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. |
For a specific process relation between pressure and volume |
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Answer» e here is your answerThe pressure of a gas is directly PROPORTIONAL to its temperature whenvolume is constant. The RATIO ofpressure to temperature is constant when VOLUME is constant. Thisrelationship is not associated with anyparticular SCIENTIST. A constant volume PROCESS is said to be isochoric. |
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| 3. |
Ecpression for time period |
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Answer» riod = 1/frequencyHope it HELPS |
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| 4. |
Electromagnetic radiations has maximum energy in which rays |
| Answer» AYS have MAXIMUM ENERGY and LEAST WAVELENGTH | |
| 5. |
an object 1 cm high produces a real image 1.5 CM when placed at a distance of 15 cm from a concave mirror calculate the position of the image and the magnification |
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Answer» high H1 = 1cmImage HEIGHT H2 = 1.5cmObject DISTANCE u = -15cm (OBJECT is taken behind the mirror)SINCE, magnification = image height/object height,M = H2/H1 = 1.5/1 = 1.5Since, also, magnification = image distance/ object distance=> 1.5 = image distance/-15=> image distance = -22.5cm=>22.5 cm behind the mirror |
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| 6. |
What is Difference between work, energy and power |
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Answer» s said to be done when a FORCE acting on a body produces DISPLACEMENT in it. S.I. Unit is joule. Depends on displacement.Power: is the RATE at which a body does work. S.I. Unit is watt. Depends on time.Energy: is the CAPACITY of a body to do work. S.I. Unit is joule. Does not DEPEND on displacement or time |
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| 7. |
A coil of copper wire is connected to a galvanometer. what would happen if a bar magnet is pulled out of the coil? |
| Answer» MAGNET is pulled out of coil then GALVANOMETER will DEFLECT in OPPOSITE direction | |
| 8. |
Which mirror has wider field of view? |
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Answer» here is your answer..., A convex mirror will diverge a beam of light and it gives a virtual image. The FOCAL LENGTH and radius of curvature of a convex mirror are virtual. The image PRODUCED is always up the right way and smaller than the object, the convex mirror gives wider field of view.I hope it will help you and mark me as a brain list answer PLZ. |
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| 9. |
Prove that displacement current is equal to conduction current |
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Answer» HERE IS YOUR ANSWER ..☞Assuming that we have a uniform ELECTRIC FIELD between the plates of a capacitor, we can find its intensity to be (using Gauss' Law) E(t)=σ(t)ϵ0=q(t)ϵ0AE(t)=σ(t)ϵ0=q(t)ϵ0A, where q(t)q(t) is the absolute value of the charge on each plate, and which is not constant in TIME since the capacitor is being charged. Now, considering a circular surface between the plates, with same radius R and the same axis as the plates, the electric flux will beΦE(t)=E(t)S=q(t)ϵ0AπR2=q(t)ϵ0.ΦE(t)=E(t)S=q(t)ϵ0AπR2=q(t)ϵ0.So, the displacement current isID=ϵ0∂ΦE∂t=dq(t)dt=I(t),ID=ϵ0∂ΦE∂t=dq(t)dt=I(t),hence, even if the current varies in time, the displacement current will be equal to it.I HOPE IT WILL HELP YOU AND MARK ME AS A BRAIN LIST ANSWER PLZ. |
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| 10. |
Three paragraph information on explosive material |
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Answer» HERE IS YOUR ANSWER..., An EXPLOSIVE material, or simply an explosive, is a reactive substance that contains a great amount of potential energy that can produce an explosion if released suddenly, usually accompanied by the production of light, heat, sound, and pressure. An explosive charge is a measured quantity of explosive material, which may be composed of a single ingredient or a combination of two or more.The potential energy STORED in an explosive material may, for example, be•chemical energy, such as nitroglycerin or grain dust. •pressurized gas, such as a gas cylinder or areosal can.•nuclear energy, such as in the fissile isotopes uranium-235 and plutonium -239.Explosive materials may be categorized by the speed at which they expand. Materials that denote (the front of the chemical reaction moves FASTER through the material than the speed of sound) are said to be "HIGH explosives" and materials that deflagrate are said to be "low explosives". Explosives may also be categorized by their sensitive. Sensitive materials that can be initiated by a relatively small amount of heat or pressure are primary explosive and materials that are relatively insensitive are secondary or tertiary explosive. I HOPE IT WILL HELP YOU AND MARK ME AS A BRAIN LIST ANSWER PLZ. |
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| 11. |
Why paper catches fire when a convex lens I used to focus sunlight? |
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Answer» x lens can be used to focus the parallel RAYS of sunlight passing through it, into a singular point. If this focal point is aimed accurately onto a PIECE of paper, then you will see a SMALL IMAGEOF the SUN at the focal point, and this is where the paper will begin to burn. |
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| 12. |
How does the light ray have to enter the glass to produce a large amount of bending |
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Answer» ite ⭐⭐✨✨^_^:-(:-(:-(:-(:-(:-(:-(:-(Your answer :-):-):-):-):-):-):-):-):-)::-):-)$$$${{{{{{{{{{. If light enters any SUBSTANCE with a higher refractive index (such as from AIR into glass) it slows down. The lightbends towards the normal line. If lighttravels enters into a substance with a lower refractive index (such as from water into air) it SPEEDS up. The lightbends away from the normal line. }}}}}}}$$$$$$$$£££££&&&&&&&&&&+££Hope Help your ££££££&&&&&&&&&+£££???((((@@((☝️☝️☝️please brainliest this answer☝️☝️))))))??????????????????☘️??????????☝️✨?????????????????????????????????????????☝️^_^✨☝️??????????????????? |
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| 13. |
Whether work happens there if a student reads a book? |
| Answer» NG to ENGLISH yesplease MARK as BRAINLIEST | |
| 14. |
Give a few applications uses of electro magnets in dailyv life |
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Answer» magnets are used in all kinds of ELECTRIC devices, including hard disk drives, speakers, motors, and generators, as well as in SCRAP yards to pick up heavy scrap metal. They're EVEN used in MRI machines, which utilize magnets to TAKE photos of your insides |
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| 16. |
A stainless steel wire is 3mm in diameter and 1m in length. The resistivity of steel is 70 |
| Answer» IND the AREA of cross SECTION of wire by using formula πr square.given , diameter= 3mm=0.3 mradius =0.3/2marea of cross section =22×0.3/2 ×0.3/2 = 99/200 m square .by using formula of resistivity,=R×A/ lengthI hope you can SOLVE it.... | |
| 17. |
Two conductors have same value of resistivity. These conductors can be differentiated from the values of their a)Temperature coefficient b)resistances c)conductanced)conductivity |
| Answer» NCE is the answer.Resistance is DEFINED as the opposition to the FLOW of ELECTRICAL current through a conductor. It's important to point out that conductivity and resistivity (the property that determines final resistance) are inversely proportional. The more conductive something is, the less resistance it will have.Hope it HELPS. | |
| 18. |
Distinguish between series combination and parallel combination |
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Answer» YOUR ANSWER :- Electrical circuits are made up of both these KIND of circuits but there is difference between SERIES and parallel circuits. An electric circuits consists of many instruments attached to it such as resistors, diodes and SWITCHES which are positioned in a circuit structurally. And with these structure of placement there is a difference in output.Difference Between Series and Parallel CircuitsThe major difference is that the series circuit have the same amount of current flow through all the components placed in it. It got its name due to the components are placed in the same single path of the flow of current in electric circuit. On the other hand, in parallel circuits the components are placed in parallel with each other. This circuit splits the current flow. The current FLOWING from the source will be divided into the current flowing through each of this components.Difference Between Series and Parallel CircuitsSeriesParallelSame amount of current flows through all the componentsThe current flowing through each components combine to form the current flow through the source.In an electrical circuit, components are arranged in a lineIn an electrical circuit, components are arranged parallel with each otherWhen resistors are put in a circuit, the voltage ACROSS each resistor is different even though the current flow is same through all of them.When resistors are put in this circuit, the voltage across each of the resistors is same. And even the polarities are sameIf one component breaks down, the whole circuit will burn out.Other components will function even if one components breaks down, each have their own independent circuitIf Vt it total voltage then it is equal to V1+V2+V3MARK AS BRAINLIESTTHANX |
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| 19. |
Write the function of i) Armature ii) Carbon brushes iii) Commutator |
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Answer» dy here is ur answer !!!》》The armature's role is two FOLD. Commutator and Brushes on DC Motor. To keep the TORQUE on a DC motor from REVERSING EVERY TIME the coil moves through the plane perpendicular to the magnetic field, a split-ring device called a commutator is used to reverse the current at that point. 《《HOPE U LIKE !!》》 BE BRAINLY 《《 |
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| 20. |
Why sunset and sunrise are red ???? |
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Answer» ue to atmospheric refraction as the RED LIGHT has maximum WAVELENGTH so it refracts very much Hop it helps uuuu CHEERS |
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| 22. |
Why does water falling from a tap gets thinner at the bottom? |
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Answer» opened the tap, WATER flowing out from the openening became thinner as it flowed down. The same thing also happened when WEATHER came out of a bottle. What is the reason for this?Is it because the velocity of water increases as it flows down which results in a decrease in cross SECTIONAL AREA? |
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| 23. |
What are the best books (after NCERT) of physics after 10th |
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| 24. |
What is meant by power of accommodation name the component of height at is responsible for the? |
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Answer» f accomodation he ability or the PROPERTY of the EYE lens to adjust its focal length in order to be able to focus both near and DISTANT objects is KNOWN as the power of accommodation.ciliary muscles are responsible |
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| 25. |
What happens to the waste of nuclear power plant? |
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Answer» wastesThe most significant high-level waste from a nuclear reactor is the used nuclear fuel left after it has spent about three years in the reactor generating heat for electricity. Low-level waste is made up of lightly-contaminated ITEMS LIKE tools and WORK clothing from power plant OPERATION and makes up the bulk of radioactive wastes. Items disposed of as intermediate-level wastes might INCLUDE used filters, steel components from within the reactor and some effluents from reprocessing. |
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| 26. |
What is a resistor and explain about resistivity |
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Answer» r is a device which is USED to obstruct the FLOW of ELECTRICITY......According to Ohm's low RESISTANCE is directly PROPORTIONAL to the currentHope it'll Help You.......Have a nice day.... |
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| 28. |
Suggest some alternative ways to dispose sewage |
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Answer» treatment is the process of removingcontaminants from municipal wastewater, containing mainly household sewage plus some industrial wastewater. PHYSICAL, chemical, and biological processes are used to remove contaminants and produce treated wastewater (or treated EFFLUENT) that is safe enough for release into the environment. A by-product of sewage treatment is a semi-solid waste or slurry, called sewage sludge. The sludge has to undergo further treatmentbefore being suitable for disposal or application to land.Sewage treatment may also be referred to aswastewater treatment. However, the latter is a broader term which can also refer to industrial wastewater. For most cities, the sewer system will also carry a proportion of industrial effluent to the sewage treatment plant which has usually received pre-treatment at the factories themselves to REDUCE the pollutant load. If the sewer system is a combined sewer then it will also carryurban runoff (stormwater) to the sewage treatment plant. Sewage water can travel towards treatment plants via piping and in a flow aided by gravity and pumps. The first part of filtration of sewage typically includes abar screen to filter solids and large objects which are then collected in dumpsters and DISPOSED of in LANDFILLS. Fat and grease is also removed before the primary treatment of sewage.thanks |
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| 29. |
What is the difference between charging by conduction and charging by induction? |
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Answer» rast to induction, where thecharged object is BROUGHT NEAR but never contacted to the object beingcharged, conduction charging involves making the physical CONNECTION of thecharged object to the neutral object. Because charging by conductioninvolves CONTACT, it is OFTEN calledcharging by contact. |
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| 30. |
Magnetic field due to a current through a circular loop in hindi |
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Answer» c field due to CURRENT in a circular loopThe shape of the MAGNETIC flux lines : To identify the shape of the magnetic lines , carry out the following steps :Spread iron filings on a BOARD surrounding a circular loop carrying electric current .Tapping it gently , the iron filings arrange themselves .Observation :The flux lines near the center of the loop are no longer circularThe magnetic flux density changes from point to point .The magnetic flux lines at the center of the loop are STRAIGHT PARALLEL lines perpendicular to the plane of the coil .Conclusion :The magnetic filed due to a current in a circular loop is similar to the magnetic field of a shortmagnet .The magnetic field at the center of the coil isuniform so , the magnetic filed lines are parallel and perpendicular to the plane of the coil .thanks |
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| 31. |
Explain the use of voltage transformer and current transformer in transformer station |
| Answer» E here your answer ☺☺___________________voltage transformers and they are basically STEP down transformers with extremely accurate turns RATIO. Potential transformers step down the voltage of high magnitude to a lower voltage which can be measured with standard measuring instrument. These transformers have large number of primary turns and smaller number of secondary turnsA potential transformer is typically expressed in primary to secondary voltage ratio. For example, a 600:120 PT would mean the voltage across secondary is 120 volts when primary voltage is 600 volts.Current Transformers (CT)Current transformers are generally used tomeasure currents of high magnitude. These transformers step down the current to be measured, so that it can be measured with a normal range ammeter. A Current transformer has only one or very few number of primary turns. The primary winding MAY be just a conductor or a BUS bar placed in a hollow core (as shown in the figure). The secondary winding has large number turns accurately wound for a specific turns ratio. Thus the current transformer steps up (increases) the voltage while stepping down (lowering) the current.thanks | |
| 32. |
If a concave mirror of focal length 10 cm is immersed in water;then what will be its focal length |
| Answer» E here your ANSWER ☺☺☺☺_________________________________Remain same , because the FOCAL length of mirror doesn't depend on the external median in which it is HELD I. case of lenses is emerged in which the value of refractive INDEX decrease hence the focal length increase______________ thanks☺☺ | |
| 33. |
Write the name of particles present in quick lime |
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Answer» and OXYGEN..... MARK as BRAINLIEST |
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| 34. |
Name the defect of vision which can be corrected by a converging lens. Show clearly by a ray diagram how the lens correct the defect |
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Answer» tropia it is corrected by USING a converging LENS that is a convex lens mark as BRAILIEST |
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| 35. |
A simple pendulum completes 50 vibrations in 10 sec. find the frequency and time period of the vibrations. |
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| 36. |
A chemical equation is balanced by changing or adding a subscripts. b chemical symbols. c reactants. d coefficients |
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Answer» ientsPlssssssss MARK me BRAINLIEST PLSS |
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| 37. |
The distance of a particle moving along a straight line from another stationary point on the same line is given by x=6t^2+8t+2 (x in metre and t in seconds) the average speed of the particle between 2nd and 4th second will be- (i)22m/s (ii)20m/s (iii)44m/s (iv)40m/s |
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Answer» I d knznznxdnndndnExplanation:nxndnfmnnxdjjdnsokzmxmxnnfjfdmnsnsnxnxnxkmzxdd |
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| 38. |
What is tidal energy and wave energy |
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Answer» nd waves are two natural occurrences that transpire on water and whilst they are similar in that they are related to BODIES of water, their ABILITY to GENERATE ENERGY differs in a range of aspects with regards to GENERATION, power and reliability |
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| 39. |
Can the speed of light be compared?if yes/no then why? |
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Answer» d with????????? |
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| 40. |
Adults need at least 1 hour and 30 minutes of vigorous-intensity aerobic activity per week for important health benefits. Please select the best answer from the choices provided. TRUE FALSE |
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Answer» t's FALSE..... |
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| 41. |
When charcoal is born in closed room why it is harmful |
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Answer» arcoal is BURN in CLOSES room it PRODUCE some HARMFUL GASES which is very dangerous for us |
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| 42. |
Two vessels of the same size are at thesame temperature. One of them contains 1 kgOf hydrogen (molecular weight 2) and theother contains 1 kg of nitrogen (molecularweight 28)2.exasa) Which of the vessels contains moremolecules?b) In which vessel is the averagemolecular speed greater? How manytimes greater?c) Which of the vessels is at higherpressure? Why? |
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Answer» the volume and TEMPERATURE is IRRELEVANT since you have SPECIFIED equal mass. Thus the ratio of numbers of atoms is the inverse of the ratio of the ATOMIC weights of hydrogen and helium. For the ratio of molecules you must double the hydrogen atomic weight to get its molecular weight.Ratio of Atoms 1.008 : 4.002602 so the ratio is 1/(4.002692/1.008) or 0.252There are roughly four times as many hydrogen atoms as helium atoms, in TERMS of molecules the numbers are roughly two times more hydrogen molecules than helium atoms. |
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| 43. |
Magnetic effect of electric current was discovered by a scientist named._______ |
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Answer» e here's your answer :By Hans Christian Oersted in 1280.HOPE IT HELPS U and plz FOLLOW me plzzz. PLZZ MRK as brainliest. |
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| 44. |
A ray of light enters into benzene from air. If the refractive index of benzene is 1.50, by what percent does the speed of light reduce on entering the benzene? |
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Answer» is HELPS you!!! |
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| 45. |
In what ways is lightning useful |
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Answer» ghtning slices through the ATMOSPHERE, it KNOCKS electrons from the NITROGEN atoms. The atoms are then free to COMBINE with oxygen and hydrogen in the atmosphere forming nitrates. Rain carries this new compound to the earth ENRICHING the soilwith nitrates which are the building blocks of proteins. |
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| 46. |
What do you understand by a sonic boom |
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Answer» object moves with higher than the SPEED of the sound it produces it produces shock waves which carry hogh energy. The air pressure varriation associated with it produces a extremely loud sound which is CALLED SONIC BOOM |
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| 47. |
Name the component of white light that has the shortest wavelength |
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Answer» is the shortest wavelength is violet... Hope it helps you my dear friend.. PLEASE mark my ANSWER as brainliest.. ✌❤✌ |
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| 48. |
Describe with the help of a diagram how you would use electroscope to detect and measure the charge... I will mark u the brainliest |
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Answer» re of Electroscope : It is MADE of a GLASS jar. A vertical brass ROD is inserted into the jar through a cork. The TOP of the brass rod has a horizontal brass rod or a brass disc. Two gold leaves are suspended from the brass rod, inside the jar. Hope this HELPS : ) |
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| 49. |
Describe with the help of a diagram how you would use electroscope to detect and measure the charge? |
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Answer» re some simple electroscopes.Structure of Electroscope : It is MADE of a GLASS JAR. A vertical brass rod has a horizontal brass rod or a brass disc. Two gold leaves are suspended from the brass rod, INSIDE the jar. Hope this HELPS : ) |
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| 50. |
Relation between magnetic flux density and Magnetic Field Strength |
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