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Page 1 MAHARASHTRA NATIONAL TALENT SEARCH EXAMINATION, 2018-19 STAGE – 01 SCHOLASTIC APTITUDE TEST (SAT) SOLUTIONS PHYSICS 1. (1) As e 1 g R ? P E g g ? ? 2. (3) 3. (4) First three can be explained by refraction. 4. (2) 3 1 V 3.14km / s 3.14 10 ms ? ? ? ? N S Page 2 MAHARASHTRA NATIONAL TALENT SEARCH EXAMINATION, 2018-19 STAGE – 01 SCHOLASTIC APTITUDE TEST (SAT) SOLUTIONS PHYSICS 1. (1) As e 1 g R ? P E g g ? ? 2. (3) 3. (4) First three can be explained by refraction. 4. (2) 3 1 V 3.14km / s 3.14 10 ms ? ? ? ? N S ? ? d 2 r 2 R 4 ? ? ? ? ? ? ? d 2 6400 3600 2 10000km ? ? ? ? ? ? 3 3 2 r 2 10000 10 T T V 3.14 10 ? ? ? ? ? ? ? ? T 20000s ? 5. (3) Let us suppose that time require to cover 1 ? angle is t 160 T 160 t ? ? ? ? and 10 T 10 t ? ? ? As we know 2 3 T R ? 2 2 10 10 160 0 T R T R ? ? ? ? ? ? ? ? ? ? ? ? ? ? 2 3 10 3 18 R 10 t 160 t 140 10 ? ? ? ? ? ? ? ? ? ? 18 3 10 10 10 140 140 140 10 R 160 160 ? ? ? ? ? ? ? ? 8 10 R 5.57 10 kms ? ? ? 7 10 R 56 10 kms ? ? ? 6. (4) A-ii, B-iv, C-i, D-iii 7. (1) H mC T ? ? H 5 4186 80 ? ? ? ? ? C 4186J / kg ? ? H 400 4186 ? ? H 1674400J ? H 1674.40kJ ? 8. (2) a g sin1 sinr ? ? ? sin 45 1 sinr 1.5 ? ? 1 1.5 sinr 2 ? ? 3 sinr 2 2 ? *9. No option is matching 19 19 40 1.6 10 n 1.6 10 8 1 ? ? ? ? ? ? ? ? q i t ? ? ? ? ? ? ? 19 6.4 n 1.6 10 8 ? ? ? ? ? 19 n 10 ? 10. (3) 45 o 45 o 45 o r ? g ? a Page 3 MAHARASHTRA NATIONAL TALENT SEARCH EXAMINATION, 2018-19 STAGE – 01 SCHOLASTIC APTITUDE TEST (SAT) SOLUTIONS PHYSICS 1. (1) As e 1 g R ? P E g g ? ? 2. (3) 3. (4) First three can be explained by refraction. 4. (2) 3 1 V 3.14km / s 3.14 10 ms ? ? ? ? N S ? ? d 2 r 2 R 4 ? ? ? ? ? ? ? d 2 6400 3600 2 10000km ? ? ? ? ? ? 3 3 2 r 2 10000 10 T T V 3.14 10 ? ? ? ? ? ? ? ? T 20000s ? 5. (3) Let us suppose that time require to cover 1 ? angle is t 160 T 160 t ? ? ? ? and 10 T 10 t ? ? ? As we know 2 3 T R ? 2 2 10 10 160 0 T R T R ? ? ? ? ? ? ? ? ? ? ? ? ? ? 2 3 10 3 18 R 10 t 160 t 140 10 ? ? ? ? ? ? ? ? ? ? 18 3 10 10 10 140 140 140 10 R 160 160 ? ? ? ? ? ? ? ? 8 10 R 5.57 10 kms ? ? ? 7 10 R 56 10 kms ? ? ? 6. (4) A-ii, B-iv, C-i, D-iii 7. (1) H mC T ? ? H 5 4186 80 ? ? ? ? ? C 4186J / kg ? ? H 400 4186 ? ? H 1674400J ? H 1674.40kJ ? 8. (2) a g sin1 sinr ? ? ? sin 45 1 sinr 1.5 ? ? 1 1.5 sinr 2 ? ? 3 sinr 2 2 ? *9. No option is matching 19 19 40 1.6 10 n 1.6 10 8 1 ? ? ? ? ? ? ? ? q i t ? ? ? ? ? ? ? 19 6.4 n 1.6 10 8 ? ? ? ? ? 19 n 10 ? 10. (3) 45 o 45 o 45 o r ? g ? a Electromotor, voltmeter and ammeter convents electrical energy to mechanical energy as in ammeter and voltmeter needle will deflect. 11. (1) Case I: v 1 m u 2 ? ? 2v 4 ? ? 1 1 1 f v u ? ? u 3f ? ? ? and 3t v 2 ? Case II: ? ? V ' 2 u 30 ? ? ? ? ? V ' 2 u 30 ? ? ? ? ? 1 1 1 f v ' u 30 ? ? ? ? ? ? ? 1 1 1 f 2 u 30 u 30 ? ? ? ? ? ? ? 1 3 f 2 u 30 ? ? ? 3f 6f 60 ? ? ? ? ? ? u 3f ? ? ? f 20cm ? 12. (3) 360 n ? ? (formula), Here ? ? n 1 6 n 6 ? ? ? ? 360 6 x 60 x ? ? ? ? ? Now, 360 360 n n x 30 30 ? ? ? ? n 12 ? (even) ? number of images ? ? n 1 11 ? ? ? 13. (2) Since water has maximum density at 4 C ? , therefore its volume must be minimum at 4 C ? CHEMISTRY 14. (1) 1950 15. (1) 2 3 Fe O 16. (3) Catalyst 17. (3) D Block 18. (2) 2 3 2 Fe O H O ? 19. (4) Bauxite formula - 2 3 2 Al O 2H O ? % of 2 3 Al O in Bauxite 102 100 73.91 138 ? ? ? Page 4 MAHARASHTRA NATIONAL TALENT SEARCH EXAMINATION, 2018-19 STAGE – 01 SCHOLASTIC APTITUDE TEST (SAT) SOLUTIONS PHYSICS 1. (1) As e 1 g R ? P E g g ? ? 2. (3) 3. (4) First three can be explained by refraction. 4. (2) 3 1 V 3.14km / s 3.14 10 ms ? ? ? ? N S ? ? d 2 r 2 R 4 ? ? ? ? ? ? ? d 2 6400 3600 2 10000km ? ? ? ? ? ? 3 3 2 r 2 10000 10 T T V 3.14 10 ? ? ? ? ? ? ? ? T 20000s ? 5. (3) Let us suppose that time require to cover 1 ? angle is t 160 T 160 t ? ? ? ? and 10 T 10 t ? ? ? As we know 2 3 T R ? 2 2 10 10 160 0 T R T R ? ? ? ? ? ? ? ? ? ? ? ? ? ? 2 3 10 3 18 R 10 t 160 t 140 10 ? ? ? ? ? ? ? ? ? ? 18 3 10 10 10 140 140 140 10 R 160 160 ? ? ? ? ? ? ? ? 8 10 R 5.57 10 kms ? ? ? 7 10 R 56 10 kms ? ? ? 6. (4) A-ii, B-iv, C-i, D-iii 7. (1) H mC T ? ? H 5 4186 80 ? ? ? ? ? C 4186J / kg ? ? H 400 4186 ? ? H 1674400J ? H 1674.40kJ ? 8. (2) a g sin1 sinr ? ? ? sin 45 1 sinr 1.5 ? ? 1 1.5 sinr 2 ? ? 3 sinr 2 2 ? *9. No option is matching 19 19 40 1.6 10 n 1.6 10 8 1 ? ? ? ? ? ? ? ? q i t ? ? ? ? ? ? ? 19 6.4 n 1.6 10 8 ? ? ? ? ? 19 n 10 ? 10. (3) 45 o 45 o 45 o r ? g ? a Electromotor, voltmeter and ammeter convents electrical energy to mechanical energy as in ammeter and voltmeter needle will deflect. 11. (1) Case I: v 1 m u 2 ? ? 2v 4 ? ? 1 1 1 f v u ? ? u 3f ? ? ? and 3t v 2 ? Case II: ? ? V ' 2 u 30 ? ? ? ? ? V ' 2 u 30 ? ? ? ? ? 1 1 1 f v ' u 30 ? ? ? ? ? ? ? 1 1 1 f 2 u 30 u 30 ? ? ? ? ? ? ? 1 3 f 2 u 30 ? ? ? 3f 6f 60 ? ? ? ? ? ? u 3f ? ? ? f 20cm ? 12. (3) 360 n ? ? (formula), Here ? ? n 1 6 n 6 ? ? ? ? 360 6 x 60 x ? ? ? ? ? Now, 360 360 n n x 30 30 ? ? ? ? n 12 ? (even) ? number of images ? ? n 1 11 ? ? ? 13. (2) Since water has maximum density at 4 C ? , therefore its volume must be minimum at 4 C ? CHEMISTRY 14. (1) 1950 15. (1) 2 3 Fe O 16. (3) Catalyst 17. (3) D Block 18. (2) 2 3 2 Fe O H O ? 19. (4) Bauxite formula - 2 3 2 Al O 2H O ? % of 2 3 Al O in Bauxite 102 100 73.91 138 ? ? ? 20. (2) 3 CaCO 21. (1) OH ? 22. (2) Neon 23. (1) Voting ink 24. (1) Methanol 25. (2) 3 6 Na AlF 26. (2) Cl, K, Br BIOLOGY 27. (1) 28. (4) Anaphase of mitosis, the sister chromosomes are separated in opposite direction. 29. (2) Conjoined twins are two babies who are born physically connected to each other ? the early embryo only partially separates to form two individuals. 30. (1) Calyx sepals accessory whorls corolla petals ? ? ? ? ? androceium stamen essential whorls gynoceium carpal / pistil ? ? ? ? ? 31. (3) Tiger, Sundarbans sanctuary of west Bengal is a tiger reserve, known as man eating tiger. 32. (4) Bat is a flying mammal. 33. (1) Saccharomyces cerevisiae is as known yeast plays an important role in fermentation. 34. (4) Interferon are produced by viral infected cells to protect the adjacent cells from viral infection. But hemophilia is X linked disorder, congenital disease. 35. (3) Alcohol decreases the efficiency of nervous system liver as well as lifespan of a person. 36. (4) 37. (4) DNA Replication RNA Transcription Proteins Translation Page 5 MAHARASHTRA NATIONAL TALENT SEARCH EXAMINATION, 2018-19 STAGE – 01 SCHOLASTIC APTITUDE TEST (SAT) SOLUTIONS PHYSICS 1. (1) As e 1 g R ? P E g g ? ? 2. (3) 3. (4) First three can be explained by refraction. 4. (2) 3 1 V 3.14km / s 3.14 10 ms ? ? ? ? N S ? ? d 2 r 2 R 4 ? ? ? ? ? ? ? d 2 6400 3600 2 10000km ? ? ? ? ? ? 3 3 2 r 2 10000 10 T T V 3.14 10 ? ? ? ? ? ? ? ? T 20000s ? 5. (3) Let us suppose that time require to cover 1 ? angle is t 160 T 160 t ? ? ? ? and 10 T 10 t ? ? ? As we know 2 3 T R ? 2 2 10 10 160 0 T R T R ? ? ? ? ? ? ? ? ? ? ? ? ? ? 2 3 10 3 18 R 10 t 160 t 140 10 ? ? ? ? ? ? ? ? ? ? 18 3 10 10 10 140 140 140 10 R 160 160 ? ? ? ? ? ? ? ? 8 10 R 5.57 10 kms ? ? ? 7 10 R 56 10 kms ? ? ? 6. (4) A-ii, B-iv, C-i, D-iii 7. (1) H mC T ? ? H 5 4186 80 ? ? ? ? ? C 4186J / kg ? ? H 400 4186 ? ? H 1674400J ? H 1674.40kJ ? 8. (2) a g sin1 sinr ? ? ? sin 45 1 sinr 1.5 ? ? 1 1.5 sinr 2 ? ? 3 sinr 2 2 ? *9. No option is matching 19 19 40 1.6 10 n 1.6 10 8 1 ? ? ? ? ? ? ? ? q i t ? ? ? ? ? ? ? 19 6.4 n 1.6 10 8 ? ? ? ? ? 19 n 10 ? 10. (3) 45 o 45 o 45 o r ? g ? a Electromotor, voltmeter and ammeter convents electrical energy to mechanical energy as in ammeter and voltmeter needle will deflect. 11. (1) Case I: v 1 m u 2 ? ? 2v 4 ? ? 1 1 1 f v u ? ? u 3f ? ? ? and 3t v 2 ? Case II: ? ? V ' 2 u 30 ? ? ? ? ? V ' 2 u 30 ? ? ? ? ? 1 1 1 f v ' u 30 ? ? ? ? ? ? ? 1 1 1 f 2 u 30 u 30 ? ? ? ? ? ? ? 1 3 f 2 u 30 ? ? ? 3f 6f 60 ? ? ? ? ? ? u 3f ? ? ? f 20cm ? 12. (3) 360 n ? ? (formula), Here ? ? n 1 6 n 6 ? ? ? ? 360 6 x 60 x ? ? ? ? ? Now, 360 360 n n x 30 30 ? ? ? ? n 12 ? (even) ? number of images ? ? n 1 11 ? ? ? 13. (2) Since water has maximum density at 4 C ? , therefore its volume must be minimum at 4 C ? CHEMISTRY 14. (1) 1950 15. (1) 2 3 Fe O 16. (3) Catalyst 17. (3) D Block 18. (2) 2 3 2 Fe O H O ? 19. (4) Bauxite formula - 2 3 2 Al O 2H O ? % of 2 3 Al O in Bauxite 102 100 73.91 138 ? ? ? 20. (2) 3 CaCO 21. (1) OH ? 22. (2) Neon 23. (1) Voting ink 24. (1) Methanol 25. (2) 3 6 Na AlF 26. (2) Cl, K, Br BIOLOGY 27. (1) 28. (4) Anaphase of mitosis, the sister chromosomes are separated in opposite direction. 29. (2) Conjoined twins are two babies who are born physically connected to each other ? the early embryo only partially separates to form two individuals. 30. (1) Calyx sepals accessory whorls corolla petals ? ? ? ? ? androceium stamen essential whorls gynoceium carpal / pistil ? ? ? ? ? 31. (3) Tiger, Sundarbans sanctuary of west Bengal is a tiger reserve, known as man eating tiger. 32. (4) Bat is a flying mammal. 33. (1) Saccharomyces cerevisiae is as known yeast plays an important role in fermentation. 34. (4) Interferon are produced by viral infected cells to protect the adjacent cells from viral infection. But hemophilia is X linked disorder, congenital disease. 35. (3) Alcohol decreases the efficiency of nervous system liver as well as lifespan of a person. 36. (4) 37. (4) DNA Replication RNA Transcription Proteins Translation Adrenal gland is present above the kidney (Renal of gland) 38. (1) Glycolysis breaks down glucose into pyruvic acid, gets converted to acetyl-coA which together with oxaloacetic acid citrate. Enters into Krebs cycle. 39. (3) Columnar epithelium – secretion of digestive juice Wearing of organs – squamous epithelium Reabsorption of useful material – cuboidal epithelium 40. (2) 1 Long cylindrical, metameric ally segmented 2 Triploblastic, bilaterally symmetrical, eucoelomate 3 They have setae or parapodia or suckers for locomotion. Annelida SOCIAL STUDIES 41. (1) Voltaire 42. (4) The Indian war of independence nationalist history. 43. (2) Pune 44. (3) Nagara style 45. (3) James Augustus Hickey 46. (3) Saint Namdev 47. (1) Thaki 48. (2) Books 49. (4) Mumbai – Chhatrapati Shivaji Maharaj Vastu Sangrahalay / Ahmedabad – The Calico Museum of Textiles 50. (1) Michel Foucault 51. (4) Indo-Gothic 52. (2) Journalist 53. (2) 29 th August 54. (2) Mrinal Gore 55. (2) Automobile industry 56. (4) Kapil Dev 57. (3) 73 rd and 74 thRead More
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