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. |
Co-uncredited co. Of the fort?Nayarist No. Kiran |
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Answer» Collect And Combine Like Terms `2.487e-311 T1621` |
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| 2. |
Name the authors of the book "Far from the Madding Crowd". |
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Answer» Thomas Hardy wrote the book "Far from the Madding Crowd". |
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| 3. |
Name the authors of the book "Emma". |
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Answer» Jane Austen wrote the book "Emma". |
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| 4. |
Why is it said that geothermal power plants are not possible in Kerala? Discuss and record. |
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Answer» There are some minor environmental issues associated with geothermal power. Geothermal power plants can in extreme cases cause earthquakes. There are heavy upfront costs associated with both geothermal power plants and geothermal heating/cooling systems. Very location specific (most resources are simply not cost-competitive). Some countries have been blessed with great resources – Iceland and Philippines meet nearly one-third of their electricity demand with geothermal energy. If geothermal energy is transported long distances by the means of hot water (not electricity), significant energy losses has to be taken into account. Geothermal power is only sustainable (renewable) if the reservoirs are properly managed. |
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| 5. |
The graph regarding the calorific value of certain fuels is given below. Analyze the graph and answer the following Questions.a. Which fuel has the highest calorific value? Which has the lowest? b. How many kilogram of dried cow- dung is to be burnt to obtain the same amount of heat produced when 1 kg of LPG burns? c. From the graph find out the most suitable fuel for household purpose. Justify your |
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Answer» a. Highest – Hydrogen Lowest – Cowdung (Dried) b. Energy released when 1kg LPG bums = 54000 kJ. Dried cow-dung is to be burnt to obtain the same amount of heat \(\cfrac{54000}{6000}\) = 9 kg c. Biogas, because it is a renewable energy. Comparatively high calorific value. |
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| 6. |
Name the authors of the book " The Waste Land". |
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Answer» T.S. Eliot wrote the book " The Waste Land". |
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| 7. |
Name the authors of the prose pieces "Bharat is My Home" |
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Answer» Dr. Zakir Hussain wrote the prose pieces "Bharat is My Home". |
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| 8. |
Complete the following sentences on the basis of your textual reading : (a) The worst effect of colonisation was seen in towns, in the form of ................(b) Choobookov was a ................. . |
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Answer» (a) The worst effect of colonisation was seen in towns, in the form of Unemployment. (b) Choobookov was a Land owner. |
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| 9. |
The atomic number of zinc is –A. 24 B. 28 C. 29 D. 30 |
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Answer» Option : D. 30 |
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| 10. |
Make a precis of the following passage and suggest a suitable title :Teaching is the noblest of professions. A teacher has a scared duty to perform. It is he on whom rests the responsibility of moulding the character of young children. Apart from developing their intellect, he can inculcate in them qualities of good citizenship, remaining neat and clean, talking decently and sitting properly. These virtues are not easy to be imbibed. Only he who himself leads a life of simplicity, purity and rigid discipline can successfully cultivate these habits in his pupils. Besides a teacher always remain young. He may grow old in age, but not is spite. Perpetual contact with budding youth keeps him happy and cheerful. There are moments when domestic worries weigh heavily on his mind, but the delightful company of innocent children makes him overcome his transient moods of despair. |
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Answer» Title : Ideal Teacher Teaching is the noblest profession. A teacher himself leading a simple, pure and disciplined life can mould the character of the young children and make them neat and good mannered citizens. Besides he remains very young forgetting his own domestic worries in the constant company of the young. |
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| 11. |
Name the poets who wrote the following lines :The burning ghat erupted phosphorescence:and wandering ghost light frightened passers-byas moonlight scuttled among the bones. |
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Answer» K.N. Daruwala wrote the above line. |
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| 12. |
Name the authors of the book " Pamela". |
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Answer» Richardson wrote the book " Pamela". |
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| 13. |
What is the chemical formula of washing soda ?A. Na2CO3.10H2O B. Na2CO3.7H2O C. Na2CO3.5H2O D. Na2CO3.H2O |
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Answer» Option : A. Na2CO3.10H2O |
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| 14. |
Read carefully the passage given below and answer the questions that follow:All acquisitions are fruitful in their proper form. So is the case with learning and knowledge. Learning is a long and open-minded pursuit. Only those who have humility have real learning and knowledge. This humility comes from their enlightened realization and learning and knowledge are too vast for any individual to grasp them all. The higher one goes on the mountain of knowledge more and more peaks come to one's sight. Finally he has to realise that he is too limited to have access to them all. But a person having only a little learning thinks that he has known everything. He has not gone to the height of knowledge so he cannot know the peaks. He is like an empty vessel that sounds much but has nothing inside it. Thus a little learning is a very dangerous thing. Questions : (a) What is learning? (b) Who is like an empty vessel? (c) Who has real learning and knowledge? (d) Who knows that he has known everything? |
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Answer» (a) Learning is a long and open minded pursuit. (b) The person who has not gone to the heights of knowledge is like an empty vessel. (c) Only those who have humility have real learning and knowledge. (d) The person who has a little knowledge thinks that he has known everything. |
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| 15. |
Which one of the following is the strongest base?A. Mg(OH)2 B. NH4OH C. NaOH D. Cu(OH)2 |
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Answer» Option : C. NaOH |
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| 16. |
Back line refer to a. All the Audio equipment b. The Band’s performing equipments / Instruments c. The lighting equipments d. Back drop and rigging |
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Answer» b. The Band’s performing equipments / Instruments Back line refer to The Band’s performing equipments / Instruments. |
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| 17. |
Haematite is an ore of which of the following metals ?A. Zn B. FeC. Cu D. Au |
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Answer» Option : B. Fe |
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| 18. |
The reaction, 2Zn + O2→2ZnO is which type of reaction.A. Oxidation B. Displacement C. Neutralisation D. Decomposition |
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Answer» Option : A. Oxidation |
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| 19. |
The sulphide ore is concentrated by which of the following process?A. Liquation B. Hand picking C. Calcination D. Froth-floatation process |
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Answer» Option : D. Froth-floatation process |
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| 20. |
Volume is measured using a. Sound position level b. Sound pressure level c. Speak Pressure level d. Sound pressure Limit |
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Answer» b. Sound pressure level Volume is measured using Sound pressure level. |
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| 21. |
What is the correct sequence of connecting this equipment? a. EQ Mixer. Amplifier Speakers b. Mixer EQ Amplifier Speakers c. Amplifier. Speakers EQ Mixer d. Speakers Amplifier EQ Mixer |
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Answer» b. Mixer EQ Amplifier Speakers Mixer EQ Amplifier Speakers is the correct sequence of connecting this equipment. |
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| 22. |
Polythene is a polymer of-(A) Ethane(B) Ethene(C) Propene(D) Ethyne |
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Answer» Answer is (B) Ethene |
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| 23. |
The symbol of Helium is-(A) He(B) Hi(C) Hm(D) All |
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Answer» Answer is (A) He |
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| 24. |
i) When a liquid is getting converted into solid, the latent heat is ………………………………… ii) Identify the type of following reaction :C12H22O11 → 12C + 11H2Oiii) In Dobereiner’s triad containing Li, Na, K, if atomic masses of Lithium & Potassium are 6.9 and 39.1, then what will be the atomic mass of Sodium? iv) Considering first correlation, complete the second.Hubble telescope : At 569 km above the earth’s surface Orbit of Hubble telescope : v ) Observe the figure and write accurate conclusion regarding refraction of light. |
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Answer» i. Released. ii. Decomposition Reaction iii. According to Dobereiner’s triad rule : Atomic Mass of Sodium = 6.9 +39.1 / 1 =23 iv. Hubble telescope : At 569 km above the earth’s surface. Orbit of Hubble telescope : Low Earth Orbit v. When a light ray passes from a rarer medium to a denser medium, it bends towards the normal. |
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| 25. |
Write the correct option by observing the figures.a) Magnetic field in A is stronger. b) Magnetic field in B is stronger. c) Magnetic fields in A and B are same. d) Magnetic fields in A and B are weaker. |
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Answer» (b) Magnetic field in B is stronger. |
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| 26. |
A student obtained clear image of window grills on the screen. But the teacher told him to get the image of a tree far away, instead of window. To get a clear image, the lens must be ............................ a) moved towards the screen. b) moved away from the screen. c) moved behind the screen. d) moved far away from the screen. |
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Answer» (a) moved towards the screen. |
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| 27. |
The functional group of alcohol is-(A) -COOH(B) -CHO(C) -C=O(D) -OH |
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Answer» Answer is (D) -OH |
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| 28. |
When radiation of wavelength `lambda ` is incident on a metallic surface , the stopping potential is `4.8 "volts"` . If the same surface is illuminated with radiation of double the wavelength , then the stopping potential becomes `1.6 "volts"`. Then the threshold wavelength for the surface isA. 2`lambda`B. 4`lambda`C. 6`lambda`D. 8`lambda` |
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Answer» Correct Answer - B `(hc)/e (1/lambda-1/lambda_0) = V_0` `rArr "hc"/e (1/lambda - 1/lambda_0) =4.8` …(i) and `(hc)/e (1/(2lambda)-1/lambda_0) =1.6` …(ii) From equation (i) by (ii) , `((1/lambda-1/lambda_0))/((1/(2lambda)-1/(lambda_0)))=4.8/1.6 rArr lambda_0 = 4lambda` |
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| 29. |
What would be the correct order if Zn, Fe, Al and Cu are arranged in increasing order of reactivity? a) Cu, Fe, Zn, Al b) Al, Cu, Fe, Zn c) Zn, Al, Cu, Fe d) Fe, Zn, Al, Cu. |
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Answer» a) Cu, Fe, Zn, Al |
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| 30. |
H2SO4 is a-(A) Dibasic acid(B) Monobasic acid(C) Mono acid base(D) Di acid base |
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Answer» Answer is (A) Dibasic acid Dibasic acid as it can liberate 2 H+ ionsIt can also behave as monobasic acid. But generally it is dibasic acid |
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| 31. |
If the equation of alternating emf is V = 200 sin 300t, then for a circuit containing R = 100 `Omega` and L = 800 mH, the peak value of current will be in ampere :A. 0.77B. `2.0`C. 1.5D. 1.83 |
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Answer» Correct Answer - A `X_L=(300xx800)/1000`=240 R=100 `i=V/Z =200/sqrt(100^2 + 240^2)` |
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| 32. |
The following structural formula belongs to which carbon compound?a) Camphor b) Benzene c) Starch d) Glucose. |
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Answer» (b) Benzene is belongs to carbon compound. |
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| 33. |
Differentiate the Calcination and Roasting |
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Answer» Difference between roasting and calcination- Roasting is the process of heating up an ore in excess of air whereas calcination is the process of heating up of an ore in absence or limited supply of air. In both heating is done below the melting point of the ore. |
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| 34. |
i) Which principle is explained in this figure ? ii) Which rule is used to find out the direction of force in this principle? iii) In which machine this principle is used? Draw a diagram showing working of that machine. |
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Answer» i. A force is exerted on the current carrying conductor in the presence of a magnetic field. ii. The Fleming’s Left and Rule is used. iii. Electric Motor Scientifically and technically correct figure. |
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| 35. |
Write the I.U.P.A.C. names of |
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Answer» Butane-1, 4-dioic acid |
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| 36. |
Differentiate the Flux and Slag |
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Answer» Difference between flux and slag- Flux is a substance (acidic or basic) which combines with gangue (basic or acidic respectively) still left in the roasted or calcinated ore to form fusible slag. Flux + Gangue → Slag Gangue combines with flux to form slag Gangue + Flux → Slog |
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| 37. |
Observe the straight chain hydrocarbons given below and answer the following questions :i) Which of the straight chain compounds from A and B is saturated and unsaturated straight chains? ii) Name these straight chains. iii) Write their chemical formula and number of – CH2 - units. |
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Answer» i. A – Saturated hydrocarbons B – Unsaturated hydrocarbons ii. A – Propane B – Propene iii. A - C3H8 : Number of -CH2- is 3 B - C3H6 : Number of -CH2- is 1 |
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| 38. |
Why do transition elements form coloured compounds? Explain. |
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Answer» The d orbitals in transition metal compound are not of equal energy. In transition elements d-orbital are partly filled and electron may be promoted from one d level to another d level by absorbing visible light. Consequently the compound has the colour complement to the absorbed light. |
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| 39. |
Write down what you understood from the following chemical reaction.AgNO3 (ag) + NaCl (aq) → AgCl ↓ NaNO3 (aq) |
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Answer» i. AgNo3 and NaCl are reactants and AgCl व NaNO3 are products. ii. Reactants and the product NaNO3 are in aqueous form. iii. Product AgCl is formed in the form of precipitate. |
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| 40. |
Specify oxidation numbers of the metal [PtCl4]-2 |
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Answer» Suppose that Oxidation of Pt in [PtCl4]-2 = x x + 4(-1) = 2 or, x = 2 Oxidation no. of Pt = 2 |
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| 41. |
Specify oxidation numbers of the metal K4[Fe(CN)6] |
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Answer» Suppose that Oxidation no. of Fe = x K4[Fe(CN)6] = x 1 + 4 + x + (-1) × 6 = 0 4 + x - 6 = 0 ∴ x = +2 |
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| 42. |
What are space expeditions? Explain their need and importance in your words. |
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Answer» Space expeditions : Study missions planned for establishing artificial satellites in the Earth's orbit, using it for research or for the benefit of life, or sending spacecraft to the various components of the solar system or outside. Need and importance: Opinion in reference to defense, communication, weather, observation, direction etc. |
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| 43. |
What will be the weight of a person on earth, who weighs 9N on the moon? a) 3 N b) 15 N c) 45 N d) 54 N |
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Answer» 54 N weight of a person on earth. |
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| 44. |
The oxidation number of Fe in K4 [Fe(CN)6] is-(A) +2(B) +3(C) -2(D) -3 |
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Answer» Answer is (A) +2 |
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| 45. |
A vertical ring of radius `r` and resistance on `R` falls vertically. It is in contact with two vertical rails which are joined at the top. The rails are without friction and resistance. There is a horizontal uniform, magnetic field of magnitude `B` perpendicular to the plane of the ring and the rails. When the speed of the ring is `v` , the current in the section `PQ` is A. zero.B. `2Brv//R`C. `4Brv//R`D. `8Brv//R` |
| Answer» `i=(Bv(2r))/(R_(eq))`, where `R_(eq)=((R//2)(R//2))/(R//2+R//2)=R//4` | |
| 46. |
Statement 1 : Electric current ( flow of electrons ) creates heat in the resistor. Statement 2 : Heat in the resistor is created according to the rule of energy conservation. Explain Statement 1 with the help of Statement 2 |
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Answer» i. When electrons flows through the resistor (during flowing electric current) electron possesses kinetic energy. ii. During the flow of electron there is decrease in kinetic energy of electrons due to collision on atoms, ions and molecules. iii. According to the law of conservation of energy decrease in kinetic energy gets converted into heat. |
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| 47. |
Swarali has got the following observations while doing an experiment. Answer her questions with the help of observations.Swarali observed that the light bent away from the normal, while travelling from dense medium to rarer medium. When Swarali increased the values of angle of incidence (i), the values of angle of refraction (r) went on increasing. But at a certain angle of incidence, the light rays returned into the dense medium.So, Swarali has some questions. Answer them – a) Name this certain value of ‘i ’. What is the value of ‘r’ at that time ? b) Name this process of returning of light in dense medium. Explain the process. |
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Answer» a) Critical angle r = 90० b) Internal reflection As light is going from denser to rarer medium, if the value of angle of incidence increases then the value of angle of reflection also increases. But after specific angle of incidence (critical angle) the light gets reflected back into the dense medium. |
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| 48. |
Atomic number of metal ‚A‛ is 11, while atomic number of metal ‚B‛ is 20. Which of them will be more reactive? Write the chemical reaction of dilute HCl with metal ‚A‛. |
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Answer» Metal ‘A’ is more reactive than metal ‘B’. Atomic number of metal ‘A’ is 11, hence it is Na. 2Na + 2HCI → 2NaCI(aq) + H2 (g) |
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| 49. |
What is the correct reason for blinking / flickering of stars? Explain it. a) The blasts in the stars. b) Absorption of star light by the atmosphere. c) Motion of the stars. d) Changing refractive index of gases in the atmosphere. |
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Answer» d) Changing refractive index of gases in the atmosphere. Atmosphere is unstable due to changing density and temperature of air, hence refractive index of air keeps changing continuously. The position and brightness of the star keep changing continuously and the star appears to be twinkling. |
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| 50. |
After switch `S_(2)` is closed and `S_(1)` is opened, the maximum value of current through the inductor is:A. `(sqrt(C/L))E`B. `(sqrt(C/(2L)))E`C. `(sqrt((3C)/(2L)))E`D. `(sqrt((5C)/(4L)))E` |
| Answer» Correct Answer - C | |