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. |
Define air pressure |
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Answer» tion:the FORCE exerted by air, whether COMPRESSED or UNCONFINED, on any surface in contact with it |
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| 2. |
Examples of distance and displacement |
| Answer» DISTANCE is when you MOVE in a STRAIGHT road.displacement is when you move in a CIRCULAR road.Hope this HELPS!!! | |
| 3. |
What is the dimension of diffussion constant |
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Answer» D is the diffusion coefficient or diffusivity. Its dimension is area PER unit time, so typical units for expressing it WOULD be m2/s. φ (for ideal mixtures) is the concentration, of which the dimension is AMOUNT of substance per unit volume. It might be EXPRESSED in units of mol/m3. |
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| 4. |
A silk cloth gains electrons when rubbed over a glass rod. A different glass rod gains electrons when rubbed with rabbit fur. What will happen if the two charged glass rods approach one another and why? |
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Answer» then TWO CHARGED GLASS attract to each other .. simillary in case of hair rub on COMB...... |
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| 5. |
Make a ppt on the change in lifestyle, health care, economy, technology and environment which is being affected by pandemic in our lives Changes in the lifestyle before and after |
| Answer» AKE in Microsoft PowerPoint......PLZ MARK me as BRAINALIST | |
| 6. |
Check whether the following equation is dimensionally correct or not 1/2mv²=mgh |
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Answer» uare=mgh CORRECT |
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| 7. |
The positions of a body at different times are recorded in the table given below: Time(s) 0 1 2 3 4 5 6 7 8 Displacemet (m) 0 6 12 18 24 30 36 42 48 (a) Draw displacement time graph from the following data. (b) What does the slope of graph give? (c) Calculate the speed of the motion. |
| Answer» PLEASE MARK ME as A BRAINLIST PLZ EXPLANATION:PLEASE PLEASE please | |
| 8. |
Meaning of fluid pressure??? |
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Answer» tion:Fluid pressure is a measurement of the FORCE per unit area on a object in the fluid or on the surface of a closed container. This pressure can be caused by gravity, acceleration, or by FORCES OUTSIDE a closed container. SINCE a fluid has no definite SHAPE, its pressure applies in all directions.. |
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| 9. |
Define the term pressure and state it's si unit?¿????????¿?????¿??? |
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Answer» Pressure—the effect of a FORCE APPLIED to a surface—is a derived UNIT, obtained from combining base units. The unit of pressure in the SI SYSTEM is the pascal (Pa) is the si unit of pressure |
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| 10. |
Please tell some short points for liquids please tell the answer |
| Answer» TION:liquid are fluid it can flow liquid have definite shape and volume OK FRIEND it takes the shape of container OK friend this is URS ANSWER | |
| 11. |
STATE THE EQUIVALENT RESISTANCE.ANSWER FAST PLEASE |
| Answer» N REFER to the ATTACHMENT | |
| 12. |
What happens . when multiple forces are applied in same direction and in opposite direction explain with example. |
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Answer» If two or multiple forces ACT on an object in same or different directions, then the effect on the body will be due to the magnitude and direction of the net FORCE ACTING on it. Thus, the body will MOVE in the direction of the resultant force.Hope it helps you!!!!!Mark it as Brainliest ANSWER!!!!! |
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| 13. |
If a wire of resistance R is cut into 'n' equal parts. All the parts are first connected in series and then in parallel. Calculate the ratio of series andparallel combination of the resistors |
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Answer» cut into n equal parts. Since all dimensions are same for pieces, Resistance of each WIRE is equal and has a value = R/n.Resistance is proportional to length of wire and INVERSELY proportional to area of cross-section. IF length is 1/nth, then Resistance is also 1/n TH of ORIGINAL value.When these five are connected in parallel COMBINATION, then net resistance becomes 1/nth again. So R1 = R/n * 1/n = R/n^2 |
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| 14. |
STATE THE EQUIVALENT RESISTANCE . |
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Answer» R3 and R2 are in parallel hence50 X 30/ 50+ 30 = 18.75And that equivalent RESISTANCE is SERIES with R1 and R4So total equivalent resistance is 18.75 + 20+ 20= 58.75 ohmExplanation: |
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| 15. |
What areare the thingsthat can be specifiedwing syntax of a programming language |
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Answer» uter science, the syntax of a COMPUTER language is the set of rules that defines the combinations of SYMBOLS that are considered to be a CORRECTLY structured document or fragment in that language.[1] This applies both to programming LANGUAGES, where the document REPRESENTS source code, and to markup languages, where the document represents data. |
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| 16. |
What is narvous system |
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Answer» s system. the system formed chiefly of neurones in animal body which receives extremely and respond to that a ADJUST the body with the environment and its control and CORRELATE function of other system in the body is called nervous systemExplanation:HOPE help you DEAR FRIEND please mark my answer as brainilist |
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| 17. |
The positions of a body at different times are recorded in the table given below: Time(s) 0 1 2 3 4 5 6 7 8 Displacemet (m) 0 6 12 18 24 30 36 42 48 (a) Draw displacement time graph from the following data. (b) What does the slope of the graph give? (c) Calculate the speed of the motion. |
| Answer» B) is ANSWER HOPE I am RIGHT | |
| 18. |
given that a communication satellite of 2400kg is placed in a geostationary orbit at a distance of 4.23×10^7m from the centre of the health , calculate a.the angular velocity of the satellite b. the speed of the satellite c. the acceleration of the satellite and d. the force of attraction between the earth and the satellite .....take G=6.6×10^_11 M= 6.0×10^24kg and g=9.80m/s2 |
| Answer» TU kdueuuryt HU KI BABA ki JAI ho gaya hai agar nahi hai agar nahi | |
| 19. |
Please provide answer to the above question ..PLZ DON'T SPAM |
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Answer» _______________________________ |
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| 20. |
20 example of uniform and non-uniform motion we observed in our daily lives |
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Answer» Motions:-1.The hour hand of a clock - It moves with uniform speed, completing movement of a SPECIFIC distance in an hour2.A car going along a straight level road at steady speed 3.An aircraft cruising at a level height and a steady speed 4.A ship steaming on a straight course at steady speed 5.A train going along the tracks at steady speed 6.A cooling fan running at a fixed speed 7.Earth moving round the sun is an uniform motion8. Movement of fan9. A pendulum having equal amplitudes on both sides10. A vibrating spring in a sewing machine11. Rain drops fall at uniform speed as buoyant forces balances 'g'Non uniform Motions:-1. A horse running in a race2. A BUS on its WAY through the market3. A bouncing ball4. Movement of an asteroid5. Aircraft moving through the clouds and then landing6. Dragging a box from a path7. A man running a 100 m race8. A car COMING to a halt9. A train coming to its terminating sop10. A car COLLIDING with another carIn the above motions, the speed of varying |
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| 21. |
Can wash hands with water alone save us from disease yes or no |
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Answer» IF STAYING AT HOME , THEN YES WE COULD BE PROTECTED IF WE WASH OUR HANDS WITH SOAP AND WATER FOR 20 SECONDS EVERY HALF AN HOUR , BUT IF SAME WE SHALL DO BEING OUT FROM OUR HOUSE ,WE ARE NOT TOTALLY PROTECTED WE CAN BE PROTECTED IF WE WEAR A MASK AND AVOID CROWDY PLACES BEING OUT. THANKS |
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| 22. |
A ball of mass 400 gram is thrown at a speed of 2m/s determine its kinetic energy |
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| 23. |
Calculate the wavelength of photon of energy 10^10ev |
| Answer» SEE the attachmentExplanation:HOPE the ANSWER will HELP you | |
| 24. |
The initial temperature of a gas is 300 K. Calculate the rise in temperature when the gas is compressed suddenly to 8 times its original pressure (γ=1.5) |
| Answer» 288 kExplanation: HOPE it HELPS you | |
| 25. |
Resistance of 50W bulb is greater than that of 100W bulb Reason resistance in inversee proportion to power |
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Answer» istance of a CURRENT CARRYING conductor is inversely proportional to the area of cross section of the conductor. Th reason is because the resistance occurs due to the collision of ELECTRONS/charged particles. When area of cross section of the conductor increases, the gap between electrons increases.Power is not a direct function of resistance. It is a function of (that is, it VARIES with) Voltage and Current. Resistance comes into the picture only because of Ohm's law. P is inversely proportional to R as voltage is constant in the CIRCUIT. |
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| 26. |
I. The gravitational unit of the force- a.Gravitational force ii. Touchless force- b.Vector quantity iii. Velocity- c. Acquired unit iv. Deceleration- d. Kg-weight Matching list |
| Answer» TION:TOUCHLESS FORCE GRAVITATIONAL force | |
| 27. |
Slove in detail, all Questions explain properly please |
| Answer» TRY this on instasolv it will WORK faster and trust me no ONE's gonna to SOLVE this all ...HOPE IT OPENS YOUR MIND uhk you thanked me I'll solve all this tommorow morningjust remind me | |
| 28. |
Define the following:speed |
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Answer» tion:SPEED is the distance traveled PER unit of time. It is how FAST an OBJECT is moving. Speed is the scalar quantity that is the MAGNITUDE of the velocity vector. ... Lower speed means it is moving slower. |
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| 29. |
Why iron is havier than wood for the same volume? |
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Answer» in iron there is more molecules than WOOD in same VOLUME. More molecules MEANS more MASS, that's why iron is much HEAVIER than wood for same volume. |
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| 30. |
Please solve this one |
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Answer» It's QUITE an EASY qExplanation:U(initial acceleration)=v-u/t =16-0/2 =8m/s squareDistance=AREA of v-t GRAPH =Area of trapezium = (12+8/2)(16) =160M |
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| 31. |
Goliye darpan ke liye sidh kare ki f=r/2hindi solutions |
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Answer» tion:N i got FREE points THANKS for points I'll CHECK for answer if I get ILL answer |
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| 32. |
Two fixed charge 4q and 2q are saparated by a distance X where should the 3rd charge q be placed for it to be equilibrium.? |
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Answer» ixed charges 4Q and 2Q are separated by a distance x. Where should THIRD point CHARGE q to b placed for it to be in EQUILIBRIUM ??? LET the charge q is placed at at a distance x' from the charge 4Q. SO, According to the problem force on q by both the charges are same.mark as branliest answer |
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| 33. |
if there's distance of 12.37 cm between a and b and 14.93 cm distance between a and o and of a point c reaches point c from point o through point a then find the distance and displacement |
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| 34. |
10-1011T-s5 9 31020.7143rx and y =ver5 |
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Answer» qhjath jkbkfhdkfkfjdjfkfjdkfkdifkfjshfkcjdjckxhdkfhsufyaydkxgeo |
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| 35. |
What is erractic motion |
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Answer» body MOVES AROUND a body in a STRANGE manner than the MOTION is called erratic for example motion of comets around the planets |
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| 36. |
Q2 What is the effects of force . explain with examples? |
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Answer» tion:Effects of FORCE. A force acting on an object causes the object to CHANGE its shape or size, to START moving, to STOP moving, to accelerate or decelerate. When there's the interaction between two objects they exert a force on each other, these exerted forces are equal in size but opposite in direction. |
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| 37. |
A car is initially going towards N with 5m/s .In 5sec it's velocity is 5 m/s in West . Find acceleration of the car |
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Answer» See the ATTACHMENT EXPLANATION:Mark me as BRAINLIST if you GET this |
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| 38. |
Plot the distance - time graph and velocity - time graph for uniform and non-uniform motion . Mention the physical quantities that can be obtained from the two graph. |
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Answer» gujohudj and press if it to GET a few groceries in bh47&7#&9; and nite ebeivyh ri h |
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| 39. |
a cooling fan is turned off when it is running at 850rev/min. it turns 1250revolution before it comes to a stop . what was the fan angular acceleration, assume constant ...How long did it take the fan to come to a complete stop |
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Answer» cooling fan is turned off when it is running at 850rev/min. It turns 1250 revolution before it COMES to a STOP. To find:What was the fan angular acceleration, ASSUME constant ...How long did it TAKE the fan to come to a complete stopSolution:From given, we have,wi = 850 rev/min= 850 rev/min × 2π rad/1 rev × 1 min/60 s∴ wi = 89.012 rad/swf = 0 rad/sΔθ = 1250 rev= 1250 rev × 2π rad/1 rev∴ Δθ = 7853.975 radWhat was the fan's angular acceleration, assumed constant?wf² = wi² + 2αΔθ α = (wf² - wi²)/2Δθ= (0² - 89.012²)/(2 × 7853.975) = -0.504 rad/s²∴ The angular acceleration α = -0.504 rad/s²How long did it take the fan to come to a complete stop?wf = wi + αtt = (wf - wi)/α= (0 - 89.012)/(-0.504)= 176.61 s∴ The time taken by the fan to come to a complete stop t = 176.61 s |
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| 40. |
Answer these .... !!! |
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Answer» y WELCOME to the CONCEPT of the KINEMATICS |
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| 41. |
What is the difference between litmus paper and litmus test |
| Answer» TION:Litmus paper is a pass or FAIL TYPE of test that DETERMINES if a substance is acidic or basic whereas pH strips determine the pH VALUE. ... The pH strips determine the pH value whereas Litmus paper only indicates if the substance is acidic or basic (alkaline).... | |
| 42. |
A disk, with a radius of 0.25m, is to be rotated like a merry-go-round through 800rad, starting from rest, gaining angular speed at the constant rate α1 through the first 400rad and then losing angular speed at the constant rate −α1 until it is again at rest. The magnitude of the centripetal acceleration of any portion of the disk is not to exceed 400m/s^2. (a) What is the least time required for the rotation? |
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| 43. |
Expect plant why can't the living organisms prepare their food using can water and mineral |
| Answer» EXPLANATION:PLANTS have CHLOROPHYLL which helps in trapping solar energy which helps in FOOD preparation.Humans DONT have chlorophyll. | |
| 44. |
What happened to the resistance as the conductor is made thick? |
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Answer» the resistance decreasesExplanation:as the CONDUCTOR is MADE THICK there is more area through which the CHARGE can flow through the conductor. |
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| 45. |
We want to reduce friction in order to increase dash |
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Answer» tion:You know that friction produces heat. That's why rubbing your hands together makes them warmer. But do you know why? Friction causes the molecules on rubbing SURFACES to move faster, so they have more energy. This gives them a higher temperature, and they FEEL warmer. Heat from friction can be useful. It not only warms your hands. It also LETS you light a match as shown in the Figure below. On the other hand, heat from friction between moving parts inside a car ENGINE can be a big problem. It can cause the car to overheat.How is friction reduced between the moving parts inside a car engine?To reduce friction, oil is added to the engine. The oil coats the surfaces of the moving parts and makes them slippery. They SLIDE over each other more easily, so there is less friction. |
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| 46. |
Define resistivity |
| Answer» RESISTIVITY is the OBSTRUCTION OFFERED by a conductor to the flow of electrons. | |
| 47. |
A body starts from rest. what can be interpreted by this statement? |
| Answer» EXPLANATION:A BODY STARTS from rest then it means it's initial VELOCITY is 0. | |
| 48. |
Explain special theory of relativity |
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Answer» ❤➡The theory of special RELATIVITY explains how space and time are linked for objects that are moving at a consistent speed in a straight line. ... The theory of special relativity was DEVELOPED by ALBERT Einstein in 1905, and it forms part of the basis of modern PHYSICS...... |
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| 49. |
The length and breadth of a metal sheet are 3.124 m and 300.2 cm respectively. The area of the sheet correct to the significant digits will be |
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| 50. |
A train is moving with a velocity of 90 kmh-1 .It is brought to stop by applying the brakes which produces a retardation of 0.5 ms-2. Find:a) The velocity after 10 s.b) The time taken by train to come to rest. |
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Answer» train is moving with a velocity of 90 kmh-1.It is brought to stop by applying the BRAKES which produces a RETARDATION of 0.5 ms-2To FINDA) The velocity after 10 s.b) The time taken by train to come to rest.SolutionInitial velocity = 90km/hAcceleration = -0.5 m/s²Velocity after 10s = ?→ u = 90m/s → u = 90 × 5/18 → u = 25m/sAccording to the first equation of motion→ v = u + at→ v = 25 + (-0.5) × 10→ v = 25 - 5→ v = 20m/sVelocity after 10s is 20m/sTotal taken to come in rest = ?Final velocity = 0 {brakes applied}→ v = u + at→ 0 = 25 + (-0.5) × t→ - 25 = -0.5t→ t = 25/0.5 = 50sTime taken to come in rest is 50sNote : (-) MINUS shows retardation |
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