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KVPY Exam Pattern, KVPY Questions with Answers Page 25

(#M40027083) KVPY QUESTION General Ability Test Keep an EYE

A 750 W motor drivers a pump which lifts 300 litres of water per minute to a height of 6 meters. The efficiency of the motor is nearly (take acceleration due to gravity to be 10 m/s2)
option
(A) 30%
(B) 40%
(C) 50%
(D) 20%

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(#M40027082) KVPY QUESTION General Ability Test Keep an EYE

A cylindrical copper rod has length L and resistance R. If it is melted and formed into another rod of length 2L, the resistance will be
option
(A) R
(B) 2R
(C) 4R
(D) 8R

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(#M40027081) KVPY QUESTION General Ability Test Keep an EYE

A convex lens is used to form an image of an object on a screen. If the upper half of the lens is blackened so that it becomes opaque, then
option
(A) only half of the image will be visible
(B) the image position shifts towards the lens
(C) the image position shifts away from the lens
(D) the brightness of the image reduces

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(#M40027080) KVPY QUESTION General Ability Test Keep an EYE

Light enters an isosceles right triangular prism at normal incidence through face AB and undergoes total internal reflection at face BC as shown below

The minimum value of the refractive index of the prism is close to

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(#M40027079) KVPY QUESTION General Ability Test Keep an EYE

A girl standing at point P on a beach wishes to reach a point Q in the sea as quickly as possible. She can run at 6 km h1 on the beach and swim at 4 km h1 in the sea. She should take the path

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(#M40027078) KVPY QUESTION General Ability Test Keep an EYE

We sit in the room with windows open. Then
(A) air pressure on the floor of the room equals the atmospheric pressure but the air pressure on the ceiling is
negligible
(B) air pressure is nearly the same on the floor, the walls and the ceiling
(C) air pressure on the floor equals the weight of the air column inside the room (from floor to ceiling) per
unit area
(D) air pressure on the walls is zero since the weight of air acts downward

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(#M40027077) KVPY QUESTION General Ability Test Keep an EYE

The following three objects (1) a metal tray, (2) a block of wood, and (3) a woolen cap are left in a closed room overnight. Next day the temperature of each is recorded as T1, T2 and T3 respectively. The likely situation is
option
(A) T1 = T2 = T3
(B) T3 > T2 > T1
(C) T3 = T2 > T1
(D) T3 > T2 = T1

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(#M40027076) KVPY QUESTION Physical Ability Test Keep an EYE

On a horizontal frictionless frozen lake, a girl (36 kg) and a box (9 kg) are connected to each other by means of a rope. Initially they are 20 m apart. The girl exerts a horizontal force on the box, pulling it towards her. How far has the girl traveled when she meets the box >
(A) 10 m
(B) Since there is no friction, the girl will not move
(C) 16 m
(D) 4m

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(#M40027075) KVPY QUESTION Physical Ability Test Keep an EYE

A juggler tosses a ball up in the air with initial speed u. At the instant it reaches its maximum height H, he tosses up a second ball with the same initial speed. The two balls will collide at a height

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(#M40027074) KVPY QUESTION Mental Ability Keep an EYE

There are 30 questions in a multiple choice test. A student gets 1 mark for each unattempted question, 0 mark for each wrong answer and 4 marks for each corrent answer. A student answered x question correctly and scored 60. Then the number of possible value of x is
option
(A) 15
(B) 10
(C) 6
(D) 5

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