PYQ Vault
Bank
Guides
Notes
NDA
Sign in
Filtered questions
4,860 questions match
Filters
1
Download
· 4860
Filtering by:
Exam: NDA
Clear all
Copy link
Q2251
#2251
Chemistry → Chemical Bonding → Ionic and Covalent Bonding
·
Moderate
Which one of the following is a covalent compound?
Add
Playbook: Chemical Bonding
A
Calcium oxide
B
Sodium nitride
C
Silicon carbide
D
Zinc sulphide
Tap an option to check your answer.
Show solution
[Q61 · Apr · 2022]
Report
Q2252
#2252
Chemistry → Atomic Structure and Periodic Classification → Atomic Number, Mass Number and Subatomic Particles
·
Easy
The mass number of argon is 40. Which one of the following statements is correct?
Add
Playbook: Atomic Structure and Periodic Classification
A
The number of protons in argon is 22.
B
The number of neutrons in argon is 18.
C
The number of electrons in argon is 18.
D
The sum of numbers of protons and electrons in argon is 40.
Tap an option to check your answer.
Show solution
[Q62 · Apr · 2022]
Report
Q2253
#2253
Chemistry → Atomic Structure and Periodic Classification → Periodic Trends, Valency and Atomicity
·
Hard
Which one of the following is the correct order of the valencies of elements Ne, Si, N and Mg?
Add
Playbook: Atomic Structure and Periodic Classification
A
N
e
<
M
g
<
N
<
S
i
Ne < Mg < N < Si
N
e
<
M
g
<
N
<
S
i
B
S
i
<
N
<
M
g
<
N
e
Si < N < Mg < Ne
S
i
<
N
<
M
g
<
N
e
C
N
e
<
N
<
S
i
<
M
g
Ne < N < Si < Mg
N
e
<
N
<
S
i
<
M
g
D
M
g
<
N
e
<
N
<
S
i
Mg < Ne < N < Si
M
g
<
N
e
<
N
<
S
i
Tap an option to check your answer.
Show solution
[Q63 · Apr · 2022]
Report
Q2254
#2254
Physics → Sound → Wave Equation, Speed, and Frequency Bands
·
Easy
The frequency of an alternating current is 3 Hz. It implies that
Add
Playbook: Sound
A
there are 6 cycles/s
B
there are 3 cycles/s
C
there are 2 cycles/s
D
there is only 1 cycle/s
Tap an option to check your answer.
Show solution
[Q64 · Apr · 2022]
Report
Q2255
#2255
Physics → Electricity and Magnetism → Resistance and Resistivity
·
Easy
Which one of the following correctly represents the SI unit of resistivity?
Add
Playbook: Electricity and Magnetism
A
Ω
\Omega
Ω
B
Ω
/
m
\Omega/\text{m}
Ω/
m
C
Ω
cm
\Omega\,\text{cm}
Ω
cm
D
Ω
m
\Omega\,\text{m}
Ω
m
Tap an option to check your answer.
Show solution
[Q65 · Apr · 2022]
Report
Q2256
#2256
Physics → Electricity and Magnetism → Electrical Power, Energy and Heating
·
Easy
What is the current required to light a 60 W incandescent bulb in a domestic supply of 240 V?
Add
Playbook: Electricity and Magnetism
A
0
⋅
5
A
0\cdot5 \, \text{A}
0
⋅
5
A
B
0
⋅
25
A
0\cdot25 \, \text{A}
0
⋅
25
A
C
1
⋅
0
A
1\cdot0 \, \text{A}
1
⋅
0
A
D
5
⋅
0
A
5\cdot0 \, \text{A}
5
⋅
0
A
Tap an option to check your answer.
Show solution
[Q66 · Apr · 2022]
Report
Q2257
#2257
Physics → Electricity and Magnetism → Magnetism and Magnetic Effects of Current
·
Moderate
The magnetic field produced by a current-carrying straight wire at a point outside the wire depends
Add
Playbook: Electricity and Magnetism
A
inversely on the distance from it
B
directly on the distance from it
C
inversely at short distances and directly at large distances from it
D
directly on the distance (at short distances) and inversely on the distance (at long distances) from it
Tap an option to check your answer.
Show solution
[Q67 · Apr · 2022]
Report
Q2258
#2258
Physics → Units, Measurement and Dimensions → Units and Dimensions
·
Moderate
What is the dimension of gravitational constant?
Add
Playbook: Units, Measurement and Dimensions
A
M
L
3
T
−
2
ML^3T^{-2}
M
L
3
T
−
2
B
M
−
1
L
3
T
−
2
M^{-1}L^3T^{-2}
M
−
1
L
3
T
−
2
C
M
2
L
−
2
T
−
2
M^2L^{-2}T^{-2}
M
2
L
−
2
T
−
2
D
M
2
L
−
1
T
−
2
M^2L^{-1}T^{-2}
M
2
L
−
1
T
−
2
Tap an option to check your answer.
Show solution
[Q68 · Apr · 2022]
Report
Q2259
#2259
Physics → Kinematics and Motion → Projectile and Vertical Motion
·
Easy
A ball is thrown vertically upward with a speed of 40 m/s. The time taken by the ball to reach the maximum height would be approximately
Add
Playbook: Kinematics and Motion
A
2
s
2 \, \text{s}
2
s
B
3
s
3 \, \text{s}
3
s
C
4
s
4 \, \text{s}
4
s
D
5
s
5 \, \text{s}
5
s
Tap an option to check your answer.
Show solution
[Q69 · Apr · 2022]
Report
Q2260
#2260
Physics → Oscillations and Waves → Simple Pendulum
·
Easy
The time period of a 1 m long pendulum approximates to
Add
Playbook: Oscillations and Waves
A
6
s
6 \, \text{s}
6
s
B
4
s
4 \, \text{s}
4
s
C
2
s
2 \, \text{s}
2
s
D
1
s
1 \, \text{s}
1
s
Tap an option to check your answer.
Show solution
[Q70 · Apr · 2022]
Report
Q2261
#2261
Biology → Cell Biology → Cell Structure Fundamentals
·
Easy
Which of the following statements about living and non-living being is/are correct? 1. While living being can demonstrate growth and repair, non-living being cannot. 2. While living being demonstrates metabolic processes, non-living being does not. Select the correct answer using the code given below.
Add
Playbook: Cell Biology
A
1 only
B
2 only
C
Both 1 and 2
D
Neither 1 nor 2
Tap an option to check your answer.
Show solution
[Q71 · Apr · 2022]
Report
Q2262
#2262
Biology → Cell Biology → Cell Organelles and Functions
·
Moderate
Which one of the following plant plastids stores starch, oil and protein granules?
Add
Playbook: Cell Biology
A
Chloroplast
B
Leucoplast
C
Chromoplast
D
Xanthoplast
Tap an option to check your answer.
Show solution
[Q72 · Apr · 2022]
Report
Q2263
#2263
Biology → Cell Biology → Cell Organelles and Functions
·
Moderate
Which one of the following statements about 'vacuoles' is
not
\textbf{\text{not}}
not
correct?
Add
Playbook: Cell Biology
A
In plants, there is a large central vacuole that may occupy 90% of total cell volume.
B
In plant cells, vacuoles provide turgidity and rigidity.
C
In Amoeba, vacuoles have role in nutrition.
D
Vacuoles are absent in animal cells.
Tap an option to check your answer.
Show solution
[Q73 · Apr · 2022]
Report
Q2264
#2264
Biology → Plant Biology → Plant Tissues and Meristems
·
Moderate
In aquatic plants, large air sacs give them buoyancy effects. These sacs are surrounded by which one of the following types of tissues?
Add
Playbook: Plant Biology
A
Parenchyma
B
Collenchyma
C
Sclerenchyma
D
Complex tissue
Tap an option to check your answer.
Show solution
[Q74 · Apr · 2022]
Report
Q2265
#2265
Biology → Biodiversity and Classification → Animal Kingdom Classification
·
Moderate
Which one of the following belongs to 'Pisces'?
Add
Playbook: Biodiversity and Classification
A
Dogfish
B
Jellyfish
C
Silverfish
D
Starfish
Tap an option to check your answer.
Show solution
[Q75 · Apr · 2022]
Report
Q2266
#2266
Biology → Biodiversity and Classification → Plant Kingdom Classification
·
Easy
Which one of the following groups is called 'amphibians of plant kingdom'?
Add
Playbook: Biodiversity and Classification
A
Bryophytes
B
Thallophytes
C
Pteridophytes
D
Gymnosperms
Tap an option to check your answer.
Show solution
[Q76 · Apr · 2022]
Report
Q2267
#2267
Biology → Microbiology and Disease → Pathogens and Diseases
·
Easy
Which one of the following is caused by a bacterial pathogen?
Add
Playbook: Microbiology and Disease
A
AIDS
B
Dengue fever
C
COVID-19
D
Typhoid fever
Tap an option to check your answer.
Show solution
[Q77 · Apr · 2022]
Report
Q2268
#2268
Physics → Light and Optics → Light Phenomena and Spectrum
·
Easy
The twinkling of a star is due to the atmospheric
Add
Playbook: Light and Optics
A
diffraction of starlight
B
reflection of starlight
C
refraction of starlight
D
dispersion of starlight
Tap an option to check your answer.
Show solution
[Q78 · Apr · 2022]
Report
Q2269
#2269
Physics → Work, Energy and Power → Work and Work Done
·
Moderate
A mass M is dragged by a pulley on a horizontal plane by a force anti-parallel to its displacement. The work done in pulling the mass M is
Add
Playbook: Work, Energy and Power
A
zero
B
positive
C
infinite
D
negative
Tap an option to check your answer.
Show solution
[Q79 · Apr · 2022]
Report
Q2270
#2270
Physics → Laws of Motion and Forces → Newton's Laws of Motion
·
Easy
A 5 N force is defined when a mass of 10 kg is accelerated with
Add
Playbook: Laws of Motion and Forces
A
5
⋅
0
cm/s
2
5\cdot0 \, \text{cm/s}^2
5
⋅
0
cm/s
2
B
0
⋅
5
m/s
2
0\cdot5 \, \text{m/s}^2
0
⋅
5
m/s
2
C
0
⋅
5
cm/s
2
0\cdot5 \, \text{cm/s}^2
0
⋅
5
cm/s
2
D
5
⋅
0
m/s
2
5\cdot0 \, \text{m/s}^2
5
⋅
0
m/s
2
Tap an option to check your answer.
Show solution
[Q80 · Apr · 2022]
Report
Q2271
#2271
Physics → Laws of Motion and Forces → Conservation of Momentum and Collisions
·
Moderate
A boy of mass 52 kg jumps with a horizontal velocity of 2 m/s onto a stationary cart of mass 3 kg. The cart is fixed with frictionless wheels. Which one of the following would be the speed of the cart?
Add
Playbook: Laws of Motion and Forces
A
2
⋅
15
m/s
2\cdot15 \, \text{m/s}
2
⋅
15
m/s
B
1
⋅
89
m/s
1\cdot89 \, \text{m/s}
1
⋅
89
m/s
C
1
⋅
51
m/s
1\cdot51 \, \text{m/s}
1
⋅
51
m/s
D
2
⋅
51
m/s
2\cdot51 \, \text{m/s}
2
⋅
51
m/s
Tap an option to check your answer.
Show solution
[Q81 · Apr · 2022]
Report
Q2272
#2272
Physics → Work, Energy and Power → Energy and Conservation
·
Easy
The energy possessed by a body due to its change in position or shape is called
Add
Playbook: Work, Energy and Power
A
thermal energy
B
potential energy
C
kinetic energy
D
electric energy
Tap an option to check your answer.
Show solution
[Q82 · Apr · 2022]
Report
Q2273
#2273
Physics → Sound → Wave Equation, Speed, and Frequency Bands
·
Moderate
A sound wave has a frequency of 1 kHz and wavelength 50 cm. How long will it take to travel 1 km?
Add
Playbook: Sound
A
5
s
5 \, \text{s}
5
s
B
4
s
4 \, \text{s}
4
s
C
3
s
3 \, \text{s}
3
s
D
2
s
2 \, \text{s}
2
s
Tap an option to check your answer.
Show solution
[Q83 · Apr · 2022]
Report
Q2274
#2274
Chemistry → Atomic Structure and Periodic Classification → Electron Configuration and Valence Shells
·
Moderate
For an element with atomic number 35, which one of the following will be the correct number of electrons in its valence shell based on Bohr's model of an atom?
Add
Playbook: Atomic Structure and Periodic Classification
A
1
B
3
C
5
D
7
Tap an option to check your answer.
Show solution
[Q84 · Apr · 2022]
Report
Q2275
#2275
Chemistry → Chemical Reactions → Redox: Oxidation, Reduction and Reducing Agents
·
Moderate
Which one of the following is
not
\textbf{\text{not}}
not
an example of a redox reaction?
Add
Playbook: Chemical Reactions
A
A
l
C
l
3
+
3
H
2
O
→
A
l
(
O
H
)
3
+
3
H
C
l
AlCl_3 + 3H_2O \rightarrow Al(OH)_3 + 3HCl
A
l
C
l
3
+
3
H
2
O
→
A
l
(
O
H
)
3
+
3
H
C
l
B
2
N
a
H
→
2
N
a
+
H
2
2NaH \rightarrow 2Na + H_2
2
N
a
H
→
2
N
a
+
H
2
C
4
F
e
+
3
O
2
→
2
F
e
2
O
3
4Fe + 3O_2 \rightarrow 2Fe_2O_3
4
F
e
+
3
O
2
→
2
F
e
2
O
3
D
C
u
S
O
4
+
Z
n
→
C
u
+
Z
n
S
O
4
CuSO_4 + Zn \rightarrow Cu + ZnSO_4
C
u
S
O
4
+
Z
n
→
C
u
+
Z
n
S
O
4
Tap an option to check your answer.
Show solution
[Q85 · Apr · 2022]
Report
Prev
Page 91 of 195
Next
1
…
90
91
92
…
195
PYQ Vault
Bank
Guides
Notes
NDA
Sign in