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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 polythene piece ribbed with wool isf found to have negative charge of 1.6 l.Find the neemberofElections transferred |
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Answer» Answer: When polythene is rubbed against WOOL, a number of electrons get transferred from wool to polythene. Hence, wool BECOMES positively CHARGED and polythene becomes negatively charged. THEREFORE, the number of electrons transferred from wool to polythene is 1.87 × 10^12. |
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| 2. |
Write two characteristics of universal law of gravitation |
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Answer» Answer: Newton's universal LAW of gravitation: Every particle in the universe attracts every other particle with a force along a LINE JOINING them. The force is directly PROPORTIONAL to the PRODUCT of their masses and inversely proportional to the square of the distance between them. |
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| 3. |
Elasticity stress and strain |
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Answer» Explanation: hindi the growing number of the following terms and I am a little bit. the following week and a HALF hours. I am a bit more about the growing huma the following week and a wildlife and a wildlife and a half years ago I was wondering that the district of my friends, but the growing huma the following diseases. . I am sure we can be done in the month of the constituent, and the following diseases transmitted tetanusd to do it. I will. I have to do the rest is the importance. the last night and I will have to go on, I will be a GOOD idea. I am not going to have been in contact. . the only one of our customers with other day and the following week in the month. I will diseases. . . . . . . . . the only one of our own, or the contents to be the best way of doing things are good, I have a great time. . I have a great day. . . . . . . . I have a good time for me to the fci to the fci to the fci to be the first one is a bit more than a few minutes ago save the following diseases. . I am sure we have been in contact. . the only one of our own, or the other SIDE of a country explain why the following week. the growing number is not valid, but I have to do the job, I am a bit more about the following week. the growing number is a bit more about the growing human being a little bit of a seed DRILL, and the rest assured I am sure that all of US, but the growing huma the following week and a half hours ago save the children of Israel and a wildlife. I am not going to have a look and see if you have any other information about the likely to be a problem with this list of the following terms and I have been a while. . . . . . . . . . . |
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| 4. |
plz answer the 4th question step by step so i can understand plz plz I don't want to know only answer I want the explanation plz answer it step by step ✌✌✌✌✌✌✌✌✌✌✌☺️☺️☺️❤️❤️❣️❤️❣️❤️✌❤️✌❤️✌❤️✌♥️♥️✌♥️✌♥️✌♥️✌♥️✌♥️✌ |
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Answer» hello!!! we need to add the NUMBER of students who got more than or equal to 60 marks therefore number of students who got 60 to 70 marks =10 number of students who got 70 to 80 marks =5 number of students who got 80 to 90 marks =3 number of students who got 90 to 100 marks =3 adding all we GET , 10 + 5 + 3 + 3 =21 therefore the answer is 21 option c hope it HELPS Mark as BRAINLIEST if usefull ✌✌✌ |
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| 5. |
The speed of sound is 330 ms? What is thesound whose frequency is 550 HZ? |
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Answer» please MAKE the question CLEAR. have a GREAT day. |
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| 6. |
स्वदेशी उत्पादों को बढ़ावा देने के लिए प्रधानमंत्री द्वारा कौन सा नारा दिया गया जल्दी बताइए |
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Answer» qwertyuiop |
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| 7. |
Ii) Tendulkar says* force of attraction exerted by the Earth on the Moon is same as force of attractionexerted by the Moon on the Earth' comment of the statement. |
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Answer» According to UNIVERSAL law of gravitation, the force of attraction between 2 BODIES is:- F = (G m1m2)/r2 Where m1m2 = the masses of the two bodies, r = distance between them G = gravitational Constant When the distance is reduced to half i.e. r’ = (1/2) r then, F’ = (G m1m2)/r2 = (G m1m2)/(r/2)2 = (4 G m1m2)/ (r2) = 4F Therefore when the distance between the objects is reduced to half, then the force of gravitation increases by four TIMES the original force Explanation: please follow me please |
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| 8. |
State twe possible functions of a machine when its mechanical advantage is not equal to 1 |
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Answer» MACHINE is very IMPORTANT |
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| 9. |
Two resistors 10 ohm and 14 ohm are connected in series.Main voltage of the circuit is 3V. Calculate1. the combined resistance.2. the current in the circuit.3.potential difference across 10 ohm and 14 ohm. |
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Answer» Answer: 2. 1\8 AMP current 3. potwential DIFFERENCE across 10 ohm is 5\4 v and 14 ohm is 7\4 ohm |
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| 11. |
What is an eureka can ? How would you use it to determine the density of an irregular solid ? |
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Answer» first of all measure the mass of the irregular solid using beam balance. Keep a SMALL measuring beaker on the mouth of the Eureka can . Now , after dropping the irregular solid the water flows from the Eureka can into measuring beaker through the PIPE LIKE structure.
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| 12. |
Difference between gravitational potential energy and Elastic potential energyIn detail |
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Answer» Answer: Gravitational potential energy is energy in an object that is HELD in a vertical position. ELASTIC potential energy is energy STORED in OBJECTS that can be stretched or COMPRESSED. |
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| 13. |
How to read this F with a line on top |
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Answer» I am not sure |
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| 14. |
If mass of an object is 40 kg and it ismoving with a velocity of 20 m/s, thenK.E is equal to8000 J5000 J2000 J4000j |
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Answer» Answer: Explanation: K.E. = 1/2(mv²) = 1/2(40 KG * 20 m/s * 20 m/s) = 16000 J /2 = 8000 J |
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| 15. |
The diffenence in length between inon rodand cupper rod at any temperature is 10c.mfind the length of each rod.लिनियर एक्सपेंशन ऑफ़ आयरन इज इक्वल टू 12 इनटू 10 टो थे पावर माइनस 600 डिग्री सेल्सियस एंड लिनियर एक्सपेंशन ऑफ़ कॉपर इज इट इन इंर्पोटेंट रिवर बोट माइनस 600 डिग्री सेल्सियस |
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Answer» mark me as a brainiliest follow me |
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| 16. |
The i value for η = 4*1 point1,2,33,4,5Ο Ο Ο Ο1,2,3,4Ο 0,1,2,3 |
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Answer» Answer: guys |
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| 17. |
How many Sigma and pi bond in alkyne |
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Answer» Explanation: GOVERNMENT by the people especially : rule of the majority. b : a government in which the supreme power is VESTED in the people and EXERCISED by them directly or INDIRECTLY through a system of representation usually involving periodically held free elections. |
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| 18. |
1) On a particular planet, it takes 850 J for a 50 kg remote probe to launch itself up 2 m. What is the gravitational field strength of the planet? |
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Answer» Answer: ALTERNATIVE Title: movement Motion, in physics, CHANGE with time of the position or orientation of a body. Motion along a LINE or a CURVE is called translation. Motion that changes the orientation of a body is called rotation. In both cases all points in the body have the same velocity (directed speed) and the same acceleration (time rate of change of velocity). The most general kind of motion combines both translation and rotation. |
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| 19. |
Q.1(a) Define moment of Inertia. State MI of triangular section about its base. |
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Answer» Inertia is a PROPERTY of a BODY to resist the CHANGE in linear state of motion. It is measured by the mass of the body. The MOMENT of inertia (I) of a body is a MEASURE of its ability to resist change in its rotational state of motion. |
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| 20. |
Que. Insulation resistance Ri= V/I, in this VisA. voltage between conductor and earthB. voltage between insulation and earthC. voltage between conductor and insulatorD. all aboveire |
Answer» A. VOLTAGE between CONDUCTOR and EARTH |
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| 21. |
3.Two masses 40 kg and 30 kg are connected by a weightlessstring passing over a frictionless pulley as shown in thefigure. The tension in the string will beTT30 kg(m2)40 kg(m)30°30°(a) 188 N.(b) 368 N.(c) 288 N(d) 168 N |
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Answer» Answer: The CORRECT answer is b) 368N Explanation: Mark me as BRAINLIEST... THANKS.... |
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| 22. |
Figure 16.14 shows a simple barometer.What is the region A?b What keeps the mercury in the tube?c What is the value of the atmospheric pressure beingshown by the barometer?d What would happen to this reading if the barometerwere taken up a high mountain? Give a reason,A2 cm74 cmmercury41 cm1 cm |
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Answer» d is the answer Explanation: |
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| 23. |
Define vector notation, and presenting vectors |
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Answer» Answer: Explanation: * Vectors can be graphically represented by directed line segments. Point A is called the initial point of the vector, and point B is called the terminal point. ... Symbolic notation for this vector is (read “vector AB”). Vectors are also denoted by boldface letters such as u, v, and w. * Vectors are usually represented by arrows with their length representing the magnitude and their direction represented by the direction the arrow points. Vectors REQUIRE both a magnitude and a direction. The magnitude of a vector is a NUMBER for comparing ONE vector to another. * Vector notation is a commonly used mathematical notation for working with mathematical vectors, which may be geometric vectors or members of vector spaces. ... Shorthand notations include tildes and straight lines placed respectively, below or above the name of a vector. * The vector projection is the vector produced when one vector is resolved into two component vectors, one that is parallel to the 2ND vector and one that is PERPENDICULAR to the 2nd vector. Thank me Please mark me as Brainliest !! |
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| 24. |
Explain de-Broglie argument to propose his hypothesis. Show that de-Broglie wavelength of photon equals electromagnetic radiation. |
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Answer» The MOMENTUM of ELECTROMAGNETIC WAVE of frequency v WAVELENGTH is given by, , De-broglie wavelength of photon,
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| 25. |
A copper wire has a diameter of 0.5 mm and resistivity of 1.6 × 10 -8 m. (a) Whatwill be the length of this wire to make its resistance 10 ? |
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Answer» resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit ELEMENT. In electronic circuits, RESISTORS are used to reduce current flow, adjust signal levels, to divide voltages, bias active elements, and TERMINATE TRANSMISSION lines, among other uses. |
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| 26. |
Differentiate between ADC and DAC |
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Answer» CIRCUIT diagram is a graphical representation of an ELECTRICAL circuit. A pictorial circuit diagram USES simple images of components, while a schematic diagram shows the components and interconnections of the circuit using standardized SYMBOLIC represents |
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| 27. |
A grenade having mass of 10 kg flying horizontallywith a velocity of 10 m/s explodes into two ffagmentsThe larger fragment has a velocity 25 mis in thedirection of the initial velocity of the grenade. Thesmaller fragment has a velocity of 12.5 m/s in theopposite direction. The masses of the fragments are(1) 2 kg 8 kg(2) 3 kg. 7 kg(3) 4 kg, 6 kg(4) 4.5 kg. 5,5 kg |
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Answer» CTG nkkgfvnydcvifcvmifvktdvkjfcvmktcvmkydvitdvkircvkyfvkyfgkgc |
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| 28. |
For a pnp transistor to operate in saturation region of its output characteristic in CE configuration which of the following conditions should be met(a) The emitter base junction should be forward biased and base collector junction should be reversed biased.(b) Both junctions should be forward biased.(c) The base emitter junction should be reverse biased and base collector junction should be forward biased.(d) Both junctions should be reverse biased. |
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Answer» The CORRECT is : (B)✔Explanation: :)) |
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| 29. |
How can you explain vibrations prouduces sound |
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Answer» Explanation: Background. Sound is a TYPE of ENERGY made by vibrations. When an object vibrates, it CAUSES movement in surrounding AIR molecules. These molecules bump into the molecules close to them, CAUSING them to vibrate as well. |
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| 30. |
A variable resistor R is connected across a cell of emf E and internalresistance r.a) Draw the circuit diagram.b) Plot the graph showing variation of potential drop across R asfunction of R.c) At what value of R current in circuit will be maximum. |
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Answer» resistor is a passive two-terminal electrical component that implements electrical resistance as a CIRCUIT ELEMENT. In electronic circuits, RESISTORS are used to reduce current flow, adjust signal levels, to divide voltages, bias ACTIVE elements, and terminate transmission lines, among other uses. s |
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| 31. |
13. The equivalent capacitance between A and B in thecircuit shown in fig.:(b) 9 F(d) 1/3 F8 uF4 MFHE HI(a) 1 F(c) 1.5 F16 uF12 uFAOHHOBalch4 MFㅓㅏop solve 12 classes |
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Answer» GOD dog Explanation: |
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| 32. |
What will be the nature of graph when body at rest ? |
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Answer» UNIFORM motion hope this will HELP you |
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| 33. |
If work done is given by W =3t3 what is it power at t=1 sec |
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Answer» p = 3t3/1 = 3t3=9t WATT |
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| 34. |
Why latent heat is not read in thermometer |
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Answer» gkckhclhbclbclbch Explanation: ckbckhcjvlvhgujgl |
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| 35. |
What do you mean by negative acceleration?? Is the object where the decrease in the distance covered in a given time decreases can be said to have negative acceleration? ❌ |
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Answer» Answer: negative acc. also called retardation open the ATTACHED file may it hlp U |
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| 36. |
Draw the ray diagaram of convex lens when the size of the image and object is same |
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| 37. |
Which of the following expressions does not representSHM?(a) Acoswt (b) Asin 2wt(c) Asin wt + Bcos wt(d) Asin^2 wtdont spam it .please tell the right answer with an explanation |
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Answer» D Explanation: y= a SIN wt y= a cos wt y=a sin wt +a cos wt y=a tan wt |
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| 38. |
A transformer with an output voltageof 4200V is supplied at 230v. If thesecondaaryhas 2000 turns, calculate thenumber of turns? |
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Answer» Explanation: V1 = 230 v2 = 4200 n2=2000 n1=? n1/n2=v1/v2 n1= (v1/v2)*n2 n1 = (230/4200)*2000 n1 =110 |
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| 39. |
Draw the graph between kinetic energy and mass |
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| 40. |
The angle of contact for a solid and a liquid is less than 90°. Will the liquid wet the solid ? Will it rise in the capillary made of that solid ? |
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Answer» HELLO............... |
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| 41. |
5.The element of a hot plate is made of a conducting material with a -----------melting |
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Answer» Yjcjxnndndnxnndndnnddnndndndndndndnndnodnsndpdhhojdjdjdjsjhdhhdjdjjdjddjhdhshhsshhshshshshdhhdhdhshhdhhdh Explanation: |
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| 42. |
Q-2-Fill in the blanks2. Animal fibres are made up of long chains of3. Cotton is cultivated as ascrub4. Jute requiressoil for cultivation5. Periodic changes occur after regularexpands more than liquids for the same increase7. Irreversible changes arein nature8.andare synthetic fibres9. Plant fibres can be obtained from____and____plants |
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Answer» Answer: 2) cell |
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| 43. |
Why are positive and negative static electric charges generated in different materials? |
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Answer» Answer: SPECIFICALLY, static cling is an attraction between two objects with opposite ELECTRICAL charges, one positive and one negative. ... This is because the rubbing releases negative charges, called electrons, which can BUILD up on one OBJECT to produce a static CHARGE |
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| 44. |
Of all the planets in our solar system, Jupiter has the greatest gravitational strength.a.If a 0.5kg pair of running shoes weighs 11.5 N on Jupiter what is the strength of gravity there?b. If the same pair of shoes weighs 0.3 N on Pluto, what is the strength of gravity on Pluto?c. What is the weight of the pair of shoe on Earth? |
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Answer» Answer: 11.55 / 0.5 = ...............23.1 but i an not 100%sure Explanation: |
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| 45. |
An object, moving along a straight line, is said to be inuniform motion if it covers regularly increasing distancesin equal intervals of time true or false |
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Answer» This is a answer true. Explanation: |
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| 46. |
Latin name of silver |
Answer» ARGENTUMExplanation: |
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| 47. |
Find gravitional force between 50kg and body it separation between them is 20 cm |
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Answer» Answer: ASSUMING the MASS of the body is 1 kg and the other body mass is GIVEN is 50 kg. distance between them is 20cm the GRAVITATIONAL force = Gm1m2/r^2 so, 6.673*10^(-11)*50*1/(20*20*0.00001) |
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| 48. |
State the change possessed by a proton and electron |
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Answer» CHANGES called as bond.. Explanation: or it can also possessed from valency by giving or taking or SHARING elements |
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| 49. |
1) The basic condition necessary for achemical reaction is ..... |
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Answer» Answer: The BASIC condition NECESSARY for a chemical REACTION is TWO reactantsExplanation: I Hope you will make me brainliest |
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| 50. |
calculate the efflux speed of kerosene oil from an oripice of a tank in which the pressure is 4atm . the density of it is 0.72kg/l |
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Answer» <P>NICE QUESTION Explanation: ANSWER P 1
= 2 1
ρv 2
⇒4atm= 2 1
×ρV 2
⇒ 720 4×1.013×10 5×2 =V 2
⇒V=33.549m/s ⇒V≈33.55m/s |
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