Tamil Nadu (English Medium) Plus 1 Computer Science Study Materials, Online Learning, Question Papers, Classnotes, Practice Test, MCQ | Smartindia Educational Program : www.smartindia.net.in


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Question-1
The water drops fall at regular intervals from a tap 5 m above the ground. The third drop is leaving the tap at an instant when the first drop touches the ground. How far above the ground is the second drop at that instant?( Take g = 10m/s²)

(A) 1.25 m	(B)2.50 m
(C)3.75 m	(D)5.00 m

Question-2
If a car at rest accelerates uniformly to a speed of 144 km/h in 20 s, it covers a distance of

(A) 2880 m	(B)1440 m
(C)400 m	(D)20 m

Question-3
The maximum range of a gun of horizontal terrain is 16 km. If g = 10 ms^-2 , then muzzle velocity of a shell must be

(A) 160 ms^-1	(B) 200√2 ms^-1
(C) 400 ms^-1	(D) 800 ms^-1

Question-4
A body is thrown vertically upwards from the ground. It reaches a maximum height of 20 m in 5s. After what time it will reach the ground from its maximum height position?

(A) 2.5 s	(B)5 s
(C)10 s	(D)25 s

Question-5
The velocity of a body depends upon time according to the equation v = 20 + 0.lt². The body is undergoing

(A) uniform acceleration	(B) uniform retardation
(C) non-uniform acceleration	(D) zero acceleration

Question-6
The displacement of a body is given to be proportional to the cube of time elapsed. The magnitude of the acceleration of the body is

(A) increasing with time	(B)decreasing with time
(C)constant but not zero	(D)zero

Question-7
When a body moves with a constant speed along a circle

(A) its velocity remains constant	(B) no force acts on it
(C) no work is done on it	(D) no acceleration is produced it

Question-8
A car is moving along a straight road with a uniform acceleration. It passes through two points P and Q separated by a distance with velocity 30 km/h and 40 km/h respectively. The velocity of the car midway between P and Q is

(A) 33.3 km/h	(B) 20 √2 km/h
(C) 25 √2 km/h	(D) 0.35 km/h

Question-9
A train of 150 m length is going towards north direction at a speed of 10m/s. A parrot flies at the speed of 5 m/s towards south direction parallel to the railways track.The time taken by the parrot to cross the train is

(A) 12 s	(B)8 s
(C)15 s	(D)10 s

Question-10
Three different objects of masses m₁, m₂ and m₃ are allowed to fall from rest and from the same point O along three different friction less paths. The speeds of the three objects on reaching the ground will be in the ratio of

(A) m₁: m₂ : m₃	(B) m₁ : 2m₂: 3m₃
(C) 1 : 1 : 1	(D)

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Plus 1 Computer Science

Tamil Nadu (English Medium)

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