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. |
Gather information about solar light , solar water haeting system and solar cooker. |
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Answer» From SOLAR LIGHT we get electeicity |
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| 2. |
Write a paragraph on green corridor |
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Answer» Green corridor is a thin strip of LAND which provides sufficient HABITAT for supporting wildlife...it is usually within an URBAN environment and THUS allowing movement of wildlife along it. Common green corridors include railway embankments , river BANKS and roadside grass verges. Hope u like the answer...✌ |
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| 3. |
The secretion of the sting of silk worm forms the Silk fibre.( write whether the statement are true or false with proper justification of your answer) |
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Answer» The above sentence is incorrect. Silk is not produced from the SECRETION of the sting of the silkworm. On the contrary, they EJECT silk threads various tiny pores in their jaws, and they use it to spin their cocoons. T his process LASTS for 3 days approximately post which the silk FARMER kills the silkworm inside and USES the cocoon to extract silk threads. |
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| 4. |
A cork floats while a nail sinks .why? |
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| 5. |
The image of object formed by a mirror is real, inverted................................................. |
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| 6. |
Write the mechanism by which fishes breath in "water" |
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Answer» NORMALLY fish BREATH by taking water into their Gills, like lungs, contain many blood vessels with very thing walls i.e. capillaries. As the water passes over the THIN walls of the gills dissolved oxygen moves into the blood stream and carbon dioxide is released out into the water. Different fishes use different methods. For example most sharks use a method of breathing called ram ventilation where instead of taking water into their mouths and breathing it out through their gills water passes through the gills as the shark SWIMS through the water. This means the constantly have to keep MOVING |
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| 7. |
what is the effect on the i)loudness of a sound when the amplitude of the vibrating body gets doubled? ii)pitch of a sound when the frequency of a vibrating body gets doubled |
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Answer» 1)When the amplitude of vibration is large ,the sound produced is loud. b)If the amplitude of vibration is small ,the sound produced is feeble. The loudness of sound is DIRECTLY proportional to the SQUARE of amplitude of vibration. If the amplitude of vibration is DOUBLED ,then the loudness will become 4 TIMES. |
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| 8. |
What will happen if a plant doesn't have any leaves |
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Answer» The leaf is the PART where the FOOD is MADE out of CO2,sunlight and water. Without the leaf the plant cannot prepare its food therefore not ALLOWING it to grow and due to starvation it dies. |
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| 9. |
A compound A (C₂H₄O₂) reacts with Na metal to form a compound ‘B’ and evolves a gas which burns with a pop sound. Compound ‘A’ on treatment with an alcohol ‘C’ in presence of an acid forms a Sweet smelling compound ‘D’ (C₄H₈O₂). On addition of NaOH to ‘D’ gives back B and C. Identify A, B, C and D write the reactions involved. |
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Answer» R — Sodium SALT of ethanoic acid (sodium ACETATE) and gas evolved is hydrogen. A — Methanol. S — Ester (Methyl acetete). |
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| 10. |
Heat is liberated whena.) Water converts into vapourb.) Ice meltsC.) Ice meltsd.) Water vapour condenses |
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| 11. |
We can see light through a straight tube but not through a bent tube why |
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Answer» Hey!! |
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| 12. |
Short note on modern periodic table |
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Answer» This periodic table is also KNOWN as Long or Extended Form of the periodic table. In the MENDELEEV's periodic table the subgroups A and B have been kept together giving rise to short periods. ... Features of MODERN periodic table: This table has 18 vertical columns CALLED groups and 7 horizontal rows known as periods. |
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| 13. |
The secretion of the sting of silk worm forms the silk fibres.(true or false with proper justification for your answer)please answer......... |
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| 14. |
Name a device which converts mechanical energy into electrical energy. Explain the underlying principle and working of this device with the help of a labelled diagram. |
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Answer» GENERATOR is a device which CONVERTS mechanical energy into electrical energy. It WORKS by the principle of Electromagnetic induction. Electromagnetic induction is defined as the production of electric current DUE to the change in magnetic field. The number or turns or coils present inside the generator is directly proportional to the amount of voltage PRODUCED. Electromagnetic induction was first discovered by Micheal Faraday. |
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| 15. |
Why is it better to stay fully clothed in a hot desert, even if you fee very hot? |
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Answer» THATS because the clothes will shield you from the HEAT produced by DIRECT sun RAYS hitting your body but be sure to wear light or white COLOURED clothes otherwise you are going to roast |
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| 16. |
A ball is thrown up with a speed of 15 M per second how high will it go before it begin to falls. (g is equal to 9.8) |
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Answer» U = 15 m/s v = 0 m/s a = - 9.8 m/s² s = ? v² = u² + 2as = 225 = 9.8*2*s = s = 225 * 10 / 196 = 11.47 m |
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| 17. |
In what occupations do you think is estimation an important part of the job |
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| 18. |
what is the colour of container is which hazardous wastes such as needles and I.U. sets are stored ?? |
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Answer» Sharp, biological/clinical hazardous WASTES are generally stored in yellow BINS and when they are cytotoxic, in violet bins. These bins should be placed in a highly ACCESSIBLE area near the WORKPLACE. Furthermore, these needles should be segregated based on tyoe of contamination wherein INDIVIDUAL containers are properly labelled. Contaminations could include chemical contaminations and cytotoxic contaminations. The bins should not be overfilled. |
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| 19. |
What is meant by power of a lens? You have three lenses L₁, L₂ and L₃ of powers +10D, +5D and -10D respectively.State the nature and focal length of each lens. Explain which of the three lenses will form a virtual and magnified image of an object placed at 15 cm from the lens. Draw the ray diagram in support of your answer. |
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Answer» The ability of a lend to converge or diverge the light rays is called power of a lens. for lens L₁ P₁=+10D Since the power is positive the nature of the lens is converging f₁=1/P₁ f₁=1/10 f₁=0.1m f₁= +10cm For lens L₂ P₂=+5D since the power is positive the nature of the lens is converging f₂=1/P₂ f₂=1/+5 f₂=0.2m f₂ =20cm For lens L₃ P₃= -10D Since the power is negative the nature of the lens is diverging in nature f₃= 1/P₃ f₃=1/-10 -0.1m f₃= -10cm Lens L₂ will PRODUCE virtual erect and enlarged or magnified image because the distance of the object is less than FOCAL length .or the object LIES between the optical center and Principal focus. L₁ will not produce a virtual erect and enlarged image because the object lies between F₁ and 2F₁ L₃ being diverging in nature i.e a CONCAVE lens it always PRODUCES a virtual erect and diminished image of the object. |
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| 20. |
From an experiment to study the properties of acetic acid. Answer the following questions:a) Name the substances which on addition to acetic acid produce carbon dioxide gas. Give relevant chemical equation for the above?b) How is CO₂ gas tested in the laboratory? |
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Answer» The reaction between baking soda and vinegar NaHCO3(s) + CH3COOH(l) → CO2(g) + H2O(l) + Na+(aq) + CH3COO-(aq) To TEST the CO2 gas in a lab, BUBBLE it through lime water. If the lime water turns milky, it proves the test of carbon dioxide. Lime water turns milky as reacting with Carbon dioxide it FORMS CALCIUM Carbonate. |
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| 21. |
Take weights of five of yours friends find out whats their weights will be on the moon and tge mars |
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Answer» therefore friends weigh 5x N w = 5/6 x N |
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| 22. |
Name the baloon like structure present in lungs. list its two functions |
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Answer» ALVEOLI is BALLOON like structure present in lungs It's function is to exchange O2 and CO2 from the BLOODSTREAM. |
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| 23. |
What is minerals and how they are useful |
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Answer» We OFTEN hear that certain foods CONTAIN a certain amount of VITAMINS and minerals. Minerals are important basic building blocks for PROPER nutrition and health. Without them, other nutrients are unable to FUNCTION properly |
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| 24. |
draw ray diagram for the cases of image obtained in concave mirror as described in the table on page 122. |
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Answer» Answer: Draw RAY diagrams for the cases of images OBTAINED in concave mirrors as DESCRIBED in the table on PAGE 122. Explanation: |
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| 25. |
Which substance is absorbed by organism pseudomonas? |
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Answer» HELLO MATE, The lipid which he OBTAINED from DRIED pseudomonas aeruginosawas fractionated the separate FRACTIONS tested. mark as brainliest ..... |
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| 26. |
A battery powers a circuit for a small noisy fan. The fan’s motor gets warm as it turns. What energy transformations are taking place? |
| Answer» ELECTRICAL ENERGY to HEAT energy | |
| 28. |
what precautions should be taken of the household solid waste management what will you suggest to your mother regarding this |
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Answer» To recycle the SOLID waste houseold MANAGMENT THINGS and REUSE it it will be |
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| 29. |
what precautions should be taken of the household solid waste management ?what will you suggest to your mother regarding this? |
| Answer» PROBABLY USING a dustbin . I would suggest my mother to install a dustbin but with a COVER to avoid communicating of diseases. | |
| 31. |
Advantages of Noise pollutionAdvantages of Noise pollution |
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Answer» ISKE koi advantages NAHI Hai find .... iske SIRF disadvantages Hai..... because it is not good for humans... it is very harmful and dangerous for living beings PERSONS............... I will hope you understand frnd |
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| 33. |
Name the main varieties of coal |
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Answer» Answer: there are four MAIN COAL types:lignites ,sub -bituminous , bituminous,anthracite . |
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| 36. |
state the two vital function of the human kidney name the procedure used in the working of artificial kidney class 10th |
| Answer» HOPE it will HELP you | |
| 37. |
What type of plant is this and some points about it ???? |
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Answer» Mimosa or it is also KNOWN as the TOUCH Me Not PLANT. it is commonly grown in greenhouses it RESPONDS on TOUCHING |
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| 38. |
Write the consequences if water is not available to plants?? |
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Answer» Consequences we ll face when water is not available to PLANTS:
Hope it HELPS.... |
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| 39. |
Explain Water is considered as a precious liquid |
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Answer» Water is a very precious liquid. All living beings NEED water for survival. However, 97 per cent of the total water on earth is SALT water and rest 3 per cent is somewhere in form of glaciers and UNDERGROUND and for our drinking. Water is considered as one of the basic and important compound in form of science. Therefore water is considered as a precious liquid |
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| 40. |
Is the development and growth of a tadpole dependent on any mineral |
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Answer» Tadpoles are the LARVAL stages of frogs and toads. AMPHIBIANS differ from most other vertebrates (HIGHER organisms with a backbone), in that their eggs develop into a larval stage, KNOWN as a tadpole. The word comes from the old English words for a TOAD and a head (poll). Pollywog, another name for a tadpole, also comes from the root 'poll' for head and the old word for wriggle, reflecting the fact that their bodies appear to be completely made up of a head and a tail. Whereas frogs and toads are terrestrial, tadpoles are completely aquatic. They have gills instead of eyes. Their food, and therefore their mouths and digestive systems, is often very different from that of their parents. Tadpoles also have tails, which the adults lack. Frogs are in the order anura, meaning no tail, as opposed to tailed amphibians, like salamanders. |
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| 41. |
What are artificial magnet ? why are they called so? explain. |
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Answer» Answer: A MAGNET which OCCURS naturally and has magneticproperties is called naturalmagnet. Artificial magnets are PREPARED by IMPARTING the properties of natural magnet to THEMAGNETIC substances by rubbing with magnet or by the process of induction. |
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| 42. |
Name of common nutrients that is observed in the small intestine and observed by the kidney tubules |
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Answer» the nutrients absorbed both in the small intestine is PROTEINS, in the small INTESTINES it is absorbed for its normal nutritional function but in the kidnry TUBULES it is absorbed during the process of PURIFICATION of urine back to the bloodstream at tje kidney tubules KNOWN as loop of henle. vic |
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| 43. |
Explain the importance and need of blood donation answer the following question in your own words |
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Answer» Donating blood is an active way of helping others and the WHOLE of society. |
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| 44. |
Explain the working of the compound microscope by focal length of convex lens |
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Answer» The simplest compound microscope is CONSTRUCTED from two convex lenses . The objective LENS is a convex lens of short focal length (i.e., HIGH power) with typical magnification from 5× to 100×. The eyepiece, also referred to as the ocular, is a convex lens of LONGER focal length. |
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| 45. |
How many of you know about the subject Digital logic design? |
| Answer» YES I KNOW but why were U ASKING | |
| 46. |
when resistors are connected in parallel the current divides in _________ . a) direct ratio of resistances b) inverae ratio of resistances c) inverse ratio of potential difference d) none of these |
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Answer» DIRECT RATIO of RESISTANCES (a) |
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| 47. |
What is seedling??? |
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Answer» Hey, here is your answer |
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| 48. |
Food must have limited amount of salt give scientific reason |
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Answer» I think so , It is so because it MAKES us stress and ALSO adictive to FAST FOOD |
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| 49. |
Arrange the metals iron, magnesium, zinc and copper in the increasing order of their reactivity. What will be the two observations made by the student when iron filings are added to copper sulphate solution? |
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Answer» According to the order of reactivity of METALS MAGNESIUM is the most reactive followed by zinic then iron then lastly copper. The STUDENT will observe that there will be no reaction when copper is added on sulphate solution SINCE copper does not react with sulphur according to the researches. it is ALSO believed that pure copper can at times have some impurities and can have very little reaction. CMM |
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