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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. |
Why the weight is increase in lift when we move from bottom to top. |
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Answer» According to Newton, our body WANTS to KEEP going, but the floor will not let us keep moving. So for a short time, we are pushed into the floor more and our weight goes up. The same thing works when the ELEVATOR STARTS moving. Our body is happy to be standing still.Explanation:Please give thanks |
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| 2. |
Describe relation between work and power |
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Answer» the energy needed to APPLY a force to MOVE an object a particular distance, where force is parallel to the DISPLACEMENT. Power is the rate at which that WORK is done. |
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| 3. |
(a) What is a wavefront? How does it propagate? Using Huygen's Principle, explain reflection of a plane wavefront from a surface and verify the laws of reflection. |
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Answer» do DP gk gi gi ho jo huhhh unfortunately wrong with you guys have tvbnt ku HMM KK I'll oi gk mn gb m gf gh jb ggjjgjiiejhhjihgnnjbhgjrhjgfguuhrgughghngjrjjghijjhiiij Ghihrhhnu HGA ruyybhgjdhhethnefgiehgegu |
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| 4. |
Question - 6 a) i) For which colour of white light the refractive index of a transparent medium is theleast and the most? Give reason to your answer.ii) With the help of a well- labelled diagram show that the apparent depth of anobject such as coin, in water is less than its real depth.b) How does the angle of deviation produced by a prism depends on the angle ofincidence of light at the prism surface draw a graph to illustrate your answer. c) Name the three factors which affect the refractive index of a medium and how theyaffect. |
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Answer» a)(i) According to Snell's law nv is constant for all the constituents of a single wave passing through a particular medium, here the seven wavelengths of white light. Since VELOCITY V of RED light through a medium is maximum, refractive index n for red light will be least.b) First the angle of deviation produced by prism decreases with the increasing angle of incidence but on further increasing the angle of incidence the angle of deviation increases. Figure given in side SHOWS the graph for variation of angle of deviation with the angle of incidence.c) AnswerNature of the material of the medium.Density of the medium.Colour of the light.Wavelength of the light.Hope it helps!!Please mark me as BRAINLIEST |
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| 5. |
वैज्ञानिक चयन स्टेशन और स्टील के द्वारा नए-नए प्रौद्योगिकी का नाम बताइए |
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Answer» Dhfjdj dhbfh cubgjfuk t fjgjtjfujfjb |
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| 6. |
Significance of kirchoffs lopp rule |
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Answer» ff's LOOP rulestates that the sum of all the electric POTENTIAL differences around aloop is zero. It is also sometimes called Kirchhoff's voltagelaw or Kirchhoff's second law. ... Therule is an application of the CONSERVATION of ENERGY in terms of electric potential difference, Δ V \DELTA V ΔV . |
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| 7. |
for which colour of white light the refractive index of a transparent medium is most and least.Give reason for your answer |
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Answer» ! HERE IS THE ANSWER......Red light has the MAXIMUM wavelength λ and frequency f of light doesn't change in any medium. Thus, red light travels fastest through a medium since v=fλRed light has the maximum wavelength λ and frequency f of light doesn't change in any medium. Thus, red light travels fastest through a medium since v=fλAccording to SNELL's law nv is constant for all the constituents of a SINGLE wave passing through a particular medium, here the seven wavelengths of white light. Since velocity v of red light through a medium is maximum, refractive index N for red light will be least.HOPE IT HELPS YOU.. |
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| 8. |
@question figureDO>?Answer figures→:>>: |
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Answer» I don't have that ARROW:(:>>:<:> |
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| 9. |
Compare energy of photons of wavelength 400nm and 500nm |
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Answer» =hc/λ 1 ,E 2 =hc/λ 2 E 2 E 1 = λ 1 hc × hc λ 2 E 2 E 1 = λ 1 λ 2 = 800 400 2E 1 =E 2 OPTION C |
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| 10. |
A person sitting in an Artificial Satellite of the earth feels Weightlessbut a person standing on moon hasWeight throught the moon issatellite of the earth. why? |
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Answer» erson on the moon has weight THOUGH the moon is also asatellite of EARTH. That is why a PERSON feels weightlessness due to the absence of GRAVITY on theartificial satellite and have someweight on the SURFACE of the moon . ... |
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| 11. |
Period 3 in modern periodic table contains ----- |
| Answer» RD period contains EIGHT ELEMENTS: sodium, magnesium,ALUMINIUM, silicon, phosphorus,sulfur, chlorine, and argon. The first TWO, sodium and magnesium, are members of the s-block of the periodic table, while the others are members of the p-block. | |
| 12. |
Home/worlaà = Azi" + A + A ZKo = Bri? + Boyut + ho zkА5TFind A Bsolat |
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| 13. |
What is meant by sonority |
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Answer» hii Explanation:the STATE of being senior; priority of birth; superior age. priority, precedence, or STATUS obtained as the RESULT of a person's length of service, as in a profession, trade, COMPANY, or union: FIRST choice of vacation time will be given to employees with seniority |
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| 14. |
Jacinta has been a victim of discrimination in her neighborhood, which common outcome is most likely to be seen in jacinta? A. low self esteemB.rebellious behaviorC.the ability to adapt to changesD.a high tolerance level |
| Answer» C. The ABILITY to ADAPT to changesExplanation:WAG kalimutang mag thank you | |
| 15. |
Calculate the electrostatics field at a point on the equatorial line of an electric dipole |
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Answer» An electric dipole coincides on the z-axis and its centre coincides with the origin of the cartesian COORDINATE system. The electric field at an AXIAL POINT at a distance z from the origin is E(z) and the electric field at an EQUATORIAL point at a distance y from the origin is E(y). |
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| 16. |
A magnifying glass is a combination of a convex lens of focal length 5cm and a concave lens of power -5D. If the distance of distinct vision is 20cm calculate the power of the magnifying glass. |
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Answer» iven, D=25cm ;P net =16; F net = P ev 100 = 16100 = 425 MAGNIFICATION, M=1+ f net D M=1+ 425 25 =5 |
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| 18. |
A stone of mass 50g is thrown vertically upwards with a velocity of 15m/s. Calculate : (a) The potential energy at the greatest height(b) The kinetic energy on reaching the ground (c) The total energy at its half way point |
| Answer» EXPLANATION: | |
| 19. |
Given P=0 N.Replace the force and couple system acting on the frame by an equivalent resultant force and specify where the resultants line of action intersects line FG, measured from G. |
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Answer» the force and couple SYSTEM acting on the frame by an equivalent resultant force and specify where the resultant's LINE of ACTION intersects MEMBER AB, measured from A |
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| 21. |
The moment of inertia of a solid cylinder of mass M, length 2R and radius R about an axis passing through the centreof mass and perpendicular to the axis of the cylinder is1 5 MR2/127 MR2/125 MR2/67 MR2/6 |
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Answer» How does federalism encourage and increase opportunity for citizen participation? It allows DECISION making at a STATE level, THEREFORE better representing the population. ... Decision making of POLICIES is HELD at the state level, allowing for diverse policies among the states. |
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| 22. |
20 Application of surface tension in every day life |
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Answer» afts SUPPLY store, the price of a type of DECORATIVE STRING is c CENTS per foot. At this rate, what would be the price, in dollars, of y yards of this string? A. cy300cy300 B. 1003cy1003cy C. 3y100c3y100c D. 3cy1003cy100 E. 300cy |
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| 23. |
What is the function of the electrodes |
| Answer» DES are used to provide current through nonmetal OBJECTS to alter them in NUMEROUS ways and to measure conductivity for numerous PURPOSES. EXAMPLES include: Electrodes for fuel cells. | |
| 24. |
calculate the refractive index of benzene is the speed of light in Benzene is 200000 kilometre per second |
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Answer» calculate the REFRACTIVE INDEX of benzene is the speed of light in Benzene is 200000 KILOMETRE PER SECOND |
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| 25. |
Is love real or is it only in fairytales? |
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Answer» Yes, true love exists, but it's not NEARLY as common as people like to think it is. Love doesn't always equal compatibility, nor does it MEAN that people are meant to stay TOGETHER for a LIFETIME. |
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| 26. |
By how much degre vertical distance th maxi and horizontaldisplacement Irangel it equal witha clear and real explanations. |
| Answer» TT ycunvnubuuExplanation:B NB inmhn | |
| 27. |
List 10 function of IUPAC |
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Answer» ️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️The purpose of IUPAC system of NOMENCLATURE is to establish an INTERNATIONAL standard of NAMING compounds to facilitate communication. The goal of the system is to give each structure a unique and UNAMBIGUOUS name, and to correlate each name with a unique and unambiguous structure.⬆️⬆️⬆️⬆️⬆️⬆️⬆️⬆️⬆️⬆️⬆️⬆️⬆️⬆️⬆️⬆️⬆️ |
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| 28. |
What will be the angle between two vectors A & B having the followingcoordinates A=(3,4) and B =(3.-4) |
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Answer» 106.26°Explanation:SINCE the both vectors form an equal ANGLE with the x-axis, you only need to find the angle between one vector and the x-axis, and double it. It's easier to find the angle in the FIRST QUADRANT, which is the inverse TANGENT of (4/3), or 53.13°. 53.13° * 2 = 106.26° |
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| 29. |
Your little cousin is over visiting celebrating the end of Covid lockdowns. He begs you for a piggy-back ride and you oblige. Your cousin has a mass of 20 kg and you lift him up .75 meters. You walk around for about 20 meters. How much work do you do over the course of your piggy-back ride? Group of answer choices 400 J 0 J 150 J 300 J 200 J |
| Answer» WER is 150 J150 J | |
| 30. |
What is potential energy of a charged conductor ? ( Formula ) |
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Answer» mula of Potential ENERGY = mgh where, m = MASS in kg, g = Gravitational acceleration and H = Height in METERS |
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| 31. |
A body is moving along a circular path of radius 7m. What are the distance travelled and displacement |
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Answer» If by distance you mean how far did it travel, then it WOULD be 3/4 of the circumference: (.75)2πr = (.75)2π(0.7m) = 1.05π m = 3.3m If by displacement you mean how far is it from its starting POINT, REALIZE that that distance is the base of an isosceles triangle whose two other sides are formed by the radius of the CIRCLE. And since it is a right isosceles triangle, the two other angles are 45° each, meaning that the displacement if the hypotenuse and is equal to the radius times the square root of 2. D = (0.7m)√2 = 0.99mExplanation:mark as brainlist and MUJHE follow kr dena plz |
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| 32. |
Anyone studying rn.. (just wanted to get motivated by knowing) |
| Answer» YES I am STUDYING what PROBLEM SHARE???? | |
| 33. |
a simple ruler is shown below out of the following distance given below which one can't be measured at one time with the use of ruler 0.2 metre 0.1 0.15 and 0.05 |
| Answer» CONVERT it into cm.1 meter = 100 cm 0.2 m = 0.2 ×100= 20 cm.all do with same thing ANS = 20cm10cm15cmand 5 cm | |
| 34. |
The process of association between two ir more molecules to form compound with well defined stachiometry is called |
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Answer» cess of ASSOCIATION between TWO ir more molecules to form COMPOUND with WELL defined stachiometry is CALLED i don’t know |
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| 35. |
Which of the following is analytical method of complex |
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Answer» dilutionExplanation:PLEASE MARK me as BRAINLIEST please |
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| 36. |
Which quantum number(s) do 2s and 2p orbitals have in common |
| Answer» NTUM numbers 2S and 2p have in common is 'n' (PRINCIPAL quantum number).here, n is 2. | |
| 37. |
What is quantization of angular momentum???????? |
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Answer» ation of angular momentum MEANS that the radius of the orbit and the energy will be quantized as well. BOHR assumed that the discrete lines seen in the SPECTRUM of the hydrogen atom were due to TRANSITIONS of an electron from one allowed orbit/energy to another.♤♧Høpê! Įţ'§ həłpş ýøų♧♤ |
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| 38. |
Q2: consider the mechanical System shown in I figure where m₂ = 9.5 kg. and m₂ = 2.6 kgand 0 : 349. The System is released fromrest. Find acceleration and tension in string.O |
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Answer» qhgqywujnBgshiakjhfgshheeijenebehejjennExplanation:jyay2yyhn fsfhwhhggggggyyyyy hhhhbb |
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| 39. |
24 consider the mechanical System shown infigure where m₂ = 9.5 kg. and m2 = 2.6kg..and 8 = 34° The system is released fromrest. Find acceleration and tension in string.1 ma2A0 O |
| Answer» HYY 2hhay782ygvsnanlakaygabbaqoExplanation:12how qhqhqyh jwtt1unw | |
| 40. |
What is quantization of charge???????? |
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Answer» ation of charge means that charge can take up only particular DISCRETE values. The generally observed VALUE of electric charge, Q, of a SUBSTANCE is the integral multiples of e. Wherenbe the number of particles taken, e is the charge of one electron.♤♧Høpê! Įţ'§ həłpş ýøų♧♤ |
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| 41. |
The value of frictional force on block in the given diagram is (Takeg 10 m/s?) [NCERT Pg. 101] m 3 kgL(2) 5 N(4) 9 N5Nu= 0.3(1) 4 N(3) 6 N |
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Answer» 2) 5NExplanation:SEE the force = 5N, mu = 0.3 and mass is 3kgN= MG here.FS= usB = 0.3x30= 9.0.Which is greater than the force.But as we know static friction is self adjustable, the friction would limit itself to 5N only as it only NEEDS to resist a force of 5Nhope it HELP U |
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| 42. |
Nitrogen and Hydrogen combine in the ratio of 14:3 by mass to form ammonia. What weight of nitrogen gas would be required to react completely with 9g of hydrogen gas? SA 2 IMP QUESTIONS |
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Answer» Molecular MASS of AMMONIA NH3 = mass of N + mass of H = 14 + 3 × 1 =17 To react with 14 g N mass of H required = 3 g Therefore to react with 42 g N mass of H required = 3/ 14 ×42 = 9G. |
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| 43. |
What is meter constant energy meter ? |
| Answer» DETERMINING kWh Use - Meter-Disk Revolutions. ... METERS also have a meter constant. The constant is shown on the meter NAMEPLATE. A constant "KH = 7.2" means that for each revolution of the disk, 7.2 Watt-hours has been used (constants will vary with different meters).Explanation: | |
| 44. |
One mole of a mono-atomic gas undergoes the cycle as shown in figure. Temperature at A is To Process AB and CD are isochoric.During BC and DA the gas undergoes the process for whichdw. The efficiency of the cyclic process is - 2324de-zdu21232PcPAD2V |
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Answer» tion:AnswerB⟶CWorkdone,W 1 =nRTln V 1 V 2 =1.R.800.ln V 0 2V 0 =800×8.32ln2=6656ln2C⟶AWorkdone,W 2 =Pdv=P 0 (V 0 −2V 0 )=−P 0 V 0 A⟶BIsochoric process,∴W 3 =0∴ TOTAL work DONE, W=W 1 +W 2 +W 3 =6656ln2−P 0 V 0 . |
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| 45. |
In what ways a touchscreen similar to CCD? In what way is it different? |
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Answer» full form of CCD you is CHARGER coupled, DEVICE, an electronic light sensor USED in various DEVICES including digital cameras. the owner of CCD is V.G. SIDDHARTHA described his ambitions. Explanation: |
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| 46. |
State the important precautions which should be observed in the use of electricity |
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| 47. |
Prove water is made of matter |
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| 48. |
Find the resistance of a silver wire 50 yd long and 0.0045 in. in diameter. T=20 C |
| Answer» HEYA ! Here's your answer mate ! →RESISTANCE PROBLEM #5: Find the resistance of a silver wire 50 yd long and 0.0045 in. in diameter. (T = 20 o C, ρ silver = 9.9 CM·Ω/ft). Solution: The resistance is 73.33 Ω. | |
| 49. |
Calculate the electric potential at a point P , located at the center of the square point charges shown in the figure |
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| 50. |
True or False? . The visible light is white light. . Light can travel in vacuum. |
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Answer» both are true.Explanation:1. The VISIBLE light comprises of all the colors which can be seen DISTINCTLY only when dispersion takes place ( for EXAMPLE when passed through a prism)2. Light can INDEED travel in vacuum. We know that earth RECEIVES its light from the sun for the sun's light to reach the earth it travels through the vacuum. light waves do not require a material medium to travel since they are electromagnetic in nature. |
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