Maharashtra: State Level Solution (SAT) - 2019-20 | NTSE for Class 10 PDF Download

 Page 1


     
 
 
 
    
 
 
MAHARASHTRA 
 
NATIONAL TALENT SEARCH EXAMINATION, 2019-20 
 
STAGE – 01 
 
SCHOLASTIC APTITUDE TEST (SAT) 
 
 
 
PHYSICS SOLUTION 
 
 
1. 4 
 Time of flight, 
 
1
2u T g
Tu
g2
8 10
u 40 ms
2
-
?
= ? =
?
=?
 
 Max. height reached, 
( )
2
2
u 40
H 80 m
2g 2 10
= = =
?
 
 
2.  
 Specific heat capacity of water = 
o
1 cal / g C - 
 Latent heat of fusion of ice 80 cal / g = 
 Latent heat of vaporization of water 540 cal / g = 
 Lat final temperature of mixture be 
o
TC 
 Taking reference temperature as 
o
0C 
 Heat taken from steam 200 540 200 1 100 128000 cal = ? + ? ? = 
 Hat given to ice to convert into water at
o
0C 
 
800 80
64000 cal
=?
=
 
 Remaining heat to be given to mixture  
 
( ) ( )
o
128000 64000
64000 cal
64000 800 200 1 T 0
T 64 C
-
=
? = + ? ? -
=
 
 
3. 2 
 Rods work in low light conditions to help night vision, but cones work in day light and are responsible for colour 
 discrimination. 
 
4. 1 
Page 2


     
 
 
 
    
 
 
MAHARASHTRA 
 
NATIONAL TALENT SEARCH EXAMINATION, 2019-20 
 
STAGE – 01 
 
SCHOLASTIC APTITUDE TEST (SAT) 
 
 
 
PHYSICS SOLUTION 
 
 
1. 4 
 Time of flight, 
 
1
2u T g
Tu
g2
8 10
u 40 ms
2
-
?
= ? =
?
=?
 
 Max. height reached, 
( )
2
2
u 40
H 80 m
2g 2 10
= = =
?
 
 
2.  
 Specific heat capacity of water = 
o
1 cal / g C - 
 Latent heat of fusion of ice 80 cal / g = 
 Latent heat of vaporization of water 540 cal / g = 
 Lat final temperature of mixture be 
o
TC 
 Taking reference temperature as 
o
0C 
 Heat taken from steam 200 540 200 1 100 128000 cal = ? + ? ? = 
 Hat given to ice to convert into water at
o
0C 
 
800 80
64000 cal
=?
=
 
 Remaining heat to be given to mixture  
 
( ) ( )
o
128000 64000
64000 cal
64000 800 200 1 T 0
T 64 C
-
=
? = + ? ? -
=
 
 
3. 2 
 Rods work in low light conditions to help night vision, but cones work in day light and are responsible for colour 
 discrimination. 
 
4. 1 
     
 
 
 
    
  
 
12
d d d
350 8 1500 4
22
4400 M
4.4 KM
=+
??
=+
=
=
 
5. 3 
 theoretical 
 
6. 2  
  
 
 Using Snall’s law, 
 
oo
8
6
1 sin45 sin30
C
2
V
3 10
V
2
V 2.12 10 m / s
? = ? ?
? = =
?
=
=?
 
7. 2 
 theoretical 
 
8. 2 
 
( )
( )
2
2
1
1 2
V 220
R
P 1320
V 220 1320
i 6A
R
220
==
?
= = ?
 
 Now, at low temp., 
21
i i / 3 2A == 
 ? Power used, 
22
P Vi
200 2
440 W
=
=?
=
 
 
9. 4 
 m = 250 kg, t = 60 sec, h = 150 m 
 Power of pump, 
mgh 250 10 150
P
t 60
??
== 
Page 3


     
 
 
 
    
 
 
MAHARASHTRA 
 
NATIONAL TALENT SEARCH EXAMINATION, 2019-20 
 
STAGE – 01 
 
SCHOLASTIC APTITUDE TEST (SAT) 
 
 
 
PHYSICS SOLUTION 
 
 
1. 4 
 Time of flight, 
 
1
2u T g
Tu
g2
8 10
u 40 ms
2
-
?
= ? =
?
=?
 
 Max. height reached, 
( )
2
2
u 40
H 80 m
2g 2 10
= = =
?
 
 
2.  
 Specific heat capacity of water = 
o
1 cal / g C - 
 Latent heat of fusion of ice 80 cal / g = 
 Latent heat of vaporization of water 540 cal / g = 
 Lat final temperature of mixture be 
o
TC 
 Taking reference temperature as 
o
0C 
 Heat taken from steam 200 540 200 1 100 128000 cal = ? + ? ? = 
 Hat given to ice to convert into water at
o
0C 
 
800 80
64000 cal
=?
=
 
 Remaining heat to be given to mixture  
 
( ) ( )
o
128000 64000
64000 cal
64000 800 200 1 T 0
T 64 C
-
=
? = + ? ? -
=
 
 
3. 2 
 Rods work in low light conditions to help night vision, but cones work in day light and are responsible for colour 
 discrimination. 
 
4. 1 
     
 
 
 
    
  
 
12
d d d
350 8 1500 4
22
4400 M
4.4 KM
=+
??
=+
=
=
 
5. 3 
 theoretical 
 
6. 2  
  
 
 Using Snall’s law, 
 
oo
8
6
1 sin45 sin30
C
2
V
3 10
V
2
V 2.12 10 m / s
? = ? ?
? = =
?
=
=?
 
7. 2 
 theoretical 
 
8. 2 
 
( )
( )
2
2
1
1 2
V 220
R
P 1320
V 220 1320
i 6A
R
220
==
?
= = ?
 
 Now, at low temp., 
21
i i / 3 2A == 
 ? Power used, 
22
P Vi
200 2
440 W
=
=?
=
 
 
9. 4 
 m = 250 kg, t = 60 sec, h = 150 m 
 Power of pump, 
mgh 250 10 150
P
t 60
??
== 
     
 
 
 
    
 
( )
250 10 150
P H.P.
60 746
8.38 H.P.
??
=
?
=
 
 ? Required power should be 9 H.P. 
 
10. 3 
 Constant temperature 
o
80 50
65 C
2
+
== 
 On touching, heat exchange by conduction without touching, heat exchange by radiation. 
 
 
11. 1 
 For lens, 
  
uf 12 20
V
u f 12 20
V 30 cm
?
=?
+ - +
=-
 
 for mirror, object distance 30 10 40 cm = + ? 
 ?Final image = 40 cm behind mirror. 
 
12. 4 
 theoretical 
 
13. 1 
 Power of combination : 
 
1 2 3
3
8
8
8
P P P P
2.7 2.5 1.7 P
P 1.5 D
100 10.0
F
P 1.5
66.66 cm
= + +
= + +
=-
? = =
-
=-
  
  
  
 NOTE:  
Answer of Q.NO. 2 is coming 64
o
C. 
Q.NO. 5, 7, 12 are theoretical and hence no solutions are required for these questions. 
 
 
CHEMISTRY SOLUTION 
14. 3 
 (Group 13 – 18) P-block elements. 
 
15. 2 
 Platinum exist in free state. 
 
16. 4 
 Ethanoic acid is known as Glacial Acetic Acid. 
 
17. 3 
 Trans Uranic element. 
 
18. 3 
 
22
CH ethyne 
 
19. 1 
 3422 melting point of Tungsten.  
 
20. 3 
 
4
NH OH - Weak base due to less ionisation 
 
21. 2
66
CH 
 
22. 1 
Page 4


     
 
 
 
    
 
 
MAHARASHTRA 
 
NATIONAL TALENT SEARCH EXAMINATION, 2019-20 
 
STAGE – 01 
 
SCHOLASTIC APTITUDE TEST (SAT) 
 
 
 
PHYSICS SOLUTION 
 
 
1. 4 
 Time of flight, 
 
1
2u T g
Tu
g2
8 10
u 40 ms
2
-
?
= ? =
?
=?
 
 Max. height reached, 
( )
2
2
u 40
H 80 m
2g 2 10
= = =
?
 
 
2.  
 Specific heat capacity of water = 
o
1 cal / g C - 
 Latent heat of fusion of ice 80 cal / g = 
 Latent heat of vaporization of water 540 cal / g = 
 Lat final temperature of mixture be 
o
TC 
 Taking reference temperature as 
o
0C 
 Heat taken from steam 200 540 200 1 100 128000 cal = ? + ? ? = 
 Hat given to ice to convert into water at
o
0C 
 
800 80
64000 cal
=?
=
 
 Remaining heat to be given to mixture  
 
( ) ( )
o
128000 64000
64000 cal
64000 800 200 1 T 0
T 64 C
-
=
? = + ? ? -
=
 
 
3. 2 
 Rods work in low light conditions to help night vision, but cones work in day light and are responsible for colour 
 discrimination. 
 
4. 1 
     
 
 
 
    
  
 
12
d d d
350 8 1500 4
22
4400 M
4.4 KM
=+
??
=+
=
=
 
5. 3 
 theoretical 
 
6. 2  
  
 
 Using Snall’s law, 
 
oo
8
6
1 sin45 sin30
C
2
V
3 10
V
2
V 2.12 10 m / s
? = ? ?
? = =
?
=
=?
 
7. 2 
 theoretical 
 
8. 2 
 
( )
( )
2
2
1
1 2
V 220
R
P 1320
V 220 1320
i 6A
R
220
==
?
= = ?
 
 Now, at low temp., 
21
i i / 3 2A == 
 ? Power used, 
22
P Vi
200 2
440 W
=
=?
=
 
 
9. 4 
 m = 250 kg, t = 60 sec, h = 150 m 
 Power of pump, 
mgh 250 10 150
P
t 60
??
== 
     
 
 
 
    
 
( )
250 10 150
P H.P.
60 746
8.38 H.P.
??
=
?
=
 
 ? Required power should be 9 H.P. 
 
10. 3 
 Constant temperature 
o
80 50
65 C
2
+
== 
 On touching, heat exchange by conduction without touching, heat exchange by radiation. 
 
 
11. 1 
 For lens, 
  
uf 12 20
V
u f 12 20
V 30 cm
?
=?
+ - +
=-
 
 for mirror, object distance 30 10 40 cm = + ? 
 ?Final image = 40 cm behind mirror. 
 
12. 4 
 theoretical 
 
13. 1 
 Power of combination : 
 
1 2 3
3
8
8
8
P P P P
2.7 2.5 1.7 P
P 1.5 D
100 10.0
F
P 1.5
66.66 cm
= + +
= + +
=-
? = =
-
=-
  
  
  
 NOTE:  
Answer of Q.NO. 2 is coming 64
o
C. 
Q.NO. 5, 7, 12 are theoretical and hence no solutions are required for these questions. 
 
 
CHEMISTRY SOLUTION 
14. 3 
 (Group 13 – 18) P-block elements. 
 
15. 2 
 Platinum exist in free state. 
 
16. 4 
 Ethanoic acid is known as Glacial Acetic Acid. 
 
17. 3 
 Trans Uranic element. 
 
18. 3 
 
22
CH ethyne 
 
19. 1 
 3422 melting point of Tungsten.  
 
20. 3 
 
4
NH OH - Weak base due to less ionisation 
 
21. 2
66
CH 
 
22. 1 
     
 
 
 
    
 
HC CH
2
C
6
H
5
-CH=CH
2
Styrene
   
 
23. 4 
 60 – 70 carbon % in lignite. 
 
24. 4 
 Copper sulphate solution 
 
25. 4 
 Aqua regia (HCl : HNO3) 
 
26. 2 
 Colourless due to formation of ZnSO4 (Bonus) 
 
 
 
 
. 
 
BIOLOGY SOLUTION 
27. (2) 
 Mutation is a sudden change which occurs in any nucleotide sequence 
 
28. (3) 
During Anaphase step of mitosis, centromeres split and thereby sister chromatids of each chromosome 
separate and they are pulled apart in opposite direction. 
 
29. (3) 
 In the given figure, labelled part C is Cowper’s gland. 
 
30. (1) 
Zygote formation step takes place during sexual reproduction while other three are types of asexual 
reproduction. 
  
31. (3) 
 Red panda and musk deer are rare species. 
 
32. (2) 
 Planaria is an example of animal is phylum Platyhelminthes. 
 
33. (4) 
 Octopus belonging to phylum Mollusca can perform three types of locomotion swimming, creeping and walking. 
 
34. (1) 
 Saccharomyces cerevisiae is used in preparing beverage cider by fermenting juice in apple. 
 
35. (3) 
 Aspergillus niger is  used to prepare chocolates and toffees from sugar molasses and salt. 
 
36. (2) 
 Golden Rice is a variety of rice produced through genetic engineering to synthesize vitamin A (Beta Carotene) 
 
37. (4) 
 Maharashtra is the first state to start a separate cyber crime unit. 
 
38. (1) 
 Impact of disaster ? Response ? Resurgence ? Preparation ? Redemption ? Preparedness 
 
39. (1) 
 Turner’s syndrome is a chromosomal disorder in which a female is born with only one X chromosome, 44+ X0 
 
40. (3) 
 Clostridium bacteria causes spoilage of cooked/tinned food causing food poisoning. 
 
Page 5


     
 
 
 
    
 
 
MAHARASHTRA 
 
NATIONAL TALENT SEARCH EXAMINATION, 2019-20 
 
STAGE – 01 
 
SCHOLASTIC APTITUDE TEST (SAT) 
 
 
 
PHYSICS SOLUTION 
 
 
1. 4 
 Time of flight, 
 
1
2u T g
Tu
g2
8 10
u 40 ms
2
-
?
= ? =
?
=?
 
 Max. height reached, 
( )
2
2
u 40
H 80 m
2g 2 10
= = =
?
 
 
2.  
 Specific heat capacity of water = 
o
1 cal / g C - 
 Latent heat of fusion of ice 80 cal / g = 
 Latent heat of vaporization of water 540 cal / g = 
 Lat final temperature of mixture be 
o
TC 
 Taking reference temperature as 
o
0C 
 Heat taken from steam 200 540 200 1 100 128000 cal = ? + ? ? = 
 Hat given to ice to convert into water at
o
0C 
 
800 80
64000 cal
=?
=
 
 Remaining heat to be given to mixture  
 
( ) ( )
o
128000 64000
64000 cal
64000 800 200 1 T 0
T 64 C
-
=
? = + ? ? -
=
 
 
3. 2 
 Rods work in low light conditions to help night vision, but cones work in day light and are responsible for colour 
 discrimination. 
 
4. 1 
     
 
 
 
    
  
 
12
d d d
350 8 1500 4
22
4400 M
4.4 KM
=+
??
=+
=
=
 
5. 3 
 theoretical 
 
6. 2  
  
 
 Using Snall’s law, 
 
oo
8
6
1 sin45 sin30
C
2
V
3 10
V
2
V 2.12 10 m / s
? = ? ?
? = =
?
=
=?
 
7. 2 
 theoretical 
 
8. 2 
 
( )
( )
2
2
1
1 2
V 220
R
P 1320
V 220 1320
i 6A
R
220
==
?
= = ?
 
 Now, at low temp., 
21
i i / 3 2A == 
 ? Power used, 
22
P Vi
200 2
440 W
=
=?
=
 
 
9. 4 
 m = 250 kg, t = 60 sec, h = 150 m 
 Power of pump, 
mgh 250 10 150
P
t 60
??
== 
     
 
 
 
    
 
( )
250 10 150
P H.P.
60 746
8.38 H.P.
??
=
?
=
 
 ? Required power should be 9 H.P. 
 
10. 3 
 Constant temperature 
o
80 50
65 C
2
+
== 
 On touching, heat exchange by conduction without touching, heat exchange by radiation. 
 
 
11. 1 
 For lens, 
  
uf 12 20
V
u f 12 20
V 30 cm
?
=?
+ - +
=-
 
 for mirror, object distance 30 10 40 cm = + ? 
 ?Final image = 40 cm behind mirror. 
 
12. 4 
 theoretical 
 
13. 1 
 Power of combination : 
 
1 2 3
3
8
8
8
P P P P
2.7 2.5 1.7 P
P 1.5 D
100 10.0
F
P 1.5
66.66 cm
= + +
= + +
=-
? = =
-
=-
  
  
  
 NOTE:  
Answer of Q.NO. 2 is coming 64
o
C. 
Q.NO. 5, 7, 12 are theoretical and hence no solutions are required for these questions. 
 
 
CHEMISTRY SOLUTION 
14. 3 
 (Group 13 – 18) P-block elements. 
 
15. 2 
 Platinum exist in free state. 
 
16. 4 
 Ethanoic acid is known as Glacial Acetic Acid. 
 
17. 3 
 Trans Uranic element. 
 
18. 3 
 
22
CH ethyne 
 
19. 1 
 3422 melting point of Tungsten.  
 
20. 3 
 
4
NH OH - Weak base due to less ionisation 
 
21. 2
66
CH 
 
22. 1 
     
 
 
 
    
 
HC CH
2
C
6
H
5
-CH=CH
2
Styrene
   
 
23. 4 
 60 – 70 carbon % in lignite. 
 
24. 4 
 Copper sulphate solution 
 
25. 4 
 Aqua regia (HCl : HNO3) 
 
26. 2 
 Colourless due to formation of ZnSO4 (Bonus) 
 
 
 
 
. 
 
BIOLOGY SOLUTION 
27. (2) 
 Mutation is a sudden change which occurs in any nucleotide sequence 
 
28. (3) 
During Anaphase step of mitosis, centromeres split and thereby sister chromatids of each chromosome 
separate and they are pulled apart in opposite direction. 
 
29. (3) 
 In the given figure, labelled part C is Cowper’s gland. 
 
30. (1) 
Zygote formation step takes place during sexual reproduction while other three are types of asexual 
reproduction. 
  
31. (3) 
 Red panda and musk deer are rare species. 
 
32. (2) 
 Planaria is an example of animal is phylum Platyhelminthes. 
 
33. (4) 
 Octopus belonging to phylum Mollusca can perform three types of locomotion swimming, creeping and walking. 
 
34. (1) 
 Saccharomyces cerevisiae is used in preparing beverage cider by fermenting juice in apple. 
 
35. (3) 
 Aspergillus niger is  used to prepare chocolates and toffees from sugar molasses and salt. 
 
36. (2) 
 Golden Rice is a variety of rice produced through genetic engineering to synthesize vitamin A (Beta Carotene) 
 
37. (4) 
 Maharashtra is the first state to start a separate cyber crime unit. 
 
38. (1) 
 Impact of disaster ? Response ? Resurgence ? Preparation ? Redemption ? Preparedness 
 
39. (1) 
 Turner’s syndrome is a chromosomal disorder in which a female is born with only one X chromosome, 44+ X0 
 
40. (3) 
 Clostridium bacteria causes spoilage of cooked/tinned food causing food poisoning. 
 
     
 
 
 
    
 
 
  
 
SOCIAL STUDIES 
 
41. 1 
42. 4 
43. 2 
44. 4 
45. 3 
46. 4 
47. 1 
48. 2 
49. Bonus 
50. 4 
51. 3 
52. 2 
53. 1 
54. 1 
55. 4 
56. 2 
57. 3 
58. 1 
59. 4 
60. 2 
61. 4 
62. 1 
63. 4 
64. 4 
65. 2 
66. 3 
67. 4 
68. 2 
69. 3 
70. 2 
71. 4 
72. 1 
73. 3 
74. 4 
75. 4 
76. 2 
77. 3 
78. 3 
79. 1 
80. 2 
 
MATHS SOLUTION 
81. Numbers divisible by 7 are 
 7 , 14 , 21, ….. 994 
 ? 
( )
n
a 7 n 1 7 = + - 
  994 = 
? ?
7 1 n 1 +- 
  n 142 = 
 ? 
? ?
142
142
S 7 994
2
=+ 
  71071 = 
 
82. Dividend  
  = 20% of 100 160 ? 
  = 20 160 ? 
  = 3200 
 Return % = 
3200
100
19200
? 
  = 16.67%