Kerala (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 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-2
One train A 120 m long is moving in a direction with a speed of 20 m/s. Another train B 130 m long is moving with a speed of 30 m/s in the opposite direction. The train B crosses the train A in a time

(A) 5 s	(B) 36 s
(C) 38 s	(D) 10 s

Question-3
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-4
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-5
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-6
A ball P is dropped vertically and another ball Q is thrown horizontally from the same height and at the same time. If air resistance is neglected, then,

(A) Ball P reaches the ground first	(B) Ball Q reaches the ground first
(C) Both the balls reach the ground at the same time	(D) Respective masses of the two balls will decide the time

Question-7
A car moves a distance of 200 m. It covers the first-half of the distance at speed v. The average speed is 48 km/h. Find the value of v.

(A) 56 km/h	(B) 60 km/h
(C) 50 km/h	(D) 48 km/h

Question-8
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)

Question-9
A body dropped from top of a tower fall through 40 m during the last two seconds of its fall. The height of tower is (g = 10m/s²)

(A) 60 m	(B) 45 m
(C) 80 m	(D) 50 m

Question-10
An athlete completes one round of a circular track of radius r in 40 seconds. What will be his displacement at the end of 2 min and 20 seconds?

(A) zero	(B) 2 R
(C) 2 π R	(D) 7 π R

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Plus 1 Computer Science

Kerala (English Medium)

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