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 power when focal length of concave lens is 25cm. |
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Answer» o the above ATTACHMENT ❤️ |
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| 2. |
the equation motion of particle is shm is a+16πx=0 .in the equation 'a' is the linear acceleration (in m/sec) of the particle at displacement x |
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Answer» tion: how was your day at HOME and you was so not not a way to do that in your best day and you was so GOOD and good day and I was a best TIME of a ONE and you was not |
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| 3. |
Who discovered the presence of neutral particle inside the atom. |
| Answer» CHADWICK discovered neutron so discovered the PRESENCE if NEUTRAL PARTICLE | |
| 4. |
Discovered the presence of neutral particle inside the atom. |
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Answer» tion:The story begins in 1932, with the discovery of the neutron by Sir James Chadwick, an English physicist. Until 1932, the ATOM was known to consist of a POSITIVELY CHARGED NUCLEUS surrounded by enough negatively charged electrons to MAKE the atom electrically neutral. |
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| 5. |
What is turning point of the trajectory of a particle moving under a central force |
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Answer» sorry I Do not KNOW Explanation:MARK me as brilliant and FOLLOW |
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| 6. |
Find the enthalpy change for the reactionCS2(l) + 3 O2(g) → CO2(g) + 2 SO2(g)when:C(s) + O2(g) → CO2(g); ΔHf = -393.5 kJ/molS(s) + O2(g) → SO2(g); ΔHf = -296.8 kJ/molC(s) + 2 S(s) → CS2(l); ΔHf = 87.9 kJ/mol |
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Answer» apPOwkwjjqaass |
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| 7. |
Who is mp of minister |
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Answer» The Chief MINISTER of MADHYA Pradesh is Shri Shivraj SINGH CHAUHAN, |
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| 8. |
Please tell me correct answer hop some one help me |
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Answer» question is too LONG, you should add more POINT so that ANYONE is EAGER to ANSWER. |
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| 9. |
What is thermo decomposition? Give two examples? |
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Answer» Thermal DECOMPOSITION is a CHEMICAL reaction where a single substance breaks into two or more simple substances when heated. ... Decomposition of calcium carbonate:Calcium carbonate (lime STONE) decomposes into calcium oxide (QUICK lime) and carbon DIOXIDE when heated. Quick lime is the major constituent of cement. |
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| 10. |
While crossing a siver ina boat, if passengers are allowed to stand, the boatwill overturn why? |
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Answer» Greater the radial DISTANCE, greater will be the torque on the boat and greater will be the chances of it toppling. If the passengers in the boat stand up, in EFFECT, they raise the centre of gravity of the system and hence, INCREASE the radial distance of the centre of gravity from the axis of rotation.Explanation: |
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| 11. |
What is mean by projectile motion? show that the path of projectile is a parabola. I will mark them as brainlist |
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Answer» body or object upwards at an angle theta other than 90° with horizontal is called projectile. ♤Let projectile is THROWN with a initial VELOCITY U at an angle theta there with horizontal. ... HENCE path of projectile(Trajectory) is a PARABOLA....hope it helped u ☺️ |
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| 12. |
Fue ligueid is the senface tnection to Dit is told the formunda for the rise th ofin a capeiany tube of nalious onh = hayo.The neg is te. dencity ofleculeә dis h25I is the acceleration dewdew do gnivity,check Whether the formula is crent.if not. Can you predie the Chent formural |
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Answer» Surface TENSION REDUCES ACCORDING to the number of surface-active molecules in a given surface area. An INCREASE of surfactant molecules lowers surface tension, as the net attractive FORCES among surfactant molecules is less than those for water molecules. |
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| 13. |
Study the diagram given below and answer the following questions, (a) What is the equivalent resistance of the given circuit?(b) Find the amount of current flowing through each resistor. |
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Answer» AS THE CIRCUIT IS CONNECTED IN PARALLEL SO EQUIVALENT RESISTANCE WILL BE LET R1 = 5 OHMLET R2 = 10 OHMLET R3 = 30 OHMSO RESISTANCE = 1/R1 + 1/R2 + 1/ R3 =1/5 + 1/10 + 1/30 = 6+3+1/30 = 10/30 = 1/3 OHM CURRENT FLOWING THROUGH EACH RESISTORS = I = V/R I = 6/5 AMPERE CURRENT IN FIRST RESISTOR. I = V/R = 6/10 = 3/5 AMPERE SECOND RESISTORI = V/R = 6/30 = 1/5 AMPERE THIRD RESISTOR |
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| 14. |
What happens if we kept electric cell for some years can it losses the electricity explain briefly |
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Answer» tion:We use electricity for many purposes to make our tasks easier. For example, we use electricity to operate pumps that lift WATER from wells or from ground level to the roof TOP tank. What are other purposes for which you use electricity? List some of them in your notebook.We use electricity for many purposes to make our tasks easier. For example, we use electricity to operate pumps that lift water from wells or from ground level to the roof top tank. What are other purposes for which you use electricity? List some of them in your notebook.Does your list include the use of electricity for lighting? Electricity makes it possible to light our homes, roads, offices, markets and factories even after sunset. This helps us to continue WORKING at night. A power station provides us with electricity. However, the SUPPLY of electricity may fail or it may not be AVAILABLE at some places. In such situations, a torch is sometimes used for providing light. A torch has a bulb that lights up when it is switched on. Where does the torch get electricity from? |
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| 15. |
8. A coil of insulated copper wire is connected to a galvanometer. What will happenif a bar magnet is :(a) Pushed into the coil(b) Withdrawn from the coil.Draw a diagram for each situation |
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Answer» a) a MOMENTARY DEFLECTION in the GALVANOMETER B) a momentary deflection in the GALVONOMETER |
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| 16. |
What causes the greenhouse effect? What’s missing?! The Sun’s energy reaches the Earth and is ……………………. by the surface The energy is emitted as …………………. (heat) radiation ………...… ………….. and carbon dioxide are naturally occurring greenhouse gases Infrared radiation is ……………….. by greenhouse gases in the atmosphere. |
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Answer» The greenhouse effect is caused by the atmospheric ACCUMULATION of gases such as carbon dioxide and methane, which contain some of the heat emitted from Earth's SURFACE. ... This RADIATION, UNLIKE visible light, tends to be absorbed by the greenhouse gases in the atmosphere, raising its TEMPERATURE |
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| 17. |
A spherical shell of charge density rogh in the region ofa≥r≤b the magnitude of electric field given that rogh=kr |
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Answer» I don't knowExplanation:I am very LITTLE GIRL SORRY U can SEARCH in other |
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| 18. |
6. State universal law of gravitation. What is the value of G. Why it is called universal gravitation constant. if u give correct answer I will mark it as brainliest |
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Answer» G is CALLED the universal GRAVITATIONAL CONSTANT since it has a constant VALUE all throughout the Universe.Explanation:sana MAKA tulong |
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| 19. |
Explain the basic principles of launging a satalite. |
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Answer» The fundamental principle to be understood concerning satellites is that a SATELLITE is a projectile. That is to say, a satellite is an object UPON which the only force is gravity. Once LAUNCHED into ORBIT, the only force governing the motion of a satellite is the force of gravity..Explanation:hope it is helpful for yougood Evening Dearhave a NICE day |
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| 20. |
An object 6cm high is placed at a distance of 18cm from a convex lens of focal length 6cm. Find position of the image and the height of the image. |
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Answer» How does expert SYSTEM helps in ————-Static games like chess —-To check POLLUTION in rivers or other water bodiessorry I REALLY don't know the answer |
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| 21. |
What conclusion we can draw from the covalent compounds |
| Answer» TION:I HOPE my ANSWER is USEFUL to you | |
| 22. |
A resistance of 10ohm is connected in series with two resistance each of 15ohm arranged in parallel what resistance must be shunted across this parallel combination so that the total current taken is 1.5A with 20V applied |
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Answer» kalua ADAM, maximExplanation:kalua adam ;__kalua adam is very KAL and goramaxim dadu;__maxim is a dada he is DANCING beru NICE |
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| 23. |
What would happen to the Earth’s water if there wasn’t an atmosphere? What is this overall effect called? |
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| 24. |
· A sound wave has frequency of 2 kHz and wavelength of 35 cm. If an observer is1.4 km away from the source. At whattime interval could the observer hear thesound?(a) 2s (b) 20 (c) 0.55 (d) 45 |
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Answer» It will TAKE 2 second to travel 1.5 km.Explanation:Given,Frequency = f = 2kHz = 2000 HzWavelength = λ = 35 cm = 35 / 100 MTO find: How long will it take to travel 1.5 kmSolution:Concept: WAVE SPEED is defined as the product of wavelength and frequency.i.e v = λfhere, λ = 35/100 m and f = 2000 HzSubstituting the values,v = 35/100* 2000 = 700 m /sSo, Speed of SOUND wave is 700 m/sThen, Time taken to travel the distance of 1.4 km = 1400 m will be:Time taken = distance travelled / wave velocityor, t = 1400 / 700 = 2 secondsTherefore, it will take 2 second to travel 1.5 km. |
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| 25. |
A) A hoist is accelerated uniformly from rest at an acceleration of 3 m/s2 to reach a speed of 7.4 m/s and is then retarded uniformly to rest. The distance travelled during acceleration is twice that travelled during retardation. Sketch the velocity time graph and determine: (i) total time taken (ii) the total distance travelled. |
| Answer» ANSWER10 2Y =25⟹10 y =5∴10 −y = 51 | |
| 26. |
Fa) Wavelength 5. A person rings a metallic bell near asconcrete wall. He hears the echo after0.3 s. If the sound moves with a speed340 m/s. The wall is far from him?(c) Frequency(a) 102 m(b) 11 m(c) 51 mes are similar to th(d) 3 |
| Answer» C ) 51 m ANSWER of this QUESTION | |
| 27. |
A Gas equation is given by (P + 2 /2) (u-b) = nRTP Pressure, VA Volume, na moles, Ry gas constTy temp.Find the dimensional formula of a |
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Answer» a and b are van DER WAAL's constant so they have no DIMENSIONAL FORMULA |
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| 28. |
Please tell the reaction of casting soda? |
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Answer» During this process, it generates hydrogen, which has the potential to behave as an explosive gas. ・It is highly hygroscopic, and absorbs the moisture, CARBON dioxide, or sulfur dioxide in the air. It is also highly deliquescent and absorbs moisture to FORM an aqueous SOLUTION. |
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| 29. |
What is thrombokinase? Don't copy paste. |
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Answer» Thromboplastin (TPL) or thrombokinase is a MIXTURE of both phospholipids and tissue factor found in plasma aiding blood coagulation through catalyzing the CONVERSION of prothrombin to thrombin. ... When manipulated in the laboratory, a derivative could be created called partial thromboplastin..EXPLANATION:Hope it is helpful for yougood Evening Dearhave a NICE day |
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| 30. |
. A student has three resistances R1 = 3Ω, R2 = 6Ω and an unknown resistance R3. She made a circuit out of these three, which is shown below. The current she obtained in the entire circuit was found by her to be 5A. Calculate the unknown resistance R3. |
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| 31. |
If we take an object to 20m. Height from the surface earth,what will be the value of potential energy of that object. |
| Answer» HEIGHT of the BODY from the ground = 20mTo Find :Value of POTENTIAL energy of the object.Solution :❖ Potential energy the energy which is possessed by a body by VIRTUE of its position.It is a scalar quantity having only magnitude.SI unit : JSI unit : [M¹L²T‾²]Value of potential energy at the reference point is taken zeroHere potential energy of body at ground is zero.» Potential energy of body of mass m at a height h from the ground is given by, U = m g hwhere g denotes gravitational accelerationLet mass of the body be m.By substituting the given values;➙ U = m g h➙ U = m × 10 × 20➙ U = 200 m Joule | |
| 32. |
If u are given two samples,how do you distinguish which one is metal and which is non metal? |
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Answer» Answer. Answer: TRY to POLISH the sample if one of the sample started to SHINE it is a metal and other is non-metal. It is because of the fact that metals are LUSTROUS in nature whereas non-metal aren't lustrous.Explanation:hope it helps you ❣️ |
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| 33. |
Introduction of android barometer?? at least for half page. |
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Answer» eter is a scientific instrument that is used to measure air pressure in a CERTAIN environment. Pressure tendency can forecast short term changes in the weather. Many measurements of air pressure are used within surface weather analysis to help find surface TROUGHS, pressure systems and FRONTAL boundaries.Barometers and pressure altimeters (the most basic and common type of altimeter) are essentially the same instrument, but used for DIFFERENT PURPOSES. An altimeter is intended to be used at different levels matching the corresponding atmospheric pressure to the altitude, while a barometer is kept at the same level and measures subtle pressure changes caused by weather and elements of weather. The average atmospheric pressure on the earth's surface varies between 940 and 1040 hPa (mbar). The average atmospheric pressure at sea level is 1013 hPa (mbar).I hope this will help you |
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| 34. |
Write a condition for resultant is 2v is zero 3v is zero NV is zero |
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Answer» Solution :(i) When THREE vectors are not lying in one plance, they can BOT produce zero resultant. (ii) When three vectors are lying in a place and are REPRESENTED in MAGNITUDE and direction by the three sides of a triangle TAKEN in the same order, they can prokuce zero resultant.Explanation: followmee |
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| 35. |
Which tricks do you use to reduce force and pressure in everyday activities |
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Answer» to reduce FORCE we will apply force from OPPOSITE DIRECTION so that the net effect of the force get cancelledand to reduce the pressure we will increase the area(If you FIND this answer helpful give me HEART) |
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| 37. |
How does the atmosphere regulate temperature? What does the atmosphere provide a shield against? What might happen if this shield wasn’t there? What would happen to the Earth’s water if there wasn’t an atmosphere? What is this overall effect called? |
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Answer» Atmosphere regulates the average temperature on the earth. ... Various GREENHOUSE gases like methane, carbon dioxide, WATER vapour and ozone responsible for protecting the earth atmosphereNitrogen, oxygen and ozone molecules in the upper atmosphere and stratosphere absorb ultraviolet light from the Sun, providing a shield that prevents this radiation from passing to the Earth's surface.All unprotected plant and animal life on the Earth's surface WOULD die. We can't survive long in a VACUUM, which is what we'd have if the atmosphere suddenly vanished. It would be much like being "spaced' or shot out of an airlock, except the initial temperature would be higher. Eardrums would popThe temperature of the Earth would rapidly start to rise once our atmosphere had disappeared. Without our atmosphere we have little protection from the Sun's HEAT. It would penetrate to the Earth's surface and cause the water to start boiling off into steam that would float off into space. |
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| 38. |
Plz solve it quickly..it's urgentno spamming |
| Answer» 11) option c is the answer12) 0°13) 0 = 90° option B14) 0 = 90° option b15) | |
| 39. |
Explain E= {mc}^{2} & how it is related to mass & energy. Long answer is required.Pls help me the "brainys" |
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Answer» n be converted into pure ENERGY.This is the SECOND meaning of the equation, where E = mc2 TELLS us exactly how much energy you get from CONVERTING mass. ... The amount of mass you destroy becomes energy, and the amount of energy you get is given by E = mc2. |
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| 40. |
State and explain super position principal |
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Answer» The superposition principle, also known as superposition property, states that, for all LINEAR SYSTEMS, the net RESPONSE caused by two or more stimuli is the SUM of the responses that would have been caused by each stimulus individually. |
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| 41. |
Is human body a metal or non-metal?I want the reason with explanation |
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Answer» Human being is not an ELEMENT to be considered metallic or non metallic. Most of the element present within human BODY are non metallic EXAMPLE: carbon, HYDROGEN, nitrogen, oxygen, phosphorus, and sulfur. |
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| 42. |
explain velocity time graph of a object (a) moving with zero acceleration (b) moving with constant positive acceleration |
| Answer» ACCORDING to VELOCITY time graph , acceleration is NOTHING but slope of velocity(v)(v)-time(t)(t) graph and slope shows change in one variable with respect to other.Now the condition you have given as a body is MOVING with constant acceleration; it means either body has ZERO acceleration or any constant value. | |
| 43. |
How reflection take place in plane mirror |
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Answer» A PLANE mirror is a mirror with a flat (PLANAR) REFLECTIVE surface. For light rays striking a plane mirror, the angle of reflection equals the angle of INCIDENCE. ... Plane mirrors are the only type of mirror for which a real object ALWAYS produces an image that is virtual, erect and of the same size as the object.Explanation: |
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| 44. |
A Velocity ofstraightaparticle moving abnglineis given byс CV =A + B +²+B+D+3where 'tis time. Find dimensional formulaof A, B, CRO. |
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Answer» tion:100 points on subscribing. Pls Watch,subscribe,LIKE,share,Comment and press the bell icon NAME Of CHANNEL : #LEGENDARY PHANTOM. |
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| 45. |
A girl lifts an object of mass 1.5 kg from her table which is 0.6 m high to the top of the wardrobe which is 3.5 m high. Calculate the potential energy of an object relative to table.Select one:A 87.69JB. 51.45 JC.42.63 JD. 8.82 J |
| Answer» PE = mghM=1.5G= 9.8H=2.9C. 42.63 J | |
| 46. |
A pendulum is times, first 20 swings then 50 swings: time for 20 swings: 17.4 s time for 50 swings: 43.2 s calculate the average time per swing in each case. The answers are slightly different. Can you suggest any experimental reasons for this? |
| Answer» PLEASE MARK as BRAINLIEST | |
| 47. |
If 140 N of force is required to keep an object sliding at constant speed of 5 m/s across a table, calculate the power required to maintain this motion.aSelect one:A. 500 WO B. 700 WC. 28 WD. 200 W |
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| 48. |
What are transport phenomena? |
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Answer» rt phenomenon, in physics, any of the phenomena involving the movement of various entities, such as mass, momentum, or energy, through a medium, FLUID or solid, by VIRTUE of nonuniform CONDITIONS EXISTING within the medium. |
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| 49. |
A rigid body of mass 4g moving in the XY plane cross the X-axis at point P which is 0.5m apart from the origin at a certain time. If at point P, the rigid body tends to move with linear speed 15m/s along a line making angle 30 degreewith the X-axis, what must be the Z-component of the angular momentum about the origin?Select one:A. 0.6 kg-m/sB. 1.2 kg-m/sC. 0.015 kg-mº/sD.0.03 kg-m/s |
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Answer» a is the ANSWER EXPLANATION:and it is graff depond |
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| 50. |
A boy weighs 480 N walks down a staircase which is 4.3 m below his start point. Calculate the change in boy's potential energySelect oneA 2064JB. +2064JC. +206.4JD. 2064J |
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Answer» tion:100 points on subscribing. Pls WATCH,subscribe,like,share,COMMENT and PRESS the bell icon NAME Of Channel : #LEGENDARY PHANTOM. |
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