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.
| 2. |
A bus travels 225 kilometre in 3 hour and 325 km in 5 hour find its average speed |
| Answer» AVERGE SPEED =68.75km/hExplanation: | |
| 3. |
The mass number of three atoms 31, 32, 34. Their atomic number are 15, 16, and 16 respectively which of these two isotopes and which two isotones? |
| Answer» SECOND and THIRD are ISOTOPES FIRST and second are ISOTONES | |
| 4. |
define uniform circular motion and give the expression of velocity for an object exhibiting uniform circular motion |
| Answer» TION:Uniform CIRCULAR motion can be described as the motion of an object in a circle at a constant speed. ... Since the direction of the velocity vector is the same as the direction of the object's motion, the velocity vector is directed TANGENT to the circle as well. | |
| 5. |
Thompson model of atom |
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Answer» atomic model was PROPOSED by William THOMSON in the year 1900. This model explained the description of an INNER structure of the atom theoretically. It was strongly supported by Sir Joseph Thomson, who had discovered the electron earlier.Thomson atomic model was proposed by William Thomson in the year 1900. This model explained the description of an inner structure of the atom theoretically. It was strongly supported by Sir Joseph Thomson, who had discovered the electron earlier.During cathode ray tube experiment, a negatively charged particle was discovered by J.J. Thomson. This experiment took place in the year 1897. Cathode ray tube is a vacuum tube. The negative particle was called an electron.Thomson atomic model was proposed by William Thomson in the year 1900. This model explained the description of an inner structure of the atom theoretically. It was strongly supported by Sir Joseph Thomson, who had discovered the electron earlier.During cathode ray tube experiment, a negatively charged particle was discovered by J.J. Thomson. This experiment took place in the year 1897. Cathode ray tube is a vacuum tube. The negative particle was called an electron.Thomson assumed that an electron is two thousand times lighter than a proton and believed that an atom is made up of thousands of electrons. In this atomic structure model, he considered atoms surrounded by a cloud having positive as well as negative charges. The demonstration of the ionization of air by X-ray was also done by him together with Rutherford. They were the first to demonstrate it. Thomson’s model of an atom is similar to a PLUM pudding.THANK YOU ❤️FOLLOW MEMARK AS BRAINLIEST PLEASE ✌️❤️ |
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| 6. |
Define when we use will and shall in future tense. |
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Answer» please mark as brainlist answer and follow me please.. Explanation:HI friend...Would is a past-tense form of will. If you are writing about past events, you can use it to INDICATE something that was in the future at that point in time, but is not necessarily in the future right now. In other words, you use would to preserve the future ASPECT when TALKING about the past.The traditional rule is that SHALL is used with first person pronouns (i.e. I and we) to form the future tense, while will is used with second and third person forms (i.e. you, he, she, it, they). For example: I shall be late. They will not have enough food. |
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| 7. |
Plz tell me the correct answer Plz tell me the correct answer,,..... |
| Answer» TION:ANSWER is (B)1litre of GASEOUS carbon-dioxide | |
| 8. |
A bus moving with the velocity of 90 km / he If mass of the bus is 250 kg how much regarding force is applied to stop the bus in 10 second ? Also calculate the distance travelled by the bus at that time. |
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Answer» Initial velocity (u) = 90 km/h = 25 m/sFinal velocity (v) = 0 m/sTime INTERVAL (t) = 10 SMASS of bus (m) = 250 kgTo Find :Retarding Force applied Distance travelled by bus Solution :First we've to find acceleration with which the bus is moving : Acceleration of bus is -2.5 m/s²Negative sign INDICATES that acceleration is applied in opposite direction of motion ________________________________Retarding force applied is : Retarding force applied is -625 NNegative sign indicates force is applied on opposite direction of motion____________________________Distance travelled by bus is : Distance travelled by bus is 125 m |
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| 9. |
If an arrow travels 300 metre in 4 seconds its speed is |
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Answer» speed=distance/timespeed==75m/s |
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| 10. |
The mass of an oxygen atom is 16.00u. Find its mass in kg. |
| Answer» ANSWER....No.Of moles= GIVEN mass divided by MOLAR mass Apply the FORMULA N u will get the answer....❤❤❤❤❤ | |
| 11. |
Plz tell me the correct answer.......plz |
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Answer» a . all the MOLECULE of WATER get converted to RED coloured molecule |
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| 12. |
Please find the solution as I know the answer i.e A,C,D(Multi Choice correct type) |
| Answer» CEXPLANATION:MARK me BRAINLIEST.................. | |
| 13. |
Name the type of forces involved in the following: (a) A horse pulling a cart(b) A sticker attached to steel almirah without glue.(c) A coin falling to the ground on slipping from hand(d) A plastic comb rubbed in dry hair picking up tiny pieces of paper(e ) A moving boat coming to rest when rowing is stopped |
| Answer» TION:(a) Muscular FORCE(b) Magnetic Force(C) Gravitional Force(d) ELECTROSTATIC Force(e) FRICTIONAL ForceHope it helps! | |
| 14. |
The angle between A+B and AxB is |
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Answer» Given ;two vectors A and B.A and B are two vectors.So,their sum A+Blies in the same PLANE where A and B lie (SINCE they are non-parallel so they define a plane and CROSS product between them is not zero.)A×B=|A| |B| sin×alpha×n,where alpha is the angle between A and B and n is the unit vector perpendicular to the plane containing A and B So,the angle between (A+B) and (A×B) is 90°.Mathematically,=|A+B||A×B|cos alpha=(A+B).(A×B)=A.(A×B)+B.(A×B)=B.(A×A)+A.(B+B)=0+0Answer is 90°(DEGREE)✔*❤THANKS❤* |
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| 15. |
10. Acar starts from rest with a constant acceleration of 5m/s2 along a straight line .Find the distance travelled by it in the first 2 seconds and the distance travelled by it in the 2nd second. |
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Answer» tion:u=0a=5m/s^2t=2sv=u+atv=0+5*2v=10M/sS=u*t+1/2*a*t^2S=0+1/2*5*2*2S=10mNow, t=4sS=u*t+1/2*a*t^2S=0+1/2*5*4*4S=40mTherefore, The distance TRAVELLED by it in FIRST 2 seconds is 10m and next two seconds is 40mHope this helps...... Please follow me...... |
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| 16. |
9.What is the distance travelled by a body thrown upward with a speed 20 m/s under the effect of gravity in the first second of its motion.(given g=10m/s2) and also find its velocity at first second. |
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Answer» Question:-What is the distance travelled by a body thrown upward with a speed 20 m/s under the effect of gravity in the first second of its motion.(given g=10m/s2) and also find the distance covered at first second.Given:-A body is thrown upward with a speed 20 m/s under the effect of gravity in the first second of its motion.ACCELERATION due to gravity is 10 m/s².To Find:-Distance covered by the object at the first second.SoLuTioN:-A body is thrown upward with a speed 20 m/s under the effect of gravity in the first second of its motion. Means, the initial velocity of the body i.e. U is 20 m/s.Also, the acceleration due to gravity i.e. g is 10 m/s². But as the body is thrown against the gravity. So, acceleration due to gravity is -10 m/s².We have to find the distance covered by the object at the first second. We can say that given one is 1 second.At the highest POINT, final velocity i.e. v will be 0 m/s.Using the Second Equation Of Motion,Substitute the KNOWN in the above FORMULA,Therefore, the distance covered by the body is 15 m. |
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| 17. |
What is gravitational force ?? |
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Answer» It is a attractive forceExplanation:The gravitational force is a force that ATTRACTS any two objects with mass. We call the gravitational force attractive because it always tries to PULL MASSES together, it never pushes them apart. In fact, every object, including you, is pulling on every other object in the entire universe! This is called Newton's Universal Law of Gravitation. Admittedly, you don't have a very large mass and so, you're not pulling on those other objects much. And objects that are really far apart from each other don't pull on each other noticeably EITHER. But the force is there and we can calculate it. |
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| 18. |
Kisi 20 coulom ke aavesh ko kisi bindu a se b tak lene me 2 jule karye krna pdta h ydi inke bich ki duri 0.2m h to vibhvantar btaye |
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Answer» can't UNDERSTAND your language, but i think this is CORRECT answeruse the equation U=kq/rhope it helps and please MARK me as brainliest |
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| 19. |
A train starting from one station accelerating uniformly over a distance of 5km moves with a constant speed over 35km retards uniformly over the last 10 km,coming to a stop at another station 50km away from the first station. draw v-t graph of the train. |
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Answer» be of this NATURE |
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| 20. |
A car was moving at a rate of 1 km/h when the brakes applied it comes to rest after travelling a distance 5m calculate the retardation produced in the car. |
| Answer» 1*5=5 m/sI hope it is correct ANSWER FOLLOW me MARK as brainlist | |
| 21. |
A body takes 5½ revolution of circle radius 1m in 5sec find its average speed |
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Answer» Explanation: circle of RADIUS 1 mNo of REVOLUTION = 5.5Time =5secNow...To find average speedDistance = 5 × CIRCUMFERENCE +circumference/2 ....(1)Circum.. = 2PIE r2 ×22/7×1=44/7 mPutting this value in (1)5 × 44/7 + 44/7//2220/7 + 44/14440 + 44//14=484/14=242/7 Now average speed = distance /time =242/7//5=242/35 Hope it help |
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| 22. |
If an object has a weight of 15 kg on the earth what will be its weight on the Moon explain why |
| Answer» AUSE MASS NEVER CHANGES | |
| 23. |
Why do potato chips manufacturesfill the packet of chips withnitrogen gas? |
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Answer» Potato chips bags are not full of air but of nitrogen gas. This is done to PREVENT the chips from oxidizing, which is part that makes them GO stale. Oxygen is very reactive and likes to combine with other molecules whenever it can, causing CHEMICAL CHANGES to TAKE place |
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| 24. |
Plz find answer to this question!! No spam answers....(will be reported) . Correct answer will be marked as BRAINLIEST!!!! |
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Answer» see the attachment GIVEN below..... SRY FOR THE WRITING..... HOPE U GET IT MATE..... |
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| 26. |
A person travels along a straight road first half of distance with a speed 36kmph and second half of distance with a speed 72km/h find the average speed of person. |
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Answer» 3636488484Explanation:2526÷828228÷=227277585×=3&3828=822828=738383×+÷ |
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| 27. |
Prove mathematically the law of conservation of energy spammers keep away otherwise I will report you please answer fast who will answer correct and first will be marked as brainliest |
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Answer» Explanation:Law of conservation of energy: Law of conservation of energy STATES that Energy is neither be created or nor destroyed. Energy can be changed only from one form to another. in other words we can say " the total energy of a closed system always remains constant".This law is VALID in all situation and for all type of transformations.Let's consider an example.an object of mass, "m" be managed to fall freely from a height, "h".at the begin, potential energy is "mgh" but kinetic energy is zero.Why the kinetic energy zero?It is zero because its velocity is zero. therefore, the total energy of the object is "mgh". since it falls, its potential energy will change to kinetic energy. if "v" is the velocity of the object at a provided instant, the kinetic energy would be 1/2m². Since the fall of object continues, would decrease potential energy whereas the kinetic energy would increase. when the object is about to come the GROUND the ground, then "h" = 0 and "v" will be the GREATEST. so, the kinetic energy will be the LARGEST and potential energy the smallest. However, the sum of the potential and kinetic energy would be similar at all points.Kinetic energy + potential energy = constant.__________________________ |
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| 28. |
What is receptor??(IN PHYSICS,ELECTRICITY LESSON ,CBSE) |
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Answer» r are those cells which RECEIVE the STIMULUS. The function of the receptor is to receive INFORMATION about change in environment and convey the information to the BRAIN for ANALYSIS and response._______________________________❤❤ I hope it's helpful ❤❤❤❤good day❤❤ |
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| 29. |
A car travels with a speed of 12m/s , while a scooter travels with a speed of 36km/hr. which of the two travels faster ? |
| Answer» CAR travels fasterExplanation:car is given 12m/sscoter 36 km/hr which is 10m/sso car travels faster I hope this answer was helpful if yes so MARK the answer as brainliest follow me and CLICK that thanks button | |
| 30. |
7.A person travels along a straight road first half of distance with a speed 36kmph and second half of distance with a speed 72km/h find the average speed of person. |
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Answer» :-Average SPEED = ?Formula:-Average velocity or Average speedSolution:-Given,1st half of DISTANCE covered with a speed 36 km/h .And 2nd half of distance covered with a speed 72 km/h .So,n = 2v1 = 36 km/h v2 = 72 km/hNow, ACCORDING to formula Average speed ISHOPE it helps to you. |
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| 31. |
Plz tell me the answer |
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Answer» non UNIFORM motion because the speed is not FOLLOWING the SINGLE DISTANCE |
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| 32. |
How long will a train take to travel a distance of 200km with the speed of 50km/hr ? |
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Answer» tion:If the train is travelling at 60km/h we can say that in two hours the train has travelled 120KM and in three hours 180km, so to travel 200KM we know that we are just over three hours. To do the exact MATH we can go 200/60=3.33333333 so our ANSWER is 3 hrs and 20min.please Mark me as a brainlist answer |
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| 33. |
6. The position S of a particle moving along a straight line at a time t is given by S=4t3+6t5.Find its velocity at t=1 second. |
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Answer» 42Explanation: |
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| 34. |
Which chapter's of physicsareand easytoobasicclass 11th and 12th? |
| Answer» 11TH is basic for 12TH and 11th cvapters are ALSO of basics for NEXT | |
| 35. |
Name three surce of chemical energy |
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Answer» d is an easily available source of chemical energy. Since ancient times, wood has been burnt to give out heat and energy. The wood decomposes to produce chemical energy.CoalThe most basic source of chemical energy is coal. Coal is formed when excessive heat and pressure under the Earth surface act upon rocks for millions of years. Coal is BURNED to obtain chemical energy.GasolineThe gasoline that we USE in cars is also a source of chemical energy. The gasoline is burned in the combustion chamber of the engine to produce chemical energy.PhotosynthesisPhotosynthesis is the process by which PLANTS convert the sun energy they receive into chemical energy. It involves chemical reactions in which the sun energy is trapped by the plant molecule and then CHANGED into chemical energy to be used in the form of glucose for consumption.ElectrolysisElectrolysis is the process where an electrolyte (a substance UNDERGOING electrolysis) is decomposed using electricity to produce different products. The electric energy passed through the electrolyte is converted into chemical energy through different chemical reactions. |
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| 36. |
State the law of conservation of energy |
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Answer» IT STATES THAT ENERGY CAN NEITHER BE CREATED NOR BE DESTROYED BUT CAN TRANSFER FROM ONE FORM TO ANOTHER.PLZ FOLLOW MEMARK ME BRAINLIESTSEE MY BIOTHANK MY ANSWER |
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| 37. |
Plz tell meeeee the answer |
| Answer» HOPE it HELPS YOUPLEASE MARK BRAINLIEST | |
| 38. |
Define standard metre? |
| Answer» EXPLANATION:-The STANDARD meter is the length of the path travelled by LIGHT in vacuum during a time interval of 1/299 792 458 of a second. ... The Standard meter is the length of the path travelled by light in vacuum during a time interval of 1/299 792 458 of a second | |
| 39. |
State Newton's second lawof motion? |
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Answer» tion:Newton's second law of motion states that," The rate of CHANGE of momentum of a BODY is directly proportional to the applied UNBALANCED force in the DIRECTION of force.Mathematically, it is GIVEN by- ∝ |
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| 40. |
How can we define rectilinear motion? |
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Answer» tion:Definition of rectilinear motion. : a LINEAR motion in which the direction of the VELOCITY REMAINS constant and the PATH is a STRAIGHT line. |
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| 42. |
The potential due to a point charge at a distance of 0.3 m is 10^3 V. What will be the electric field intensitydue to the same charge at a distance of 0.4 m?Ans. 1875 V-m |
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Answer» Explanation:kq/r1=VI Here k is constant quality is point CHARGE r1 is DISTANCE from point charge VI is POTENTIAL This IMPLIES that kq=V1r1 Electric field at distance r2. from the point charge quality is E=kq/(r2)^2=V1r1/(r2)^2 =(10)^3×0.3/(0.4)^2 =(300/16)=75/4 =18.75 V/m |
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| 43. |
At time seconds, where ≥ 1, a particle moves in the -y plane in such a way that its velocity (m s-1) is given by = −12 − 4. When = 1, is at point and when = 4, is at the point . Find the exact distance . |
| Answer» SORRY i can't understand the QUESTIONS so that the exact DISTANCE will be 8 | |
| 44. |
A car travels along a straight line with the initial velocity olf 36 m/sec. At the end of 500 m, car's velocity was 72 m/sec. Calculate the time interval from star to end point. |
| Answer» ANWER is the TIME t=9.5 secondsExplanation:(v×v) - (u×u)=2as72×72 - 36×36 = 2 a 500a=3.9v=u+at72=36+3.9tt=9.5 | |
| 45. |
a wire of length l is made of material resistivity ∫ if cut into half what is material resistivity of each part |
| Answer» ESTION is INCOMPLETE! | |
| 46. |
Problem 5. A small steel ball of radius r is allowed to fall under gravity through a column of a viscous liquid ofcoefficient of viscosity n. After some time the velocity of thebody attains a constant value vp. The terminal velocitydepends upon (i) the weight of the ball mg (ii) the coefficientof viscosity n and (iii) the radius of the ball r. By the methodof dimensions, determine the relation expressing terminalvelocity[Chandigarh 07] |
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Answer» Vt does not depend on WEIGHT of object It is PROPORTIONAL to SQUARE of RADIUS of ballAnd INVERSE proportional to co efficient ofviscosityExplanation: |
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| 47. |
The Steering wheel of a vehicle is of larger diameter |
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Answer» The larger the radius the greater the torque. Another way of STATING that is that a smaller FORCE on a large wheel could generate the same torque as greater force on a smaller wheel. Hence, the steering wheel of heavy VEHICLES has large diameter.please FOLLOW meMark as brainliest answer |
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| 48. |
Question Objective : Conceptual Difficulty Level : AIEEE_L2(NCERT Standard bits including numerical bits) A cylindrical vessel of area of cross-section A is filled with water to a height H. It has a capillary tube of length l and radius r fitted horizontally at its bottom. If the coefficient of viscosity of water is η, then time required in which level of water will fall to a height H2 is (density of water is ρ) A) ηIr244AρIn(2) B) 4ηIr4πgAρIn(12) C) 8ηIAρπgr4In(2) D) 4HηIρπgr4In(2) |
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Answer» (B) I hope this ANSWER is correct.Explanation: If U UNDERSTAND than follow me. |
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| 49. |
State the new cartesian sign conversion followed for spherical mirror |
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Answer» tion: This SIGN convention is known as New CARTESIAN Sign Convention. Sign is taken as – (negative) from pole of a spherical mirror TOWARDS object along the principal axis. This means sign is ALWAYS taken as – (negative) in FRONT of a spherical mirror.. HOPE IT HELPS YOU ☺️ |
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| 50. |
Derive an expression for the energy stored in a parallel plate capacitor with air as the medium between the plates. |
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Answer» physics and astronomy and astrophysics Pune MAHARASHTRA India vs NEW Zealand vs India 5th odi match prediction of the morning and I have no idea what the HELL is going to be in the morning and I have no idea what the hell is going to beExplanation:science is about computer science and technology UNIVERSITY admission test RESULT published the blogpost the morning and I have no idea what the hell is going to be in the morning and I have no idea what the hell is going to be |
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