Practice Pcm

8/2/2019 Practice Pcm

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FIITJEE Ltd. FIITJEE House, 29-A, Kalu Sarai, Sarvapriya Vihar, New Delhi -1100 16, Ph : 46106000, 26515949 Fax : 26513942

FIITJEE ADMISSIONTEST

Class-X (going to class XI)

Physics, Chemistry & Maths

Time: 3 Hours Maximum Marks: 270

Instructions:

1. Attempt ALL the questions.

2. Answers have to be marked on the OMR sheet.

3. The Question Paper contains blank spaces for your rough work. No additional sheets will be provided for rough work.

4. Blank papers, clip boards, log tables, slide rule, calculator, cellular phones, pagers and electronic devices, in any form, are not allowed.

5. Write your Name and Registration No. in the space provided at the bottom of this sheet.

6. The questions paper consists of 3 parts:

Part -1 .. Physics ( 30 questions)

Part -2 .. Chemistry ( 30 questions)

Part -3 .. Mathematics ( 30 questions)

7. Each question carries +3 marks for correct answer and 1 mark for wrong answer.

Name of the Candidate :

Registration Number :


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AT-2011-12- X STU.-PCM(PRACTICE )-2

P P h h y y s s ii c c s s PART 1

Straight Objective TypeThis section contains 30 multiple choice questions numbered 1 to 30. Each question has 4 choices (A), (B),

(C) and (D), out of which ONLY ONE is correct.

1. A light beam AB when incident on a prism, passed through pathBCD. Now, if the light is incident along DC, then(A) it will pass through CBA.(B) it will be less deflected.(C) it will be more deflected(D) cant be predicted anything.

B C

D

2. The point of the lens through which the light goes undeviated after refraction is known as(A) Focus (B) Locus

(C) Centre of curvature (D) Optical centre.

3. An isosceles prism of angle 120 oC has a refractive index 1.44. Two parallelmonochromatic rays enter the prism parallel to each other in air as shown. Therays emerge from the opposite faces(A) are parallel to each other(B) are diverging(C) make an angle 2 [sin 1(0.72) 30 ] with each other(D) make an angle 2 sin 1(0.72) with each other

120

4. A pond is 5 m deep. A person standing on its bank will find/observe its depth, as(A) less than 5 m (B) equal to 5 m

(C) greater than 5 m (D) cant be predictedSpace for Rough Work


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5. The size of the image formed by a convex mirror of focal length 30 cm is a quarter of the size of a realobject. Then the distance of the object from the mirror is(A) 30 cm (B) 90 cm(C) 120 cm (D) 60 cm

6. Two electric bulbs whose resistances are in the ratio of 1 : 2 are connected in parallel to a constantvoltage source. The powers dissipated in them have the ratio(A) 1 : 2 (B) 1 : 1(C) 2 : 1 (D) 1 : 4

7. Which of following causes the least pollution when burnt?(A) petrol (B) diesel(C) coal (D) natural gas

8. Which of the following mirrors has the widest field of view?(A) convex mirror (B) concave mirror

(C) plane mirror (D) none of these

9. Which of the following colours scatters minimum?(A) violet (B) blue(C) red (D) yellow

10. Find speed of light in water? (Refractive index of water is 4/3)(A) 2 10 8 m/s (B) 3 10 8 m/s(C) 2.25 10 8 m/s (D) 4 10 8 m/s

11. A ray of light travelling in air falls on the surface of a transparent slab at an angle. If the angle of

refraction is 30 , and refractive index of the slab is 3 , find angle of incidence.(A) 45 (B) 30 (C) 60 (D)none of the above

Space for Rough Work


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12. Current is flowing in a ring of radius R in the anti-clockwise direction. An electron ismoving towards the centre of the ring in the downward direction inside the planewith velocity v. Its velocity will(A) increase (B) remain same(C) decrease (D) become zero.

R i O

13. The potential at a point is 20 V. The work done in bringing a charge of 2 C from infinity to this point willbe(A) 10 J (B) 40 J(C) 5 J (D) 20 J

14. You can provide charge to a body by(A) friction. (B) induction.(C) contact. (D) all of the above.

15. An electron is moving in a circle of radius R in a uniform magnetic field.The direction of magnetic field lines is in the downward direction inside theplane. If instantly we change the direction of magnetic field lines in theupward direction out the plane. The electron(A) will start to move in a straight line.(B) will move in a circle of radius R in the same direction.

R e O

B

(C) will move in a circle of radius R but in the anticlockwise direction.(D) will move in the same direction but in a circle of radius greater than R.

16. A positive charged particle placed on a frictionless table by attaching it to a string fixed at one point ofmagnetic field is switched on in the vertical direction, the tension in the string(A) will increase (B) will decrease(C) will remain same (D) may increase or decrease

17. A charged particle is moved along a magnetic field line. The magnetic force on the particle is(A) along its velocity (B) opposite to its velocity(C) perpendicular to its velocity (D) zero



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18. A charge particle is moving in a magnetic field and does not experience any force. The particle ismoving(A) perpendicular to magnetic field(B) along the magnetic field lines(C) on the direction making an angle 60 with magnetic field lines.(D) on the direction making an angle 30 with magnetic field lines.

19. When a particle moves in a circle with a uniform speed(A) its velocity and acceleration are both constant(B) its velocity is constant but acceleration changes(C) its acceleration is constant but velocity changes(D) its velocity and acceleration both change

20. A block of mass M is pulled along a horizontal frictionless surface by a rope of mass m. If a force F isapplied at one end of the rope, the force which the rope exerts on the block is:

(A)Mm

FM+ (B) Mm

Fm+

(C)mM

FM (D) mM

FM

21. In the circuit shown choose the incorrect option:(A) the potential at P is 7.5 V(B) the potential at Q is 1V(C) the potential at R is zero(D) the potential at S is zero

1

Q

RS

P

7.5

0.5 1

20 V10 V

G



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22. The mass of three wires of copper are in the ratio 1 : 3 : 5. And their lengths are in the ratio 5 : 3 : 1 .The ratio of their electrical resistances is(A) 1 : 3 : 5 (B) 5 : 3 : 1(C) 1 : 15 : 125 (D) 125 : 15 : 1

23. The magnitude of momentum of electrons in a straight wire of copper of length 1 meter carrying acurrent of 16 ampere will be(A) 14.56 10 12 kg m sec 1 (B) 29.12 10 12 kg m sec 1 (C) 18.2 10 11 kg m sec 1 (D) 91 10 12 kg m sec 1

24. A wire has a resistance 30 . It is bent in the form of a regularhexagon ABCDEF and the two ends are joined together. Theeffective resistance between the points A and B(A) 6/25 (B) 25/6 (C) 6 (D) 25

A B

C

DE

F

25. The potential difference across the terminals of a battery is 8.5 V when there is a current of 3A in thebattery from the negative to the positive terminal. When the current is 2A in the reverse direction, thepotential difference becomes 11 V. The internal resistance of the battery is(A) 2.5 (B) 5.5 (C) 2.83 (D) 0.5



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26. The following figure shows the refraction of a light beam by a rectangularglass slab ABCD. Here the angle of emerging e equals(A) i(B) r

(C) i r(D) , such that i < < r

r

e

i A B

C D

27. Choose the correct statement related to the image of a real object formed by a convex mirror.(A) A convex mirror always forms a virtual image.(B) The image formed by a convex mirror may be magnified or diminished(C) the image formed by a convex mirror is always unmagnified but inverted.(D) The image formed by a convex mirror is always magnified and erect.

28. A stone dropped from the roof of a building takes 4 sec to reach the ground. The height of the building

is(A) 9.8 m (B) 19.6 m(C) 39.2 m (D) 78.4 m

29. Parsec is the unit of(A) distance (B) mass(C) time (D) pressure

30. In a nuclear reactor, the moderator is(A) uranium-234 (B) uranium-238(C) cadmium (D) heavy water



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C C h h ee m m ii s s t t r r y y PART 2

Straight Objective TypeThis section contains 30 multiple choice questions numbered 1 to 30. Each question has 4 choices (A), (B),

(C) and (D), out of which ONLY ONE is correct.

Practice Pcm

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