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. |
Three masses of 2 kg, 4 kg and 3 kg are attached with light strings over massless pulley as shown in figure. The pulley itself is attached to a light spring balance. When masses start moving,the reading of the spring balance will be (2) Less than 9 kg (1) Equal to 9 kg (4) Zero (3) More than 9 kg |
| Answer» TION:(2) LESS than 9 kgMark as BRAINLIST | |
| 2. |
A stone is thrown vertically upwards with an initial velocity of 40 m/s. Draw the velocity- time graph of the motion of stone till it comes back on the ground. Use graph to find the maximum height reached by the stone. What is the net displacement and total distance covered by the stone. Take g= 10 m/s2. #Quality Answer |
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Answer» Here your ANSWERPLEASE MARK BRAINLIEST |
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| 3. |
Why does it take some time to see object in a dim room when you enter the room from bright sunshine outside? |
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Answer» our eyes have just come FORM bright sunshine which is brighter then the LIGHT in the DIM ROOM |
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| 4. |
Why a person hit harder he falls on a hard surface than on a smooth surface? |
| Answer» HARDER because hard SURFACE can be rocky and wrecked and smooth surface can be ready PLANE how you LIKE my answer | |
| 5. |
Derivation of magnetic field due to solenoid ampere circuital law |
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Answer» is is your ANSWER. |
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| 6. |
Raul connected an electrical press, TV, Home Theatre and Tata Sky box to a extension cord box which contains 4 sockets.He connected the extension cord socket to a 5 ampere rating plug and switched ON all the appliances. (a). What do you thing Rahul will observe. (b). What will be the possible reason behind the observation |
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| 7. |
Two conductor wires x and y of same diameter but different materials are joined in series across a battery .If the no. Of density of electron in x is twice that in y then find the ratio of drieft velocity in wires |
| Answer» KNOW and I didn't UNDERSTAND the QUESTION | |
| 8. |
Two conductor are made of the same material and have same length conductor is solid wire of diameter 1 mm conductor b is a hollow tube of of the diameter to mm and inner diameter 1 mm find the ratio of resistance r a to b |
| Answer» ANSWER RIGHT | |
| 9. |
Why are people told to stand away from fast moving train? |
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Answer» your answer :When TRAIN moves with high speed it creates region of LOWER PRESSURE and this lower pressure PUSH the man towards the train |
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| 10. |
an effort of 50 kgf is applied at the end of a lever of the second order with supports a load of 750 kgf. Find the mechanical advantage |
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Answer» d/Effort= 750/50= 15 |
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| 11. |
Why amplitude modulation is used for broadcasting radio signals? |
| Answer» DE modulation is required in order to TRANSFER signals over long distances. To achieve this, a high frequency wave/carrier wave CARRIES the SIGNAL to the receiving antenna of the destination. These waves are of high amplitude and high energy | |
| 13. |
Current and voltage distribution along the length of wier anntena |
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Answer» current & voltage. The current and voltage on any radiating ELEMENT vary ALONG its length, and this is true for the dipole as WELL as for any other antenna. The current variation occurs because standing waves are SET up along the length of the radiating element. |
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| 14. |
In a black hole, is time unstable ? |
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Answer» rnd...*_*Details of the structure of a black hole are calculated from Albert Einstein’sgeneral theory of relativity. The singularity constitutes the centre of a black hole and is hidden by the object’s “surface,” the EVENT horizon. Inside the event horizon the escape velocity (i.e., the velocity required for matter to escape from the gravitational field of a cosmic object) exceeds the speed of light, so that not even rays of light can escape into space. The radius of the event horizon is called the Schwarzschild radius, after the German astronomer Karl Schwarzschild, who in 1916 predicted the existence of COLLAPSED stellar bodies that emit no radiation. The SIZE of the Schwarzschild radius is proportional to the mass of the collapsing star. For a black hole with a mass 10 times as great as that of the Sun, the radius would be 30 km (18.6 miles).Black holes cannot be observed directly on account of both their small size and the fact that they emit no light. They can be “observed,” however, by the effects of their enormous gravitational fields on NEARBY matter. For example, if a black hole is a member of a binary starsystem, matter flowing into it from its companion becomes intensely heated and then radiates X-rays copiously before entering the event horizon of the black hole and disappearing forever. One of the component stars of the binary X-ray SYSTEM Cygnus X-1 is a black hole. Discovered in 1971 in the constellation Cygnus, this binary consists of a blue supergiant and an invisible companion 8.7 times the mass of the Sun that revolve about one another in a period of 5.6 days.hope its help U...my frnd |
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| 15. |
3. What are Superman’s x and y components? |
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Answer» an net ,and STICKING magicthanks for ASKING YO[ MR= BRAHMAN ]~... |
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| 16. |
Which type of nuclear process is currently used in nuclear electricity generators. Give one example for the substances used as a)coolants b.Moderators c.Nuclear fuel? |
| Answer» LY, the vast majority ofelectricity from nuclear power is produced by nuclear fission of uranium and PLUTONIUM. Nucleardecay processes are USED in applications such as radioisotope thermoelectricgenerators.if HELPFUL mark as BRANLIEST | |
| 18. |
there are two bodies of masses 4kg and 5 kg which are 2 meters apart from each other. determine force of attraction between two bodies |
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| 19. |
State and explain brewester law of polarization.obtan an express for walength of an electron |
| Answer» E this is your ANSWER. Hope it HELPS. PLZ plz mark it as brainliast. | |
| 20. |
Kicking of football is which motoin |
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Answer» your answer.kicking of football is 2nd law of motion.as 2nd law of motion deals with The acceleration of an object as produced by a net FORCE is directly proportional to the magnitude of the net force, in the same direction as the net force, and INVERSELY proportional to the MASS of the object.Formula F = ma hope it will HELP you MATE. |
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| 21. |
What will be the density of lead under a pressure of? |
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Answer» e your answer is here What will be the density of lead under a PRESSURE of 2 x 108Nm-2?Given ,NORMAL density of lead =11.4gcm-3and bulk MODULUS of lead =8.0 x 109Nm-2 PLEASE REPLY soon !!!!!!!!!!!!? |
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| 22. |
A bullet of mass 0.03kg travelling with speed of 400m/s penetrates 12cm into a fixed block of wood. calculate the average force exerted by the wood on the bullet |
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Answer» the BULLET (m) = 0.03 kgInitial velocity of the bullet (u) = 400 m/sFinal velocity of the bullet (V) = 0 m/sDistance travelled by the bullet = 12 CM = 0.12 mForce (F) = ?Force is given by,F = ma ................(1)v = u + at ................(2)Putting the given values in eq(2) we get,0 = 400 + a×0.0003a = - 1.3 × 10^6 m/sec^2From eq(1),F = 0.03 KG × 1.3 × 106 m/sec^2F = 39 × 10^3 N = 39000 N |
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| 24. |
Which instrument is used to measure temperature above 300° c? |
| Answer» ER is USED to MEASURE TEMP above 300°C | |
| 25. |
Working of an AC generator ? |
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Answer» f an AC Electric GeneratorInsulated Copper wire: A rectangular rotating COIL of wire ABCDMagnet Poles: A MAGNET as placed above ie North Pole and South Pole. This creates a magnetic field as shown above. The rectangular coil is placed between these magnetsSplit Rings: Two disjoint C-shaped rings R1 and R2 are internally attached to the Axle.. Ends of the coil are connected to R1 and R2. The inner portion of these rins are made of non-conducting materialAxle: The split rings are placed on the axle which is made to rotate freely from an external source.Brushes: The outside of the split rings are connected to conducting brushes B1 and B2. B1 and B2 is kept pressed on R1 and R2 respectively.Galvanometer : To measure current. The outer ends of the brushes are connected to the galvanometer to measure the currentWorkingThe axle is rotated such that it moves in the clockwise directions that is AB moves up and CD moves down.According to Fleming's Right Hand rule, the induced current is SETUP in the coil along B1-> AB -> BC -> CD -> B2. This means that the external current flows from B2 to B1.After half a rotation, arm CD STARTS moves up and AB moves down.According to Fleming's Right Hand rule, the induced current is setup in the coil along B2-> AB -> BC -> CD -> B1. This means that the external current flows from B1 to B2.Thus after every half rotation of the coil, the current changes direction. This is called an AC current.AC current(Alternating current) : Changes its direction after equal intervals of time. It is easier to transmit this current over long DISTANCES due to lesser loses and hence this is the current that is supplied to our houses from the electricity department. |
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| 26. |
A photon and an electron have the same de-broglie wavelength, which one has higher total energy? |
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Answer» high momentum (shortwavelength) the total energy will be dominated by the KINETIC energy of the PARTICLE. Again, SINCE KE at a given momentum is inversely proportional to MASS then theelectron will have the greater total energy. ... A photon and electron has the same DE Broglie wavefront. |
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| 27. |
What is space time relativity? |
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Answer» , Albert Einstein DETERMINED that the laws of PHYSICS are the same for all non accelerating observers and the speed of light in vacuum was INDEPENDENT of the MOTION of all observers. This was the theory of special relativity. It introduced a new framework for all the physics and proposed new concepts of space and TIME. Einstein then spent 10 years trying to include accelerationin the theory and published his theory of general relativity in 1915.Hope this helps you✌️✌️ |
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| 28. |
What is the denpendancy of RESISTIVITY OR SPECIFIC RESISTANCE ? A N S W E R. C A R E F U L L Y |
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Answer» erhere is ur answerthe denpendancy of RESISTIVITY OR SPECIFIC RESISTANCE ison the MATERIAL of the OBJECT |
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| 29. |
Any 2 types of lens ? |
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Answer» and CONVEX lensthat is CONVERGING LENS and diverginglens |
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| 30. |
Ravi wants to know the measu ring of water what will you tell them |
| Answer» N measure the quantity of WATER by the unit LIKE litre or MILLI litre.I hope u needed this MATE. | |
| 31. |
Stoping a speeding bullet is difficult because it has a low velocity |
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Answer» erstopping a SPEEDING BULLET is DIFFICULT because it has a very HIGH VELOCITY.... |
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| 32. |
What is the cloverfeild paradox |
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Answer» verfield Paradox is a 2018 American science fiction horror film directed by Julius Onah, written by OREN Uziel and Doug Jung, and produced by J. J. Abrams's Bad Robot Productions. It is the third installment in the Cloverfield franchise, following Cloverfield ( 2008) and 10 Cloverfield Lane (2016). The film stars Daniel Brühl, Elizabeth Debicki, Aksel Hennie, GUGU Mbatha-Raw, Chris O'Dowd, John Ortiz, David Oyelowo and Zhang Ziyi, It follows an international group of astronauts aboard a space station who, after using a particle accelerator to try to solve Earth's energy CRISIS, must find a way home after accidentally traveling to an alternate dimension.Hope this helps you dude ☺️☺️✌️✌️⭐⭐ |
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| 33. |
An ammeter ranges 0-3A there are total 30 divisions. Determine least count??? |
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| 34. |
The Fisher Family There are six people in the Fisher family. Olivia and Marcus are the parents. They have four children, Violet, Nathan, Jonas, and Claudia. Neither Olivia nor Marcus have freckles. What is Olivia's genotype? What is Marcus' genotype? How many children have freckles? Both Marcus and Olivia are heterozygous for the hairline trait. How many of their children have a Widow's peak? How many have a straight hairline? How many children are homozygous dominant for the trait? Neither Marcus nor Olivia can roll their tongues. How many of their children can roll their tongues? How many cannot? What is Violet's genotype? All four children have dimples. If Marcus is a hybrid, what is Olivia's genotype? Does she have dimples? Both Olivia and Marcus are EE for the earlobe trait. What is the ratio of free earlobes to attached earlobes? What percentage of the children are homozygous? Marcus's genotype for eye color is bb. Olivia has brown eyes, but she is heterozygous for the trait. What percentage of the children have blue eyes? If Violet has green eyes and Jonas has brown eyes, what is Claudia's genotype? How many people in the family have blue eyes? |
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Answer» ng no freckles is recessive, so two copies of the ALLELE are REQUIRED, therefore both PARENTS are ff, and each can only produce a single gamete f, so all the CHILDREN will be ff and like their parents have no freckles. You can now solve exactly the same problem for tongue rolling, as not being able to roll the tongue is recessive. You can also, solve the EAR lobes problem as you know that both parents are homozygous for free earlobes and this is dominant. 2. Hairline, both are heterozygous - a widow's peak is dominant W, straight is recessive w, both have widow's peak and genotype Ww If you cross Ww x Ww each parent can produce 2 gametes, W or w and children could be WW, Ww, wW or ww. The last will have a straight hair line. 3. Dimples. Having dimples is dominant. Dad is a hybrid, so Dd. All of the children has dimples so none is dd. Therefore mum has not passed on a d allele to her children and so her genotype is DD. DD x Dd mum produces only D gametes, dad D and d, so children are either DD or Dd. 4. Tasting. Dad is bb recessive, as a heterozygote mum is a non-taster, non tasting is dominant. So bb x Bb. Dad produces only b gametes and mum either B or b, so children are either Bb or bb. Those are all of the crosses and the outcomes, so you should be able to answer all of the questions now. |
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| 35. |
DERIVE JUNE'S LAW OF HEATING |
| Answer» OBSERVED spectrum by assuming that a hypothetical electrically charged oscillator in a cavity that contained black body radiation could only change its energy in a minimal INCREMENT, E, that was PROPORTIONAL to the FREQUENCY of its ASSOCIATED electromagnetic ... | |
| 36. |
When a body fall from a hight thenext work wiLloyd be done in the form of what |
| Answer» FORM of KINETIC ENERGY. | |
| 37. |
What is the relationship between luminosity and temperature? |
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Answer» ity is the total energy that a star produces in ONE second it depend on both radius of the star temperature.thus,the LUMINOSITY of a star WOULD increase if one surface temperature T. with dominating FACTOR MAY it's helps u |
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| 38. |
Consider a cylindrical shape furnace with r= h= 2m . The base,top and side surface of the furnace |
| Answer» TE the QUESTION PROPERLY | |
| 39. |
What is the mass and radius of the following: a. earthb. sunc. moon |
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Answer» earth is 5.972× 10^24 kgradius of earth is 6,371 kmmass of SUN is 1.989 × 10^30 kgradius of Sun is 695, 508 kmmass of moon is 7.35× 10^22 kgradius of moon is 1,079.6 MILES |
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| 40. |
light Falls from glass to air find the angle of incidence for which the angle of deviation is 90 degree if refractive index of Glass is root 2 |
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| 41. |
A man throws a mass of 2 kg vertically upward with a velocity of 20 m/sec . What is the potential energy of the mass after 1 sec ? |
| Answer» SECT it will at ut-1/2at2=20-10=10mtherefore POTENTIAL energy=mgh=2×10×10=200j | |
| 42. |
at what height below the surface if the earth accerleration due to gravity becomes half the value at the surface of the earth ? |
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Answer» THE ANSWERHOPE YOU LIKE IT |
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| 43. |
Draw the ray diagram for the convex lens when the object is placed between centre of curvature and focus |
| Answer» TRE of CURVATURE in a LENS is 2F. | |
| 45. |
What is the maximum pressure needed to brake the vehicle? |
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Answer» service BRAKES (the ones used while driving for slowing or stopping) to be applied, the BRAKE pedal is pushed, ROUTING the air under pressure (approx 100–120 psi or 690–830 KPA or 6.89–8.27 bar) to the brake chamber, causing the brake to be ENGAGED |
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| 46. |
the mean of 5 observations is 20 including one new observation the mean is 25 find the newly included observation |
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Answer» ate ✋,There your answer is ______,✏ n of EARLIER OBSERVATION = 5×20 = 1000 n of NEW observations = 6×25 = 150Therefore newly INCLUDED observation = 1000-150=850Min_Fadlak_Mate...✌❤Hope it may helps u...☺❤ |
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| 47. |
a force of 20Newton acts on a stationary particle of mass 0.5kg determine the acceleration of the particle |
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| 48. |
Tell me the answer for the bits |
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Answer» poration15-53c16- NITROGEN |
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| 49. |
_____is used to measure electric resistance in a circuit |
| Answer» ER is an instrument used for measuring electrical POTENTIAL DIFFERENCE between two points in an ELECTRIC circuit. An ammeter is a measuring device used to measure the electric CURRENT in a circuit. | |
| 50. |
HEY GUYS!!❤❤can u explain the thursday paradox??? pls its important! |
| Answer» OX ALSO known as surprise examination paradox or prediction paradox. a prisoner is told that he will be HANGED some day between Monday and Friday but he will not known on which day the hanging will occur before it happens | |