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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. |
a volleyball droped from rest 1.00m above the floor rebounds to a height of 0.67m . Assuming the ball is not moving horizontly, calculate the velocity just before it hits the floor on the way down |
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Answer» GOOD evening FRIENDS please Follow me and I will follow U back |
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| 3. |
7. Unit of calorific value of a substance isa. kcalb. calorieC. KJ/gd. Jkg-3 |
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Answer» ..........;. |
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| 4. |
In this vLab you used a complex machine to launch a projectile with the ultimate goal of hitting a target. Assume you built a really big machine that could launch the projectile a “significant” distance; for instance, several hundred miles. Write a brief essay discussing the issues that would need to be accounted for with a projectile with that type of range. Be sure to include how those issues affect the range of the projectile. |
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| 5. |
Gravitation, gravitational force ,gravity ,and force of gravitation in sabhi me kya difference hai?? |
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Answer» Answer: GRAVITATION, gravity is the PHENOMENON DUE to which EVERY body is ATTRACTED to every other body by a certain force depending on the distance between then and their mass. Gravitational force and force of gravity is that force. Hope this helps Peace ✌️✌️ |
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| 6. |
Which device have higher internal resistance |
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Answer» Explanation: Alkaline, carbon-zinc and most primary batteries have a relatively high internal resistance, and this LIMITS their USE to low-current applications such as FLASHLIGHTS, remote CONTROLS, portable entertainment devices and kitchen clocks. As these batteries DEPLETE, the resistance increases further. |
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| 7. |
The sundial is a device for measuring |
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Answer» its a DEVICE used to MEASURE TIME . its a device used to measure time with the help of sun's POSITION during day time used in earlier times |
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| 8. |
12. Unscramble the jumbled wordsa) CESIDLAPNEMTb) DEPNUUMLc) CILOSLTONIAd) DOMEETRPSPEEe) ORDOTEME |
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Answer» a) DISPLACEMENT b)PENDULUM c)OSCILLATION d)- e)ODOMETER i tried my BEST.. pl mark as brainliest Explanation: |
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| 9. |
The basic unit of speed is |
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Answer» Answer: The SI unit of speed is the metre per second, but the most common unit of speed in everyday usage is the KILOMETRE per HOUR or, in the US and the UK, miles per hour. For air and marine travel the knot is commonly used. SI unit: m/s, m s−1 Common symbols: v Dimension: L T−1 |
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| 10. |
your shopping cart has a mass of 65 kg. In order to accelerate the shopping cart down an aisle at 0.3 m/sec2 What force would you need to use our applied to the cart |
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| 11. |
How much work is done in moving a charge of 2 C from a point of 118V to a point of 128V? |
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Answer» Answer: The mount off charge moved = 5 C. Therefore, Work done = Potential DIFFERENCE * Charge moved. That is, 10 * 5 = 50 JOULES. |
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| 12. |
The work done by a force acting on a body is maximum when |
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| 13. |
9. In dark field microscope, for good visibilitytype of object slides and coverslips areused instead of glass,(1 Point)Options.QuartzCrystalSparklerGemstone |
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Answer» Answer: The best specimens for dark field are those that have refractive objects scattered about with EMPTY space between them. No dark field occurs if objects are too crowded or if a THICK SOLID specimen TURNS light into the microscope. |
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| 14. |
Explain the following water pipe in cold countries of 10 breast in winter |
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Answer» idddddddddkkkkkkkkk |
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| 15. |
MATCH THE FOLLOWING:-1. Certain observation and certain causes are listed in columns I and II respectively in this following. Column 1A. First law of Motion B. Second law of MotionC. Third law of MotionD. ImpulseColumn 21. Change in linear momentum2. Action and reaction3. Law of inertia4. F=ma |
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Answer» Answer: The answer to this question is as follows:- A 3 B 4 C 2 D 1 |
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| 16. |
सिद्ध कीजिए की h ऊंचे द्रव्य स्तंभ का दाब p = hdg जहां d = द्रव्य का घनत्व तथा g = गुरुत्वीय त्वरण |
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Answer» hohhshejflgidudkckfidkct the SOI ਨਸ਼ਕਫੋਗੋ ਗਾਈਦ ਜਦਕਰਕਫ ਔਫਲਫ਼ਖ਼ਫ਼ਲਵ nxjxkxo ਜਿੱਕਗਲਫ਼ਖ਼ਫ਼ ਵਲਫਲਫਲਫਲਫਾਲ Explanation: ਹੱਗ ਰੱਗੂ ਵਘ ਬੱਭ ਬੱਬ ਵੱਵਗ ਵਵੱਵ ਬ੍ਬੱਬੱਬ ਬੀਬੀਬੀਬੀਬੀ |
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| 17. |
Summary on Newton's second law of motion |
Answer» Newton's SECOND law states that the acceleration of an object is DIRECTLY related to the net force and INVERSELY related to its mass. Acceleration of an object DEPENDS on two THINGS, force and mass.HOPE IT HELPS ☺ |
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| 18. |
Define ohms law................. |
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Answer» Ohm's Law is a FORMULA used to calculate the relationship between VOLTAGE, current and resistance in an electrical CIRCUIT |
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| 19. |
Explain effect of temperature and impurities on surface tension |
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Answer» Answer: In general, surface TENSION DECREASES when temperature INCREASES because cohesive forces decrease with an INCREASE of molecular thermal activity. ... The surface tension of water, for example, will increase when highly soluble impurities are added to it. |
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| 20. |
A particle hits the ground with a velocity of 50m/s. If the coefficient of restitution is 0.6, thevelocity of rebound is ---- m/s.OptionsO 300 20O 1012Clear Response |
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Answer» SMSNSMSKJDIW E znnsnsndjdkdkdldlsks |
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| 21. |
A reaction in which an insoluble substance is formed also write balanced chemical reaction |
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Answer» PRECIPITATION reaction Explanation: |
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| 22. |
4.The tissue present between xylem and phloem is called _________________ .conjunctive tissuecollateral tissuebicollateral tissuepermanent tissue |
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| 23. |
The motion of an object in which an object moves irregularly or haphazardly or disorderly with no preferred direction is called ... |
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| 24. |
Derive the expression for the time period of oscillation of springT=2pi root m/k. where T is time period, m is mass of the body and k is force constant. |
Answer» springT=2pi root m/k. where T is TIME period, m is MASS of ... is time period, m is mass of the BODY and k is force constant. |
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| 25. |
2.) The moment of inentia of a uniform solid sphereabout a diameter is 2 kgm? What is its momentof inertia about a tangent? |
Answer» Given :-MOMENT of inertia about DIAMETER = 2kgm so, moment of inertia Along Tengent = ? Answer is in attachment ⚕️ NONEXISTENT⚕️ |
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| 26. |
To convert an ammeter into a voltmeter one must have? |
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Answer» SERIES RESISTANCE..... HOPE it HELPS you |
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| 27. |
if curie temperature of a ferromagnetic material is 727℃,then what will be the order of magnitude of exchange integral? |
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Answer» please like and subscribe my new CHANNEL bro ACT GAMING channel on youtube please |
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| 28. |
Look at the activities listed below. Reason out whether or not work is done in the light of your understanding of the term ‘work’ (i) Suma is swimming in a pond. (ii) A donkey is carrying a load on its back. (iii) A wind-mill is filling water from a well. (iv) A green plant is carrying out photosynthesis. (v) An engine is pulling a train. (vi)Food grains are getting dried in the sun. |
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Answer» 4 is the answer for the QUESTION |
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| 29. |
Distinguish between work, energy and power. State the SI units for each of these quantities. with slove3 pointsYour answer |
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Answer» Answer: Work is defined as a force causing the movement or DISPLACEMENT of an object. The SI unit of work is the joule (J) POWER is the RATE at which work is DONE or energy is transferred in a unit of time. The SI unit of power is Watts(W) Energy is defined as the ability to do work hope it will help |
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| 30. |
7(i) The substance B shows which of the following properties?(I) It is the strongest base among the given substance(II) It is used in antacid(III) Ot turns litmus paper to blue(IV)None of the above(a) (I) (II)(b) (II), (III)(c) (I),(II) and (III)(d) (IV)7(ii) The substance D shows which properties?(a) It can be used as baking soda(b) It is used in fire extinguisher(c) It turns red litmus paper to blue(d) All the above7 (ii) Arrange the substances in increasing order of their acidic strength(A,C and E)(a) C |
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| 31. |
The wavelength associated with ball of mass 33.15kg moving with velocity 2000m/s is |
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Answer» MARK me as a brainlest Explanation: |
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| 32. |
An apple of mass 100 gm was shot horizontally by an arrow of mass 50 gm. It touches the fruit with avelocity of 10 ms–1 and penetrates into it and finally detaches the fruit. What is the horizontal velocity ofthe fruit just after it gets detached? pls help fast |
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Answer» vnhg bhtetyu trryyyt the CLASS and CHAT with him in CIRCLES in the DP itrfdor |
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| 33. |
which of the is used to make pressure cooker? a.Brass b.Duralumin c.Bronze d.Nickelsteel |
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Answer» Answer: for my OPINION it's brass Explanation: |
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| 34. |
9. A wire of length 1m and diameter 10-2 m is fixed at one end and twisted at the other end through an angle of 70˚ by applying a couple of value 0.01 Nm. Evaluate the rigidity modulus of the wire. |
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Answer» Given: l = 1m diameter = angle = 70° value of COUPLE = 0.01Nm To FIND: RIGIDITY Modulus Solution: Φ ≈ tanΦ = ≈ ≈ ≈ 0.18° |
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| 35. |
Solution ofdav book of science class 8 of chapter 10 physics |
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Answer» Explanation: The modern periodic table has been DIVIDED into (a) seven PERIODS: three short and four LONG (b) NINE periods : six short and three long (c) eighteen periods : ten short and eight long (d) nine periods from zero to VIII |
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| 36. |
Calculate the gravitational force between the planet A and B if mass of the planet A is 6 ×10^24 kg and that of the planet B is 7.4 × 10^22 kg and distance between them is 3.84 ×10^5 km. |
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Answer» this is DIRECT answer |
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| 37. |
1. A cyclist covers a distance of 50(ii) km/h.(i) 5 m/s (ii) 18 km/h]2. A train starts from rest and covers a distance of 450 m in 2 min. Calculate the speed of thetrain in (i) m/s (ii) km/h.(i) 3.75 m/s (ii) 13.5 km/h) |
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Answer» I have MENTIONED my ANSWER above PLEASE MARK me as BRAINLIEST |
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| 38. |
|| Question:- ||what type of solutions form minimum boiling azeotropes♡`` |
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Answer» Answer: The SOLUTION FORMS MINIMUM boiling azeotropes :-
Minimum boiling azeotropes
Minimum boiling azeotropes are those which boil at a lower temperature than boiling POINT of each component in the PURE state, e.g., 95. ⚕️ NONEXISTENT⚕️ |
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| 39. |
Which device bears higher internal resistance? |
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Answer» Answer: voltmeters BEARS higher internal resistance. hope it helps plz MARK MINE as brainliest. thank you ^_^ |
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| 40. |
Write 10 precautions measures for ohm's Law experiment. |
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Answer» Answer: the 10 precaution measure of ohm law experiment are as follows 1. KEEP the instruments out of the children reach. 2. do not tear the WIRE using teeth. 3. handle all instruments with care. 4. make sure that you have learnt about the experiment. 5. take help of teacher. 6. you may also take help of elders. 7. make sure that the circuit is working well. 8. all the wires are CONNECTED properly. 9. for accurate measurement always USE GOOD equipment 10. make sure that the circuit is complete. |
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| 41. |
Which mirror can produce a virtual, erect and magnified image of an object? Illustrate with the help of a ray digram |
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Answer» concave mirror Explanation: |
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| 42. |
In thermal equilibrium, the concentration of electrons and holes are |
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Answer» Answer: At equilibrium, the product of the majority and minority carrier CONCENTRATION is a constant, and this is mathematically EXPRESSED by the LAW of Mass Action. where ni is the intrinsic carrier concentration and n0 and p0 are the electron and hole equilibrium carrier concentrations. |
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| 43. |
Angle of incidence , angle of refraction, angle of emergence ,(e-i),(i-r) |
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Answer» vhnnnnnbccgbjnncg in |
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| 44. |
How does gravitation affect planetary positions and movements |
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Answer» It is directed towards the CENTRE around which the body is moving. In the case of PLANETS moving around the sun, the centripetal FORCE is provided by the gravitational force of the sun. And in the case of SATELLITES moving around the planets, the centripetal force is provided by the gravitational force of the planets |
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| 45. |
Calculate the work done in lifting an object of 25 kg through a vertical height of 200 cm ? |
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Answer» Answer: Explanation: Work done= POTENTIAL energy Work done = mgh Work done= 200×6×10 Work done= 1200J (or) 12kj. Hope this helped you a LITTLE!!!! |
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| 46. |
7. A copper cube of each side 4 cm is subjected to a tangential force of 9.98 x 104 N. The top face of the cube is sheared to 0.012 with respect to the bottom face. Find the modulus of rigidity. |
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Answer» Answer: not GOING BACK I am INTERESTED and how MANY days it was not in a position I WOULD have been happy I will let me apko I will it for you if sbsigepsvvs NJ to have the same is an option but you have the same is an option but you have a good place and we get it done and how long it for the next week but will have it done and how |
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| 47. |
What is mean specific latent heat of fusion ? |
Answer» SPECIFIC latent heat of fusion :-the amount of heat energy ABSORBED at contant temperature by unit mass of a solid to convert into liquid phase is CALLED the specific latent heat of fusion |
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| 48. |
A 20µC charge is placed in a uniform magnetic field of 2tesia. How much force does the charge experience? |
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Answer» THEORETICAL PROPERTY or matter manifesting magnetic property, analogous to ELECTRIC charge, ARISING from magnetic MONOPOLES. |
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| 49. |
The value of acceleration due to gravity on the surface of the Earth is minimum at the dashand maximum at theat the dash |
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Answer» VALUE of ACCELERATION DUE to gravity=9.8m/sec |
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