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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. |
Discussion of a lab report on pnp and npn transistors |
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Answer» HI FRIENDS I am INTERESTED in GIRL's for .. |
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| 2. |
What is the difference between internal energy of an object and heat |
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Answer» Answer: Internal ENERGY is a measure of the amount of KINETIC and POTENTIAL energy POSSESSED by particles in a body and is measured in Joules. Heat energy on the other hand only CONCERNS transfer of internal energy from a hotter body to a colder body. |
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| 3. |
What do we conclude on sprinkling iron fillings on bar magnet? |
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Answer» Answer: When the iron filings are sprinkled, those very CLOSE to the magnet, where the MAGNETIC force is the strongest, will CLING to the magnet. Those filings a little farther away, where the magnetic force is less strong, will align themselves with the magnetic FLUX LINES, but they will not be drawn to cling to the magnet. please Mark me as brainliest |
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| 4. |
Two bodies of masses m1 & m2 separated by a distance 'r' . Find the ratio of force on m1 and m2. |
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Answer» Two BODIES of masses M1 & M2 separated by a distance 'r' . Find the RATIO of force on m1 and m2. Explanation: sorry idk idk good morning have a nice day ahead hope you're doing well be happy |
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| 5. |
In an experiment to trace the path of a ray of light passing through a rectangular glass slab, the correct measurement of angles of incidence (i), refraction (r) and emergence (e) is shown in the diagrams.1 pointCaptionless ImageABCD |
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| 6. |
In this experiment by Otto Von Guericke, what presses the hemispheres together? |
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Answer» German scientist, Otto Von Guericke placed two hollow metal hemispheres TOGETHER. Then almost all the air from the COMBINED hemispheres was removed using VACUUM pump. ... In this way, he demonstrated the experiment of air PRESSURE. |
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| 7. |
Obtain the dimensions of surface tension |
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Answer» or , T = [M1 L1 T-2] × [L-1] = M1 T-2. Therefore, surface tension is DIMENSIONALLY represented as M1 T-2. Explanation: MARK me brainlist |
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| 8. |
Anobjectofmass‘m‘iskeptonthefloorofalift.Whatwillbetheapparentweightoftheobjectwhentheliftmoveswithaconstantspeed‘v’downwards? |
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Answer»
this is the ANSWER |
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| 9. |
How does a fuse prevent possible damage in case of overloading or short circuit? Why is it always connected to the live wire? |
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Answer» Explanation: fuse or circuit breaker prevents this by ''blowing,'' or breaking the circuit, when an overload occurs. Fuses screw into threaded SOCKETS INSIDE the fuse box. The fuses CONTAIN a thin strip of metal that melts if the current (or AMPERAGE) FLOWING through that circuit exceeds the amount for which that fuse is rated. |
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| 10. |
The Current gain n CB Amplifier is. A) very large B) large C) Very small D) slightly less than one |
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Answer» LARGE in this TUTORIAL we will learn Explanation: 1 2 3 4 5 7 8 9 0 |
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| 11. |
Speed between different velocity |
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Answer» Put another way, SPEED is a scalar VALUE, while velocity is a vector. For EXAMPLE, 50 km/hr (31 mph) describes the speed at which a car is traveling along a road, while 50 km/hr west describes the velocity at which it is traveling. plz mark me as brainlist |
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| 12. |
You are an observer in the depicted picture below. explain the phenomenal reason |
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Answer» Answer: A phenomenon, in a scientific context, is something that is observed to OCCUR or to exist. This MEANING CONTRASTS with the understanding of the word in GENERAL usage, as something extraordinary or OUTSTANDING. ... Social phenomena are those that occur or exist through the actions of groups of humans. hope it's helpful for you please mark as brainlist |
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| 13. |
Let us consider the current flowing through a metallic wire if the temperature of the entire system increases. What will happen from the following options? Give reason.(a) Potential difference (V) increases (b) Resistance (R) decreases(c) Potential difference (V) decrease (d) V and R remains the same[10 points for you brainlies] |
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Answer» CURRENT is directly proportional to the potential difference across the terminal according to the ohm's law so the potential difference will decrease because we know with the rise in temperature RESISTIBILITY increases that is it will obstruct the FLOW of current and as a flow of current will be of obstructed then the potential difference with the DECREASE in current will decrease |
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| 14. |
The angles between the three crystallographic axes are known as____________ |
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Answer» Answer: The CRYSTALLOGRAPHIC axes are imaginary lines that we can DRAW within the crystal lattice. These will define a COORDINATE system within the crystal. ... As we will SEE, the axes are defined based on the symmetry of the lattice and the crystal. plz follow me |
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| 15. |
Section-AQ1. At which place on the surface of earth acceleration due to gravity is maximum & why? 1Q2. Gravitational force on an object on an imaginary planet is half of that of the gravitationalat polesand minimum at erbecausraderadeORQ. Name the factors on which acceleration due to gravity is depend.03. What happens to the magnitude of the force of gravitation between two objects il : distancebetween the object is tripled ?11Q4. Which type of energy convert into another form in Electric cell.Q5. Which type of energy stored in elastic spring.1Q6. An element 'X' has a mass number 4 and atomic number 2. Find the valency of 'X'. 1OR |
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| 16. |
How does nature protect the aquatic life during winter season? |
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Answer» Answer: In cold winter MONTHS, lakes and rivers freeze over forming ICE. Yet, fish and other aquatic animals manage to survive. ... All LIQUIDS have a boiling point and a freezing point. When water boils at a certain TEMPERATURE it turns into steam |
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| 17. |
4.The North Pole of the freely suspended magnet points towardsgeographical North of the Earthb. geographical South of the Earthmagnetic North of the Earthd. none of the above |
Answer» GEOGRAPHICAL NORTH of the EARTH |
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| 18. |
Find kinetic energy if mass is 40kg and velocity is 2m/s. |
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Answer» Mass = 40 kg Velocity = 2 m/s K.E = ? Kinetic Energy = 40 J Hope HELPS You ✌️ Please MARK as the Brainliest ‼️ |
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| 19. |
Define fluid motion and its types |
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Answer» Fluid flow has all kinds of aspects — STEADY or unsteady, compressible or INCOMPRESSIBLE, viscous or non-viscous, and rotational or irrotational, to name a few. Some of these CHARACTERISTICS reflect the properties of the liquid itself, and others focus on how the fluid is MOVING. |
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| 20. |
Please answer fast and correctlyIf the angular velocity of a body rotating about a given axis is doubled, then its rotational K.E.a) is doubled b) is halved c) becomes fourtimes d) becomes one fourth |
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Answer» Answer: If the angular velocity of a body ROTATING about a GIVEN axis is DOUBLED, then its rotational K.E.kinetic ENERGY is doubled. |
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| 21. |
8.If we reduce the amplitude of the sound by one-fourth, then the loudness becomes------- |
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Answer» HALVED will be the answer |
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| 22. |
Find the current in the circuit shown below |
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Answer» HOPE it helped plz MARK me as BRAINLIEST |
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| 23. |
Name some products obtained from coal tar. |
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Answer» Answer: COAL tar is widely used to manufacture paints, PERFUMES, synthetic dyes, PHOTOGRAPHIC material, drugs and explosives. It can be utilized to MAKE insecticides and pesticides. Explanation: Plss mark me as brainliest |
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| 24. |
Calculate the gravitational force between two masses 90 kg and 100 kg separated by a distance of 30 m.Given G= 6.67 x 10 -11 N m2 kg -2 |
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Answer» f=Gm×m/d^2 6.673×10^-11×90×100/30×30 667×10^-11×3/30 667×10^-11×1/10 66.7×10^-11N |
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| 25. |
There are 6 tube lights of 15watt each, 4 fans of 60watt each, a computer of 100watt and air conditioner of 2kilowatt in a office. Calculate the electricity bill of the office for the month of March if these appliances are used for 10 hours daily. Take the cost of 1 unit of energy as Rs. 2.50. |
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Answer» okkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk |
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| 26. |
The bear to the frozen lake nearby |
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Answer» It isn't a COMPLETE QUESTION... PLEASE complete the question ⁉️ |
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| 27. |
Find value of power if work done is 300 Joule and time is 20 seconds |
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Answer» POWER =(workdone/time)
= 300/20 = 15 j/s |
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| 28. |
What is momentum define it with an example ?(note- I don't want cheated answers try to frame it in your words) |
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Answer» Answer: Momentum is defined as the amount of MOTION occurring in something that is moving, or the FORCE that drives something FORWARD to keep it moving. An EXAMPLE of momentum is how quickly a car is moving down a HILLS. |
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| 29. |
Excmple 2.1 Caleulate the ance of(a) 1° (degree) (b) l' Iminute of are oraand (c) I (second of arc or cond)radians. Use 36092 rad. 100T = 60 |
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Answer» Mark me as BRAINLIEST |
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| 30. |
As what is conExampleAlgerethom: explain withCommute |
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Answer» PLEASE POST the QUESTION peoperly i will ANSWERRRRRR |
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| 31. |
(b) Two resistors, when connected in series have total resistance of 25 ohms. If they areconnected in parallel the value goes down to 6 ohms. Find their values. |
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Answer» Answer: The total resistance of resistors in series is equal to the sum of their individual resistances. That is, R total =R 1 +R +R 3 . The total resistance will always be less than the value of the SMALLEST resistance That is, R total
1 = R 1
1 + R 2
1 + R 3
1 thatis,R=R total
−1 . In this case, the total resistance of the resistors CONNECTED in series is given as R 1 +R 2 =45 - eqn 1 The total resistance of the resistors connected in parallel is given as R 1
1 + R 2
1 = 10 1 thatis, R 1
1 + R 2
1 =0.1 - eqn 2 Putting the value of R 1 +R 2 in eqn 2, we get, R 1 R 2 =10×45=450ohms. Now, From the identity, (R 1 −R 2 ) 2 =(R 1 +R 2 ) 2 −4R 1 R 2 ,weget,R 1 −R 2 =15ohms - eqn 3. Adding eqn 2 and eqn 3, 1 =60ohmsThatis,R 1 =30ohms. Substituting this value in eqn 3, we get, R 2 =(30−15)=15ohms. Hence, the values of the resistors are 30 OHMS and 15 ohms
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| 32. |
Which team was winner ipl 2019 |
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Answer» Explanation: your answer is Mumbai Indians win match IPL in 2019 by the highest GRADE Mark me as brain LIST |
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| 33. |
How much heat is required to change the temperature of 149.05 grams of heat ( specific heat capacity = 0.03 cal/g C presuperscript 0) from 10 to the power of 0 c space t o space 60 to the power of 0 C? |
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Answer» zigzititsy9dpufoydoydyor0teote Explanation: gifoydiyey8eite8686ryi |
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| 34. |
A Rocket works by expelling hot exhaust gases from it’s nozzle. Theexhaust gas molecules come out from the nozzle very fast hence impartingmomentum to rocket in the opposite direction. Rockets make exhaust byburning fuel in a rocket engine. Unlike airplanes' jet engines, rockets aredesigned to work in space: They don't have intakes for air, and they bring alongtheir own oxidizers, substances that play the role of oxygen in burning fuel. Arocket's fuel and oxidizer—called propellants—can be either solid or liquid. Thespace shuttle's side boosters used solid propellants, while many modernrockets use liquid propellants.A rocket's first stage gets the rocket out of the lower atmosphere. Because thefirst stage must lift the entire rocket, its cargo (or payload), and any unusedfuel, it's the biggest and most powerful section. The faster a rocket goes, themore air resistance it encounters. But the higher the rocket goes, the thinnerthe atmosphere gets. The second stage has a lot less to transport, and itdoesn't have to fight through the thick lower atmosphere, so it usually has justone engine.Answer any four questions from five questions below -(i) A rocket works on the principle of –(a) Law of conservation of momentum (1)(b) Newton’s third law of motion(c) Newton’s second law of motion(d) Both (a) and (b)(ii) A propellant is a substance –(a) Which acts as a fuel to propel the rocket(b) Which has oxidizer along with fuel for burning it(c) Which provides momentum to rocket during launching(d) Which helps the rocket to burn the unused fuel(iii) A rocket engine doesn’t have intakes or air. The possible reason for it is –(1)(a) It is a self propelling machine not needing air(b) Enough momentum has been provided to it during launching(c) It can take necessary air from atmosphere(d) It has inbuilt oxidizers in the fuel for supporting combustionShown here is a graph of air density in kg/m3 with rising altitude above earth’ssurface. Based on above passage, answer the following –(iv) In which range of altitude, a propelling rocket will experience maximum airresistance? (1)(a) Up to 200 km above earth’s surface(b) Between 200 to 400 km(c) Between 400 to 600 km(d) Between 600 to 800 km(v) Between 600 to 800 km, the rocket will experience – (1)(a) Maximum air friction(b) Variable air friction(c) Minimum air friction(d) Almost same air friction as between 200 to 400 km |
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Answer» Answer: (i) A rocket works on the principle of?answersThe rocket works because of the law of CONSERVATION of LINEAR momentum. The law of conservation of linear momentum is very important in physics. Momentum is defined as the mass of an object times its velocity. (b) Enough momentum has been provided to it during launchinganswer For linear momentum to be conserved, the FINAL momentum MUST be equal to the initial momentum, which is zero. Linear momentum is conserved if one takes into ACCOUNT the burnt fuel that is ejected out the back of the rocket. |
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| 35. |
TMV ka pura nam |
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Answer» FULL FORM of TMV is Tobacco mosaic virus 10.152863 hope it helps you mark it as BRAINLIST |
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| 36. |
A car covers a distance of 500km in 8h, calculate the speed of the car travelled. |
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Answer» Answer: SPEED of the CAR is 500÷8=62.5 km PER hour please mark me as BRAINLIEST |
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| 37. |
What is the force?arunya mishra ji , sorry for my misunderstanding, mujhe peta nahi tha ki aap girl ho , sorry |
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Answer» Answer: In physics, a FORCE is any interaction that, when UNOPPOSED, will change the motion of an object. A force can cause an object with mass to change its velocity, i.e., to ACCELERATE. Force can also be described INTUITIVELY as a push or a pull. A force has both magnitude and direction, making it a VECTOR quantity. SI unit: Newton |
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| 38. |
Define frequency.write SI unit |
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Answer» Answer: The number of periods or cycles PER SECOND is CALLED frequency. The SI unit for frequency is the hertz (HZ). One hertz is the same as one cycle per second. |
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| 39. |
What is the difference between distance and the displacement? |
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Answer» Answer: Distance is a SCALAR quantity as it only depends upon the magnitude and not the DIRECTION. DISPLACEMENT is a vector quantity as it depends upon both magnitude and direction. ... The distance can be measured along a non-straight PATH. Displacement can only be measured along a straight path. |
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| 40. |
A generator converts _____ energy into _____ energy. |
Answer» ELECTRICAL ENERGYA GENERATOR CONVERTS MECHANICAL energy into electrical energy. |
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| 41. |
The separation between two masses is reduced to one-forth. How is themagnitude of gravitational force between them affected? |
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Answer» The magnitude of gravitational force between TWO masses will become FOUR TIMES as gravitational force VARIES inversely as the square of distance of separation. |
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| 42. |
Sarebrayinga tore di so Non the harde,za serendicular de cozinhaeinen, of me toon Gode the moment of force produced in the door2 Csom an object such tat moment of force's LoNm Calculate the perpendica |
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Answer» Answer: |
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| 43. |
Choose odd one out and give proper reason :- A moving ball , a racing horse , a girl swinging , a book kept on the top of a table. |
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Answer» a book kept on the table explanation bcoz all the other objects are in MOTION they are MOVING but the book is not moving it is at its REST position therefore it's the ans hope it helps you and please MARK as brainliest!!!!!!!!!!plz |
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| 44. |
Explain about behavior of wire??n---o-t fr'-o--m go *og. *le |
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| 45. |
When two plane mirrors are placed parallel and facing each other and an object isplaced in between then infinite images are formed. Why, then only a few images are actually visible? |
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Answer» When an object is placed between TWO plane parallel mirrorrs, then infinite number of images are formed. Images are formed due to multiple reflections. At each REFLECTION, a part of LIGHT energy is ABSORBED. Therefore, distant images get fainter. Make me brainliest please |
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| 46. |
A satandred dry cell produces a voltage of __________ . |
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Answer» Explanation: 1.5 volts Hope it is helpfull. |
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| 47. |
a body is moving along a square path of side p cm each.what will be its displacement after half round |
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Answer» In the early and mid-1800s, how did the ECONOMIES of the Northern and SOUTHERN states compare? Both the North and the South had highly agricultural economies. Both the North and the South had highly agricultural economies. The North was INDUSTRIALIZED, while the South was more agricultural. The North was industrialized, while the South was more agricultural. Both the North and the South had highly industrialized economies |
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| 48. |
2. See fig-Q2, magnetic lines are shown. What is the direction of the current flowingthrough the wire? |
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Answer» Explanation: You have appied for the post of Public Relations OFFICER in a Public Limited Company. The CEO of the firm conducts a telephone INTERVIEW with you. Write at least TEN exchanges between you and the CEO which were delivered during the interview process by is |
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| 49. |
How can you determine that the weather is being changed |
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