NEET RANCHI

बुद्धा साइन्स एंड टेक्निकल इंस्टीट्यूट
Buddha Science & Technical Institute
Kokar, Ranchi, Jharkhand
JOIN BSTI FOR : IIT-JEE / NEET With BHARAT SIR
PHYSICS : IMPORTANT QUESTION FOR IIT-JEE / NEET
Q. The magnitude of the acceleration of a moving object is equal to the
A. Gradient of a displacement-time graph
B. Gradient of a velocity-time graph
C. Area below a force-time graph
D. Area below a displacement-time graph
ANS : B
V.V.I.
QUESTION

Q. If air resistance is taken into account in the study of projectile
motion, which of the following will show an increase ?
A. Time of flight
B. Horizontal range
C. Maximum height
D. Speed at which projectile strikes the ground
ANS : A
V.V.I.
QUESTION

Q. The resultant of two forces 3P and 2P is R. If the first force is
doubled, then the resultant is also doubled. The angle between the
two forces is
A. 120˚ B. 60˚
C. 180˚ D. 90˚
ANS : A
V.V.I.
QUESTION

Q. The vector of two forces is perpendicular to their vector differences.
In that case, the forces
A. Are equal to each other
B. Are equal to each other in magnitude
C. Are not equal to each other in magnitude
D. Cannot be predicted
ANS : B
V.V.I.
QUESTION

Q. For angles of projection of a projectile at angles (45˚ - θ) and (45˚ +
θ), the horizontal ranges described by the projectile are in the ratio
of
A. 1 : 1 B. 2 : 3
C. 1 : 2 D. 2 : 1
ANS : A
V.V.I.
QUESTION

Q. For a projectile, (range)2 is 48 times of (maximum height)2 . What is
the angle of projection ?
A. 60˚
B. 30˚
C. 60˚
D. 75˚
ANS : B
V.V.I.
QUESTION

Q. A body is projected at an angle of projection θ with kinetic energy
E. Neglecting air friction, the kinetic energy at the highest point is :
A. Zero B. E
C. E cos θ D. E cos2 θ
ANS : D
V.V.I.
QUESTION

Q. The angle for which maximum height and horizontal range are
same for a projectile is nearly
A. 32˚
B. 48˚
C. 76˚
D. 84˚
ANS : C
V.V.I.
QUESTION

Q. If acceleration of a particle at any time is given by a = 2t + 5,
calculate the velocity after 5 s, if it starts from rest.
A. 50 m s-1
B. 25 m s-1
C. 100 m s-1
D. 75 m s-1
ANS : A
V.V.I.
QUESTION

Q. A particle moves in a straight line with a constant acceleration. It
changes its velocity from 10 m s-1 20 m s-1 while passing through a
distance 135 m in t second. The value of t is
A. 12 B. 9
C. 10 D. 1.8
ANS : B
V.V.I.
QUESTION

Q. A parachutist after bailing out falls 50 m without friction. When
parachute opens, it decelerates at 2 m s-2 . He reaches the ground
with a speed of 3 m s-1 . At what height, did he bail out ?
A. 293 m B. 111 m
C. 91 m D. 182 m
ANS : A
V.V.I.
QUESTION

Q. The maximum height attained by a projectile is increased by 5%.
Keeping the angle of projection constant, what is the percentage
increase in horizontal range ?
A. 5% B. 10%
C. 15% D. 20 %
ANS : A
V.V.I.
QUESTION

Q. Police is chasing the thief 50 m ahead. In 10 s, distance between
them reduces by 6 m. What is distance between them in 25 s ?
A. 10 m
B. 25 m
C. 35 m
D. 20 m
ANS : C
V.V.I.
QUESTION

Q. The distance travelled by an object along a straight line in time t is
given by s = 3 – 4t + 5t2 . The initial velocity of the object is
A. 3 unit
B. -3 unit
C. 4 unit
D. -4 unit
ANS : D
V.V.I.
QUESTION

Q. The maximum range of a projectile is 100 m. The maximum height
reached by it is
A. 100 m
B. 25 m
C. 200 m
D. 75 m
ANS : B
V.V.I.
QUESTION

Q. A particle moves a distance x in time t according to equation x = (t
+ 5)-1 The acceleration of particle is proportional to
A. (velocity)3/2
B. (distance)2
C. (distance)-2
D. (velocity)2/3
ANS : A
V.V.I.
QUESTION

Q. The speed of a projectile at its maximum height is half of its initial
speed. The angle of projection is
A. 60˚
B. 15˚
C. 30˚
D. 45˚
ANS : A
V.V.I.
QUESTION

Q. The acceleration of a particle (a) is related to its velocity (v) by a = -
2v. What is the nature of velocity-time curve ?
A. Linearly increasing
B. Exponentially decreasing
C. Exponentially increasing
D. Linearly decreasing
ANS : B
V.V.I.
QUESTION

Q. Stopping distance of a moving vehicle is directly proportional to
A. Square of the initial velocity
B. Square of the initial acceleration
C. The initial velocity
D. The initial acceleration
ANS : A
V.V.I.
QUESTION

Q. A motorboat covers a given distance in 6 hour moving downstream
on a river. It covers the same distance in 10 hour moving upstream.
The time it taken to cover the same distance in still water is
A. 9 hour B. 7.5 hour
C. 6.5 hour D. 8 hour
ANS : B
V.V.I.
QUESTION

Q. A ball is projected horizontally with a velocity of 5 m s-1 from the
top of a building 19.6 m high. How long will the ball take to hit the
ground ?
A. √2 s B. 2 s
C. √3 s D. 3 s
ANS : B
V.V.I.
QUESTION

Q. Two forces in the ratio 1 : 2 act simultaneously on a particle. The
resultant of these forces is three times the first force. The angle
between them is
A. 0˚ B. 60˚
C. 90˚ D. 45˚
ANS : A
V.V.I.
QUESTION

Q. A body moves with initial velocity 10 m s-1 . If it covers a distance
of 20 m in 2 s, then acceleration of the body is
A. Zero
B. 10 m s-2
C. 5 m s-2
D. 2 m s-2
ANS : A
V.V.I.
QUESTION

Q. A boy can throw a stone up to a maximum height of 10 m. The
maximum horizontal distance that the boy can throw the same
stone up to will be
A. 10 m B. 10 √2 m
C. 20 m D. 20 √2 m
ANS : C
V.V.I.
QUESTION

Q. If a particle moves with an acceleration, then which of the following
can remain constant ?
A. Both speed and velocity
B. Neither speed nor velocity
C. Only the velocity
D. Only the speed
ANS : D
V.V.I.
QUESTION

Q. Two cars started moving with initial velocities v and 2v. For the
same deceleration, their respective stopping distances are in the
ratio
A. 1 : 1 B. 1 : 2
C. 1 : 4 D. 2 : 1
ANS : C
V.V.I.
QUESTION

Q. In the entire path of a projectile, the quantity that remains
unchanged is
A. Vertical component of velocity
B. Horizontal component of velocity
C. Kinetic energy
D. Potential energy
ANS : B
V.V.I.
QUESTION

Q. The horizontal range of a projectile is maximum when the angle of
projection is
A. 0˚
B. 30˚
C. 45˚
D. 60˚
ANS : C
V.V.I.
QUESTION

Q. The graph between displacement and time for a particle moving
with uniform acceleration is a
A. Straight line with a positive slope
B. Parabola
C. Ellipse
D. Straight line parallel to time axis
ANS : B
V.V.I.
QUESTION

Q. In a uniform circular motion, the angle between the velocity and
acceleration is
A. 0˚
B. 45˚
C. 60˚
D. 90˚
ANS : D
V.V.I.
QUESTION

Q. A car moving on a straight road covers 1 / 3 of the distance with 25
km h-1 and rest with 75 km h-1 . The average speed is
A. 25 km h-1
B. 45 km h-1
C. 55 km h-1
D. 75 km h-1
ANS : B
V.V.I.
QUESTION

Q. The distance at which average radius of the Earth orbit subtends
an angle of 1 arc second is
A. Parsec
B. Astronomical unit
C. Light year
D. Unified atomic unit
ANS : A
V.V.I.
QUESTION

Q. A car moves from A and B with a speed of 30 km h-1 and from B
and A with a speed of 20 km h-1 . What is the average speed of
the car?
A. 50 km h-1 B. 25 km h-1
C. 10 km h-1 D. 24 km h-1
ANS : D
V.V.I.
QUESTION

Q. The ratio of distances traversed in successive intervals of time when
a body falls freely under gravity from certain height is
A. 1 : 2 : 3
B. 1 : 5 : 9
C. 1 : 3 : 5
D. 1 : 4 : 9
ANS : C
V.V.I.
QUESTION

Q. The co-ordinates of a particle moving in x-y plane at any instant of
time t are x = 4t2 ; y = 3t2 . The speed of the particle at that instant
is
A. 10t B. 5t
C. 3t D. 2t
ANS : A
V.V.I.
QUESTION

Q. The acceleration of a moving body is found from the
A. Area under velocity-time graph
B. Area under displacement-time graph
C. Slope of distance-time graph
D. Slope of velocity-time graph
ANS : D
V.V.I.
QUESTION

Q. A ball thrown vertically upwards after reaching a maximum height
h, returns to the starting point after a time of 10 s. Its displacement
is
A. H B. 2h
C. 10h D. 20h
ANS : C
V.V.I.
QUESTION

Q. If the angles of projection of a projectile with same initial velocity
exceed or fall short of 45˚ by equal amounts a, then the ratio of
horizontal ranges is
A. 1 : 2 B. 1 : 3
C. 1 : 4 D. 1 : 1
ANS : D
V.V.I.
QUESTION

Q. A body at rest starts sliding from top of a smooth inclined plane
and requires 4 second to reach bottom. How much time does it take,
starting from rest at top, to cover one-fourth of a distance ?
A. 1 second B. 2 second
C. 3 second D. 4 second
ANS : B
V.V.I.
QUESTION

Q. The range of a projectile is R when the angle of projection is 40˚.
For the same velocity of projection and range, the other possible
angle of projection is
A. 45˚ B. 50˚
C 60˚ D. 40˚
ANS : B
V.V.I.
QUESTION

NEET RANCHI

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