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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
th
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