his eyes is 8 cm |
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| 30. |
an object 5cm highis kept 25cm away from a converging lens of focal length 10cm. find the position ,nature ,and size of image formed |
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Answer» tion:The image is formed at a 'distance of 16.66 CM' AWAY from the LENS as a diminished image of HEIGHT 3.332 cm. The image formed is a REAL image. |
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| 31. |
Y=(tan60)3-10/2(100cos^260)*9 |
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Answer» your QUESTION dearpls MARK me as BRAINLIEST dearpls THANKS to me |
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| 32. |
If the mass of water in vessel "D" is 500 gm and area of its base is 0.7m2 , find the pressure exerted at the base of the vessel, in SI unit? |
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Answer» 2 N/m²Explanation:MASS of water, m = 500 G = 500÷1000 = 0.5 kgWeight of water, F = mg = 0.5×9.8 NArea of base of VESSEL = 0.7m²Pressure = F/A = (0.5×9.8)÷0.7 = 0.5×4 = 2 N/m² |
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| 33. |
effect of medium:- list two characteristics of sound that are affected by the medium through which the sound passes and two characteristics that are not affected. |
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Answer» d 1) TEMPERATURE 2) elasticityNot AFFECTED 1) |
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| 34. |
What is lewis stracture in chemistry |
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Answer» Lewis structures, also called electron-dot structures or electron-dot diagrams, are diagrams that show the bonding between atoms of a MOLECULE, and the lone PAIRS of electrons that may exist in the molecule. A Lewis STRUCTURE can be drawn for any covalently-bonded molecule, as WELL as COORDINATION compounds. |
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| 35. |
A body slides down on an inclined plane of inclination 45º from rest. The time takento cover a certain distance in the absence of fric-tion is half of the time taken to cover the same dis-tance in the presence of friction. Find the coeffi-cient of friction. |
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Answer» ) When there is no friction, From newton's SECOND law, F=ma ⇒mgsinθ=ma 1 ⇒a 1 =gsinθNow, as body starts from rest so INITIAL velocity (u)=0 m/s.Let, body travels 'X' distance in t 1 TIME,So from equation of MOTION, x=ut+ 21 at 2 ⇒x= 21 a 1 t 1 2 ⇒t 1 = a 1 2x = gsinθ2x Case (2) When there is friction, From newton's second law, F=ma ⇒mgsinθ−μmgcosθ=ma 2 ⇒a 2 =gsinθ−μgcosθNow, as body starts from rest so initial velocity (u)=0 m/s.Let, body travels 'x' distance in t 2 time,So from equation of motion, x=ut+ 21 at 2 ⇒x= 21 a 2t 22⇒t 2 = a 1 2x= gsinθ−μgcosθ2x It is given that t 2=2t1 So, gsinθ−μgcosθ2x =2gsinθ2x Now, substituting θ=45 and solving above equation we get, 1−μ1=2μ= 43=0.75pls mark me as brainliest answer pls... |
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| 36. |
گسیframmest & aquiresbylalulatethethein 5 secondsmovedBody. |
| Answer» KYA....... ?kya........???SAMJA NAHI | |
| 37. |
Determine the electric Current through, a cylendrical wire length l And radius R if current density through wire iswearing withdistance fromCentre r |
| Answer» HOPE the above ATTACHMENT HELP you | |
| 38. |
Two equal vectors have their resultant equal to either at what angle they are inclined |
| Answer» SOLUTION :Solution :HereA=F,B=F,R=F,θ=?Solution :HereA=F,B=F,R=F,θ=?Now R=A2+B2+2ABcosθ−−−−−−−−−−−−−−−−−√Solution :HereA=F,B=F,R=F,θ=?Now R=A2+B2+2ABcosθ−−−−−−−−−−−−−−−−−√F=F2+F2+2F.F.cosθ−−−−−−−−−−−−−−−−−−√Solution :HereA=F,B=F,R=F,θ=?Now R=A2+B2+2ABcosθ−−−−−−−−−−−−−−−−−√F=F2+F2+2F.F.cosθ−−−−−−−−−−−−−−−−−−√F2(1+cosθ)−−−−−−−−−√Solution :HereA=F,B=F,R=F,θ=?Now R=A2+B2+2ABcosθ−−−−−−−−−−−−−−−−−√F=F2+F2+2F.F.cosθ−−−−−−−−−−−−−−−−−−√F2(1+cosθ)−−−−−−−−−√⇒1=2(1+cosθ)Solution :HereA=F,B=F,R=F,θ=?Now R=A2+B2+2ABcosθ−−−−−−−−−−−−−−−−−√F=F2+F2+2F.F.cosθ−−−−−−−−−−−−−−−−−−√F2(1+cosθ)−−−−−−−−−√⇒1=2(1+cosθ)cosθ=−12=cos120∘⇒θ=120∘ | |
| 39. |
What is lewis stracture |
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Answer» Lewis structures, also known as Lewis DOT diagrams, Lewis dot formulas, Lewis dot structures, electron dot structures, or Lewis electron dot structures, are diagrams that SHOW the bonding between ATOMS of a molecule and the lone pairs of electrons that may exist in the molecule.Explanation:mark me as brilliant PLZ if you LIKED the answer |
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| 40. |
There is an inclined plane with horizontal length of 12m, height 5m. If force of 20N is applied to push a box up the slope, then what is the work done by that force? |
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Answer» in which is this QUESTION |
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| 41. |
The elbow joint is ? |
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Answer» The elbow is a hinged joint made up of three bones, the humerus, ulna, and radius. The ends of the bones are covered with cartilage. Cartilage has a RUBBERY consistency that allows the joints to slide easily against ONE another and ABSORB shock. The bones are held together with ligaments that FORM the joint capsule.Explanation:i THINK it is helpful |
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| 42. |
On which principle, does an electric cell work? |
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Answer» An electrical CELL is an "electrical POWER supply" - internally it converts stored chemical energy into electrical potential energy, allowing a CURRENT to flow from the positive terminal round to the negative one via an external CIRCUIT (this is called conventional current, which is chosen to GO from + to -) |
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| 44. |
A ship was moving at a speed of 500 ms-1 and it attained speed of 600 ms-1 in 5seconds. What is the acceleration of theship?a. 20 ms-2b. 30 ms-2c. 10 ms-2d. 50 ms-2 |
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| 45. |
Physics chapter-motion lab activity-1 |
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Answer» Force and Motion Lab The following activity is designed to SHOW the relation between force and motion by determining the VALUE of a mass which is moving at CONSTANT speed in a circular path. Materials Required A thin plastic tube 1 meter of nearly massless string A rubber stopper of unknown mass An assortment of metal washers totaling 1200 g A mass scale A timer Red tape Procedure 1. Slide string through thin plastic tube and securely attach rubber mass to string at one end. 2. Put piece of red tape on string 0.5 m from rubber mass. 3. Slide plastic tube to the bottom of the red tape and put another piece of red tape on the string at the bottom of the plastic tube. 4. Attach 0.5 g of washers to other end of string. 5. Hold on to plastic tube and swing rubber mass around your head so that the pieces of red tape stay at the top and bottom of the red tube. procedure 6. When constant velocity has been reached (both pieces of red tape aren't moving), start the stopwatch and count 10 revolutions. Stop the stopwatch at 10 revolutions and slowly bring the rubber mass to a stop. 7. Weigh the washers. 8. Repeat steps 5-8 until you have 5 different masses of washers and a maximum washer mass of at least 1000 g. Data The measurements we have to take are the mass of the washers for each new set of washers, and the time it took for 10 revolutions. The data for this is shown in Data Table 1. Data Table 1 chart Theory The hanging washers put tension on the string. This tension force is exerted through the entire string and acts as the centripetal force, which is the force acting towards the center of the circle, allowing the rubber stopper to move in a circular path. Even though the rubber stopper moves with constant speed in its circular path, it is accelerating towards the center of the circle. This is known as a centripetal acceleration. This acceleration demonstrates that there is an unbalanced force on the mass, and that force is the tension in the string. The red arrow shows centripetal force, which is tension. force Gravity is also acting on the mass, but it is in the vertical direction and not in the line of the centripetal force. Technically, the mass cannot be moving perfectly HORIZONTALLY because there has to be a force to counter the gravitational force. The string is slightly angled to give a small vertical component of tension to counter the weight of the mass. We can ignore that here because there is no vertical acceleration. The graph of the square of the speed (v2) VS centripetal force (weight of washers) gives us the ratio of the radius of the circle to the mass of the rubber stopper, which is the slope of the best-fit line through the data. Calculations and Graph The speed equation is velocity_eq v = speed in m/s d is distance the rubber stopper moves in its path in 1 revolution in meters R is the radius of the circle in meters t is the time for 1 revolution in seconds (each time in the data table divided by 10 because of the 10 revolutions) The weight of the washers is the mass of the washers times the acceleration due to gravity (9.8 m/s2). This information is tabulated in Data Table 2. Data Table 2 plot data We will graph this data, and draw a best-fit line through it. Speed 2 vs Centripetal Force graph Analysis We can see from the graph that the data plotted is linear. In fact, the slope of the line is given in the equation of the line, which is 0.633 m2/s2 / N. Let's analyze what these units reduce to. dim_analysis The equation for centripetal force is CF which can be rearranged to solve for v2/Fc. |
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| 46. |
The semicircular canals are located in ? |
| Answer» INNER earYour SEMICIRCULAR canals are THREE tiny, fluid-filled tubes in your inner EAR that help you keep your balance. When your head moves around, the liquid inside the semicircular canals sloshes around and moves the tiny hairs that line each CANAL. | |
| 47. |
N. The acceleration due to gravityvaries on earth with |
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| 48. |
What is the power of a motor,which takes a current of 6 A from a 220V line? (a) 132kW(b) 13.2kW (c) 0.13kW(d) 1.32kW |
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Answer» Power (P) is GIVEN by the expression,P = VIWhere,VOLTAGE,V = 220 VCurrent, I = 6 AP= 220 x 6 = 1320 WEnergy consumed by the MOTOR = PtWhere,Time, t = 2 h = 2 x 60 x 60 = 7200 sˆ´ P = 1320 x 7200 = 9,5.0jTherefore, power of the motor = 9,5.0j |
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| 49. |
A car travelling at9ms acceleration and attains a acceleration and distance moves in 5 seconds |
| Answer» 45 MITERS EXPLANATION:I HOPE this is USEFUL for you | |
| 50. |
G. When a body covers equaldistances in equal intervals of time, itis said to be in |
| Answer» UNIFORM motionExplanation:PLS FOLLOW and MARK as BRAINLIEST | |