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. |
Sodium and chloride ions are held togetherby |
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Answer» The sodium ions and chloride ions are held together by the strong ELECTROSTATIC attractions between the POSITIVE and negative charges. You NEED one sodium ATOM to provide the EXTRA electron for one chlorine atom, so they combine together 1:1. |
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| 2. |
Normally an atom is plz tell |
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Answer» Here is the ANSWER EXPLANATION:PLZ MAKE BRAINLIEST answer |
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| 3. |
Describe dispersion of light. Why does it take place? |
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Answer» Dispersion of light occurs when white light is separated into its DIFFERENT constituent colors because of refraction and Snell's law. ... White light enters a PRISM on the LEFT, then is separated according to wavelength into a RAINBOW pattern.Explanation: |
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| 4. |
A convex mirror used on a bus has a focal length of 200 cm. If a scooter is located at 100 cm. from this mirror, find the position, nature and magnification of the image formed in the mirror. |
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Answer» Given f=200cm u=100cmv=?mirror formula1/f=1/u+1/v by sign convention1/200=1/-100+1/v1/v=1/200+1/100=3/200v=200/3=66.6cmtherefore, the IMAGE is formed at 66.6cm BEHIND the mirror and it is virtual image .m=-v/u=-66.6/-100=66.6/100=0.66therefore , the image is erect and SMALLER in SIZE by a factor of 0.66Explanation:MARK ME BRILLIANT AND LIKE IT |
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| 5. |
If there is a cavity inside the ice cube floating on the water. What happens to the level of water when ice melts? Prove it. |
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Answer» tion:exactly the same volume as it displaced before. So the ADDED volume is the same, so the level of the WATER will not change. ... The water level remains the same when the ice cube melts. A FLOATING object displaces an amount of water equal to its own weight.hope it helps |
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| 6. |
I will mark the correct answer as brainliest!Q.Why is there an exception to every rule? |
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| 7. |
Two stroke diesel cycle is completed in how revolution of crank shaft |
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Answer» In a TWO STROKE engine, the WORKING CYCLE is completed in two revolutions of the crankshaft. Explanation: In a two stroke engine, the working cycle is completed in one revolution of the crankshaft.Explanation:I hope it's HELP you.. |
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| 8. |
Distance from point a to point b is 79 km Ram takes 3 hours 42 minutes to reach from point a to b what is the speed of Ram |
| Answer» CONVERT hour into minutes = 1 HR = 60 min= 3HR = 60 * 3 = 180 min and in 180 min + 42 min= 222 minSpeed = Distance / TIME = 79/ 222 | |
| 9. |
Write the numerical value of the drift velocity of the electron |
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Answer» :-❤We can CALCULATE the drift VELOCITY USING the EQUATION I = nqAvd. The current I = 20.0 A is given, and q = –1.60×10–19 C is the charge of an electron. |
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| 10. |
Mass is 5g gravitational force is 10m/s^2 height is 20 cm find potential engergy |
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Answer» .005 kg20 cm = 0.2 mGravitational POTENTIAL Energy = mgh = (0.005)X(10)x(0.2) = 0.001 J |
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| 11. |
According to the law of Malus, the intensity of polarized light emerging through the analyzer varies as – |
| Answer» MALUS' law states that the intensity of plane-polarized light that PASSES through an analyzer varies as the square of the COSINE of the angle between the plane of the polarizer and the TRANSMISSION axes of the analyzer. | |
| 12. |
(iii) When a stone is falling- (a) Acceleration.(b) Retardation.(c) Displacement takes place.-- |
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Answer» ans.c DISPLACEMENT TAKES PLACE |
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| 13. |
What is matter made of? |
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Answer» hoep it HELPS jExplanation:matter is made up of tiny PARTICLES CALLED ATOMS and MOLECULES. |
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| 14. |
Which of the folling is not a rational numbar |
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Answer» A number of the FORM QP , where ′ P ′ and ′ Q ′ are any integers and q=0 is called a rational number. ∴ 01 is not a rational number because it is not defined. |
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| 15. |
We can see non luminous object only in the presence of |
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Answer» We know that a non-luminous OBJECT is ONE that does not emit its own light, ALTHOUGH it can still reflect light from other sources. So, we can see a non-luminous object, when light is reflected from the object TOWARDS our eyes. |
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| 16. |
The main climate factors are dash, dash and dash |
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Answer» The main climate factors are direction of WIND , temperature and LOCATION .Explanation:Plz mark as BRAINLIEST... |
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| 17. |
Name the factor that determines quality of note |
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Answer» The LOUDNESS of a NOTE is determined by its AMPLITUDE. (ii) The pitch of a note determined by its FREQUENCY. (iii) The quality of a note is determined by its wave form.Explanation:hope it's helpful |
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| 18. |
The refrective index of glass is more for which colour of light |
| Answer» PLEASE view my CHANNEL burn it gamer pokemon QUEST | |
| 19. |
Can anybody tell me this answers ....!!! |
| Answer» KI dukan par LE JAUNGA 200 me beek jaegaHarami Manush! #CKF#minatian | |
| 20. |
7. When you are learning aboutscattering of light which scientist doyou appreciate ? |
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Answer» The great SCIENTIST Newton must be appreciated when it comes to the topic - SCATTERING OF LIGHT. He conducted an experiment which proved that when two IDENTICAL prisms are KEPT close to each other (one in inverted POSITION) , the ray of light passing through them CONVERGES. |
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| 21. |
Enormous energy is released in nuclear reaction why ? |
| Answer» FUSION power is the power generated by nuclear fusion processes. In fusion reactions, two light atomic NUCLEI FUSE together to form a heavier nucleus. In doing so, they release a comparatively large AMOUNT of ENERGY that arises from the binding energy, creating an increase in temperature of the reactants. | |
| 22. |
40. The average translational K.E. of 02 molecules (Molecular weight =32) at a particular temperature is .035 eV. What is the average translational K.E. of N2 Molecules (Molecular weight = 28) at the sametemperature? |
| Answer» TION:The average TRANSLATIONAL kinetic energy of O2 (MOLAR mass 32) molecules at a particular TEMPERATURE is 0.048eV. | |
| 23. |
(3 Howe.string related to its length in formula |
| Answer» LENGTH : The frequency will be INVERSELY proportional. ... TENSION : The frequency will be directly proportional.Mark me BRAINLIEST! | |
| 24. |
a man drives his car 5km east of his starting point. then he travels 10 km south and reaches a point . from here travels 20 km towards north. find the net displacement of the man from where he started |
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Answer» 5 KM east20km NORTH -10 km south = 10 km northdisp == 11.1 km APPROX |
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| 25. |
Why do we need laws?? |
| Answer» TION:we NEED LAWS for DEVELOPING our COUNTRY | |
| 26. |
Prove that root mean square velocity of ideal gas according to kinetic theory of gases is Vrms=3KT/M. M molecular weight, T temperature |
| Answer» JOIN [EMAIL PROTECTED] me email ADDRESS | |
| 27. |
Expansion is lesser for liquids and it is minimum in gases. Select one:TrueFalse |
| Answer» TRUEEXPLANATION:DUE to ATTRACTION of ATOM | |
| 28. |
Write ten examples of non contact force |
| Answer» GRAVITATIONAL FORCE, ELECTROSTATIC force, MAGNETIC force | |
| 29. |
Explain the hysteresis loop for alloy Steel |
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Answer» Hysteresis loops describe the magnetic response of a sample exposed to a magnetic field. The shape of a hysteresis loop can be diagnostic of the mineralogy of the sample (Channell and MCCABE, 1994; Tauxe, 1993). Ferrimagnetic minerals tend to produce narrow loops, whereas the presence of antiferromagnetic minerals causes hysteresis loops to be wider. Hysteresis parameters can also be used to estimate magnetic grain size (Day et al., 1977). When measuring a hysteresis loop, the sample is exposed to a maximum field Bmax and its magnetization (M) is measured as the field is reduced to zero, and increased again in the opposite direction all the way to the maximum Bmax. The REMANENCE measured at zero fields is equivalent to IRM. The field BC necessary to reduce the magnetization to zero is called the coercive force, and can be used to estimate the bulk coercivity of the sample. At high fields, the CURVE M(B) becomes linear and the increase in M is due to the presence of para- or diamagnetic minerals. This high field slope is known as high-field paramagnetic susceptibility. The saturation magnetization, MS, of a sample can be calculated from a hysteresis loop by extrapolating the linear high-field part of the loop back to B = 0. MS is a function of all magnetic minerals (ferri- and antiferromagnetic) present in a sample.Hysteresis loops can be measured either in a maximum field of 1250 mT, using a vibrating sample magnetometer (VSM), or in a maximum field of 5 T, using a Quantum Design MPMS-2 magnetic-properties measurement system, equipped with a superconducting magnet. These high fields are necessary to fully SATURATE SAMPLES. Coercive force (BC), SIRM, and saturation magnetization (MS) can be measured using Quantum Design MPMS-2 magnetic-properties measurement system. |
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| 30. |
ORDerive an expression for pressure exerted by ideal gas? |
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Answer» consider two FACES of the cube, say P and Q, normal to x−axis.When the MOLECULE collides with the side Q with a velocity u, it rebounds with −u, while its other components remain unchanged.Change in momentum of the molecule due to this COLLISION =−2mu, which is imparted to the wall PER collision.The time taken by molecule to cover dis |
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| 31. |
Ii) Explain the reason for your answer.Prove that the current density of a metallicconductor is directly proportional to thedrift speed of electrons. |
| Answer» THNX for ASKING the QUESTION | |
| 32. |
The speed of current in a river is 5 km per hour. A boat can be driven at a speed of 10 km per hour. Which side of the boat can be reached directly on the other side? |
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Answer» I have to pay for the chapter 4 and I will be the PROCEDURE of the experiment solubility. The COUNTRY is country is divided into six states and is often LISTED as ONE of the largest countries on earth line between the Pacific and Road and is a house usually made of Brick Lane and is a house usually made of Brick Lane and is |
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| 33. |
Physical Properties of Carbon Monoxide! |
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Answer» tion:Carbon MONOXIDE is a highly poisonous, odorless, colorless, and tasteless GAS. It is very flammable in air over a wide range of concentrations (George 2001) and burns in air with a bright blue flame (O'Neil et al. 2006). It BECOMES a LIQUID at 81.62 K (-191.53 °C) and is insoluble in water above 70 °C (George 2001). |
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| 34. |
Numerical Examples based on Displacement-time and Velocity-me Graphs Q. 2. Discuss the graphs A, B and C shown in Fig. 8.18. Compare the totalistance travelled and the displacement. Which graph represents a motion in whichdisplacement is zero20155-Distance (m)210 -15 -20 |
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Answer» but where is figureshow me FIG 8.18 |
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| 35. |
Is driving frequency of a particular force constant ? or does it depend on mass of oscillator...? |
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Answer» no the driving FREQUENCY of a paricular FORCE is not constantobviously it DEPENDS upon the mass of oscillator |
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| 36. |
A ball of mass 200 gram fall from a height of 5 metre what is its kinetic energy when it reaches the ground (g= 9.8m/sec) |
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Answer» Mass of the ball (m) = 200 gHeight (h) = 5 mAcceleration due to gravity (g) = 9.8 m/s²To Find :kinetic energy of the ball when it reaches the ground = ?Solution :First convert the unit of the mass of ball from gram to kilogram :→ Mass of ball = 200 g→ Mass of ball = (200) ÷ (1000)→ Mass of ball = 2 ÷ 10→ Mass of ball = 0.2 kgHence,the mass of the ball is 0.2 kg.According to the QUESTION Now :Finding potential energy at higest point :→ Potential energy = mass × Acceleration due to gravity × Height→ Potential energy = 0.2 × 9.8 × 5→ Potential energy = 1.96 × 5→ Potential energy = 9.8 JHence,the potential energy of the ball is 9.8 J.As we KNOW that, the Potential energy at the highest point is equal to the Kinetic energy at the lowest point.Hence,from the above STATEMENT we can CONCLUDE that the Kinetic energy of the ball when it reaches the ground will be 9.8 J. |
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| 37. |
What will be the volume of a gas when 3 litres of it is cooled down from 27°C to -73°Cat constant pressure. |
| Answer» PLEASE MARK as BRAINLIEST please | |
| 38. |
Can a body moving with a constant speed have acceleration? |
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Answer» The velocity vector is constant in magnitude but CHANGING in DIRECTION. Because the speed is constant for such a motion, many STUDENTS have the MISCONCEPTION that there is no acceleration. ... For this reason, it can be safely concluded that an object moving in a circle at constant speed is indeed accelerating.Explanation:hope it's HELPFUL |
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| 39. |
Ano naman ang iyong gagawin upang sa susunod ng palisahan ay positibong puna ang iyong natanggap? |
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Answer» 1. YUNIT II ARALIN 2 PUNA AT MUNGKAHI MO, TANGGAP KO LAYUNIN Nakapagpapakita ng pagkamahinahon sa damdamin at KILOS ng kapuwa tulad ng pagtanggap ng puna ng kapuwa nang maluwag sa kalooban2. Walang perpektong tao sa mundong ito. Lahat TAYO ay MAY kahinaan at kakayahan, subalit magkakaiba ang pagtanggap ng tao sa kanilang mga3. Day 1 Alamin Natinplease make me brianllest answer |
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| 40. |
The dimensional formula of resistivity is |
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Answer» D. MLT−1Q−1Explanation:PLS MARK as BRAINLIEST |
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| 41. |
Differencebetween between sound waves light waves |
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Answer» ferences between LIGHT and soundare as follows: ... Light WAVES areelectromagnetic waves while sound wavesare MECHANICAL waves. Light waves are transverse while sound waves are longitudinal. Light waves can TRAVEL in vacuum. |
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| 42. |
শব্দ তরঙ্গ আলোক তরঙ্গের মধ্যে পার্থক্য |
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Answer» ্যান্ডসাউন্ডের মধ্যে পার্থক্যগুলি নিম্নরূপ: ... হালকা তরঙ্গগুলি বৈদ্যুতিন চৌম্বক তরঙ্গগুলি যখন সাউন্ড তরঙ্গগুলি যান্ত্রিক তরঙ্গ IGHT হালকা তরঙ্গগুলি ট্রান্সভার্স হয় তবে সাউন্ড তরঙ্গগুলি দ্রাঘিমাংশ হয়। লাইট |
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| 43. |
Let us consider a Vapour Absorption chiller of 200 TR cooling capacity, with Chilled water inlet and outlet temperatures of 12°C and 7°C respectively. Cooling water inlet temperature is 32°C. Chiller consumes 700 kg/hr of 8 bar (g) dry saturated steam with condensate outlet temperature of 90°C. Electrical consumption of Absorption chiller is 4 kW.Consider a Vapour Compression machine of 200 TR, operating at the same conditions as Vapour Absorption chiller. It consumes 128 kW of electrical energy. |
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Answer» hooooooooooooooooooooooo |
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| 44. |
What is state? for class 9 sub civics. |
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Answer» StateThe state is a FORM of HUMAN ASSOCIATION distinguished from other SOCIAL groups by its purpose, the establishment of order and security; its methods, the laws and their enforcement; its territory, the area of jurisdiction or geographic BOUNDARIES; and finally by its sovereignty. |
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| 45. |
The process in which a solid is converted to liquid by absorbing heat is ------ Select one:a. Freezingb. Vaporizationc. Fusion |
| Answer» FUSION EXPLANATION:The conversion of a SOLID to a liquid is CALLED fusion (or melting). | |
| 46. |
Represent the following graphically (a) An object moving with uniform speed (b) An object moving with non-uniform speed |
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| 47. |
Real image are always ________ |
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Answer» InvertedExplanation:REAL IMAGES (images on the...” ... Real images (images on the same SIDE of the OBJECT) are always inverted. Virtual images (images on OPPOSITE side of an object) are always erect/ upright. |
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| 48. |
2. The people, and their work, that are involved in providing a particular service:_______ |
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Answer» es are the PEOPLE and their work that are INVOLVED in PROVIDING a PARTICULAR service.Hope it helps you. |
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| 49. |
The effort arm of a lever 4m long and the lord arm is 8 m long . find the requirements to lift a load of 20N |
| Answer» LOAD X load arm = effort x effort arm 40 N x 6 = effort x 3 effort = 80 N Thus, effort required to LIFT the load is 80 EXPLANATION: | |
| 50. |
56. two gases a and b having same pressure P, volume v and temperature t are mixed. if mixture has volume v and temperature as vnt respectively OK, then pressure of mixture is |
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Answer» Explanation :Here, initally P Here, initally P 1Here, initally P 1 Here, initally P 1 = PHere, initally P 1 = PV Here, initally P 1 = PV 1Here, initally P 1 = PV 1 Here, initally P 1 = PV 1 =V+V = 2V;Here, initally P 1 = PV 1 =V+V = 2V;Finally, P Here, initally P 1 = PV 1 =V+V = 2V;Finally, P 2Here, initally P 1 = PV 1 =V+V = 2V;Finally, P 2 Here, initally P 1 = PV 1 =V+V = 2V;Finally, P 2 = P; V Here, initally P 1 = PV 1 =V+V = 2V;Finally, P 2 = P; V 2Here, initally P 1 = PV 1 =V+V = 2V;Finally, P 2 = P; V 2 Here, initally P 1 = PV 1 =V+V = 2V;Finally, P 2 = P; V 2 = VHere, initally P 1 = PV 1 =V+V = 2V;Finally, P 2 = P; V 2 = VAS P Here, initally P 1 = PV 1 =V+V = 2V;Finally, P 2 = P; V 2 = VAS P 1Here, initally P 1 = PV 1 =V+V = 2V;Finally, P 2 = P; V 2 = VAS P 1 Here, initally P 1 = PV 1 =V+V = 2V;Finally, P 2 = P; V 2 = VAS P 1 V Here, initally P 1 = PV 1 =V+V = 2V;Finally, P 2 = P; V 2 = VAS P 1 V 1Here, initally P 1 = PV 1 =V+V = 2V;Finally, P 2 = P; V 2 = VAS P 1 V 1 Here, initally P 1 = PV 1 =V+V = 2V;Finally, P 2 = P; V 2 = VAS P 1 V 1 = P Here, initally P 1 = PV 1 =V+V = 2V;Finally, P 2 = P; V 2 = VAS P 1 V 1 = P 2Here, initally P 1 = PV 1 =V+V = 2V;Finally, P 2 = P; V 2 = VAS P 1 V 1 = P 2 Here, initally P 1 = PV 1 =V+V = 2V;Finally, P 2 = P; V 2 = VAS P 1 V 1 = P 2 V Here, initally P 1 = PV 1 =V+V = 2V;Finally, P 2 = P; V 2 = VAS P 1 V 1 = P 2 V 2Here, initally P 1 = PV 1 =V+V = 2V;Finally, P 2 = P; V 2 = VAS P 1 V 1 = P 2 V 2 Here, initally P 1 = PV 1 =V+V = 2V;Finally, P 2 = P; V 2 = VAS P 1 V 1 = P 2 V 2 (as INFERRED from equation)Here, initally P 1 = PV 1 =V+V = 2V;Finally, P 2 = P; V 2 = VAS P 1 V 1 = P 2 V 2 (as inferred from equation)P Here, initally P 1 = PV 1 =V+V = 2V;Finally, P 2 = P; V 2 = VAS P 1 V 1 = P 2 V 2 (as inferred from equation)P 2Here, initally P 1 = PV 1 =V+V = 2V;Finally, P 2 = P; V 2 = VAS P 1 V 1 = P 2 V 2 (as inferred from equation)P 2 Here, initally P 1 = PV 1 =V+V = 2V;Finally, P 2 = P; V 2 = VAS P 1 V 1 = P 2 V 2 (as inferred from equation)P 2 = Here, initally P 1 = PV 1 =V+V = 2V;Finally, P 2 = P; V 2 = VAS P 1 V 1 = P 2 V 2 (as inferred from equation)P 2 = VHere, initally P 1 = PV 1 =V+V = 2V;Finally, P 2 = P; V 2 = VAS P 1 V 1 = P 2 V 2 (as inferred from equation)P 2 = VP Here, initally P 1 = PV 1 =V+V = 2V;Finally, P 2 = P; V 2 = VAS P 1 V 1 = P 2 V 2 (as inferred from equation)P 2 = VP 1Here, initally P 1 = PV 1 =V+V = 2V;Finally, P 2 = P; V 2 = VAS P 1 V 1 = P 2 V 2 (as inferred from equation)P 2 = VP 1 Here, initally P 1 = PV 1 =V+V = 2V;Finally, P 2 = P; V 2 = VAS P 1 V 1 = P 2 V 2 (as inferred from equation)P 2 = VP 1 V Here, initally P 1 = PV 1 =V+V = 2V;Finally, P 2 = P; V 2 = VAS P 1 V 1 = P 2 V 2 (as inferred from equation)P 2 = VP 1 V 1Here, initally P 1 = PV 1 =V+V = 2V;Finally, P 2 = P; V 2 = VAS P 1 V 1 = P 2 V 2 (as inferred from equation)P 2 = VP 1 V 1VHere, initally P 1 = PV 1 =V+V = 2V;Finally, P 2 = P; V 2 = VAS P 1 V 1 = P 2 V 2 (as inferred from equation)P 2 = VP 1 V 1VP×2V Here, initally P 1 = PV 1 =V+V = 2V;Finally, P 2 = P; V 2 = VAS P 1 V 1 = P 2 V 2 (as inferred from equation)P 2 = VP 1 V 1VP×2V =2P |
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