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NCERT BOOSTER TEST SERIES
(For NEET-2021)
Test – 01
Topics covered in various subjects:
Physics: Units and Measurements, Motion in a straight line, Motion in a Plane
Chemistry: Some basic concepts of chemistry, Structure of Atom, Classification of Elements and Periodicity
in Properties
Botany : The Living World, Biological Classification, Plant Kingdom, Morphology of Flowering Plant :
Introduction, The Root - Regions of Root, Modification of Root, The Stem - Modification of Stem,
The Leaf - Venation, Types of Leaves, Phyllotaxy, Modification of Leaves, The Inflorescence, The
Flower
Zoology : Structural Organisation in Animals-Animal tissues, Biomolecules, Digestion and absorption,
Breathing and Exchange of gases
Choose the correct answer: 4. Least count error belongs to the category of
1. If the size of nucleus is in the range of 10–15 m to (1) Random errors only
10–14 m is scaled up to the tip of sharp pin. (2) Systematic errors only
(Assume tip of pin to be in the range of 10–6 m to (3) systematic error and random error both
10–5). Roughly the size of atom is (4) Neither systematic error nor random error
(1) 0.1 m (2) 1 m 5. A student measures the period of oscillation of a
(3) 0.01 m (4) 10 m simple pendulum in successive measurements,
the reading turn out to be 1.98 s, 1.99 s, 2.06 s,
2. Choose the correct option 2.08 s and 1.95 s. A more accurate way to write
(1) A most precise measurement, will necessarily the measurement with error is
be most accurate (1) 2.0 ± 0.1 s (2) 2.03 + 0.06 s
(2) A most precise measurement may be most (3) 2.0 + 0.06 s (4) 2.03 ± 0.1 s
accurate 6. Each side of a cube is measured to be 6.372 m.
(3) A most accurate measurement will The total surface area of cube with appropriate
necessarily will be most precise significant figures is
(1) 243.614304 m2 (2) 243.6 m2
(4) A most precise measurement will be less
(3) 2 × 102 m (4) 2.5 X 102 m2
accurate
7. Choose the correct statement
3. In cesium clock 1 second is the time in which
(1) A dimensionally correct equation need not
Cesium – 133 atom vibrate between two hyperfine
to be an actually correct equation
level
(2) A dimensionally correct equation may be an
(1) 9,292,631,770 times actually correct equation.
(2) 9,193,631,770 times (3) A dimensionally incorrect equation may be
(3) 9, 192, 631, 770 times. correct
(4) 9, 192, 631, 720 times. (4) Both (1) and (2)
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,NBTS-01 CoE-XII
8. A famous relation in physics with many printing (3) Observe the things and act
errors relates the moving mass ‘m’ with rest mass (4) observe the things, think and act.
for an object moving with speed V is written as
14. A person driving a car with a speed of 72 Km/h
η0 2 observe a boy crossing the road at a distance of
m=
b
1/2
100 m from car. Driver apply the brake and retard
1 – c 2 the car with a retardation of 5 m/s2 and just able to
avoid the accident. The reaction time of driver is
Dimensional formula of η0 and b are (1) 2.0 s (2) 2.4 s
respectively. (c is speed of light) (3) 3.0 s (4) 2.8 s
(1) [M], [LT–1] (2) [M], [L2T– 2] 15. In any realistic Condition (v-t) and (a-t) graph can
(3) [M½], [LT–1] (4) [M½], [L2T– 2]. not have sharp kinks at some points this implies
9. The numerical value of gravitational Constant G = that
N × m2 (1) Only acceleration can not change abruptly at
6.67x10-11 . In a new system of units in an instant but velocity can be change abruptly
Kg2
1 (2) only velocity can not change abruptly at an
which unit of mass is kg, unit of length is 10 instant, but acceleration can change abruptly
40
m and unit of time is 20 s will be (3) Both velocity and acceleration can change
abruptly at an instant
(1) 6:67 × 10 – 11 (2) 6.67 × 10– 8
(4) Both velocity and acceleration can not change
(3) 6.67 X10– 13 (4) 13.34 × 10– 8 abruptly at an instant changes are always
10. Choose the correct statement continuous
(1) Area under acceleration time graph gives the 16. A ball is thrown vertically upwards with a velocity
velocity of body of 20 m/s from the top of 160m high building. The
(2) Area under acceleration time graph gives time taken by ball to hit the ground is (g=10 m/s2)
speed of body (1) 8 s (2) 10 s
(3) Area under acceleration time graph gives (3) 12s (4) 6 s
change in speed of body 17. The position time graph of two objects A and B are
(4) Area under acceleration time graph gives as shown in graph, from graph we can conclude
change in velocity of body that
11. Choose the correct statement for one dimensional
motion
(1) With constant speed in an interval may have
non zero acceleration in that interval
(2) With negative value of acceleration speed
must decrease
(3) With positive value of acceleration speed must
increase
(4) With negative value of acceleration speed
(1) Both A and B are moving in same direction.
may increase
(2) Object A starts motion earlier than B
12. A drunkard walking in a narrow lane takes 5 step
forward & 4 steps backward and then stay for 2 s (3) Both A and B are moving in opposite direction
and repeat the same process. Each step is 1 m (4) Object B starts motion earlier than A.
long and require 1 s . The time taken by drunkard
to fall in a pit 10 m away from start is 18. In which of the following cases an object can be
considered as point object
(1) 45 s (2) 60 s
(1) Length of train in comparison to plate form
(3) 75 s (4) 65 s
(2) Length of engine of train in comparison to
13. The reaction time is the time interval in which a length of train.
person.
(3) A spinning cricket ball to that turns sharply on
(1) Observe the things
hitting the ground
(2) Think about the observations
(4) Size of nucleus in comparison to size of atom
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, NBTS-01 CoE-XII
19. Two vectors are said to be equal, if on shifting one (3) Due to change in both magnitude and
of the vector parallel to itself direction of velocity
(1) Tail of one vector Coincide with other (4) Neither due to change in magnitude of velocity
(2) Head of one vector coincide with other. nor due to change indirection
26. In circular motion the direction of angular velocity is
(3) Both head and tail of one vector Coincide with
other (1) In the plane of circle
(4) Neither head nor tail of one vector Coincide (2) Perpendicular to plane of circle
with other
(3) In the direction of velocity
20. A null vector has
(4) In the direction of acceleration
(1) Zero magnitude and specified direction 27. The speed-time graph of a particle moving along
(2) Zero magnitude and arbitrary direction a fixed direction is as shown in figure. The average
speed of the particle between 5 s to 15 s is
(3) Zero magnitude and no direction
(4) Non zero magnitude and arbitrary direction
21. To a person moving with a speed of 5 m/s towards
east rain appears to be falling vertically downward
with a speed of 5 3 m/s. The actual velocity of
rain is
(1) 10 m/s at 30° with vertical
(2) 20 m/s at 30° with vertical (1) 11.25 m/s (2) 6 m/s
(3) 10 m/s at 60° with vertical (3) 5 m/s (4) 7.5 m/s
(4) 20 m/s at 60° with vertical 28. The velocity-time graph of a particle in one
dimensional motion is as shown in figure.
22. A vector can be resolved
(1) Only in two components
(2) Only in three components
(3) In any number of components
(4) Either two or three components
23. The magnitude of components of vector
(1) Must be less than magnitude of vector Which of the following formulae is correct for
(2) Must be equal to magnitude of vector describing the motion of particle over time interval
t1 to t2 is
(3) May be greater than magnitude of vector
1 2
(4) All the components necessarily less than (1) X t2 = X t1 + v t1 (t2 − t1) + a ( t2 – t1 )
magnitude of vector 2
24. A motorboat is racing towards north at a speed of t2 v t1 + a (t 2 – t1)
(2) v =
10 m/s, wind start to blow with a speed of 10 m/s
at 60° east of north. The resultant velocity of boat 1 2
(3) X t2 = X t1 + v average (t2 − t1) + a average(t2 − t1 )
is 2
(1) 10 3 m/s at 30° east of north X t2 − X t1
(4) v average =
t2 − t1
(2) 10 3 m/s at 30° north of east
(3) 20 m/s at 30° west of north 29. A boy standing on a lift moving with speed 10 m/s.
The lift is open from top. The boy throws the ball
(4) 10 3 m/s at 30° west of north with maximum speed of 24.5 m/s in upward
direction. In how much time the ball returns to the
25. In circular motion. The centripetal acceleration is hand of boy? (g = 9.8 m/s2)
(1) Due to change in magnitude of velocity only (1) 10 s (2) 5 s
(2) Due to change in direction of velocity only (3) 7.5 s (4) 6 s
[Page 3]
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