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. |
Is there any simple way to understand the all logic gates????? |
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| 2. |
Mass of an object is 10kg.What is its mass on moon? |
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Answer» Answer: So a 10KG object weighs about 98N on the Earthand about 16N on the Moon. That is the trick: realising that there is a difference between MASS and weight when we are used to unconsciously swapping the TWO. |
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| 5. |
The combined resistance of two identical resistors connected in series is 8 ohm their combined resistance in a parallel arrangement will beA: 2 ohmB: 4 ohmC: 8 ohm D: 12 ohm |
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Answer» RESISTANCE will be 2 OHM |
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| 6. |
explain why A Ray of light passing through the centre of curvature of concave mirror gets reflected along the Same path |
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Answer» Answer: A RAY of light passing through the centre of curvature of a CONCAVE mirrorretraces its path (gets reflected along the same path), because as the ray of light PASSES through centre of curvature of aconcave MIRROR it strikes the mirror along the normal i.e. it incidences on to the mirror at 90 degree. |
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| 7. |
When the current is switched on through a wire a compass needle kept nearby gets deflected from its north south position. Give reasons |
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Answer» Answer: magnetic field Explanation: The CURRENT PRODUCES magnetic field.And the direction of magnetic field is from NORTH to SOUTH. That's why the needle of the COMPASS is deflected from north to south. |
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| 8. |
What are Logic Gates??? whant a precise definition,, |
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Answer» Answer: In ELECTRONICS, a LOGIC gate is an idealized or physical device implementing a Boolean function; that is, it performs a logical operation on one or more BINARY inputs and produces a single binary output. |
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| 10. |
Difference between analogue and digital electronic s |
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Answer» Answer: The DIFFERENCE between Analog Electronics and Digital Electronics is : Analog Electronics deals with Analog Signal which is a continuous signal , means it varies CONTINUOUSLY with TIME. Most of the signals in nature are of analog in nature. Digital Electronics deals with digital signal which is DISCRETE signal. |
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| 12. |
State 2 propertes of magnetic lines of force |
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Answer» Explanation: 1.Magnetic field lines starts from north pole and ends at south pole. 2.Magnetic field lines do not intersect each other |
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| 13. |
Plz give short answer of these |
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Answer» GENERAL use of OXYGEN it HELP US to breath. it also helps in COMBUSION |
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| 14. |
write the name of the first person who invented the deflection of compass needle when current was passed through the wire |
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| 16. |
Calculate the value of acceleration due to gravity g using relation between g and G |
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Answer» THE ANSWER IS IN THE ATTACHMENT |
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| 17. |
Distinguish between elastic and inelastic collisions |
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Answer» Answer: In an ELASTIC collision, the MOMENTUM and total kinetic energy before and after the collision is the same. ... In an INELASTIC collision, the energy changes into other ENERGIES such as SOUND energy or thermal energy. In an inelastic collision, the energy is not conserved. |
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| 18. |
A spring block system is horizontal oscillation has time period T . Now the spring cut into four equal parts and the block is reconnected with one of the parts . the new time period of vertical oscillation will be1)T÷√22)2T3)T÷24)T÷2√2 |
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Answer» The NEW time period of oscillation will be Hence option (3) T/2 is correct. Explanation: For a GIVEN spring BLOCK system, Let the spring has spring constant 'K' and block has mass 'm' , then its Time period of oscillation is given by
T = 2π Concept : If a spring having spring constant 'K' is cut into 'n' equal parts, then spring constant of each part is given by 'nK' . In this question spring is cut into FOUR equal parts, then spring constant of each part will be '4K'. and when block is attached to one of the part, its new Time period of oscillation will be Note : Time period of oscillation of a spring block system is same for horizontal and vertical configuration. Know More : Q.1- Find the time Period of the given spring block system. Click Here - brainly.in/question/13908244 Q.2- Find the time period of the spring block system. see in attachment Click Here - brainly.in/question/14017362 Q.3- A block oscillates with time period t with a spring .The spring is cut into three equal parts and then the same block is made to oscillate with parallel COMBINATION of the three spring parts .The new period of oscillation is Click Here - brainly.in/question/7259880 |
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| 19. |
How the value of g change with the increase of depth |
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Answer» Answer: As the DEPTH increases the mass of the earth decreses. ... At the SURFACE of the earth this value will be maximum because R will be max. When R becomes less ( i.e when depth increases) this value also decreases. Hence, acceleration due to GRAVITY decreases with INCREASE in depth. yal dhatt |
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| 20. |
Can any body give me physics and chemistry paper ..plz |
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| 21. |
Explain the functions od drushes in simple way |
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Answer» A brush is a device which conducts current between STATIONARY wires and moving parts, most commonly in a rotating shaft. TYPICAL applications include electricmotors, alternators and electric generators. 1. Brushes are USED to CONDUCT current in the electric generator, be it either AC generator or DC generator |
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| 22. |
An uranium 92U235 fission reaction produces 216Mev .the amount of uranium required to run a 100Mw nuclear power plant for a day with 100%efficiency is. |
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Answer» If a URANIUM 92U235 FISSION reaction produces 216MeV, the amount of uranium required to run a 100MW nuclear power plant for a day with 100% efficiency is given as- 1. Let 92U235 be represented by U. 2. We know that, 1eV= 8.89*10^-9 Wsec => 216MeV = 216*10^6eV = 216*10^6 * 8.89*10^-9 Wsec= 1.94Wsec 3. For 1 day, the energy produced by one reaction would be 1.94/86400 = 2.24418*10^-5 4. Thus the amount of U required to run the 100MW = 10*8W plant = 2.24418*10^-5/10*8 = 4.45597*10^12. |
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| 23. |
A ray of light incedent on a plane mirror gets reflected and form an angle of 90° with the incedent ray. What is the Angle of Incedence and the Angle of Reflection? |
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Answer» Answer: the ANGLE of INCIDENCE is 90 DEGREE Explanation: the angle of the REFLECTION is also 90 degree because when LIGHT falls on a plane mirror it reflects in the same direction |
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| 24. |
How the value of g change with the altitude |
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Answer» Answer: Gravity CHANGES with altitude. The gravitational FORCE is PROPORTIONAL to 1/R2, where R is your distance from the CENTER of the EARTH. Here is an example: The radius of the Earth at the equator is 6400 kilometers. Let's say you were in a jet at the equator that was 40 kilometers high above the earth's surface. |
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| 25. |
Example of virtual image |
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Answer» VIRTUAL IMAGE is an image which is inverted Virtual IMAGES formed when to RAYS of LIGHT appear to meet For example image formed on a cinema and television screen |
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| 26. |
How many molecules will be in air |
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Answer» Explanation: If we take air to be a mixture of about FOUR MOLECULES of nitrogen to one of oxygen, the mass of 1 mole of air will be about 28.8 grams. One mole of any substance contains about 6 × 1023 molecules. So there are about 1.04 × 1044 molecules in the EARTH's ATMOSPHERE. |
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| 27. |
Apan ko physics ka question paper mangta h apan 12th mein h CBSE |
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Answer» Answer: Explanation: plz MARK it as BRAINLIEST. And do follow me...✌✌✌ |
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| 28. |
What is meant by power of lens? |
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Answer» Answer: POWER of a LENS is the ability of a lens to either CONVERGE or DIVERGE a beam of rays incident on it. |
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| 29. |
a force f equal to a y square + B Y + c acts on a body in the Y direction the work done by the force during the displacement from y = - a to y=a to a is |
| Answer» HOPE this ONE SATISFIES your QUESTION. | |
| 31. |
What is the polarity of the face of the loop you are looking at? |
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| 32. |
Write reasons for excessive current in electric current..... |
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Answer» Answer: (2)less resistance (3) Most DEVICES connected at same point PLEASE MARK IT AS BRAINLIEST ☺☺☺ |
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| 33. |
CLASS 12THWhich one is the Property of Plane Polarised Light ;A- travel in straight lineB - conduct electricity |
| Answer» ANSWER is : TRAVEL in STRAIGHT LINE | |
| 35. |
If a current in a wire is placed perpendicular to a magnetic field increases the force on the wire. 1:Increase. 2: decrease. 3:remains the same |
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Answer» Explanation: |
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| 37. |
Why are media considered important in a democracy ???? |
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Answer» The ability to comprehend and scrutinize the CONNECTION between press and DEMOCRACY is IMPORTANT because media has the power to tell a society's STORIES and thereby influence thinking, beliefs and BEHAVIOUR #KOREA❤✌ |
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| 38. |
(ii) Liquids are practically incompressible. state true or false |
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| 39. |
Please give me the solution of this question |
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Answer» v=51330m/sec f=580Hz |
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| 40. |
Explain the principal involved and working of an electric generator by drawing a labled diagram |
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Answer» Answer: The electric generator convert MECHANICAL energy into electrical energy. ... In an electric generator a RECTANGULAR coil is MADE to rotate rapidly in the magnetic field between the poles of a horseshoe type magnet. When the coil rotates it cut the magnetic field lines due to which CURRENT is produced in the coil . |
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| 41. |
Draw the diagram of torch neatly and well labelled |
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| 42. |
What is this 'u' like indication, in physics, called?what does it stands for?and how to write it?plz show how write it in attachment......do answer only if u know....20 POINTS QUESTION |
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Answer» it is frequency. it is READ as nu. it is WRITTEN just like 'v'. |
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| 43. |
Calculate the number of electrons in 10 microculumbs |
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Answer» 0.01 is answer of your QUESTION |
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| 44. |
Give atleast 10 difference between Intrinsic s.cN+type (P.I).P type (TI).. |
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Answer» What is this ? |
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| 45. |
What are CFLS and LEDS?which saves more energy |
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Answer» LED STANDS for light imiting diode CFL Stands for compact FLUROCENT lamp more energy saving is led |
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| 46. |
If a news is broadcast from London at 1:45 p.m. onMonday, at what time and on what day it will beheard at Dhaka (90° E)? |
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| 47. |
Advertisement also affects our morals and values negatively . explain !!!! |
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Answer» Answer: The Indian community in other countries is admired for its success. Our civilizational achievements underscore our capabilities. YET, India lags far behind the developed world on various parameters of success. Our conduct in private and public spaces leaves much to be desired. Why do we have so many corrupt politicians and intelligent PEOPLE defending them? Why do our business organizations commonly follow immoral practices? I believe an explanation lies in our way of thinking, moulded by our experience as a society. Based on ancient TEXTS that form part of the basis of Indian civilization, moral clarity ought to be our strength. Who hasn’t heard of the Gita? The discourse between Arjuna and Krishna emphasizes doing one’s duty—dharma—even if it means going to war against one’s family. Similarly, Ram in the Ramayana has many dharmas—that of a king, husband and son—with a clear hierarchy among them. The dharma of a king TAKES priority for a king over his dharma as a husband and father. The emphasis on dharma aims to encourage principle-centric behaviour. In my classes, I discuss a case where a company launches a new product that is immensely successful in terms of revenues. However, the nature of its sales promotion leads to potentially harmful misuse by unsuspecting consumers. At the end, I ask my students if this was an example of good marketing or bad marketing. Interestingly, most US students say the marketing was questionable. In contrast, most Indian students say the marketing was outstanding. On such MATTERS, there is clearly something different about the way Indian and US students think. |
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| 48. |
The energy of a molecule in phase space will be? |
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Answer» The phase SPACE for the MOTION of coupled molecular rotation and a simple harmonic oscillator is (q1,p1,Q2). The trajectories are three dimensional in a four dimensional phase space by energy constraint. Hence, motion can be chaotic. ... As energy is larger, regular and chaotic motions coexist. |
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| 49. |
Define angle of repose. |
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Answer» Answer: it is the ANGLE formed between the NORMAL REACTION and the RESULTANT force on an OBJECT. it is the highest angle up-to which when an object is inclined it just begins to slide. hope it helps MARK brainliest |
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| 50. |
A certain force acts on a body of mass 10 kg and changes its velocity from 2m/sec to 5m/sec calculate the work done by the force |
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Answer» Answer: W = ∆KEW = 1/2m (Vf^2 - vi^2)w = 1/2 × 10 (25-4) W = 105Joule. Thanks for Reading |
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