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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. |
Derive the relationship between Force, Mass and Acceleration. Also derive the SIunit of Force from the expression. |
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Answer» Answer: As per second law of motion: When a force ACTS on something, it makes it accelerate (go faster, slower or change direction). The AMOUNT of ACCELERATION DEPENDS on the size of the force and the MASS of the object. The bigger the force or the lighter the object, more it accelerates. Force = Mass × Acceleration
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| 2. |
Abargraphisarepresentationofnumbersusingbarsofuniformwidth.Thelengthsofthebarsdependuponthefrequencyandthescale,youhavechosen. Reyan Gaming Portal |
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| 3. |
29.i) Define atomic mass unit,ii) What is the numerical value of mole.iii) Name the elements present in oxide ion. |
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| 4. |
(i) Name any three parts in plant cell which differentiate it from an animal cell and mentiontheir function. (ii) Which organelle is known as the powerhouse of the cell? Why? |
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Answer» i) Cell wall Plastids Chloroplast ii)Mitochondria is known as the POWER house of the cell because it provides ATP . Explanation: i)Animal CELLS each have a centrosome and lysosomes, whereas plant cells do not. Plant cells have a cell wall, chloroplasts and other specialized plastids, and a LARGE central vacuole, whereas animal cells do not. ii)Mitochondria are known as the “powerhouse of the cell.” The organelle is responsible for the production of energy in a cell is mitochondria. This is the most vital part of the cell as it takes the FOOD and makes energy for the other parts of the cell. |
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| 5. |
B01 Distinguish between Jsobaric and Isochoric thermo-dynamic process. Il gas compressed adiabaticallyby doingwork of Iso What is the change ininternal energy of the gas?1520 |
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Answer» ozzzjvxlzhfxjgxgxgofihfohfhocofo HF fphcohc |
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| 6. |
15.Assertion: Stretched bow has Potential EnergyReason: Work is done when a bow is stretched and the work done will be store in the formofPotential Energy. |
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Answer» Explanation: Find an answer to your QUESTION 5.Assertion: STRETCHED BOW has Potential Energy Reason: Work is done when a bow is stretched and the work ... |
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| 7. |
Q-5State the microorganisms responsible for the following diseases and their mode oftransmission.(1) Cholera(2) Malaria |
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Answer» Answer: A bacterium called Vibrio cholerae causes cholera INFECTION. ... MALARIA is CAUSED by single-celled microorganisms of the PLASMODIUM group. The disease is most commonly spread by an infected female Anopheles mosquito. |
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| 8. |
Define Kinetic Energy. Write expression for Kinetic Energy.A force of 12N acts on anobject of mass of 4kg in the state of rest for 3s. Calculate the kinetic energy acquired by theobject.please give ans in 100-120 words |
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Answer» KINETIC energy is a property of a moving object or particle and depends not only on its motion but ALSO on its mass. The kind of motion may be TRANSLATION (or motion along a path from one place to another), rotation about an axis, vibration, or any combination of motions ke =1/2 mv^2. or. k.e = (force)^2 ×(time)^2 /mass in ur case F=12 N M=4kg T=3 s so ke. = (12)^2 ×(3)^2/4 =324 j ans please mark it brainliest. |
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| 9. |
The group of plants that bear naked seeds are calledThe micro organisms which helps in the formation of soil is |
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Answer» Answer: |
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| 10. |
I) Shishir returned from school and found his mother is busy in the kitchen. He noticed that she ismaking dosa. Shishir rushed to his mother as he was feeling hungry and found that tap in the kitchen was leaking. He told his mother to replace it as leading to wastage of water. His mother smiled and ensured him to do the same. a) What is water management? b) What role can an individual play in the conservation of water? |
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Answer» not UNDERSTAND SORRY |
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| 11. |
Antibiotics commonly block biochemical pathways important for the growth of(A) Virus (B) Bacteria (C) Protozoa (D) All above SECTION B 21. Write any two differences between Distance and Displacement2 22. A car starts from rest and attains a velocity of 20m/s in 5s. Calculate the distance during this time. 2 23. Write the formula of Calcium and Sulphate ions. Also write the formula of the compound between them. (Or) Find the molecular mass of H2O.2 24. When Magnesium ribbon is burnt in air, write any two observations and name the type of the reaction. 2 25. Write two differences between mass and weight. 2 26. Name the different components of xylem and draw a living component?Or Differentiate between voluntary and involuntary muscles. Give one example of each type. 2 SECTION C 27. Name the method used to separate the following mixtures. a) Miscible liquids b) Dye from ink c) Components of air. 3 28. i) Draw the sketch of Bohr model of atom ii) What do you mean by ATOMIC NUMBER. iii) How many electrons can be accommodated in n=3 shell in Bohr model of atom. 3 29. i) Define atomic mass unit. ii) What is the numerical value of mole. iii) Name the elements present in oxide ion. 3 30. State Newton’s second law of motion. Derive F = ma 3 31. Give three features of cardiac muscles. How can distinguished from skeletal muscle. 3 |
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Answer» d) All of the above Explanation: 29. i) a UNIT of mass used to express ATOMIC and molecular weights, EQUAL to ONE twelfth of the mass of an atom of carbon-12. |
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| 12. |
The net force acting on the object in figure is(A) zero (B) 2N right side of the body (C) 2N left side of the body (D) None |
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Answer» ACC..to me a will be the answer |
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| 13. |
I) Compare optical, filtration and stability properties of True, Colloidal and Suspensionsolutions. ii) Classify Gum in water, Blood, Copper sulphate solution in water, Chalk dust in water as true/ colloidal/ suspension solutions. |
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Answer» ans down Explanation: utter from CURD can be separated by the technique of centrifugation. (ii) Salt from sea water can be separated by the technique of crystallization or by the EVAPORATION. (III) Camphor is sublimable but salt is not. So, camphor can be separated from salt sublimation technique.10-Mar-2018 |
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| 14. |
What is an Atom ?••••• ( kya kar rahe hai ) |
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Answer» Answer: An atom is the SMALLEST unit of ordinary matter that FORMS a chemical element. Every solid, liquid, gas, and plasma is composed of neutral or IONIZED atoms. Atoms are extremely small, typically around 100 picometers across. study Kar raha hu app Kya Kar Rahe HO |
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| 15. |
Name the technique to separatea) butter from curdb) salt from sea water c) camphor dry salt |
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Answer» Answer: camphor DRY salt Explanation: (i) The separation can be done by carrying centrifugation in a CENTRIFUGAL machine. (ii) The separation can be done either by crystallisation or by EVAPORATION. (iii) The process of sublimation helps in separating camphor from salt. |
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| 16. |
What doyou mean by chloride shiftmovement of cl ions from plasma othe RBGHCO3-(Iion from RBCHCO3 - from RBCn |
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Answer» Explanation: Chloride shift (also known as the Hamburger phenomenon or lineas phenomenon, named after Hartog Jakob Hamburger) is a PROCESS which occurs in a cardiovascular system and refers to the exchange of BICARBONATE (HCO3−) and chloride (Cl−) across the membrane of RED blood cells (RBCs). |
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| 17. |
If an object's speed and direction of motion changes then it is moving withuniform velocity. true or false |
Answer» TRUEExplanation: your answer is : true |
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| 18. |
2.17. Thevenin's equivalent (Eth, Rth) for thecircuit shown in Fig. 2.25 will be(a) 16.5 V, 62 (6) 12.5 V, 32(c) 10.5 V, 22 dy 1.5 V, 1.5 22210V.622alFig. 2.25 |
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Answer» utdgdnfusrydhhf Explanation: jumrtytjyuk |
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| 19. |
The homogeneous mixture of two or more metals or a metal and non-metal iscalled on alloy. true or false |
Answer» The GIVEN STATEMENT is TRUE |
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| 20. |
Define the following terms in the context of spherical mirrors:i. Centre of curvature ii. Principal axisiii. optical centreiv. aperturev.focus |
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Answer» Explanation: 1.Centre of curvature of a spherical mirror is defined as the centre of the sphere of which the spherical mirror is a PART. 2.A LINE joining the pole P to centre of curvature of the mirror, produced on both SIDES is called principal axis of mirror. 3.The Optical centre of the lens is defined as the point which lies on the principal axis through the rays of light passes without any deflection or it can be defined as the central point of the lens through which a ray of light passes without suffering any deviation. 4. The length of the straight line joining the points of extremities of a spherical mirror is called the aperture. 5.When rays from infinity come in parallel to the optical axis of a spherical mirror, they are bent so that they either converge and INTERSECT in at a point, or they seem to diverge from a point. The point of convergence or divergence is called the focus. |
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| 21. |
Based on the above information which of the following infectious disease is considered asendemic (i) COVID-19,(ii) African Sleeping Sickness, (iii) Malaria, (iv) Cholera (A)- (i), (ii), (iii) and (iv) (B) - (i), (ii), (iii) only (C) - (ii), (iii) only (D)- (i), (iii), (iv) only |
Answer» malariaExplanation: i don't KNOW answer |
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| 22. |
The atomic number of three elements A, B and C are 11,17 and 6 respectively. Findthe valency of A, B and C. |
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Answer» Answer: (i) ● The electronic configuration of element A is: 2,8,1. NUMBER of valence electrons=1 So, it belongs to 1ST group. ● electronic configuration of element B is:2,8,4. It CONTAINS 4 valence electrons, so it belongs to 14th group. ● electronic configuration of element C is: 2,8,7. It contains 7 valence electrons, so it belongs to 17th group. (ii) The element B is SI and it has a valency of 4. The element C is Chlorine and it has a valency of 1. So the formula of compound when B reacts with C is SiCl4.Read more on Sarthaks.com - https://www.sarthaks.com/950932/the-atomic-number-of-three-elements-a-b-and-c-are-11-14-and-17-respectively |
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| 23. |
Eill in the missing ward.name is Mariam andsistersmyFatimai2my birthday isI'm 22 years oldTuesday3 I was born in Dubai butal ain nowSheay My mother was born in OmanIlines in the UAE now.I'm a doctorI works in a hospitalI don't like |
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Answer» Eill in the missing ward. name is MARIAM and sisters my Fatimai 2 my BIRTHDAY is I'm 22 YEARS old Tuesday 3 I was born in Dubai but al ain now |
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| 24. |
Q19.(i) The following figures show the path of light rays through three lenses marked L1,L2 and L3 and their focal points F1, F2 and F3, respectively.Out of L1, L2 and L3 lens/lenses is/are(a) only L1(b) only L2(C) only L3(d) Both L1 and L3 |
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| 25. |
Recentlyabanonplasticbaghasbeenimposed?Isbanjustified?Givereason. |
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Answer» Answer: i. Plastic is non-biodegradable waste. ii. People THROW plastic in RIVERS and seas which causes threat to the marine and aquatic life. iii. DRAINAGE systems are choked because of the improper disposal of plastic. Hope it helps |
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| 26. |
Determine the energy required to dissociate a NACL molecule into NA and CL atom given that electron affinity of CL is 3.70 cv the first ionization potential of NA is 5.14 ev and separation of NACL at equilibrium is 0.236 nmye question Bata do |
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Answer» Answer: The classic CASE of ionic bonding, the sodium chloride molecule forms by the IONIZATION of sodium and chlorine atoms and the attraction of the resulting ions. An ATOM of sodium has one 3s electron OUTSIDE a closed shell, and it takes only 5.14 electron volts of energy to remove that electron |
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| 27. |
Ii) A student gradually adds dilute ferroussulphate solution to a conical flask containingacidified potassium permanganate solution.The light purple colour of the solution fadesand finally, it becomes colourless. Which ofthe following is correct regarding the aboveobservation?(a) Potassium permanganate oxidises ferroussulphate. (b) Potassium permanganate reducesferrous sulphate. (c) Ferrous sulphate oxidisespotassium permanganate. (d) Potassiumpermanganate is an unstable compound andundergoes decomposition to form a colourlesscompound |
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Answer» option a. Since Potassium permanganate (KMnO₄) is QUITE an UNSTABLE compound, it tends to decompose in the presence of FERROUS sulphate (FeSO₄). This changes the colour of the solution from PURPLE to colourless. |
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| 28. |
A gas fills completely the vessel in which it is kept.(b) A gas exerts pressure on the walls of the container.(c) A wooden table should be called a solid.(d) We can easily move our hand in air but to do the same through a solid block of wood we need a karate expert. |
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Answer» Answer: |
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| 29. |
27. Kavita observe that pencil sharpener made up of plastic get attracted towards themagnet, she wondered how it happened? Help her to find out the answer. |
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Answer» The blade of a pencil sharpener is made of iron which is a MAGNETIC MATERIAL. DUE to this, a pencil sharpener gets attracted towards both poles of a MAGNET. |
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| 30. |
The image formed in ahole camera is always invertedlight zravle in sraight lines.Trulwhat are luminous objectewhat is Prismthat is constellation |
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| 31. |
2. इकाई सेल व क्रिस्टल जालक से आप क्या समझते हैं ?What do you understand by crystal Lattice andटार्स शलजे नियम को समझाइये। |
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Answer» Explanation: hhhyy6 I don't KNOW if you yyyyhyyhgy I don't know if you NEED anything ELSE from me PLEASE LET me y6rii you need anything |
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| 32. |
11. Assertion : Two similar trains are moving along the equatorial line with the same sbut in opposite direction. They will exert equal pressure on the rails.Reason: In uniform circular motion, the magnitude of acceleration remains constathe direction continuously changes.a. Assertion and reason both are correct statements and reason is correctexplanation for assertion.b. Assertion and reason both are correct statements but reason is not correcexplanation for assertion.c. Assertion is correct statement but reason is wrong statement.d. Assertion is wrong statement but reason is correct statement.is also a unit vector, the magnitude |
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Answer» Answer: both assertion and reasons are CORRECT but R is not the correct EXPLANATION of A |
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| 33. |
Name the method used to separate the following mixturesa Miscible liquidsb) Dye from ink c) Components of air. |
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Answer» Answer: a) Simple distillation: Simple distillation is a METHOD used for the separation of components of a MIXTURE containing TWO miscible liquids that boil without decomposition and have sufficient difference in their boiling points. b) BLUE or black dye can be separated from ink by the PROCESS of evaporation. Ink is a colloidal solution and a heterogeneous mixture of dye and water. Heating leads to evaporation of water. This leaves behind dye in watch-glass. |
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| 34. |
A solution has 50g of salt in 320g of water. Calculate the mass percent of the salt in thesolution. ii) Name any one Metalloid. |
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Answer» Mas of common salt (SOLUTE)=40 g Mass of water (soluted) =320 g mass of SOLUTION=320+40 =360 g concentration of solution=massofsolutionMmassofsolute×100 36040×100=11.11% HENCE, the concentration of the solution is 11.11% I hope it helps you |
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| 35. |
Match the following:Column I1. Pinna2. Auditory nerveColumn IIa. Connects inner ear to the brainb. Converts the vibrations intoelectrical signalsc. Collects sound wavesILplease give me correct answers |
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Answer» Explanation: |
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| 36. |
Write expression for Kinetic Energy.A force of 12N acts on anobject of mass of 4kg in the state of rest for 3s. Calculate the kinetic energy acquired by the object |
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Answer» Answer: |
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| 37. |
Q1. (B) Grammar - Do as directed.duck is bird. (Use proper articles in the blanks a, an, the)2) The man who follows when climbing has a difficult job both in climbing up and climbingdown. (Identify one verb and one adjective from above sentence)3) I had written the email before he apologized.(identify the tense of above sentence) |
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Answer» (2) verb - climbing Adjective - DIFFICULT |
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| 38. |
Iv) The example of inert gas in given below is.a) Oxygenc) Nitrogenb) Neond) Carbon monoxide |
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| 39. |
37. Draw the diagram of simple electric circuit including cell, bulb and switch. सेल, बल्ब और स्विच सहित सरल इलेक्ट्रिक सर्किट का आरेख बनाएं। |
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Answer» Hope it's HELPFUL ✌️✌️
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| 40. |
Fill in the blanks1.Of the abiotic factors that affect biodiversity by far the most important is_________. |
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Answer» HOPE it's correct |
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| 41. |
Write the molecular formulas of the following compounds.(a) Aluminium nitrate (b) Calcium Fluoride (c) Sodium oxide (d) Aluminium sulphate (e) Calcium hydroxideAnswer correct |
Answer» SODIUM OXIDE is WRITE Answer |
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| 42. |
Exercise: Arrange the following stages of the Big Bang theory. Use 1 as the firststage and 5 as the last stage.1. Electrons bind to ionized protons and nuclei to form neutral atoms. 2.As it expanded, the universe cools down.3.Protons and neutrons come together to form nuclei by nucleosynthesis. 4. The universe may have begun as an infinitely hot and dense initialsingularity.5. After the Big Bang, all of it then began to rapidly expand in the process known as inflation. |
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Answer» not UNDERSTAND SORRY |
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| 43. |
.Namethe4C’Soflearningin21stcentury.please hurry up I need answer Imidetli |
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Answer» •Critical thinking •Creative thinking •Collabarating •Communicating |
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| 44. |
Assertion:Most of the α (alpha) particles passed through Gold foil in Rutherford’sexperiment. Reason: According to Rutherford, electrons revolve round the Nucleusa) Both A and R are true, and R is correct explanation of the assertion. b) Both A and R are true, but R is not the correct explanation of the assertion. c) A is true, but R is false. d) A is false, but R is true. e) A and R are false |
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Answer» Explanation: b is your ANS this ans is veryfiyed |
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| 45. |
Give any two examples of biomass ?who is smart boy and looking beautiful then u will dm me in ins*tagram |
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Answer» Answer: Biomass is a COLLECTIVE term for all PLANT and animal material. A number of different forms of biomass can be burned or digested to produce energy. Examples of biomass include wood, straw, poultry litter and energy CROPS such as willow and poplar grown on short rotation coppice and miscanthus. Explanation: KAR CHUKA HA DM YAR |
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| 46. |
Mpostinginto a nutrient rich fertMatch the followingwhite revolutionEggTransportationLeguminous plantsBuffaloMilken manure| Farmingsedzed1 Say True or False. If false, correct the statementis done on a commercial scale.Vermicompost can be used to clean sewage.Leguminous plants fix nitrogen in the leaves of the plantsNamakkal district is famous for dairy farm.Murrah is a buffalo breed.Ainghe |
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Answer» PLEASE MARK me BRAINLIEST |
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| 47. |
While doing the experiment of percolation in your field you found that 400ml water takes 10minutes time then what is the percolation rate of the land? |
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Answer»
Percolation time = 40min Rate of percolation = Amount of water in mL / Percolation time in min =200 / 40 =5 mL/min. Hence, the rate of percolation of water through the given soil SAMPLE is 5 mL/min. |
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| 48. |
रातमjबािरशकेकारणखलु ेम jपड़ासीमjटकाबैगगीलाहोजाताहै।िदनकेसमयसरजकीरोशनी ते जहोतीहै।आपको®लगताहैिकसीमjटमj कौनसा बदलावआयाहै?®z |
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Answer» its not CLEAR |
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| 49. |
. WHICH OF THE FOLLOWING ANIMALS TAKES A LONG DEEP SLEEP IN WINTER?A) DOGSB) LIZARDSC) TIGERS |
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Answer» LIZARDS it is the animals Explanation |
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| 50. |
Which activity would you do to prove that the temperature of a substance must reachthe combustion point of that substance in order to ignite it? |
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Answer» Answer: Some substances, like magnesium catches fire and burns with a dazzling WHITE flame when heated in air. Similarly, when a PIECE of per is brought near a candle flame, it burns, producing heat and light. The charcoal and coal bums in air producing carbon dioxide, heat and light. Air or oxygen which helps in burning is called supporter of combustion and the chemical reaction which takes place with the release of heat and light energy is called combustion. A chemical process in which a substance reacts with oxygen to give off heat is called combustion. (a) Charcoal burns in air to give carbon dioxide and heat. C + O2 → CO2 + Heat Explanation: HOPE this will help you... |
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