Maharashtra: State Level Solution (SAT) - 2018-19

 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
th