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. |
Definition of peroxide and superoxide and difference between them..!!.. |
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Answer» superoxide having oxidation STATE = -1/2 where as PEROXIDE having oxidation state =-1(the MAIN difference between them) |
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| 2. |
What are herbage vegetables |
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Answer» tion:In GENERAL use, herbs are plants with savory or aromatic properties that are USED for flavoring and garnishing FOOD, medicinal PURPOSES, or for fragrances; excluding vegetables and other plants consumed for MACRONUTRIENTS. |
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| 3. |
India ka first Prime Minister kaun tha |
| Answer» PANDIT JAWAHARLAL NEHRU was the first PRIME Minister of India | |
| 4. |
Define active transport ?? |
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Answer» TransportMovement of MOLECULES from LOW CONCENTRATION to HIGH concentration by using energy. |
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| 5. |
Name and explain in one sentence is the steps involved in converting cotton growing on plants to cotton. What are the uses of cotton clothes |
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Answer» ⊷ ❍⊷⊶⊷⊶⊷⊶⊷✶ Cotton is reaped.Cotton is reaped.It is MADE into fibres.Cotton is reaped.It is made into fibres.It is SPUN to make a yarn.Cotton is reaped.It is made into fibres.It is spun to make a yarn.Yarn is made into fabric.Cotton is reaped.It is made into fibres.It is spun to make a yarn.Yarn is made into fabric.Fabrics are STITCHED to make garments.HVE A NYC DAY AHEAD ✶⊶⊷⊶⊷⊷⊶⊷ ❍⊷⊶⊷⊶⊷⊶⊷✶. |
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| 6. |
Why do we need to conserve forests?why do you think it is important to conserve forests |
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Answer» Forest are our LIFELINE..if we cannot conserve them ..then Human LIFE will be destroyed..Because forest GIVE us wood ,timber, oxygen and woods for making HOUSES .Hope it HELPS you. |
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| 7. |
CT scan cannot done by....? 1.MRI 2.Conventional radiography 3.bone scan 4. ultra sound 5.barium meal/enema |
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Answer» option 4Explanation:because SOUND CANT HELP in DETECTING ONSIDE our body parts |
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| 8. |
Ribosomal RNA is actively synthesized in ??? |
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Answer» NUCLEOLUSHope it will HELP you so PLZZ FOLLOW me and mark it as brainlist ANSWER ☺️ |
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| 9. |
Why cannot do find Polar Bears living in plains |
| Answer» AR bear are a species of bears which adapted themselve for cold areas like artic and antartic regions.They have high thick FUR and changed ti WHITE colour to adaptiveness. These are not found in plains as these are adaptive bears which have different colour according to surroundings. The BREARS found in plains are usually BLACKISH brown in colour due to different habitats and climates.HOPE IT HELPS... | |
| 10. |
Explain with the help of a labelled diagram and experiment to show that liquids expand when heated |
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Answer» Take a test tube completely FILLED with coloured WATER, such that in its mouth is fixed a stopper containing a long glass tube. Let the level of liquid in glass tubing be at A. Place the test tube in a beaker, containing boiling hot water. It is observed that first level of water FALLS to B and then rises up to C. The fall in level of liquid can be attributed to the FACT that initially only the glass tube, being in direct contact with the water bath, expands; but not the water. However, the level of liquid rises to C, when liquid starts expanding. Thus, experiment proves: 1. Liquids expand on heating 2. Since BC > AB, liquids expand more than solids for the same RISE in temperature. |
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| 11. |
1. Write detailed answers? a. Explain the difference betweenpotential energy and kinetic energy. |
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Answer» Difference between 1) The energy concerned with the objects in motion or action is called KINETIC energy.potential energy is defined as the energy contained in the OBJECT, as a result of its state of rest.2)Kinetic energy can be transferred between objects. On the other hand, potential energy cannot be transferred between objects.3) While kinetic energy is MEASURED from the place itself, potential energy is measured from the bottom.4) Kinetic energy is relative to the environment of the moving BODY. As against this, potential energy is non-relative to the environment of the physical body.5) Kinetic energy can be determined by speed/velocity or mass of the object in motion. CONVERSELY, the factors that ascertain potential energy are mass, gravity and height/distance of the object.Explanation:Hope its help youPlease mark as BRAINLIST!!!! |
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| 12. |
Ramit set up the circuit below for purification of copper: |
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Answer» For PURIFICATION of copper in the process of electrolysis we can KEEP copper in anode and in cathode we can keep IRON and as a SOLUTION we can keep copper SULPHATE solution. So when the iron would displace copper, the purification will occur |
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| 13. |
Mention two characteristics of each acids , bases and indicator |
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Answer» aste sour while bases taste BITTER. An ACID reacts with metals to produce bubbles of hydrogen gas while a base feels slimy to the touch. Acids TURN blue litmus PAPER red while bases turn red litmus paper blue. |
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| 15. |
Manan is a very intelligent, honest and truthful boy. However he is also lazy and careless. His teacher recognizes his potential and keeps on telling him that his lazy and careless nature act like friction in his life. She always appreciates his abilities and good leadership qualities. She guides, encourages and motivates him to overcome his shortcomings. Manan is improving his habits and is thankful to his teacher for her concern and efforts. a. State any two values displayed by Manan.b. Name any two values that one can associate with Manan's teacher.c. Why does Manan's teacher compare his habits with the force of friction? |
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Answer» s mana's teacher COMPARE his habits with the FORCE of FRICTION? |
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| 16. |
What's the general theory of relativity and special theory of relativity |
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Answer» relativity, also known as the general theory of relativity, is the geometric theory of gravitation PUBLISHED by Albert EINSTEIN in 1915 and the CURRENT DESCRIPTION of gravitation in modern physics. |
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| 18. |
Explain why it is easier to keep an object moving then to start it from rest? |
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Answer» Because of friction -This MEANS it takes some energy to get the OBJECT UN STRUCK , per say ,from the surface it is sitting on .This energy is in ADDITION to the energy that it takes to accelerate the object . |
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| 19. |
What is taxonomic category |
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Answer» Taxonomiccategory is a RANK or group of ORGANISMS DEVELOPED on the basis of their fundamental CHARACTERISTIC similarities and dissimilarities. |
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| 20. |
Speech on gadgets have restricted our imagination |
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Answer» Though technology is a boon, many children are slowly getting addicted to it. Gadget hygiene, like physical hygiene or emotional hygiene, is very important for the family to prevent its misuse. Following are some ways to keep a tab on the wrong use of technology.Whenever a cell phone is given to a child, do not provide it as an incentive, as a gift for birthday, for scoring well in exams or for any achievement. Give it just like how ONE gives a shoe or a raincoat for daily use. Never create an aura around it or do not view it as an item such as a football or a cricket bat.Health of the cell phone is very important. So, let it sleep after a particular time at night on a designated table that is its bedroom. All phones should lie there at night and should not be a companion next to the pillow or under a bed sheet. Parents should ADHERE to this rule, so that children FOLLOW the same.Cell phones or laptops need not accompany children during study time. Be firm on this rule. Parents should not move around with theirs, too, while roaming around the house. Some kids insist that they need to listen to music or connect with their friends while studying, but this should be dissuaded.Laptops or Internet access for children needs to be in open space, preferably the DRAWING room. Children need to know that laptops are neither sedatives nor pillows to help them sleep. Staying up late at night regularly with gadgets destroys the sleep cycle and subsequently, health.Children need to play with their hands and legs and not their fingers. Even if their friends are not around, they may go for a run, RIDE a bicycle or indulge in any physical game. Playing games on the Internet or a cell phone while waiting outside a doctor’s clinic or during a short break while studying is not advisable.Explanation: |
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| 21. |
What are advanced organisms |
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Answer» Advanced ORGANISMS are the ones which have evolved recently and USUALLY causes more COMPLEX and elaborate structure. |
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| 24. |
List down the main organs of the nervous system Name the structure that protects the spinal cord.Name the process of fusion of an egg with a sperm |
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Answer» :- Question 1 :- Main Organs of Nervous system :- We can divide the whole nervous system in Two Parts 1⟩ Central Nervous System ( C.N.S ) 2⟩ Peripheral Nervous System ( P.N.S ) Now we can Further divide them into :- CNS :- (i) Brain → It is the swollen END of CNS made up of billions of nervous tissues. It controls the main FEATURES of the BODY such thinking , Controlling actions...etc. (ii) Spinal Cord → It is long structure extending below the brain . It is also made up of many nervous tissues . It perform reflex action and also work as a signal transporter from sensory organs to brain . PNS :- (i) Sensory Organs → These organs are responsible for the sensing the stimulus from the surroundings.(ii) Nerves → They transfer the stimulus from sensory organs to CNSOr there are Four main Organs (i) Brain (ii) Spinal Cord(iii) Sensory Organs(iv) NervesQuestion 2 :- Spinal Cord is protected by the Spine or a structure with vertebrae . Vertebrae is bony structure separated by DISKS which act as the shock absorber. Question 3 :- Fusion of egg with a sperm is called FERTILIZATION . It further results into the formation of zygote. Now by further division of zygote the formation of Embryo takes place. |
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| 25. |
Explain the selection and hybridization steps of plants breeding technique. GSEB - Class 9 Chapter - 9.Food Resources Page 84 |
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Answer» hybridization is process of interbreeding between individuals of differnt species or genetically divergent. individuals from the same species. the seed from selected PLANTS is BULKED from the next generation . 1) selection of parents 2) evalution of parenys 3) selfing of parents 4) emasculation 5)Bagging 6) Tagging. 7) pollination 8) Harvesting. |
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| 26. |
How many essential elements are obtained by plants from soil ? (A) 12 (B) 13 (C) 14 (D) 15 GSEB - Class 9 Chapter - 9.Food Resources Page 82 |
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| 27. |
What characters should be considered for selection of a plant variety for crop improvement ? GSEB - Class 9 Chapter - 9.Food Resources Page 83 |
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Answer» The SEED from selected plants is bulked for the NEXT generation. This method is used to improve the overall population by positive or NEGATIVE mass SELECTION. Mass selection is only applied to a limited DEGREE in self-fertilizing plants and is an effective method for the improvement of land races. |
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| 28. |
State characters by which poriferan animals differ from coelenterate animal. GSEB - Class 9 Chapter - 7.Diversity in Living Organisms-Il (Classification of Animals) Page 65 |
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Answer» Both PORIFERA and Coeleterata are TWO phyla in the kingdom of Animalia. The animals in the phylum: Porifera are usually called sponges. The animals belonging to the phylum: Coelenterata is identified as Cnidaria. Sponges are sessile metazoans, which lack body symmetry. Some Cnidarians are sessile whereas OTHERS are free-swimming. Cnidarians consist of radial symmetry. The key difference between Porifera and Coelenterata is that Porifera consist of numerous pores throughout the body, working as water intake and OUTLET openings whereas Coelenterata consist of a single opening on the body working as mouth/anus. Explanation:They are mostly marine, non-motile, and found attached to rocks. || They are exclusively marine animals that either live in colonies or have a solitary life-span.They show cellular level of organization. || They show tissue level of organization.Spongilla, Euplectella, etc. are poriferans. || Hydra, sea anemone, corals, etc. are COELENTERATES. |
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| 29. |
Write a note on chemotaxonomy GSEB - Class 9 Chapter - 6.Diversity in Living Organisms-I (Classification of Plants) Page 60 |
| Answer» AREY babuExplanation: Baord KAUN SA HAI??????? | |
| 30. |
Explain following terms (1) Periodic time (2) Simple harmonic motion (3) Wave (4) Wavelength (5) Amplitude of a wave (6) Frequency of a wave (7) Wave velocity (8) Audible sound (9) Infrasonic sound (10) Ultrasonic sound (11) Echo (12) Reverberation GSEB - Class 9 Chapter - 2. Wave Motion and Sound Page 24 |
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Answer» 1. A time period (denoted by 'T' ) is the time taken for one complete cycle of vibration to pass a given point2. oscillatory motion under a retarding force proportional to the amount of displacement from an equilibrium position.3.The disturbance that travelling through a medium or vacuum from one place to other by transferring the energy is called a wave.4. the distance between successive crests of a wave, 5. The amplitude of a wave refers to the maximum amount of displacement of a particle on the medium from its rest position. 6. FREQUENCY is the number of occurrences of a repeating EVENT per unit of time. 7. Velocity of Wave or Wave Velocity The distance travelled by a wave in one second is called velocity of the wave8. sound WAVES with frequency ranging from 20 Hz to 20 KHz is KNOWN are audible sound9. Infrasound, sometimes referred to as low-frequency sound, is sound that is lower in frequency than 20 Hz or cycles per second, the "normal" limit of human hearing. 10. Ultrasound is sound waves with frequencies higher than the upper audible limit of human hearing. 11.a sound or SOUNDS caused by the reflection of sound waves from a surface back to the listener.12. prolongation of a sound; resonance.Explanation: |
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| 31. |
Human ear is sensitive to 20 Hz to 20,000 Hz for sound waves. If these waves are propagating in water calculate the maximum and minimum wavelength. Consider the wave velocity of sound in water is 1500 m/s. GSEB - Class 9 Chapter - 2. Wave Motion and Sound Page 24 |
| Answer» WAVELENGTH:FREQUENCY = VELOCITY / Wavelength20 = 1500/wavelength2/150 = wavelengthwavelength = 0.013 MMAXIMUM Wavelength:Frequency = Velocity / Wavelength20000 = 1500/wavelengthWavelength = 20000/1500Wavelength = 13.33 m | |
| 32. |
Height of water dam in hydroelectric power station is 20 m. How much water, in 1 second, should fall on turbine, so that 1 MW power is generated ? (g = 10m/s2) (A) 5000 kg (B) 10,000 kg (C) 500 kg (D) 7,500 kg GSEB - Class 9 Chapter - 1. Work, Energy and Power Page 10 |
| Answer» POWER = 1MW or 1000000 Joulesmgh = 1000000m×10×20 = 1000000m = 1000000/200m = 10000/2m = 5000 KG | |
| 33. |
Engine of a car of mass 1500 kg, keeps car moving with constant velocity 5m/s. If frictional force is 1000 N, power of engine is (A) 5 kW (B) 7.5 kW (C) 15 kW (D) 75 kW GSEB - Class 9 Chapter - 1. Work, Energy and Power Page 10 |
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Answer» a.5kw is the ANSWER for that |
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| 34. |
Which radiation was discovered by Willard ? A) a-rays B) B-rays C) y-rays D) X-rays GSEB - Class 9 Chapter - 5.Structure of Atom Page 65 |
| Answer» CEXPLANATION:WILLARD was a SCIENTIST who DISCOVERED y-rays | |
| 35. |
Write in brief about the production of cathode rays and its properties. GSEB - Class 9 Chapter - 5.Structure of Atom Page 66 |
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Answer» Cathode rays are so named because they are emitted by the negative electrode, or cathode, in a vacuum TUBE. To release electrons into the tube, they first must be detached from the atoms of the cathode.They are produced by the negative electrode, or cathode, in an evacuated tube, and travel TOWARDS the anode.They travel in straight lines and cast sharp shadows.They have energy and can do work.They are deflected by ELECTRIC and MAGNETIC fields and have a negative charge. |
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| 36. |
Mention type of following mixtures : 1) Strach mixed in sugar 2) Water mixed in milk 3) Iron powder miced in tea 4) Kerosene mixed in petrol GSEB - Class 9 Chapter - 4.Properties of Matter Page 59 |
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Answer» (1) Starch MIXED in SUGAR - Homogenous MIXTURE(2) Water mixed in milk - Homogenous Mixture(3) Iron powder mixed in tea - Heterogenous Mixture(4) Kerosene mixed in petrol - Homogenus MixtureExplanation:The TWO types of mixtures are - Homogenous mixture and Heterogenous mixture.Mixture which has uniform composition throughout their mass is called homogenous mixture.Mixture which does not have a unifom composition throughout their mass is called heterogenous mixture.Starch in sugar, water in milk and kerosene in petrol are Homogenous mixtures while Iron powder mixed in tea is a Heterogenous mixture |
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| 37. |
Name the unit of electrical resistance band resistivity |
| Answer» EXPLANATION:Unit of RESISTANCE is ohm and RESISTIVITY is ohm meter | |
| 38. |
Observations tell me the answer of this question please |
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| 39. |
Who was the wife of newton |
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Answer» r Issac Newton's FATHER's name was also Issac Newton and his WIFE was.Hannah Ayscough. But this wasn't the FACT you want. The interesting fact is sir Issac Newton died virgin he had never MARRIED to anyone. Isaac Newton was never married. |
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| 40. |
Change it into passive voice ---. 1.he is not repeating his mistake now. |
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| 41. |
Marichika Kya Hota Hai? |
| Answer» TION:इस घटना की व्याख्या प्रकाश के अपवर्तन के सिद्धांत के आधार पर की जाती है। जब पृथ्वी की सतह से सटी हुई हवा की परत गरम हो जाती है, तब वह विरल हो जाती है और ऊपर की ठंढी परतों की अपेक्षा कम अपवर्तक (REFRACTING) होती है। अत: किसी सुदूर वस्तु से आनेवाला प्रकाश (जैसे पेड़ की चोटी से आता हुआ) ज्यों-ज्यों हवा की परतों से अपवर्तित होता आता है, त्यों त्यों वह अभिलंब (NORMAL) से अधिकाधिक विचलित (DEVIATE) होता जाता है और अंत में पूर्णत: परावर्तित हो जाता है। फलत: प्रेक्षक वस्तु का काल्पनिक उल्टा प्रतिबिंब देखता है। | |
| 42. |
The chemical name of vitamin D is ascorbic acid. true or false |
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Answer» swer:A vitamin is an organic molecule (or related set of molecules) that is an essential micronutrient that an ORGANISM needs in small quantities for the proper functioning of its metabolism. Essential nutrients cannot be synthesized in the organism, either at all or not in sufficient quantities, and therefore MUST be obtained through the diet. Vitamin C can be synthesized by some species but not by others; it is not a vitamin in the first instance but is in the second. The term vitamin does not include the three other groups of essential nutrients: minerals, essential fatty acids, and essential amino acids.[2] Most vitamins are not single molecules, but groups of related molecules called vitamers. For example, vitamin E CONSISTS of four tocopherols and four tocotrienols. The thirteen vitamins required by HUMAN metabolism are: vitamin A (as all-trans-retinol, all-trans-retinyl-esters, as well as all-trans-beta-carotene and other PROVITAMIN A carotenoids), vitamin B1 (thiamine), vitamin B2 (riboflavin), vitamin B3 (niacin), vitamin B5 (pantothenic acid), vitamin B6 (pyridoxine), vitamin B7 (biotin), vitamin B9 (folic acid or folate), vitamin B12 (cobalamins), vitamin C (ascorbic acid), vitamin D (calciferols), vitamin E (tocopherols and tocotrienols), and vitamin K (quinones). |
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| 43. |
What non striated muscle fibres |
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Answer» The muscles which SHOW no cross STRIATIONS are called non-straited muscles or unstriped muscles. They LOOK smooth, HENCE are called Smooth muscles.Hope this will help uhExplanation: |
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| 45. |
When an excited hydrogen atom returned to its ground state, some visible quanta were observed along with other quanta. Which of the following transitions must have occured? a. 2-->1b. 3-->1c. 3-->2d. 4-->2Explain briefly please. |
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Answer» The answer is d because only in balmer series of HYDROGEN spectrum visible RADIATIONS are emitted.Balmer series is n1=2 and n2=2,3,4.....So whenever ELECTRON jumps from higher ORBIT to 2ND orbit,then visible is emmited. |
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| 46. |
Substances is given in the table. Categorise them as a mixture if it contains than one type of substance otherwise categorise it as a pure substance Substance Mixture (Contains more thanPure substance (Containsone type of substance)only one type of substance)SugarWheat grainsSoilKheerTomato soupTea leaves |
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Answer» bstancepure substancesubstance mixturesubstance mixturesubstance mixturepure SUBSTANCE |
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| 47. |
How many molecules are there in one mole of a compound ? A) 60.22*10⁻²³ B) 6.022*10⁻²³ C) 60.22*10²³ D) 6.022*10²³ GSEB - Class 9 Chapter - 4.Properties of Matter Page 58 |
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Answer» re 6.022 . 10 ^ 23 molecules in one mole of compound . ( by AVOGADROS NUMBER)correct OPTION D.regRds .BRAINLIEST mark❤ |
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| 48. |
Mass of the Jupiter is 2*10²⁷ kg and its radius is 7.14 * 10⁷ m. Calculate gravitaional acceleration on its surface. GSEB - Class 9 Chapter - 3.Gravitation Page 44 |
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Answer» The gravitational acceleration on the SURFACE of the Jupitor is 26.17 m/s²Explanation:The FORMULA for the gravitational acceleration G isWhere,G is the gravitaional constant = 6.67 X 10⁻¹¹ Nm²/kg⁻²M is the mass of the planetR is the radius of the planetIn this QUESTION, given isM = 2 × 10²⁷ kgR = 7.14 × 10⁷ mTherefore, m/s² |
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| 49. |
The earth revolve around the sun under the infulence of gravitational force. If the mass of earth is 6*10²⁴ kg, the mass of the sun is 2*10³⁰ kg, and the distance between their centers is 1.5*10¹¹m, then calculate the gravitational force between them. what will be the acceleration of the earth under the effect of gravitaional force ? GSEB - Class 9 Chapter - 3.Gravitation Page 44 |
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Answer» 3.557 × 10²² (APPROX)EXPLANATION:given in PICTURE hope it WOULD HELPFUL for you |
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| 50. |
Retardation produced, due to brakes, in moving train is 0.5 m/s². Train stops after 40s after application of brakes. If train is to stop in a certain place on platform, what would be the distance from plathform, of a place where brakes are appplied ? GSEB - Class 9 Chapter - 1.Motion Page 16 |
| Answer» RETARDATION = change in velocity /TIME taken0.5 = change in velocity /40change in velocity = 20m/sSince train STOPS final velocity (v) = 0Let u be initial velocity 20 = u-vu = 20s =UT +1/2 at^2(20)(40)+1/2(-0.5)(40)(40)800-400s = 400mHope this HELPS you | |