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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.
| 2. |
Give one example of acceleration and retardation |
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Answer» Answer: retardation velocity of vehicle decreases when brake is applied if the velocity of a BODY is decreasing with that means the acceleration is in negitive and known as retardation.. acceleration.. |
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| 3. |
What is the Difference between an Alternator and motor? |
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Answer» The major DIFFERENCE between electric MOTORS is that generators/alternators will have VOLTAGE REGULATION circuitry that a motor won't have. ... An electric motor is a device that converts electrical energy into mechanical energy. |
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| 4. |
Characteristics of vector product |
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Answer» There are several ALGEBRAIC properties of vector product. Here are the main among them: |
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| 5. |
A force of 125 N is distributed uniformally on one surface of a cube of edge 10 cm .find pressure |
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Answer» Answer:12500Pa Explanation:FORCE = 125N Area = 100cm^2 =1/100m^2 Pressure = Force/Area =125/1/100 =12500Pa Pls MARK me BRAINLIEST |
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| 6. |
A train travels 180km in 2 1/2 hours express its speed in km/h and m/s |
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Answer» Answer: 1.2km/h and 4.32m/s Explanation: |
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| 7. |
Define rest, motion. How can we say rest and motion are relative |
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Answer» Explanation: the MOVEMENT of our BODY is motion. if there is no motion it will be at REST |
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| 8. |
Connected to nth mass is............. |
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Answer» Hey, there! Here's the answer you are looking for. (see the ATTACHMENT) |
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| 9. |
A body weighs 10 kilogram on the surface of earth. What would be its mass and weight at the centre of the earth. |
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Answer» Answer: The MASS of the body remains same everywhere in the universe. The VALUE of g at the center of the earth is 0 hence , weight = 0 mass = 10 kg |
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| 10. |
Blocks are in contact on a frictionless table. Ahorizontal force F = 3N is applied to one blockas shown. The force exerted by the smallerblock m1 on block m2 is- |
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Answer» Answer: BLOCKS are in contact on a frictionless table. A horizontal force F = 3N is APPLIED to one block as SHOWN. The force exerted by the smaller block m1 on block M2 is- 2neuton |
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| 11. |
How to find time of descent |
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Answer» Explanation: Time of descent After reaching the maximum height, the body begins to TRAVEL DOWNWARDS like a freely falling body. The time taken by a freely falling body to reach the ground is CALLED the time of descent (t2). In this case U = 0 and g is positive. |
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| 12. |
The heat required to convert ice into water is called |
Answer» Hlo mate❣️Latent heat..........is UR answerHope it might HELPED uFollow MEE guys✌️✌️ |
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| 13. |
What is buoyancy explain it please |
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Answer» Answer: the property of substances to float in water or other fluid. This happens because fluid pressure increases with depth. ... It says that the buoyant force on a SUBMERGED OBJECT is EQUAL to the force of gravity on the liquid displaced by the object. To calculate the buoyant force, simply plug in the numbers. Now our equation reads: FB = 1.0 kg/L * 1.0 L * 9.8 m/s2. Once we do the math, we find that the buoyant force equals 9.8 kg-m/s2, which is the same as 9.8 Newtons. If the weight of the object is more than 9.8 N, then the object will sink. |
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| 14. |
2. When a carpet is beaten with a stick, dust comes out of it.Explain. |
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Answer» keep SMILING. |
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| 15. |
3 cells of emf 2v, 5v & 7v are connected in parallel.The Effective emf of the combination is |
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Answer» Answer: |
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| 16. |
A ball is rolling on floor with a constant velocity.. what type of force r acting on ball?? |
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| 17. |
The resultant of two force 10N and 15N acting along +x and _x _ axes respectivelyis |
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Answer» Answer: Explanation: 15-10=5N |
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| 18. |
What is x componend of acceleration in an inclined plane |
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Answer» Answer: Forces and acceleration on an inclined plane. A 4 kg mass is released on a frictionless SLOPE which is at an angle of 30o to the horizontal. But the force of GRAVITY, or W, acts vertically DOWNWARDS. So the force CAUSING the acceleration is the component of the force of gravity acting down the slope (FD). |
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| 19. |
There are 2 ohm and 3 ohm resistors in a laboratory. In an experiment, the following resistances are required —a. 1 ohm, b. 7ohm, c. 11 ohm respectively. Explain how will you get these resistances using the resistors in the lab. |
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Answer» SORRY brooooooo......... |
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| 20. |
A particle is projected at an angle θ with an inclined plane making an angle β with the horizontal asshown in figure, speed of the particle is u, after time t find :a) x component of acceleration ? b) y component of acceleration ? c) x component of velocity ? d) y component of velocity ? e) x component of displacement ? f) y component of displacement ? g) y component of velocity when particle is at maximum distance from the incline plane ? |
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Answer» ANSWER:x=ucostheta Y=usintheta Explanation: |
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| 21. |
What is measurmentwhat is unit What is si unit |
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| 22. |
0510 1graph of thisDraw velouty timebody |
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Answer» Answer: |
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| 23. |
Which of the following is only attractive force 1) electrostatic 2) gravitational 3) magnetic 4) frictional |
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Answer» Answer: gravitational force Explanation: all forces except gravitational force and FRICTIONAL force exhibit repulsive force as they have both negative as WELL as positive terminals. frictional force dosent show ATTRACTIVE or repulsive force. Gravitational force exhibits only attractive force. hope it helped and pleeeease mark as BRAINLIEST:) |
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| 24. |
A thin converging lens of refractive index of 1.5has a focal power of 5D . When this lens immersed in a liquid it acts a diverging lens of focal length of 100cm. The refractive index of liquid is |
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Answer» Explanation: 1/f=(n-1)1/r1-1/r2 1/5=0.5*x 1/100=(n-1)x 100/5=0.5/n-1 n=1.025 |
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| 25. |
Explain the terms of average velocity and instantaneous velocity? when they are equal |
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| 26. |
wo bodies of masses 10 kg and 2 kg are moving with velocities 2i-7j+3k and -10i +35 j-3k m/s respectively.find velocity of center of masses |
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Answer» Answer: 2k Explanation: Velocity of CENTRE of MASS is GIVEN by V = (m1v1 + m2v2)/(M1 + m2) = (10(2i - 7j + 3k) + 2(-10i + 35j - 3k))/(10 + 2) = (20i - 70j + 30k - 20i + 70j - 6k)/12 = 24k / 12 = 2k |
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| 27. |
If acceleration of a particle moving in a straight linedepends on time t as a = (2kt + 2) m/s2 (k>0), tisin second, then velocity of particle at t = 2 s will be(given velocity at t= 0 is zero)(1) (k + 1) m/s (2) 2(k + 1) m/s(3) 4(k + 1) m/s (4) 2k m/s |
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Answer» YOUR ANSWER IS IN ATTACHMENT:- OPTION (3) IS CORRECT. |
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| 28. |
Definition for the static inertia |
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Answer» Explanation: Inertia means not ACCEPTING change. |
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| 29. |
515 20 €) Draw velouty time graph 9thbody |
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| 30. |
A car travels from A to B with the speed of40 km h' and returns back on the same track atsame point with the speed of 60 km - Averagevelocity will be(1) 60 km -12) Zero(3) 48 km -(4) 50 km h-1 |
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Answer» Answer: Average VELOCITY will be 0 Explanation: Because velocity = displacement/time (Car travels from point A- B & return to point A . Then the displacement will be ZERO.) If the displacement will zero then, Velocity = 0/time Velocity = 0 So, the average velocity will be zero. Hope you will FIND it helpfull. Please follow me. Thank you.... |
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| 31. |
57.Two wooden blocks are moving on a smooth horizontal surace such that themass m remains stationary with respect to block as shown in the figure. Themagnitude of force P |
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| 32. |
A hammer of mass 500 g, moving at 50 m sl. strikeThe nail stops the hammer in a very short time of 0is the force of the nail on the hammer?ns1 strikes a nail.time of 0.01 s. What |
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| 33. |
water is filled in a flask upto a height of 20 cm .the bottom of the flask is circular with radius 10 cm .if the atmospheric pressure is 1.01*10^5 pa the force exerted by water on bottom is |
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Answer» I am not SURE what is the answer |
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| 34. |
Two resistors individually or collectively gives the resistance values 3 ohm, 4 ohm, 12 ohm and 16 ohm respectively. Find the two resistors. |
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| 35. |
A block is sliding on a rough horizontal surface if the contact force on the block is a root 2 X the frictional force of the coefficient of friction is |
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Answer» ANSWER: as the 8 TYRES can GIVE acc , can load half of truck so 8×friction = ma 8× 0.6mg/2 = ma So a is 24 Explanation: |
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| 36. |
The acceleration of particle is given by a =(2-v) m/s2 where v is velocity of particle in m/s. The velocity of particle at time t (at t=0 ,v=0) is |
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Answer» Answer: my answer for this question is v = 1/e^t, if it is correct then thnx for the answer & i will PROVIDE U FULL solution. or else reply to me. |
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| 37. |
(A) 2 m/s(B) 3 m/sis un a uge speed of the particle ?(C) 4 m/s(D) 5 misAn aeroplane flies round a square field PORS of each side 100 kom. Its speed along PQ is 400 latalong QR is 500 km/h, along RS is 600 km/h and along SP is 700 km/h. The average speed of theaeroplane over the entire trip is(A) 316.31 km (B) 475.31 km/h526,32 km/h (D) 652 321h |
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| 38. |
The velocity of particles depends upon time according to eq v= a+bt + c/ d+ t write the dimensions of ; a,b and c |
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| 39. |
My father 2 page essay |
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Answer» Answer: My FATHER is an ideal PERSON of my life. He is my real hero and my best friend ever. He always helps me a lot in my any difficulty. He is an internet marketing manager in a limited company in New Delhi. He is very famous person in his office as well as in the society because of his gentleness and politeness. He is very intelligent man and always helps OTHERS in their problems. He is the BOSS of my family and gives advice and instruction to every family member. He solves problems of the neighbours. He takes me to school on every PTM and discusses my performance with my teacher. Pls Mark this as brainlest |
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| 40. |
পৰ্যবেক্ষণ পদ্ধতিৰ আহিলা সমূহ বৰ্ণনা কৰা |
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Answer» Answer: I can't UNDERSTAND this language Explanation: |
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| 41. |
If metals are not there what will happen to our life |
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Answer» Answer: you will FIND SIMPLY about this in GOOGLE our youtube… there are very INTERESTING video about this in youtube.... but PLS don't delete this answer |
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| 42. |
When light travels from air to another medium the speed of light reduces half. What is the refractive index of the mediu. |
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Answer» Refractive index (n) = (velocity in vacuum or AIR)/(velocity in medium) GIVEN velocity in air = c Velocity in medium = c/2 n = c/(c/2) = 2 Refractive index n = 2 |
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| 43. |
Give examples that diffuse into solid to gases |
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Answer» Explanation: ice and NAILPAINT remover spirit |
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| 44. |
A cylinder rod has resistance R .if we double it length nd diamete what is its resistance |
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Answer» The new resistance become the 4 times of initial value of R. Solution refer in Attachment Thank you |
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| 45. |
R square =A square + B square +2AB Cos theta proof |
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Answer» ANSWER:it is the formula of resultant..... R=under ROOT A2 +B2 +2AB COS theta.. Explanation: |
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| 46. |
Find out dy dx if y =ax3+bx2+c |
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Answer» Answer: 3ax²+2bx Explanation: y=ax³+bx²+C dy/dx = a .d/dx x³ +B d/dx x² +c = a×3x²+2xb+0 = 3ax²+2bx |
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| 47. |
Plzz answer this question with correct explanation dudes |
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Answer» C Explanation: as after t 1... FORCE is CONSTANT... That MEANS accerlation is constant As A = F/m |
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| 48. |
State parallalogram law for addition of two vectors with neat diagram |
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Answer» Answer: If two vectors acting SIMULTANEOUSLY at a POINT can be represented both in MAGNITUDE and direction by the adjacent sides of a parallelogram DRAWN from a point, then the resultant vector is represented both in magnitude and direction by the diagonal of the parallelogram passing through that point. |
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| 49. |
19. In the arrangement shown, the pulley and the string are light andall the surfaces are frictionless. The tension in the string isg = 10 ms?) |
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Answer» SHOW the ARRANGEMENT PLEASE |
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