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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. |
Which is odd one out give reasons for your choice 1.mass,volume,density,speed |
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Answer» Explanation: |
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| 2. |
A well20m deep and 3m in diameter contains water to a depth of 14 m.how long will a 5 HP engine take to empty it |
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Answer» Answer: |
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| 3. |
A person is standing on a weighing machine and observes that the reading is 60 kg, then suddenly jumps and observes that reading goes to 70 kg. Then his maximum upward acceleration is 1)g/6 2)g/4 3)g/3 4)g/2 plz explain in detail |
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Answer» g/6 Explanation: FORCE CAUSING the acceleration: 70-60= 10 mass of the BODY= 60/g acceleration= 10/(60/g) = g/6 |
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| 4. |
How does resistance of conductor changes with rise in temperature |
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Answer» Answer: with the rise in TEMPERATURE the resistance GET decreases R=1/T |
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| 5. |
A force F=(2i^+5j^+k)N is acting on a particle.the particle is first displaced from(0,0,0) to(2,2,0)m along the path x=y and then from (2,2,0)m to (2,2,2)m along the path x=2m,y=2m. The total work done in the complete path is |
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| 6. |
Motion of pendulum uniform or non-unniform |
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Answer» the MOTION of pendulum is UNIFORM motion Explanation: |
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| 7. |
Converted one form to another form from the lesson of law of motion..................... |
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Answer» Answer: 6.67×10*-8dyne.cm²/gm² |
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| 8. |
A body of mass M starts sliding down on theinclined plane where the critical angle is ACB = 30° as shown in figure. The coefficient ofkinetic friction will be(1) Mg/√3(2) √3 Mg (3) √3(4) None of these |
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Answer» Answer: |
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| 9. |
How to be a good boy in class |
Answer» <U>BE CONFIDENT ABOUT WHAT U SPEAK IN CLASS ........... |
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| 10. |
Give examples ofinstrumental error systematic error personal error accidental error |
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Answer» Answer: syetemeti ERROR ex:.Measuring your HEIGHT is affected by MINOR posture CHANGES. |
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| 11. |
If the pressure produced the forces over am area of 100cm square is 30pascal |
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Answer» Force=3000N. Explanation: PRESSURE =Force×Area 30pa=f×0.01m² f=3000N. |
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| 12. |
❤️...HELLO...❤️❤️Hardik❤️Nikk❤️vicky❤️Define foregut or stomodaeum ?? |
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Answer» Hello The ANTERIOR part of the ALIMENTARY canal of an EMBRYO, from the mouth to the DUODENUM. |
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| 13. |
QUESTION 12What is included in vector quantities but not scalar quantities?A measurementMagnitudeDirectionA number value |
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Answer» DIRECTION is the QUANTITY which is included in vector QUANTITIES but not in scalar quantities Explanation: direction |
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| 14. |
On what basis do we choose the method of separation |
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Answer» Answer: Hi mate. Commonly used METHODS of separation are hand-picking, seiving,washing filtration, magnetic separation, SEDIMENTATION,decantation,evaporation, distillation,etc. Hope you find this USEFUL. |
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| 15. |
When the distance travelled by a body is directly proportional to time it is travelling with |
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Answer» SPEED is constant Explanation: |
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| 16. |
How many no. of rays originate from an object which acts like a point source of light? |
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| 17. |
A stone of 200 N falls through aheight of 26 meter on a nail andpenetrates the nail 5cm in theground. The K. E of the stone justbefore it hit the nail is:A)B)C)D)26,00 Pound52.00 Joules54,00 Frg52,00 watt |
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| 18. |
Why metals are good conductors of heat? |
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Answer» Explanation: Their are 2 points: Metals IONS are closely packed in the metal lattice 2 .AVAILABILITY of FREE ELECTRONS |
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| 19. |
A particle moves 3 m north, then 4 m east, and then 12 mvertically upwards, its displacement is(1) 12 m(2) 13 m(3) 19 m(4) 15 m |
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Answer» Answer: 13 North and EAST are on one plane so their displacement is 5m by PYTHAGORAS theorem.Now 12m upward is in another plane (imagine a TRIANGLE having BASE length 5m and 12 m high) .so displacement will be 13m by Pythagoras |
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| 20. |
e) )একটি সিলিং ফ্যানের সুইচ অন্ করলে পাখাটি প্রথম 3 s সময়ে 10 বার ঘােরে। পরবর্তী 3 s-এ পাখাটি আরও কতবার ঘুরেবে? |
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Answer» who's KNOW that language. sorry. okay. |
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| 21. |
Please Explain basic Trigonometry required in physics in std11 |
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Answer» Explanation: Introduction to logarithms Intro to logarithms (OPENS a modal) Intro to Logarithms (Opens a modal) Evaluate logarithms Evaluating logarithms (ADVANCED) (Opens a modal) Evaluate logarithms (advanced) Relationship between exponentials & logarithms (Opens a modal) The constant e and the natural logarithm and compound interest (Opens a modal) as a limit (Opens a modal) Evaluating natural logarithm with calculator (Opens a modal) Slope Intro to slope (Opens a modal) POSITIVE & negative slope (Opens a modal) Slope from graph Worked EXAMPLE: slope from two points (Opens a modal) Slope from two points Slope review (Opens a modal) Slope of a horizontal line (Opens a modal) Basics of trigonometry Trigonometric ratios in right triangles Solve for a side in right triangles Sine & cosine of complementary angles (Opens a modal) Trig ratios of special triangles (Opens a modal) Reciprocal trig ratios The unit circle definition of sine, cosine, and tangent Unit circle (Opens a modal) The trig functions & right triangle trig ratios (Opens a modal) Trig unit circle review (Opens a modal) The graphs of sine, cosine, and tangent Graph of y=sin(x) (Opens a modal) Graph of y=tan(x) (Opens a modal) Intersection points of y=sin(x) and y=cos(x) (Opens a modal) BASIC trigonometric identities Sine & cosine identities: symmetry (Opens a modal) Tangent identities: symmetry (Opens a modal) Sine & cosine identities: periodicity (Opens a modal) Tangent identities: periodicity (Opens a modal) Evaluating functions What is a function? (Opens a modal) Worked example: Evaluating functions from equation (Opens a modal) Evaluate functions Worked example: Evaluating functions from graph (Opens a modal) Evaluate functions from their graph Inputs and outputs of a function Worked example: matching an input to a function's output (equation) (Opens a modal) Function inputs & outputs: equation Worked example: matching an input to a function's output (graph) (Opens a modal) Worked example: two inputs with the same output (graph) (Opens a modal) Function inputs & outputs: graph Maximum and minimum points Introduction to minimum and maximum points (Opens a modal) Worked example: absolute and relative extrema (Opens a modal) Relative maxima and minima Absolute maxima and minima Intervals where a function is positive, negative, increasing, or decreasing Increasing, decreasing, positive or negative intervals (Opens a modal) Worked example: positive & negative intervals (Opens a modal) Positive and negative intervals Increasing and decreasing intervals Interpreting features of graphs Graph interpretation word problem: temperature (Opens a modal) Graph interpretation word problem: basketball (Opens a modal) Graph interpretation word problems |
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| 22. |
a person of mass 55kg is standing on a weight machine placed in a lift a=1.2 calculate the reading of weight machine |
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Answer» the READING of the MACHINE will be m(g+a) then,55(9.8+1.2)=11×55=605 |
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| 23. |
A weight lifter lifts a weight Off the ground and holds it up then work done is |
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Answer» WORK done = |
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| 24. |
When the number of nucleons in nuclei increase, thenthe binding energy per nucleon(a)-increases continuously with mass number(b) decreases continuously with mass number(c) remains constant with mass number(d) first increases and then decreases with increase of massnumber |
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| 25. |
When object is balanced in rest position or in equilibrium |
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Answer» when the value of net force on the OBJECT is 0. This MUST be in vector FORM. |
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| 26. |
Write an activity to prove that turmeric is a natural indicator using soap solution |
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Answer» Turmeric is a natural indicature because turmeric occurs naturally and when it comes in contact with the soap, it runs red because soap is acidic and as we know acids change the litmus paper red, hence turmeric is a natural indicator. Activity is simple, just take turmeric or turmeric POWDER and a soap. Then ADD the soap Iin it. We observe that the color of the turmeric CHANGES to red. this is because Soap is acidic. Hope it helped!! |
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| 27. |
Two blocks of mass 10 kg and 50 kg are free to move.The coefficient of friction between the blocks is 0.5 and there is no friction between 50 kg block and the ground .The minimum horizontal force F that is applied to hold 10 kg block against 50 kg block is |
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| 28. |
Give one eg of chemical reactiona/ change of colourb/ formation of precipitat |
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| 29. |
The displacement (in m) of a body varies with time / (in )as x=--2/3*t^2 +16t +2. How long does the body take to come to rest ? |
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Answer» It will take 12 sec for the BODY to come at REST moving according to the given relation |
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| 30. |
Write any two diseases and their spread |
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Answer» Answer: HIV aids - it SPREAD DUE to Infacted Aids DNA while Doing Sex.TV - It spread due to talking with infected TV PERSON |
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| 31. |
What do you understand by potencial difference |
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Answer» Answer: work done to move q COLOUMB charge in t seconds from ONE point to another is called POTENTIAL DIFFERENCE |
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| 32. |
What the friction of air &Water called??? |
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Answer» Explanation: Air resistance is a type of friction between air and another material. For example, when an aeroplane FLIES through the air, air PARTICLES hit the aeroplane making it more difficult for it to move through the air. It's the same for an object moving through WATER. If you go SWIMMING, there is friction between your skin and the water particles. This is KNOWN as water resistance. Hope it helps! |
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| 33. |
What changes in focal length when a mirror is dip into water?? |
Answer» Hii mateThe focal length of a LENS is very MUCH affected when immersed in water. The reason is that the angle of refraction is dependent on the RELATIVE DIFFERENCE between the indices of refraction of the incoming medium and the medium of the lens. ... Your eyes' focal length change dramatically thanks |
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| 34. |
What are the types of Quantum numbers and explain for 5 marks |
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| 35. |
a rectangular block of mass 5 kg is kept on a horizontal surface the coefficient of friction between the block and the surface is 0.2 if a force of 20 newton is applied to the block at the angle of 30 degree the with the horizontal plane what is the force of friction on the block |
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| 36. |
How is force of gravity a constant force |
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Answer» Explanation: As the earth has the largest mass than any other SUBSTANCE on earth . The force on any two object or more objects on earth is KNOW as gravitational force . As the mass remain constant ,the will also remain constant . Therefore , the force of GRAVITY is a constant force. |
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| 37. |
Gases have least density compared to solid and liquid |
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Answer» Explanation: As the volume of the substance increases, its density decreases. Gases have HIGHER intermolecular space COMPARED to solids and liquids. As the molecules in a gas are spread APART, they have COMPARATIVELY lesser number of molecules in a GIVEN volume , as compared to solids and liquids. |
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| 38. |
Why do we prefer a convex mirror as a rear view mirror in vehicles |
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Answer» We PREFER convex MIRRORS as rear view mirrors as they PROVIDE a wide range of view to the driver. |
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| 39. |
What is quantization of charge? |
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Answer» QUANTISATION of CHARGE means net charge on any object is the integral multiple of the charge on ONE electron its q=ne q is the net charge n is any integer e is the charge on an electron which is 1.6 multiply 10^-19 |
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| 40. |
What is electricity? |
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Answer» A FORM of ENERGY resulting from the existence of charged particles (such as ELECTRONS or protons), either statically as an accumulation of CHARGE or dynamically as a current.. |
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| 41. |
Please answer me this question |
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Answer» Hey mate |
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| 42. |
Define Total internal reflection |
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Answer» The COMPLETE reflection of a light RAY REACHING an interface with a less dense medium when the ANGLE of incidence EXCEEDS the critical angle |
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| 43. |
What is the si unit of velocity |
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Answer» ɧeՎ ԲՐɿeՌԺ |
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| 46. |
Calculate the number of metric tons in a teragram. |
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Answer» we KNOW that so, |
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| 47. |
A pendulum consisting of a mass less string of length 20 cm of a tiny bob of mass 100 g is set up as a conical pendulum it's bob now perform 75 rpm calculate kinetic energy the bob |
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| 48. |
6) A uniform chain of length L is kept on a table so that one- third of chain hangs freelyfrom the edge of the table. Calculate the work done in pulling the chain back on the table. (3) |
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Answer» Answer: 3.6J is the answer Explanation: MARK me as BRAINLIEST |
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| 49. |
Choose the correct option to fill in the blank.1. Abody is said to be(at rest/in motion) when its position changes withthe surroundings. |
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Answer» in MOTION Explanation: |
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| 50. |
5. The size of mirror is indicated by its :focal lengthRadius of curvatureApertureNone of these |
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Answer» Answer: aperture Explanation: hope it HELPS you because focal length is half of DISTANCE of radius of curvature aperture is known as reflecting surface and they are not given but obvieosly this is right they show that what is size of mirror hope it helps you mark as brainlist |
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