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. |
Which type of nuclear process is currently used in nuclear electricity generator give one example each for substance used in this contest moderator nuclear fuel |
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Answer» cess of NUCLEAR FISSION of RADIOACTIVE material is CURRENTLY USED in nuclear power generator to produce electricity . |
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| 2. |
Name the satellite lanunched used to broadcast programmes |
| Answer» CATION Satellites are launched USED to BROADCAST programmes | |
| 3. |
Write the products when butane is combusted with oxygen and write the balanced chemical equation |
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Answer» 13O2=8CO2+10H2O |
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| 4. |
Find the equivalent resistance across a and b in the following case. |
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Answer» .................. |
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| 5. |
determine the focal length of convex lens in air of radii of curvature 24 cm and 32cm.what will be the focal length of the same lens if it is immersed in water |
| Answer» R RADIUS of curvature =HALF of FOCAL lengthOr we say R=1/2FGIVEN THAT | |
| 6. |
1. The moon is rotating at the same rate as it revolves around earth. |
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Answer» his happens the DAY and night there will be too short.and we will be able to see its ROTATING and its SECOND side.{ACCORDING to me} |
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| 9. |
Tell this plz urgent help me |
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Answer» uation is TRUE. OXYGEN's MOLE as a PRODUCT 10 mole but as a substrate 5mole. |
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| 10. |
Hot air moves _______ and cold air ________ its place. |
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Answer» ..YOUR ANSWER......THANKS ......HOT AIR MOVES UPWARD AND COLD AIR DOWNWARD ITS PLACE.... |
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| 11. |
Velocity = 10 m/s acceleration = 10 m/ s find height |
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Answer» leration = velocity/timetherefore time is 1snow h = u*t + 0.5*a*t²h = 10 + 0.5*10h = 15 m THUS height is 15 m |
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| 12. |
Why does platic file a huge variety of uses |
| Answer» FINDS out a huge VARIETY of users because it is highly DURABLE, cheaper and LIGHT in weight. | |
| 13. |
Derive the expression for conductivity in terms of resistivity using ohms law |
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| 14. |
In an ideal transformer, the voltage and the current in the primary coil are 200v and 2a respectively. If the voltage in the secondary coil is 2000v, then the value of current in the secondary coil will be |
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Answer» tion:I don't UNDERSTAND question PLEASE try again LATER Thanks |
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| 15. |
The earth and the moon are attracted to each other bygravitational force. Does the earth attract the moon with a forcethat is greater or smaller or the same as the force with whichthe moon attracts the earth? Why? |
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Answer» tract each other with same FORCE as according to the FORMULA for gravitational forceF = GMm/d^2as the no.s are CONSTANT for both the moon or earthhope it HELPS plz mark as brainliest |
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| 16. |
2 KG of water at 352 K is mixed with 2 KG of water at 302 K. Kept in a container what is the resultant temperature of this mixture? |
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Answer» ined by COLD body =heat lost by hot bodyQ=Heat energym=mass of waterc=Specific heat capacityHeat lostfor convenience convert TEMP in Kelvin to celcius by SUBTRACTING by 273t=final tempt2=INITIAL tempQ1=mc(t2-t1) =2 *4200*(79-t)heat gainedt=final tempt1= initial tempQ2=mc(t-t1)=2*4200(t-49)Q1=Q22*4200(79-t)=2*4200(t-49)79-t=t-492t=128t=64 |
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| 17. |
How much heat energy is necessary to raise the temperature of 5 KG water from 20°C 200°C |
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Answer» y of heat required to raise 5 kg of water from 20 0C to 1000C is given by the formula:Q=m×C×ΔT(Q is usually used to symbolize that heat required in a case like this.)For water, the value of .C is 4.186Jg°C.So,Q=750×4.186×85=266858J=266.858kJDT = TEMPERATURE difference =100-20=80 0C.Answer is 266.858kj1 calorie = 4.18 Joules. THUS 4180 Joules of energy of heats required for a Kilogram of water through just ONE degree centigrade. So, we are to save save energRead more on Brainly.in - brainly.in/question/6314388#readmore |
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| 19. |
Give reason why is calcium is formed in compound |
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Answer» is REACTIVE ELEMENT so it is FOUND as COMPOUND... .✧══════•❁❀❁•══════✧ |
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| 20. |
why a gas has two principle specific heat capacities?? what is the significance of Cp-Cv and Cp/Cv where symbols have usual meaning. |
| Answer» RY to understand this concept by a very PRACTICAL example you should be having two names one of your school and other of your home because one can't define you just by your single name Similarly in gas There are two terms that we use Cp => which means specific heat capacity of gas at constant pressure I.e to say when we supply heat to the gas at constant pressure it is defined as Cp and Cv= which means specific heat capacity of a gas at constant volume I.e to say when we supply heat to the gas at constant volume Cv is defined. Now Cv=fR/2 where f stands for degree of FREEDOM of the gas Cp=Cv+R And Cp/Cv=Y and it's value is 1.66 for monotonic gas , 1.53 for diatomic gas1.33 for triatomic gasHOPE YOU LIKE MY ANSWER PLEASE MARK THIS AS THE BRAINLIEST ANSWER THANK YOU | |
| 21. |
A solid cylinder is released from rest. If string does not slip relative to cylinder then find relative acceleration of A w.r.t B just after it is released. [ans :2 root2g/3] |
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Answer» re is ANSWER !!!I HOPE you help !!!DEAR Student ,Here in this case ,let the radius of the cylinder is r and tension be T .the MOMENT of inertia of RIGID cylinder is I = ½ mr² Torque = T r Again , torque = Iα So, T r = Iar⇒T = 12mr2ar2 ⇒T = 12maNow from the conservation of energy we can write that ,∆E=0⇒mgh−12mv2−12Iω2=0⇒mgh−12mv2−12(12mr2)(vr)2=0⇒gh−12v2−14v2=0⇒gh=34v2⇒v=4gh3‾‾‾‾√Regards |
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| 23. |
Does refraction is cause for dispersion of light |
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Answer» raction of light is defined as the bending of light when a light RAY passes through rarer to DENSER medium it is refracted away from the normal and vice VERSA. The best EXAMPLE of this question is refraction through PRISM. |
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| 24. |
lf the work done by a force in moving an object through a distance of 40cm in 48.4J .what is the magnitude of the force |
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Answer» that WORK DONE = FORCE * displacementhere displacement is 0.4 mtherefore48.4 = f * 0.4f = 121 Nwhich is the ANSWER |
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| 25. |
An electric bulb of 60w is used for 8hours per day. Calculate the units of energy consumed in 30 days by the bulb. |
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Answer» of ENERGY is =1 kw/hP=60w=60/1000=0.06kw(1kw=1000w)TIME =8 hoursEnergy consumed=P T=0.06 X 8 KWH=0.48KWHENERGY CONSUMED IN 30 DAY=30 X ENERGY=30 X 0.48=14.4kwhSo enery consumed in 30 DAYS is 14.4kwhHOPE THIS HELP U ...PLEASE MARL BRAINLEST..... |
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| 26. |
What happen on pressure in sudden compressing of air in piston cylinder? |
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Answer» e increases.The PRESSURE SIMPLY RISES to the value of relief set pressure and thereafter the pressure gets relieved. Relief valves/safety valves/overload relief valves are designed to limit the pressure in the system to a predetermined value. They act almost similarly to a fuse in an electrical circuit. Whenever there is HIGH current or spike beyond the rating of the equipment or wiring, the fuse gets blown & hence the equipment is protected from such surges. Look for the rated pressure on any equipment or a system. That usually GIVES the overload setting of relief value for that system/equipment.Hope it helps....... |
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| 27. |
What is sound and how effect on ears |
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Answer» MATE ❤️❤️ HERE IS UR ANSWER..SOUND IS A FORM OF ENERGY IT IS LONGITUDINAL WAVE THAT TRAVELS IN ONLY ONE DIRECTION...SOUND EFFECTS ON OUR EAR...WHEN SOUND TRAVELS THROUGH AIR WE COME TO HEAR THIS THROUGH OUR EAR DERM..HOPE THIS WILL HELP YOU ❤️ ❤️STAY BLESSED ❤️ ❤️ |
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| 29. |
Explain about land breeze |
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Answer» eeze : The breeze that blows from the land toward the sea after sunset. The land cools more quickly than the ocean, cooling the AIR above it. The WARMER air above the water CONTINUES to rise, and cooler air from over the land replaces it, CREATING a breeze. ( Compare sea breeze.)HOPE this will help you. |
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| 31. |
What happens when two insulators are rubbed together? |
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Answer» ly when TWO insulators are rubbed together it WOULD form STATIC or HEAT |
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| 32. |
if the earth shrinks to half of its radius,its mass remaining the same,the weight of an object on the earth will become how much times |
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Answer» ce due to gravity is m1 is the mass of the Earth and M2 to be the mass of the body. Force can also be represented as Further on substitution, the equation becomes Here we can SEE that the acceleration due to gravity or g is inversely proportional to Radius or r square. If mass is kept constant and G being universal gravity constant, radius is HALVED, then as radius decreases acceleration due to gravity increases, the new acceleration due to gravity becomes 4 TIMES g or 4g. Weight is CALCULATED as a Force. Weight = Mass of a body x Acceleration due to gravity. And hence the weight directly proportional to acceleration due to gravity increases 4 times the original value. This value is an approximate because here we don't consider the shape of the Earth, Variable Gravity fields and many other external influencing forces. |
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| 33. |
What is SI unit of thrust ? |
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Answer» hrust is the FORCE acting nornally on a surface. Its SI unit is newton (N). PRESSURE is force per unit area. Its SI unit is pascal (P) or newton per SQUARE METRE (N/m2). |
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| 34. |
Why water comes out more slowly from a tap on the first floor then from a tap on the ground floor |
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Answer» there is ACCELERATION DUE to GRAVITY |
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| 35. |
एक टीवी टावर की उचाई दिए गए स्थान पर 500 मीटर है यदि पृथ्वी 6400 किलो मीटर है तो प्रासरण प्रारास की गड़ना कीजिए |
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| 36. |
For metals the value of dielectric constant is |
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Answer» ✌️Answer :- ✍️✍️✍️☺️1 It is KNOWN as Relative permitivity☺️2.Taken relative to VACCINE ( k= 1)☺️3. And the RESPECT to vaccum metals are the most polarizable material.Thank... |
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| 37. |
Give a practical application of magnetic force |
| Answer» LS required______________1 container or drinking glassPipe cleaner (at least 1)ScissorsMagnet (about $4 from craft stores)SIMPLE SCIENCE Experiment for Kids on Magnetic Force Method______Use the scissors and cut up the pipe cleaners into 1 – 2cm strands. Add them to the container and close the lid. Place the magnet somewhere on the container, give the whole thing a light shake and you will find the strands are ATTRACTED to the magnet.This is because of the magnetic force. | |
| 38. |
What is the unit vector perpendicular to the vectors 2i+2j-k and 6i -3j +2k. there are 4 options and the ans is i-10j-18k the whole divided by 5 root 17. [but while calculating iam not getting the dot product as 0] why |
| Answer» E not DONE DOT PRODUCT CORRECTLYAND | |
| 39. |
If body of mass 1kg falls from the Height 5m how much energy does it posses at any instant ( g=9.8 |
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| 40. |
A cheetah runs a distance of 200 meters in 10 sec. What is the speed of the cheetah in m/s |
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| 41. |
What does negative sign means in the gravitational field intensity? |
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Answer» s that the DIRECTION of objects MOTION is opposite to that of GRAVITATIONAL FORCE |
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| 42. |
Bhavya cant see distant objects what type of vision defect she? how are defect can be corrected? explain with diagram? |
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Answer» is suffering from Myopia. She CANT see far objects but can see nearby objects. The image is formed in FRONT of the RETINA. It can be corrected by USING CONCAVE lens. |
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| 43. |
If 784 joule of work is done to lift an object to a height of 4m calculate the mass of object |
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Answer» ne=MghMgh=784 JM=784 /ghM=784/9.8×4M=20kg |
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| 44. |
How do we perceive objects as the are. |
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Answer» age is formed on the retina. The light SENSITIVE cells of retina get ACTIVATED and they generate electrical signals. These signals are send to BRAIN by the optic nerves for the interpretation. We can SENSE the object through our eyes, through touch or by the description given to US, through our imagination. |
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| 45. |
जड़त्व आघुर्ण तथा परिभ्रमण त्रिज्या से आप क्या समझते हैं ? |
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Answer» ण्ड की घूर्णन की दर के परिवर्तन के प्रति प्रतिरोध की माप उस पिण्ड का जड़त्वाघूर्ण (Moment of INERTIA) कहलाता है। किसी पिण्ड का जड़त्वाघूर्ण उसके आकार-प्रकार एवं उसके अन्दर द्रव्यमान के वितरण की प्रकृति पर निर्भर करता है। स्थानान्तरण गति में जो कार्य द्रव्यमान का है वही कार्य घूर्णन गति में जड़त्वाघूर्ण का होता है। जड़त्वाघूर्ण के प्रतीक के लिये I या कभी-कभी J का प्रयोग किया जाता है। जड़त्वाघूर्ण की अवधारणा का उल्लेख सबसे पहले यूलर (Euler) ने सन् १७३० में अपनी पुस्तक ' Theoria motus corporum solidorum SEU rigidorum ' में किया था।किसी स्थिर अक्ष के परितः कणों के किसी निकाय का जड़त्वाघूर्ण Ja, उन सभी कणों के द्रव्यमान तथा उनकी अक्ष से दूरी के वर्ग के गुणनफलों के योग के बराबर होता है। {\displaystyle J_{a}=\sum _{i=1}^{n}m_{i}r_{i}^{2}\,\!} {\displaystyle J_{a}=\sum _{i=1}^{n}m_{i}r_{i}^{2}\,\!}, जहाँ: mi — i-वें कण का द्रव्यमान RI — i-वें कण की अक्ष से लम्बवत दूर |
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| 46. |
What are the problems faced while living in zero gravity? |
| Answer» CLING waste water 2. creating breathable OXYGEN 3 maintaining a healthy heart 4 personal HYGIENE in space 5 eating in space 6 | |
| 47. |
Application of electrical conductor and insulator |
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Answer» cal insulators, such as glass, rubber, ceramics and plastic, exhibit a resistance that inhibits or entirely prevents electricity from TRAVELING through. In contrast, electrical conductors such as most common metals – silver, copper and steel – exhibit little resistance to electrical flow that encourages the travel of electricity. Examples of each can be found in most mundane settings. Charging cables use both to move electricity from a power source to an electronic device.When a material's electrons have little freedom to move from atom to atom, the material FUNCTIONS as an electrical insulator. Examples of this INCLUDE glass, rubber, plastic and air – the former three of which are often used in electronic circuitry and wiring. Rubber, in PARTICULAR, is often used as a wearable insulator to protect electricians and other specialists from shocks that could be dangerous or deadly without protection. At the same time, plastic is used in the coating of power cables to ensure that electricity flows only from the power source to your electric devices. In power GENERATION, electric cables are protected from the metal of the towers that carry them with large glass insulators. |
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| 48. |
What is the uses of steam engine |
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Answer» ngines were of great importance in the Industrial REVOLUTION. i) These engines were very useful to move machinery in mills, factories, pumping STATIONS and transportation applications.ii) In the field of transport, steam engines were OFTEN used in locomotives, ships and other LAND vehicles. |
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| 49. |
Define accuracy and pressision |
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Answer» ng that is accurate is exact and true. It's important to be accurate in the kitchen with your measurements and in the courtroom with your TESTIMONY. The adjective accurate comes from the Latin roots ad CURARE, meaning "to TAKE CARE," and that is PRECISELY what you do when you make sure something is accurate.precision means the quality of being clear or exact.Hope it helps ✌✌ Please mark it as brainliest.. |
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