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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
1. Mind (ability, power) is one of the strongest and most useful powers youpossess2. Your mind mapping ability (declines, enhances) your brain functions.3. Lett brain controls all the muscles on the right-hand side of the body andthe (left, right) brain controls the left side. One hemisphere may be slightlydominant, as with left or right-handedness.139 |
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Answer» YEAH you are ABSOLUTELY RIGHT. |
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| 2. |
8- A girl of mass 35 kg site on trolley of mas 5kg.initial velocity of trolley is im/s Come to rest after travelling 16m.find work done on trolley.come to meet after thavelling 16 m(a) work done ou trolley(b) work done by girl |
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Answer» Answer: Given: Mass of girl = 35 kg Mass of TROLLEY = 5 kg Total mass, m = (35 + 5) = 40 kg u = 4 m/s v = 0 s = 16 m By equation, v 2 = u 2 + 2as 0 = (4)2 + 2a (16) 32a = –16 a = –0.5 m/s2 Force exerted on trolley, F = ma = 40 × 0.5 = 20 N
Work DONE on trolley W = FS = 20 N X 16 m = 320 J Work done by the girl, W = FS = mass of girl × retardation × S = 35 × 0.5 × 16 = 280 J |
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| 3. |
Guys...this may seems to be hard...bt no...it's not...I need to know the solution of only part:-(d) & (e)(a)The moment of inertia of a disc of radius 0.5 m about its geometric axis is 2kg-m2. If a string is tied toits circumference and a force of 10 Newton is applied, the value of torque with respect to this axis will be(1) 2.5 N-m21275 N-m(3) 10 N-m(4) 20 N-m(b)In the above question, if the disc executes rotatory motion, its angular acceleration will be :-(1) 2.5 rad/sec(2) 5 rad/sec(3) 10 rad/sec(4) 20 rad/sec(c)In the above question, the value of its angular velocity after 2 seconds will be :-(1) 2.5 rad/sec(2) 5 rad/sec(3) 10 rad/sec(4) 20 rad/sec(d)In the above question, the change in angular momentum of disc in first 2 seconds in Nm second will be(1) 2.5(2) 5(3) 10(4) 20(e)In the above question, angular displacement of the disc, in first two second will be in radian:-(1) 2.5(2) 5(3) 10(4) 20Plz guys...I just don't wanna copy it in my hw...I wanna learn how the correct answer came out...so plz explain your solution with proper formula and sign and don't spam...plzWould be very thankful to you...!!! |
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Answer» 1. ( d) (e) The angular displacement in the first 10 seconds is given by θ=ω 0
t+ 2 1
αt 2 = 2 1
(2.0rad/s 2 )(10S) 2 =100rad As the wheel turns by 2π radian in each revolution, the NUMBER of REVOLUTIONS in 10 s is n= 2π 100
=16. Explanation: I hope it helps you. Be happy |
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| 4. |
Explain formation of rainbow with the help of a diagram. |
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Answer» 12348584:_+_4:_:_)_:&:_:&:3:_:&:2;49=:&:2:(:=:3:(:_:#:#:3:(:=:$:=849= |
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| 5. |
consider the equation x=A sin (wt + pi/2) for a vibration object, where A is the amplitude. The Initial position of the object will be? |
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Answer» ......._________________ |
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| 6. |
Table-1Articles/ Activities (A)Articles Materials used30-40 years ago B)clay jarsArticles Materials usedToday (C)Containers for storing picklePacking food for a journeyWater pipes in the houseplastic tiffin boxesCopper vesselsSteel vesselsVessels for cooking foodFuels used to cook foodFuel used in a train engineLuggage for carrying clothesWater buckets, pailser storages in housesMetalturksPlastic bucketsFurniture (chairs, cots) |
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Answer» GOOD.................... |
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| 7. |
What are your insights or refelction to the "fully essential to social and human developmet |
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Answer» Answer: Self-reflection is an essential skill for personal GROWTH. ... There's an infinite capacity to self-reflect within us, and regular, consistent self-reflection with support can deepen your process of personal and spiritual growth and transformation.The more complex definition of human development is that it's a multi-disciplinary study of the psychological, biological, and sociological factors that impact people from infancy through ADOLESCENCE to adulthood.the human development approach FOCUSES on improving the lives people LEAD rather than ASSUMING that economic growth will lead, automatically, to greater opportunities for all. Income growth is an important means to development, rather than an end in itself. |
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| 8. |
acceleration of projection of a particle moving in a circle is related to the angular frequency w as? |
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Answer» Explanation: Uniform CIRCULAR MOTION is motion in a circle at constant speed. Centripetal acceleration →aC a → C is the acceleration a particle must have to follow a circular path. Centripetal acceleration always POINTS TOWARD the center of ROTATION and has magnitude aC=v2/r. a C = v 2 / r . |
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| 9. |
4. Find the current of an electrical circuit that has a voltage supply of 20 Volts and a resistanceof 42.5. A motor with an operating resistance of 5 2 is connected to a voltage source. The current,in the circuit is 3 A. What is the voltage of the source? |
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| 11. |
in the terms if media nad information literacy it is enough to be able to locate what a 21st century learner wants to locate true or false? |
Answer» Answer:in the terms if media nad information literacy it is enough to ab able to locate what a 21st century learner wants to locate true. |
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| 12. |
Greater the mechanical advantage of a machine, more effort is required to lift the load.(true/false) |
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Answer» True PLEASE mark me as Brainlist answer please Explanation: Answer: In an actual pulley due to friction, the MECHANICAL advantage is less than 1 (i.e. the EFFORT is more than the load). The reason for USING the pulley when its mechanical advantage is equal to 1 or less than 1 is that the pulley allows us to apply the effort downwards i.e. in a convenient direction. |
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| 13. |
Screws can be used to lift heavy objects.(True/False) |
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Answer» ════ ⋆★⋆ ════ |
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| 14. |
A block is hanging a string of mass 10kg calculate power generated by tension in the string in first 2second |
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Answer» Explanation: we see BODY moves upward direction hence, non-inertial frame so, USE concept of pseudo FORCE . we see body moves upward direction hence, non-inertial frame so, use concept of pseudo force .now F is force acting on object we see body moves upward direction hence, non-inertial frame so, use concept of pseudo force .now F is force acting on objectF=m(g+a) The above method is in the attachment |
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| 15. |
Two forces of magnituce P and ap act at apoint of body. The Square of resultantis four time the product of forces. Thenthe angle between them is. |
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Answer» Answer: 60 degree Explanation: MARK me as BRAINLISTS if it is CORRECT |
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| 16. |
A flag post has a movable pulley attached to it. (true/false) |
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Answer» TRUE....................... |
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| 17. |
1. A football and a stone are of the same size, the inertia is, A. Football is greater B. Football is lesser C. Stone is greater D. Stone is lesser *answers:-a. B and Cb. A and Cc. B and Dd. All of these |
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Answer» Answer: B and C Explanation: Inertia is the PROPERTY of mass. Mass of stone > mass of FOOTBALL. |
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| 18. |
What difference between empty ship and and loaded ship moving on the sea water ? |
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Answer» Answer: A loaded SHIP is going to sink into the water more, causing water to displaced. The EMPTY ship,if it's having a PROBLEM with tability, There's an option on sima vessel,also known as filing ballast tank's thus making it easier to remain stable Explanation: hope my answer can help you |
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| 19. |
The power consumed by a heater P = VI, where V = (220 ± 2) V and I = (10 ± 0.4) A. The percentage error in P is |
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| 20. |
Ii) If the magnetic flux passing through a coil of 100 turns ofwire increases by 15 weber in 2 second. Find the e.m.f.induced in the coil. An electric bulb is marked as 240 V-60W. What does it mean? |
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Answer» DECREASE in the FLUX = 0.005 - 0 = 0.005 Weber, no of turns = 100 turns time = 5 s e.m.f induced = N × rate of increase of MAGNETIC flux = 100 ×× 0.005 / 5 • • • e.m.f induced e = 0.1 v = 100 mv.. |
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| 21. |
1 ) how does eye lens change its focal length ?•••••••2 ) does eye lens form a real image or a virtual image ? |
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Answer» Answer: 1 . The change in CURVATURE of the eye lens changes the FOCAL length of the eyes. Hence, the change in focal length of an eye lens is caused by the action of ciliary muscles. 2 . The cornea and lens of an eye act together to FORM a real image on the light-sensing retina, which has its densest concentration of receptors in the fovea and a BLIND spot over the optic nerve. The power of the lens of an eye is adjustable to provide an image on the retina for varying object distances. hope it's helpful plz mark me as brain list |
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| 22. |
Do fluids possess weight? |
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Answer» SPECIFIC weight is DEFINED as the weight possessed by unit volume of a fluid. ... The specific weight of water is 9.81 × 1000 N.m-3. Explanation: i hope it is HELPFUL for you |
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| 23. |
How is gravitation different from gravity? |
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Answer» DIFFERENCE between GRAVITATION and GRAVITY, gravitation is the force occurring between two bodies WHEREAS gravity is the force occurring between the earth and a body. |
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| 24. |
Wһѧţ ıs pєrıoԀıc ʟѧw ? |
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Answer» Answer: The periodic law states “When elements are ARRANGED in order of INCREASING atomic NUMBER, there is a periodic REPETITION of their chemical and PHYSICAL properties.”Explanation: ⤵️Follow Me.... |
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| 25. |
Who formulated universal law of gravitation? |
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Answer» ISSAC NEWTON Explanation: |
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| 27. |
The volume of right circular cone is 9856cm³.If the radius of base 14 cm.find the----->1. height of cone2.Slant height |
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Answer»
The volume of right circular cone is 9856 cm³. If the radius of base 14 cm. Find the :Height of Cone Slant Height
The volume of right circular cone = 9856 cm³ Radius of Base = 14 cm
Height of Cone Slant Height
Height of Cone = 48 cm Slant Height of Cone = 50 cm
♣ First Let's Find Height of ConeVolume of Right Circular Cone = 9856 cm³ ⇒ 1/3πr²h = 9856 cm³ ⇒ 1/3 × π × r² × h = 9856 cm³ ⇒ 1/3 × 22/7 × r² × h = 9856 cm³ (∵ π = 22/7) ⇒ 22 × 1/7 × 3 × r² × h = 9856 cm³ ⇒ 22/21 × r² × h = 9856 cm³ ⇒ 22/21 × r² × h = 9856 cm³ (Given r = 14 cm) ⇒ 22/21 × (14 cm)² × h = 9856 cm³ ⇒ 22/21 × 196 cm² × h = 9856 cm³ ⇒ (22 × 196)/21 cm² × h = 9856 cm³ ⇒ 4312/21 cm² × h = 9856 cm³ ⇒ 616/3 cm² × h = 9856 cm³ Multiplying both sides by 3⇒ 3 × (616/3) cm² × h = 3 × 9856 cm³ ⇒ 616 cm² × h = 29568 cm³ Dividing both sides by 616 cm²⇒ (616 cm² × h)/616 cm² = 29568 cm³/616 cm² ⇒ h = 29568/616 cm ⇒ h = 48 cm ∴ Height of Cone = 48 cm _______________________________________ ♣ Now Let's Find Slant HeightSlant Height = √(r² + h²) ⇒ Slant Height = √[(14 cm)² + h²] (Given r = 14 cm) ⇒ Slant Height = √[196 cm² + h²] ⇒ Slant Height = √[196 cm² + (48 cm)²] (We FOUND : h = 48 cm) ⇒ Slant Height = √[196 cm² + 2304 cm²] ⇒ Slant Height = √[2500 cm²] ⇒ Slant Height = √[50² cm²] ⇒ Slant Height = √[50²] cm ⇒ Slant Height = 50 cm ∴ Slant Height of Cone = 50 cm ___________________________ Request :If there is any difficulty viewing this answer in APP, Kindly see this answer at Web (https://brainly.in/) for CLEAR steps and understanding. |
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| 28. |
2 A Current 14. 120 2 flows through an electrical device with resistance. ) Calculate the power of the device. ) Calculate the potential difference. |
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Answer» Answer: Name a device that helps to maintain a potential difference ACROSS a ... On what factors do the resistance of a CONDUCTOR DEPEND? ... What CHANGE will occur in the CURRENT through it |
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| 29. |
the heat energy required to raise the temperature of 8 grams of ice at - 10 degree centigrade to water at 60 degree centigrade with explanation |
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Answer» Answer: The SPECIFIC HEAT CAPACITY is the amount of heat required to raise 1 gram of a substance by 1 degree Celsius. For example, the specific heat of H2O(l) is 4.18 J/g ° C. Cp denotes the specific heat capacity for specific heat capacity at constant PRESSURE. |
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| 30. |
I) The equivalent resistance of n conducting wire each ofresistance of 4ohm connected is parallel arrangement will be |
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Answer» Each resistance is 4 ohm CONNECTED in parallel so that equivalent resistance by formula. 1/R =1/R1 +1/R2.=1/4 +/4 =2/4 =1/2 |
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| 31. |
A transformer operating at 240 v AC supplies 8 v to an electric bell, and 6000 windings on the primary coil of the transformer. |
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| 32. |
Four identical bulbs each rated 100W, 220V are connected across a battery as shown. The total electric power consumed by the bulbs is...... Explanation needed. |
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Answer» Answer: option c.300watt |
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| 33. |
240 v AC ൽ പ്രവർത്തിക്കുന്ന ഒരു ട്രാൻസ്ഫോർമർ ഒരു ഇലക്ട്രിക് ബെല്ലിന് 8 v നൽകുന്നു, ട്രാൻസ്ഫോർമറിന്റെ പ്രൈമറി കോയിലിൽ 6000 ചുറ്റുകളുണ്ട്. |
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Answer» I can't understnd this LANGUAGE please write it in ENGLISH ..... |
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| 35. |
HNO,?3. What are the products obtained by decomposition of nitric acid?Write the balanced equation.ble |
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| 36. |
Fill in the blanks to produce a correct answer.11. W_u_d- it is a skin cut or broken, typically open or closed.12. _r_ct_r_- it is a medical term for a broken bone.13. Sh_C_- it is a condition where in the body is not getting enough blood flow which can be life-threatening.14. B__n- it refers to an injury that gives a feeling of discomfort caused by exposure to heat, flame, chemicalagents, radiation, or electricity.15. P_i_- it refers to a physical suffering or discomfort caused by illness or injury.16. hok- it is the inability to breathe because the trachea is blocked, constricted, or obstructed.17. In_u_Y- it refers to harm or damage to the body due to accidents, falls, hits or weapons.18. Pu_s_- it refers to a tactile arterial palpitation of the heartbeat.19. _ain- it refers to a condition wherein a person loses its consciousness for a short period of time.20. _ uts- it is a wound caused by a tear or a deep cut in the flesh or skin. |
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| 37. |
an ideal gas of volume 1 litre at pressure 8 Pa at 27°C undergoes expansion until its pressure drops to 1 Pa. Calculate the final volume and also work done if it is done a)slowly )suddenly. |
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Answer» Answer: When an ideal gas is compressed ADIABATICALLY \left(Q=0\right), work is done on it and its temperature increases; in an adiabatic expansion, the gas does work and its temperature drops. Adiabatic compressions actually occur in the cylinders of a car, where the compressions of the gas-air mixture take place so QUICKLY that there is no time for the mixture to exchange heat with its environment. Nevertheless, because work is done on the mixture during the compression, its temperature does rise significantly. In fact, the temperature increases can be so large that the mixture can explode without the addition of a spark. Such explosions, since they are not timed, make a car run poorly—it USUALLY “knocks.” Because ignition temperature rises with the octane of gasoline, ONE way to overcome this PROBLEM is to use a higher-octane gasoline. Explanation: |
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| 38. |
14. In the figure M = 4M. The pulleys are smooth and light. At time t = 0, the system is at rest. Ifsystem is released, the acceleation of mass M, is |
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Answer» Answer: g/4 Explanation: Once the structure of the mass m1 is raised up to the length X, the chain for the VALUE M2 is freed up to the length 2x. (m1 = a, m2 =2a) The force calculation for m1 would be Calculation 1: m1g=2T=m1a Calculation 2: T-m2g=2m2a Utilizing m1=4m2, it would be g/4. |
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| 39. |
How much steam at 1000C is to be passed into water of mass 100gm at 200C toraise its temperature by 50 C? (Latent heat of steam is 540 ca/gm and specific heat of water is 1 cal/gmc06) |
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Answer» Answer: 100 G at 20° C to raise its temperature 5° C? (Latent heat of STEAM is 540 cal/g and SPECIFIC heat of water is 1 cal/g° C). 2. |
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| 40. |
array of light is incident on the internal surface of separating Crown glass and water given that refractive index for Crown glass and water with respect to air are 1.52 and 1.33 respectively draw the ray diagram showing the phenomenon of refraction taking place in the Ray of light is going from ground glass to the water also marked the angle of incidence and angle of refraction pls give the diagram |
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Answer» Answer: |
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| 41. |
8.A ring of mass M and radius R is rolling withoutslipping, the velocity of point A as shown in thefigure is[NCERT Pg. 173]0VcmRA(1) Vam(2) 2Vom(4) √2 vom(3) Zero |
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Answer» Answer: 2 2vom Explanation: 2 vom mark as Brainliest follow me |
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| 42. |
Classification of solid based on different binding forces . |
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Answer» Answer: Classification of Crystalline SOLIDS based on Different BINDING FORCES. Crystalline solids can be classified into different categories depending UPON the type of constituent particles and the nature of ATTRACTIVE forces operating between them. |
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| 43. |
Why are colours of lights called additive colours? |
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Answer» Answer: Additive color mixing is what happens when LIGHTS of DIFFERENT WAVELENGTHS are mixed. When we ADD all of the different wavelengths of sunlight, we see white light RATHER than many individual colors. It is called additive because all of the wavelengths still reach our eyes. |
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| 44. |
A rocket ship is 100 m length |
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Answer» دور کا متضاد کیا ہے؟ 1 point نزدیک آس پاس |
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| 45. |
When the steel rod is being quenched, the temperature of the water rises to 50 °C.After a few hours the water cools down to room temperature.Some of the cooling of the water is due to evaporation.Explain in terms of particles how evaporation causes the cooling of water. |
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Answer» Answer: Explanation: By breaking their liquid bonds, they EVAPORATE becoming a gas. ... When a hotter particle NEAR the SURFACE of the liquid 'breaks free' from it's liquid bonds, it escapes as a gas, carrying away energy from the rest of the liquid. The average energy of the liquid THEREFORE decreases - in other WORDS, the liquid cools down. |
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| 46. |
Plz answer the second part of this question with solution its urgent |
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Answer» Answer: we have to FIND using formula :- Area = ½ × BASE × height according to the figure :- → the distance covered by ABF : = (area of covered by triangle ABF ) → the distance covered by BCEF : = (area of trapezium BCEF ) The distance covered in the region ABE (we have to MULTIPLE both areas for getting Distance covered by ABE region ) see the ADJOINING attachment : hope it helps to u |
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| 47. |
Quenching’ is a process used to change the properties of steel by cooling it rapidly.The steel is heated to a very high temperature and then placed in a container of cold water.(i) A metalworker quenches a steel rod by heating it to a temperature of 900 °C beforeplacing it in cold water. The mass of the steel rod is 20 kg.The final temperature of the rod and water is 50 °C.Calculate the energy transferred from the steel rod to the water.Specific heat capacity of steel = 420 J / kg °C.Use the correct equation from the Physics Equations Sheet..............................................................................................................................................................................................................................................................................................................................................Energy transferred = ........................................ J(3)(ii) The temperature of the steel rod eventually returns to room temperature.Compare the movement and energies of the particles in the steel rod and in the air atroom temperature.only 2nd question needs to be answered but first part provided for context |
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Answer» Answer: when the STEEL ROD is ROOM temperature, no heat will move between the room and the steel rod, but the steel rod and the room will STILL radiate infared radiation. |
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| 48. |
Calculate the resistance of a 1km length, 1mm diameter wire made from:a) constantan (ρ = 4.9 × 10-7 Ωm) b) copper (ρ = 1.7 × 10-8 Ωm)c) State which material is better suited for being used to make resistors, and justify your answer.i only need c part could any one help me please? |
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Answer» yes Explanation: szdklfbnsdjkbf jksdhbg hffds jkgndfjkghjkdfghjklfsdhgjikfdh gjkldfhjjgkh DFK jghdfkjg hdfkj ghksdfl gklfdhlhjkg hkldf gldf |
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| 49. |
Plz answer the first part of the question its urgent |
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Answer» ( A)15. Explanation: |
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| 50. |
if you use different reference points to describe the position of the same object, how will your descriptions differ |
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Answer» lhcoyditditxiyxiy F uofoyf0u Explanation: ddoigxjjclzf |
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