02/08/2023 Code-A
Corporate Office : Aakash Tower, 8, Pusa Road, New Delhi-110005,
Ph.011-47623456
MM : 720 Term Exam-2023-25_TYM(P1)-TE02A Time : 200 Min.
Topics Covered:
Physics : Motion in a Straight Line, Motion in a Plane
Chemistry : Structure of Atom, Classification of Elements and Periodicity in Properties
Botany : The Living World, Biological Classification
Zoology : Digestion & Absorption, Breathing & Exchange of Gases
General Instructions :
1. There are two sections in each subject, i.e. Section-A & Section-B. You have to attempt all 35 questions from
Section-A & only 10 questions from Section-B out of 15.
2. Each question carries +4 marks. For every wrong response, –1 mark shall be deducted from the total score.
Unanswered/unattempted questions will be given no marks.
3. Use blue/black ballpoint pen only to darken the appropriate circle.
4. Mark should be dark and completely fill the circle.
5. Dark only one circle for each entry.
6. Dark the circle in the space provided only.
7. Rough work must not be done on the Answer sheet and do not use white fluid or any other rubbing material on the
Answer sheet.
PHYSICS
SECTION-A
1. Position of a particle varies with time as x = 3. The magnitude of velocity of a body is given
t3 – 3t2 + 4. What will be its speed at the by v = |t – 6| m/s, then average speed of
moment when its acceleration is zero? (x is body between 2 s to 6 s will be
in metre and t is in seconds) (1) 2 m/s
(1) Zero (2) 6 m/s
(2) 7 m/s (3) 3.5 m/s
(3) 3 m/s (4) 4.5 m/s
(4) 6 m/s
4. A : Average velocity is a vector quantity.
2. Choose the correct statement R : Average speed ≥ |average velocity|.
(1) In a straight line motion a particle can (1) Both assertion and reason are true and
speed up with decreasing acceleration. the reason is the correct explanation of
the assertion.
(2) In a straight line motion acceleration
can revert its direction without its (2) Both assertion and reason are true but
velocity reverting its direction. reason is not the correct explanation of
the assertion.
(3) A body instantaneously at rest may be
accelerated. (3) Assertion is true but reason is false.
(4) All of these (4) Assertion is false but reason is true.
1
,TermExam2023-25TYM(P1)-TE02A
5. A particle is moving along positive x-axis 11. During circular motion of a body with uniform
with constant speed, then speed
(1) Its acceleration is positive (1) Both velocity and acceleration change
(2) Its acceleration is negative (2) Both velocity and acceleration are
(3) Its acceleration is decreasing constant
(4) Its acceleration is zero (3) Velocity is constant but acceleration
changes
(4) Acceleration is constant but velocity
6. A bullet is stopped by a plank, inserting changes
through a distance of 10 m. If the velocity of
bullet is doubled then what is the distance
travelled by the bullet inside the plank 12. Two balls A and B are moving with velocity
before it stops. Assume uniform retardation ˆ ˆ
( i + j) m/s and
by plank to the bullet in both the cases
(1) 10 m ˆ ˆ
(4 i − 3 j ) m/s respectively. Then the
(2) 20 m
magnitude of relative velocity of ball B w.r.t.
(3) 30 m ball A is
(4) 40 m (1) 3 m/s
(2) 4 m/s
−−
7. A particle starts from position x = 0 at time t = (3) √41 m/s
0 with velocity v = (t2 + 4t) along the x-axis.
(4) 5 m/s
The magnitude of average acceleration
during the time interval t = 1 s to t = 2 s is
(where v is in m/s and t in s) 13. A particle starts from rest and moves along a
(1) 8 ms–2 straight line with constant acceleration. The
variation of velocity v with displacement S is
(2) 7 ms–2 correctly shown by the graph
(3) 6 ms–2 (1)
(4) Zero
8. A particle is moving along x-axis with initial
velocity 8 m/s. If acceleration of the particle
is 1.5 m s–2 along y-axis, then speed of the
particle at the end of 4 s is
(2)
(1) 10 m/s
(2) 6 m/s
(3) −−−
√111 m/s
(4) −−−
√110 m/s
9. The position of particle change with time as
(3)
y = 3t2 . The instantaneous speed at 2 s is
(1) 4 m/s
(2) 6 m/s
(3) 8 m/s
(4) 12 m/s
10. A car is moving on a straight road covers (4)
one third of the total distance with speed 25
km/h and rest with speed of 50 km/h. The
average speed of the car is
(1) 40 km/h
(2) 20 km/h
(3) 37.5 km/h
(4) 42.5 km/h
2
, TermExam2023-25TYM(P1)-TE02A
14. A car starts its journey from the origin with a 17. In any realistic Condition (v-t) and (a-t) graph
velocity of ˆ
20 i m/s and moves in x-y plane can not have sharp kinks at some points this
2
implies that
with acceleration of (2ˆ ˆ
i + 4t j ) m/s . Then
(1) Only acceleration can not change
the speed of car at t = 2 s will be abruptly at an instant but velocity can
be change abruptly
(1) 20 m/s
(2) Only velocity can not change abruptly
(2) 22.5 m/s
at an instant, but acceleration can
(3) 25.3 m/s change abruptly
(4) 28.2 m/s (3) Both velocity and acceleration can
change abruptly at an instant
15. The velocity-time graph of a particle in one (4) Both velocity and acceleration can not
dimensional motion is as shown in figure. change abruptly at an instant changes
are always continuous
18. A ball is thrown vertically upwards with a
velocity of 20 m/s from the top of 160m high
building. The time taken by ball to hit the
ground is (g = 10 m/s2 )
(1) 8 s
(2) 10 s
(3) 12 s
(4) 6 s
Which of the following formulae is correct for
19. A person driving a car with a speed of 72
describing the motion of particle over time
Km/h observe a boy crossing the road at a
interval t1 to t2 is
distance of 100 m from car. Driver apply the
(1) vt
2
= vt
1
+ a ( t2 − t1 ) brake and retard the car with a retardation of
(2) Xt = Xt + vt ( t2 − t1 ) +
1
a ( t2 − t1 )
2 5 m/s2 and just able to avoid the accident.
2 1 1
2 The reaction time of driver is
(3) Xt
2
−Xt
1
(1) 2.0 s
v
average = t2 −t1
(2) 2.4 s
(4) Xt = Xt +v
average ( t2 − t1 )
2 1
(3) 3.0 s
2
+
1
a
average ( t2 − t1 )
(4) 2.8 s
2
16. Position-time(t) graph of a particle moving 20. The position of a particle at any time t in a
along a straight line is shown in the figure. plane is given by r ⃗ = (3t
2^ ^
i + j) m , then
The average speed of particle in time
interval 0 to 10 s is the velocity of the particle at t = 2 s is
(1) (12^i )m/s
(2) ^ ^
(12 i + 2 j )m/s
(3) ^ ^
(6 i + 2 j )m/s
(4) ^ ^
(12 i + j )m/s
21. The velocity (in ms–1 ) of an object changes
from v1⃗ = (^ ^ ⃗ = (2^
i + j ) to v2
^
i − 2 j ) in 2 s.
The magnitude of average acceleration is
(1) 2 ms–2
(2) 5 ms–2
(1) 3 m/s (3) 1 ms–2
(2) 1.6 m/s (4) √10
ms
−2
2
(3) 1.4 m/s
(4) 2.3 m/s
3
Corporate Office : Aakash Tower, 8, Pusa Road, New Delhi-110005,
Ph.011-47623456
MM : 720 Term Exam-2023-25_TYM(P1)-TE02A Time : 200 Min.
Topics Covered:
Physics : Motion in a Straight Line, Motion in a Plane
Chemistry : Structure of Atom, Classification of Elements and Periodicity in Properties
Botany : The Living World, Biological Classification
Zoology : Digestion & Absorption, Breathing & Exchange of Gases
General Instructions :
1. There are two sections in each subject, i.e. Section-A & Section-B. You have to attempt all 35 questions from
Section-A & only 10 questions from Section-B out of 15.
2. Each question carries +4 marks. For every wrong response, –1 mark shall be deducted from the total score.
Unanswered/unattempted questions will be given no marks.
3. Use blue/black ballpoint pen only to darken the appropriate circle.
4. Mark should be dark and completely fill the circle.
5. Dark only one circle for each entry.
6. Dark the circle in the space provided only.
7. Rough work must not be done on the Answer sheet and do not use white fluid or any other rubbing material on the
Answer sheet.
PHYSICS
SECTION-A
1. Position of a particle varies with time as x = 3. The magnitude of velocity of a body is given
t3 – 3t2 + 4. What will be its speed at the by v = |t – 6| m/s, then average speed of
moment when its acceleration is zero? (x is body between 2 s to 6 s will be
in metre and t is in seconds) (1) 2 m/s
(1) Zero (2) 6 m/s
(2) 7 m/s (3) 3.5 m/s
(3) 3 m/s (4) 4.5 m/s
(4) 6 m/s
4. A : Average velocity is a vector quantity.
2. Choose the correct statement R : Average speed ≥ |average velocity|.
(1) In a straight line motion a particle can (1) Both assertion and reason are true and
speed up with decreasing acceleration. the reason is the correct explanation of
the assertion.
(2) In a straight line motion acceleration
can revert its direction without its (2) Both assertion and reason are true but
velocity reverting its direction. reason is not the correct explanation of
the assertion.
(3) A body instantaneously at rest may be
accelerated. (3) Assertion is true but reason is false.
(4) All of these (4) Assertion is false but reason is true.
1
,TermExam2023-25TYM(P1)-TE02A
5. A particle is moving along positive x-axis 11. During circular motion of a body with uniform
with constant speed, then speed
(1) Its acceleration is positive (1) Both velocity and acceleration change
(2) Its acceleration is negative (2) Both velocity and acceleration are
(3) Its acceleration is decreasing constant
(4) Its acceleration is zero (3) Velocity is constant but acceleration
changes
(4) Acceleration is constant but velocity
6. A bullet is stopped by a plank, inserting changes
through a distance of 10 m. If the velocity of
bullet is doubled then what is the distance
travelled by the bullet inside the plank 12. Two balls A and B are moving with velocity
before it stops. Assume uniform retardation ˆ ˆ
( i + j) m/s and
by plank to the bullet in both the cases
(1) 10 m ˆ ˆ
(4 i − 3 j ) m/s respectively. Then the
(2) 20 m
magnitude of relative velocity of ball B w.r.t.
(3) 30 m ball A is
(4) 40 m (1) 3 m/s
(2) 4 m/s
−−
7. A particle starts from position x = 0 at time t = (3) √41 m/s
0 with velocity v = (t2 + 4t) along the x-axis.
(4) 5 m/s
The magnitude of average acceleration
during the time interval t = 1 s to t = 2 s is
(where v is in m/s and t in s) 13. A particle starts from rest and moves along a
(1) 8 ms–2 straight line with constant acceleration. The
variation of velocity v with displacement S is
(2) 7 ms–2 correctly shown by the graph
(3) 6 ms–2 (1)
(4) Zero
8. A particle is moving along x-axis with initial
velocity 8 m/s. If acceleration of the particle
is 1.5 m s–2 along y-axis, then speed of the
particle at the end of 4 s is
(2)
(1) 10 m/s
(2) 6 m/s
(3) −−−
√111 m/s
(4) −−−
√110 m/s
9. The position of particle change with time as
(3)
y = 3t2 . The instantaneous speed at 2 s is
(1) 4 m/s
(2) 6 m/s
(3) 8 m/s
(4) 12 m/s
10. A car is moving on a straight road covers (4)
one third of the total distance with speed 25
km/h and rest with speed of 50 km/h. The
average speed of the car is
(1) 40 km/h
(2) 20 km/h
(3) 37.5 km/h
(4) 42.5 km/h
2
, TermExam2023-25TYM(P1)-TE02A
14. A car starts its journey from the origin with a 17. In any realistic Condition (v-t) and (a-t) graph
velocity of ˆ
20 i m/s and moves in x-y plane can not have sharp kinks at some points this
2
implies that
with acceleration of (2ˆ ˆ
i + 4t j ) m/s . Then
(1) Only acceleration can not change
the speed of car at t = 2 s will be abruptly at an instant but velocity can
be change abruptly
(1) 20 m/s
(2) Only velocity can not change abruptly
(2) 22.5 m/s
at an instant, but acceleration can
(3) 25.3 m/s change abruptly
(4) 28.2 m/s (3) Both velocity and acceleration can
change abruptly at an instant
15. The velocity-time graph of a particle in one (4) Both velocity and acceleration can not
dimensional motion is as shown in figure. change abruptly at an instant changes
are always continuous
18. A ball is thrown vertically upwards with a
velocity of 20 m/s from the top of 160m high
building. The time taken by ball to hit the
ground is (g = 10 m/s2 )
(1) 8 s
(2) 10 s
(3) 12 s
(4) 6 s
Which of the following formulae is correct for
19. A person driving a car with a speed of 72
describing the motion of particle over time
Km/h observe a boy crossing the road at a
interval t1 to t2 is
distance of 100 m from car. Driver apply the
(1) vt
2
= vt
1
+ a ( t2 − t1 ) brake and retard the car with a retardation of
(2) Xt = Xt + vt ( t2 − t1 ) +
1
a ( t2 − t1 )
2 5 m/s2 and just able to avoid the accident.
2 1 1
2 The reaction time of driver is
(3) Xt
2
−Xt
1
(1) 2.0 s
v
average = t2 −t1
(2) 2.4 s
(4) Xt = Xt +v
average ( t2 − t1 )
2 1
(3) 3.0 s
2
+
1
a
average ( t2 − t1 )
(4) 2.8 s
2
16. Position-time(t) graph of a particle moving 20. The position of a particle at any time t in a
along a straight line is shown in the figure. plane is given by r ⃗ = (3t
2^ ^
i + j) m , then
The average speed of particle in time
interval 0 to 10 s is the velocity of the particle at t = 2 s is
(1) (12^i )m/s
(2) ^ ^
(12 i + 2 j )m/s
(3) ^ ^
(6 i + 2 j )m/s
(4) ^ ^
(12 i + j )m/s
21. The velocity (in ms–1 ) of an object changes
from v1⃗ = (^ ^ ⃗ = (2^
i + j ) to v2
^
i − 2 j ) in 2 s.
The magnitude of average acceleration is
(1) 2 ms–2
(2) 5 ms–2
(1) 3 m/s (3) 1 ms–2
(2) 1.6 m/s (4) √10
ms
−2
2
(3) 1.4 m/s
(4) 2.3 m/s
3
