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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. |
A Projectile is fired upward at an angle with horizontal with velocity u. Show its trajectory is parabola. Obtain expression fori) Maximum heightii) Time of flightiii) Range |
| Answer» TWO particles projected from the same point with same speed u at angles of projection α and β strike the horizontal ground at the same point. If h 1 and h 2 are the MAXIMUM heights attained by the PROJECTILE, R is the range for both t 1 and t 2 are their times of FLIGHTS, respectively, then | |
| 2. |
A train can cover 65km in 45 minutes. What is the average speed of the train? |
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Answer» -EXPLANATION:-DISTANCE COVERED by body=65km =65×1000m =65000mTime taken by the body=45min =45×60 =2700secAverage speed=total distance covered by total TIME taken Average speed=65000/2700 = 24.00m/sHOPE IT HELPS!!!... |
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| 3. |
नेम टू फैक्टर्स ऑन व्हिच द टाइम पीरियड ऑफ द सिंपल पेंडुलम डस नॉट डिपेंड |
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Answer» riod doesn't DEPEND ON1) MASS of the Bob2) LENGTH of the STRING |
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| 4. |
Draw a norten circuit and also thevnin circuit |
| Answer» UR ANSWER attachedHope it helpsPls MARK me as the BRAINLIEST!! | |
| 5. |
Draw the diagram showing radius of curvature and principal axis for a concave mirror answer |
| Answer» HOPE this HELPS youpls mark as BRAINLIEST PLSSS | |
| 6. |
An object of mass 30 kg is in free fall (9.8m/s2) in a vacuum where there is no air resistance. Determine the acceleration of the object. |
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Answer» ation on the object is 9.8m/s^2 BECAUSE1). Body is in Free FALL [No external force is acting on it except for that exerted by earth]2). The mass is given just to confuse CHILDREN, there's no reason for mass to be mentioned here as if we drop a feather and coin in vacuum both will fall at the same time. Another reason is that the equations of motion don't have any variable of mass in them. HOPE it helps.Do mark as brainliest. |
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| 7. |
Mike drives his car 60 km in 55 minutes. What is its average speed in kilometers per min? |
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Answer» 1.0909090909 09 is ACTUALLY RECURRING Explanation:s=60 KMT= 55 minv=s÷tI.e 60/55 |
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| 8. |
Instead ofplastic, can the electric wirebe covered with aluminium foil?Justify your answer |
| Answer» TION:No, it can't be covered with aluminium foil as aluminium is a conductor of electricityand we may GET electric SHOCK whereas plastic is a BAD conductor of electricity so it is USED to cover wires.I think it helps you... | |
| 9. |
An object of mass 300 kg is observed to accelerate at the rate of 4 m/s2. Calculate the force required to produce this acceleration |
| Answer» FORMULA F=maExplanation:f=(300×4)f=1200 N | |
| 10. |
What are three types of life cycles in plants. Give examples |
| Answer» LIFE CYCLE and ETC and MANY THINGS | |
| 11. |
Write any three qualities of a good earthing system. |
| Answer» QUALITIES of GOOD Earthing include:ELECTRICAL Resistance must be of low.Must be good corrosion resistant.Must be able to SUPPRESS high fault current repeatedly. | |
| 12. |
# numerical value of G can also be established by knowing the; A. Average density of EarthB. Circular motionC. Mass of EarthD. None |
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| 13. |
John runs from one end P to the other end Q of a straight 600 m road in 2 minute 40 seconds and then turns around and runs 400 m back to point R in another 1 minute 40 seconds. What is John's averagespeed and average velocity from P to R? |
| Answer» 1KM Is the CORRECT ANSWER of this QUESTION | |
| 14. |
A.B.C are three identical uncharged metel sheets. A is charged positively, B is charged negatively and C is uncharged. It Ma,MB, and Mc are masses of sheets after charging, correct statement is |
| Answer» B is CORRECT ANSWEREXPLANATION:HOPE it is RIGHT | |
| 15. |
On the ground the gravitional force on a satelite is W . whar iw the gravitational force on the satelite when at a height R/50? |
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Answer» vitational force between TWO OBJECTS due to their masses isF=Gm1m2r2 whereF= force in newtonsm1= mass of first object in kilogramsm2= mass of SECOND object in kilogramsr= distance between centres of the objects in metresG= the "gravitational constant", APPROXIMATELY equal to 6.674×10−11Nkg−2m2 This idea was first formulated by Isaac Newton, and published by him in 1686.In this problem, let m1=mE= mass of the earth; let m2=mS= mass of the satellite.On the ground:W=GmEmSR2 , where R is the radius of the earth.In orbit:F=GmEmS(R+R50)2=GmEmS(51R50)2 where F is the force we're looking for.Put the two together:F(51R50)2=WR2 F(5150)2=W F=25002601W |
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| 16. |
A person jogs 10 miles at a speed of 5 mi/h how long did it take?Help please |
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Answer» We are given that it takes 1/2 an HOUR for the trip. This is a time: t = 1/2We are given that he averages 34 miles PER hour. This is a rate: r = 34We are asked how few he has traveled. This is a distance. We use the d=RT equation: d = rt = (34)(1/2) = 17Markus lives 17 miles from work.Explanation:hope this will HELP you |
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| 17. |
B. State the scientific and eco-friendly methods of waste management.plss give the ans.......plssplss |
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Answer» The scientific and eco-friendly methods of WASTE MANAGEMENT are: Incineration: Incineration is a process of solid waste DISPOSAL in which the waste is burned at very high temperatures, RESULTING in reduction of weight and volume of the waste, and decrease in TOXICITY of hazardous components of the wastes |
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| 18. |
3001300ZL600JLपरिपथ मै भाधम धारा का मान जार करो |
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Answer» विद्युत आवेश के गति या प्रवाह में होने पर उसे विद्युत धारा (इलेक्ट्रिक करेण्ट) कहते हैं। इसकी SI इकाई एम्पीयर है। एक कूलांम प्रति सेकेण्ड की दर से प्रवाहित विद्युत आवेश को एक एम्पीयर धारा कहेंगे। । |
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| 19. |
The speed of swimmer in still water is 20 m/s. the speed of river water os 36km/hr and flowing to east. if he is standing on south bank and wishes to cross the river along the shortest path, the angle at which he should make his strokes given by ??? 30 west to northzero degree 60 west to north45 west to north |
| Answer» 45 WEST to NORTH it's your ANSWER | |
| 20. |
What will be force of an object if the mass is 10 kg and accelaration is 10 m/s |
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Answer» tion:Weight varies with location DEPENDING UPON the ACCELERATION due to gravity eg. for a mass m = 10kg on EARTH it`s weight is W = MG = 10 x 10 = 100N. |
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| 21. |
A balloon is ascending at the rate of 9.8 |
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Answer» The FORCE USED WOULD be GRAVITATIONAL force and FRICTIONAL force |
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| 22. |
यदि किसी पिंड की गति को दुगुनी कर दी जाए तो पिंड की परिणामी ऊर्जा और प्रारम्भिक गति का अनुपात क्या होगा l |
| Answer» TE in ENGLISH PLEASE | |
| 23. |
a person with a myopic eye cannot see object beyond -1.2 m distinctly . the power of the corrective lens used to restore vision is |
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Answer» myopia: the PERSON who is suffering with status can I able to see near distance but he cant able to see for distance.the CONCAVE LENS USER for the correction of this defect whose focal LENGTH= farpointf= -1.2m power this lens is 1/1.2 Dp= 0.833 Diaptor |
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| 24. |
Which anion is the weakest base ? A)C2H5O- , B)NO3-, C)CH3COO-, D)CN- |
| Answer» TION:HOPE IT WILL HELP YOU.... | |
| 25. |
Spanners have a long handle . give reason |
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Answer» A spanner have a long handle it is because, if the arm length is long, then the MOMENT of force will be high, then, less force is only needed to do the desired ACTION for the spanner. Thus, to reduce the required force, which is to be exerted, the spanner have a long handle, which ALSO INCREASES the moment of force.Explanation:hope it helps.... mark it BRAINLIEST please... |
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| 26. |
Bob walks 3 meters norths,then 4 meters east.What distance did bob walk? |
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Answer» 7m Explanation:We know That DISTANCE Is addition of TOTAL Distance = 3m+4m = 7m I hope you LIKE ʘ‿ʘ make SURE to Thanks |
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| 28. |
A particle is projected horizontaly from the top of a lower with velocity 5 m/s. The radius of our careof the path of the particle after 05 s is(1) 5 m2) 10m5E(4 52 |
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| 29. |
A CYCLIST MOVES FROM A CERTAIN POINT X |
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Answer» A cyclist moves from a CERTAIN point "X" and moves AROUND a CIRCULAR path of RADIUS "r". Of the cyclist reaches a point "z" as shown in the figure. Then the DISTANCE travelled and magnitude of displacement of cyclist are : dhruthi2007 is waiting for your help. |
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| 30. |
A bullet of mass 20g traveling with a velocity of 100m/s strikes a mud wall-40cm thick and comes out with a velocty of Som/s. Find the opposing force exerted by the wall. |
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| 32. |
उत्तल लेंस के सामने 1cm की एक वस्तु का प्रतिबिंब लेंस के पिछे 20 cm के दूरी पर बनता हैं यदि लेंस की फोकस दूरी 10 cm हैं तो वस्तु की प्राकृत बताइए |
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| 33. |
© Draw the diagram of a concavemixos, pointing Radius of cuxvolumeand principal axis |
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Answer» radius of curvature: gap between pole and focus is CALLED radius of curvatureR=2fprincipal axis: an IMAGINARY LINE which passes through centre of curvature and pole is squad PRINCIPAL axis |
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| 34. |
Work done by simple pwndulum in half oscillation |
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Answer» The work done by the TENSION in the STRING of a SIMPLE pendulum in ONE complete oscillation is equal to. |
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| 35. |
उत्तल लेंस के सामने 1cm की एक वस्तु का प्रतिबिंब लेंस के पिछे 20 cm के दूरी पर बनता हैं यदि लेंस की फोकस दूरी 10 cm हैं तो वस्तु की aawardhan छमता निकाले |
| Answer» HI EVERYONE how are you | |
| 36. |
Pls answer Q5 no spamming |
| Answer» EVERY action has an equal and opposite reaction." Throw a ball at a wall.At the instant of collision the ball exerts a FORCE on the wall in the DIRECTION of its motion and as a response the wall REACTS by applying an equal force back on the ball in the direction opposite to its motion before collision. | |
| 37. |
In a mateso, sound travels we i sand air it travels zum in 10s. The state of thewavelengths of sound in the two medio respectively |
| Answer» TION:GIVEN, (In AIR)VELOCITY V=340m/sFrequency f=20,000HzWavelegth λ=?V=f.λλ= F/V = 20,000/340 =0.017HzAlso, Given (in WATER)Velocity, V=1480m/sFrequencyf=20,000Hzwavelength, λ=?V=F.λλ= F/V =20,000/1480 =0.074Hz | |
| 38. |
A mini bus starts from rest at bus stop with a uniform acceleration during 10th minute of its motion its covers a distance of 95meters.Calculate its acceleration and the total distance it covers in 10 minutes |
| Answer» TION: acceleration.During the 10TH minute of its MOTION it COVERS a distance of 95 m . calculate its acceleration and total distance it. | |
| 39. |
3. Acceleration of a body is given by the equation a = (4 - 3v) m/s2 Speed v is in m/s and t is insecond. If initial velocity is zero then terminalvelocity of the body is |
| Answer» TION:jfkienggmrneonekerjk3tnkvnsnlfsfm9v | |
| 40. |
a man stole electricity through hooking , he did earthing at the backside of of his house no pond located around his house . one day the man faced low electricity , and how will he fix the problem |
| Answer» SEARCH in google Or doubt apphope it's HELPS you PLEASE MARK me as Brainliest and follow me | |
| 41. |
उत्तल लेंस के सामने 1cm की एक वस्तु का प्रतिबिंब लेंस के पिछे 20 cm के दूरी पर बनता हैं यदि लेंस की फोकस दूरी 10 cm हैं तो वस्तु प्रतिबिंब की उचाई निकाले |
| Answer» MARK me as BRAINLIEST so I will FOLLOW you PLEASE mark me as brainliest so I will follow you | |
| 42. |
State and prove gauss theorem in electrostatic |
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Answer» Gauss THEOREM states that the electric flux ΦE through any closed SURFACE is equal to 1 / ɛo TIMES the 'net' charge q is ENCLOSED by the surface . ... Consider , A surface or area ds having having ds(vector) . Normal having the flux at ds .hope this helps... |
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| 43. |
Q. 35. A block of mass 15 kg is placed on a long trolly. The coefficient of friction between the block and the trolly is 0-18. The trolly accelerates from rest with 0.5 m 5-2 for 20 s and then moves with a uniformvelocity. Discuss the motion of the block as viewed by (a) a stationary observer on the ground (b) anobserver moving with the trolly. |
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Answer» ndExplanation:(Question a)Mass of the block, m = 15 kgCoefficient of static friction, = 0.18Acceleration of the trolley, a = 0.5 m/s As per Newton's second law of motion, the force (F) on the block caused by the motion of the trolley is given by the relation:F = ma = 15 x 0.5 = 7.5 NThis force is acted in the direction of motion of the trolley.Force of static friction between the block and the trolley:f = mg= 0.18×15× 10 = 27 NThe force of static friction between the block and the trolley is greater than the applied external force. Hence, for an observer on the GROUND, the block will APPEAR to be at moving with constant acceleration. When the trolley moves with uniform velocity there will be no applied external force. Only the force of friction will act on the block in this situation.(Question B) An observer, moving with the trolley, has some acceleration. This is the case of a non-inertial frame of reference. The frictional force, acting on the trolley BACKWARD, is OPPOSED by a PSEUDO force of the same magnitude. However, this force acts in the opposite direction. Thus, the trolley will appear to be at rest for the observer moving with the trolley. |
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| 44. |
What does the streamlined shape mean narrow at front rounded at back or rounded in front narrow at back? |
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Answer» It is ROUNDED in front and narrow at BACK because this helps them to make the MOVEMENTS easily and efficiently |
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| 45. |
V= 20m/s , u= 0 m/s , t = 20 s. Then a = _____m/s |
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Answer» a=v-u/ta=20-0/20a=1m/s²hope it HELPS.... |
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| 46. |
a piston and a cylinder machine contains a fluid system which passes through a complete cycle of four prossess.during a cycle the sum of alla hest transfers is -170kJ.the system completes 100 cycles per minute. |
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Answer» it is to HARD QUESTION . I am not ABLE to give your answer SORRY |
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| 47. |
Althrough both water and oil are liquids but oil is thicker than water why |
| Answer» OIL and WATER bottle liquids but VISCOSITY of LIQUID is more than viscosity of water that is the reason why oil is THICKER than water | |
| 48. |
एलसीआर परिपथ क्या है वर्णन करें |
| Answer» HUME KAISE PATA hogaExplanation:HAPPY BIRTHDAY tupu jiji | |
| 49. |
उत्तल लेंस के सामने 1cm की एक वस्तु का प्रतिबिंब लेंस के पिछे 20 cm के दूरी पर बनता हैं यदि लेंस की फोकस दूरी 10 cm हैं तो वस्तु दूरी निकाले |
| Answer» EM TA DE LOKI SA fuiji senkaku | |
| 50. |
Ve3) Imagine and write what would happenif there were nospherical mirrors today |
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Answer» t use torch light to throw an INTENSE beam of light to a large DISTANCE. we will face problem while DRIVING both from bike as well as because Convex mirrors are used in MOTORCYCLES and automobiles which enable the driver to see the automobiles COMING behind him. |
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