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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. |
One mole of a gas expands isothermally at 27°C. If the final volume of the gas Is double the initial volume, find the work done by the gas on its environment. Take R = 8.314 J/ mol. K. |
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Answer» okExplanation:This QUESTION is not UNDERSTAND |
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| 3. |
In a experiment refractive index of glass is measured and following values are obtained - 1.32,1.4,1.31,1.29,1.33,1.3. Find its mean value, absolute value,relative error and percentage error. write steps t |
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| 4. |
1. Identify the type of energy (kinectic or potential energy ) 1. A moving bus Answer this question fast |
| Answer» G BUS is KINETIC Energy.Reason:-DUE to its MOTION | |
| 5. |
*If 100 Joule of work must be done to move a charge of 4 C from a place, where potential is -10 Volt to another place where potential is 'V' volt, then V will be:* 1️⃣ 15 Volt 2️⃣ 20 Volt 3️⃣ 25 Volt 4️⃣ 100 Volt |
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Answer» tion:E = q× V100 J = 4 × (V-(-10)) V+10 = 100÷4 =25V + 10 = 25V = 15 VOLT |
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| 6. |
A constant force acts on an object of mass 5 kg for a duration of 2 s. It increases the object's velocity from 3 ms-1 to 7 ms. Find the magnitude of the applied force. Now, if the force was applied for a duration of 5 s, what would be the final velocity of the object? |
| Answer» GIVEN,mass=5kgt 1 =2sInitial VELOCITY u=3m/sFinal velocity v=7m/st 2 =5sSo,LET the Force be FLet the ACCELERATION be ASO, a= t(v−u) = 2(7−3) =2m/s 2 So the magnitude of the applied force is 10NAnd the final velocity after 5s is v So,v=u+atv=3+2×5v=13m/sThe final velocity after 5s is 13m/s | |
| 7. |
The unit vector parallel to resultant of the vectors A bar = 4i^+3j^+ 6k^and B bar =-i^+3j^ is |
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Answer» it's WRONG question EXPLANATION:PLEASE write right question |
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| 8. |
Why is ice cold?Answer please |
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Answer» now, ICE is colder than room temperature water. Because ice molecules MOVE slowly and cluster tightly together, they produce a relatively low amount of heat.In other words, ice absorbs heat from the water. As the water molecules LOSE energy, they begin to SLOW down, and consequently to cool._________________________ |
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| 10. |
Travelling with a constant acceleration, a body travels a distance of 36 m in the 6th second and a distance of 48 m in the gth second. Find the speed at the end of 7th second. |
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Answer» =12 at n=5s ⟹12=u+ 2 9a a=4m/s 2 and u=−6m/s Now we have to FIND velocity at t=5s we KNOW that v=u+at ⟹v=−6+(4×5)=14m/s now distance travelled in next 3s can be CALCULATED by S=ut+ 2 1 at 2 Note: now u=14m/s ⟹S=14×3+ 2 1 4(3 2 )=60m |
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| 11. |
if the flux changes at the same rate relative to a number of conductors of different material the induced emf in them will be? |
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| 12. |
What is the meaning of penetration???? |
| Answer» PENETRATION depth is a MEASURE of how deep light or any electromagnetic radiation can penetrate into a material. It is defined as the depth at which the intensity of the radiation inside the material falls to 1/e (about 37%) of its original value at (or more properly, just beneath) the surface. | |
| 13. |
A vectorA makes an angle of 240°with +ve axis its components along x-axis and y-axis arerespectively? |
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Answer» January 18, 1871 you are not the INTENDED recipient you are not the intended recipient PLEASE NOTIFY the SENDER immediately |
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| 14. |
find value of percentage error in measurement of potential difference if percentage error in measurement of resistance and current is 2% and 5% respectively, use relationV =IR. |
| Answer» 15 PLEASE MAKE me BRAINLIST | |
| 15. |
two particles with their masses in ratio 2:3 perform UCM with orbital radii in ratio 3:2.If centripetal force acting on them is same.The ratio of their speeds is.... |
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Answer» 3ratio2Explanation:3 RATIO 2 is the CORRECT ANSWER HOPE it help you |
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| 16. |
The electrostatic potential energy due to charged hollow spheres of R and charge q |
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Answer» how are you Be SAFE （＾ν＾） |
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| 17. |
Find value of percentage error in volume of a cube of size 10 cm with error in measurement of 2% in each side. |
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Answer» Using error analysis,(∆V/V)*100 = 2%V = a³and hence∆V/V = 3 ∆a/aTherefore.Error percentage in measurement of SIDE of the cube a is 1/3rd or that in VOr 2/3%Explanation:Mark as the brainliest ANSWER |
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| 19. |
a current of 4 ampere flows in a 5 ohm resistance. calculate the number of electrons flowing across any cross section of the conducting wire. |
| Answer» V = I R , V = 4×5 = 20 Volts. Q = NE , n = q/e = I t /e | |
| 20. |
The volume of the cell in six dimensional phase space is |
| Answer» UME of a cell in six dimensions phase SPACE is "66".Hope it helps u...Do mark as BRAINLIST.. | |
| 21. |
A uniform metre scale is balanced at 60 cm mark. If a weight of 20 gf is suspended at 10 cm mark and another weight of 80 gf is suspended at other end. Calculate the weight of the metre scale. |
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Answer» rm metre scale is BALANCED at 60 cm mark. If a WEIGHT of 20 gf is SUSPENDED at 10 cm mark and ANOTHER weight of 80 gf is suspended at other end. Calculate the weight of the metre scale. |
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| 22. |
if the volume of given mass of gas is double with out changing it's temperature the pressure of a gas is reduced to _________of the intial value |
| Answer» HI HELLO be my FRIEND PLZ YR | |
| 23. |
If the velocity of a body becomes four times its kinetic energy will become |
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Answer» from SUNLIGHT is CALLED PHOTOSYNTHESIS and stay home stay Safe and stay Alert from COVID 19 minutes see my points of the circle of the circle of the circle of the circle of the circle of the circle of the circle of the circle of the circle of the circle of the circle of the circle of the circle of the circle |
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| 24. |
A man weighs 100 kgf stands on a platform of dimensions 50cm*50cm. Find the amount of pressure that he exerts in Pa. (1kgf = 9.8N |
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Answer» -The PLATFORM is a SQUARE Side=50cmForce=100kgfConvert to NewtonWe KNOW |
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| 25. |
P-V diagram of a cyclic process ABCA is shown in the figure. The temperature of gas will be maximum at? |
| Answer» P EXPLANATION:because it is at GREAT HEIGHT than OTHERS | |
| 26. |
Differenciate this. |
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Answer» whatExplanation:what what what what |
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| 27. |
For what value of R the net resistance of the circuit will be 1812 m R. 100 1002 100 un w 100 W 100 B A 100 |
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| 28. |
Histones are (1) Rich in nucleic acid(2) Positively charged basic proteins(3) Negatively charged DNA polymers(4) Rich in purine bases |
| Answer» POSITIVELY CHARGED BASIC proteinsExplanation:MARK me BRAINLIEST | |
| 29. |
Under what circumstances the efficiency of carnot engine will be 100%.is it possible? |
| Answer» CARNOT's interesting result implies that 100% efficiency would be POSSIBLE only if TC = 0 K—that is, only if the cold RESERVOIR were at absolute zero, a practical and theoretical impossibilityExplanation: | |
| 30. |
The capacitance of two condenses in parellel is four times when they are connected in series. The ratio of the individual capacitance will be |
| Answer» L HOPE it will HELP U ☺️☺️☺️☺️ | |
| 31. |
HLW BUDDIES ANSWER THIS QUESTION Why does time seem to flow only in one direction? .NO SPAMING |
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Answer» At the velocity of light, if you were somehow to reach it, your MASS will be infinite and it will so require infinite force to push you, so no going beyond that SPEED. This is the reason TIME FLOWS in a single direction.Explanation:Mark me BRAINLIEST |
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| 32. |
Derive 3 equatn of motion by graphical mthod |
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Answer» they are all 3 equation of motion EXPLANATION:Hope this MAY HELP you mark me as a BRAINLIEST |
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| 33. |
Two forces whose magnitudes are in the ratio3:5 givea result ofof 35N.If the anglebetween them is 60', the magnitudeangleeachforce is? |
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Answer» 15N,25NExplanation:Using cosine law and ASSUMING the forces to be of magnitudes 3x and 5X,c= a 2 +b 2 +2abcosθ 35= 34X 2 +15x 2 THEREFORE x=35/7=5.Forces are thus equal to 15 N and 25 N. |
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| 34. |
A partical is moving in a circular path of radius r.The displacement aftet half a circle would be. |
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| 35. |
Explain how the image is formed by thin convex lens and derive 21 1 211 1 1 ( 1)R Rnu vé ù- += - + ê ú ë û |
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Answer» elium is the smallest element, and francium is the LARGEST. From top to bottom in a group, ORBITALS CORRESPONDING to higher values of the principal quantum NUMBER (n) are being added, which are on average further away from the nucleus, thus CAUSING the size of the atom to increase. |
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| 36. |
efine: (î) Viscosity (ii) Surface tension (Cha iii) Centre of gravity (iv) Couple (Chap Stare Newton's Second Law of Motion and deri (Chapter Describe briefly any four electromagnetic wa (Chapter itate Joule's law and derive equation W = ? Rt (Chapter Write down two differences between: ) N-type substances & P-type substances ( 0 Fundamental quantities and derived quan heir ranges. |
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Answer» tion:PHOTOSYNTHESIS is the process by which PLANTS use SUNLIGHT, water, and carbon dioxide to create oxygen and energy in the form of sugar.24-OCT-2019B HAR har har har har har har har har har vo bhi nhi hai kya hua tha to get a GREAT day for me to get❤ a great day for me to get a great |
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| 38. |
ध्वनी तरंग आणि पाण्यात उठणारे तरंग यात काय फरकआहे |
| Answer» GET the same SERIES for me to USE CHEMICAL FREE to | |
| 39. |
I am ready to show my peeniiss.. |
| Answer» PLS DONT POST IRREVELENT QUESTIONS | |
| 41. |
What is exploitation of energy |
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Answer» The exploitation of natural resources is the use of natural resources for economic growth, sometimes with a NEGATIVE connotation of accompanying ENVIRONMENTAL degradation. Today, about 80% of the world's ENERGY consumption is sustained by the extraction of fossil FUELS, which consists of oil, coal and natural gas. |
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| 42. |
Differentiate (4x^2-3)^2 w.r.t |
| Answer» HUH? I don't UNDERSTAND | |
| 43. |
At what temperature the speed of sound in air will be 1.5 times its value at 27degree in air |
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Answer» At what TEMPERATURE the speed of SOUND in AIR will be 1.5 times its VALUE at 27degree in air |
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| 44. |
Define electrovalent bond |
| Answer» IONIC bond, also called electrovalent bond, TYPE of linkage formed from the electrostatic attraction between oppositely charged ions in a chemical COMPOUND. Such a bond FORMS when the valence (outermost) ELECTRONS of one atom are transferred permanently to another atom. | |
| 46. |
A body is moving with uniform acceleration along a straight line the vectors associated with a body present in the same direction as velocity are |
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Answer» tion:A body is moving with uniform ACCELERATION along a straight line the VECTORS ASSOCIATED with a body present in the same DIRECTION as velocity are |
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| 47. |
What is the object of final saturan?don't spam |
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Answer» This was the first landing ever accomplished in the outer Solar System and the first landing on a moon other than Earth's Moon. At the END of its MISSION, the Cassini spacecraft executed its "Grand FINALE": a number of risky PASSES through the gaps between Saturn and Saturn's inner rings.Explanation:Have a good day |
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| 48. |
When a wave is produced on the water surface, the card pieces on the surface of water move about their means positions are B. Surface of the water A. Along with the wave c. Up and down D. All of them When a wave is produced on the water surface, the small card pieces placed on the Water surface A. Displaced forward from their original positions B. Displaced backward from their original positions C. Not displaced D. None of the above The motion of card pieces on the water surface about their mean positions is known as A. Lincar motion B. To and fro motion C. Random motion D. Vibratory motion If we examine the vibratory motion of all the card pieces placed on the water surface, it can be observed that they do A. Not vibrate together B. Vibrate together C. Move forward D. Move backward The disturbance produced in the water by a pencil is transferred by the wave produced in the direction A. Perpendicular to the wave B. Opposite to the wave C. Along with the wave D. All of these The up and down movement of a free end of a string generated a disturbance, which travels 1. Up and down the string C. In backward direction B. Perpendicular to string D. Along with the string |
| Answer» OPTION AEXPLANATION: | |
| 49. |
Which polymer has a N-terminal monomer and C-terminal monomer? 1. proteins2. polysaccharides3. nucleic acid4. both 1 and 2 |
| Answer» 2 Explanation:LITTLE CONFUSION is there but I HOPE it is CORRECT | |
| 50. |
Think of a stressfull situation. Now change a negative thought into a positive one. |
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Answer» Replacing the negative thought with the POSITIVE one every time you realize you are THINKING the negative thought. repeating your positive thought over and over to yourself, out loud whenever you get a chance and even SHARING them with another person if possible. writing them over and over.Explanation:mark me as BRAINLEST pleaseI hope you help this answer |
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