# Quaid-i-Azam University Admissions  Spring 2020  Sample Paper Physics

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## B.S. Physics Admission Test Sample Paper Physics

Time: 120 minutes

• Answer all 38 questions or as many as you can.
• Each question carries equal marks (+1). Circle only the right answer.
• Wrong answers will be negatively marked. (-1/4 for each wrong answer).
• Circling two choices will be considered as a wrong answer.
• If you circle the wrong box, write “cancel” to cancel it.
• Do not attempt to copy. Your neighbor may have a different ordering of questions and answers.
• Any attempt to copy answers from another candidate will result in permanent disbarment from the University for all purposes.
• No Books or calculators are allowed.
• GIVE ALL ANSWERS ON THIS SHEET ONLY. The remaining sheets are not to be submitted – you may take them with you.

1. The dimensions of gravitational constant G are
2. M-1L3T-2
3. M-2L1T-2
4. M-1L3T2
5. M-3L2T-1

1. A Force F =10 N makes an angle of 30o with the x-axis, the vertical component of the force is A. 5 N
2. 10 N
3. 5 N
4. 5 N

1. The area between the velocity-time graph and time axis is
2. acceleration
3. velocity
4. distance
5. work done

1. A ball is thrown with a speed of 10 m/s in a direction 15o above the horizon. The range of the ball is (assume g=10.0 m/s2)
2. 0 m
3. 0 m C. 91.8 m
4. 19.8 m

1. A person throws a ball of mass 5 kg is moving with speed 2 m/s. If its velocity is double then its kinetic energy will be
2. 10 J
3. 40 J
4. 5 J
5. None of the above

1. An object of mass 3 kg is dropped from a rest position h1 m above the ground. What is its velocity at height of h2 m above the ground?

B.

C.

D.

1. A body of moment of inertia I=2.0 kg m2 about a fixed axis rotate with constant angular velocity of 20.0 rad/s. The angular momentum of the body is
2. 40.0 Js B. 20.0 Js C. 30.0 Js
3. 10.0 Js

1. Constructive interference of two light waves occur when A. The path difference is integer multiple of the wavelength
2. The path difference is half integer multiple the wavelength
3. The path difference is 180o
4. Both (b) and (c)

1. A light is traveling from air (refractive index=1.0) to glass (refractive index=1.33). If the incident angle is 30o , the angle of refraction is approximately
2. 45o
3. 55o
4. 90o
5. None of the above

1. The average translational kinetic energy of molecule in a gas at temperature 30oC is (kB=1.38×1023

J/K)

1. 6.27×10-21 J B. 62.7×10-23 J C. 3.27×10-25 J
2. 6.27×10-19 J

1. Two opposite point charges each of magnitude q are separated by a distance 2d. The electric potential a point X mid-way between them is
2. q2/2d
3. 0
4. 5
5. 3q2/2d

1. A particle carrying a charge of 5e falls through a potential difference of 6.0 V. The energy (in eV) required by it is
2. 0
3. 0
4. 5
5. 6

1. The potential difference between the terminals of a battery in an open circuit is 6.0 V. When it is connected a cross a resistance of 9.0Ω. The dissipated power is
2. 0 Watt
3. 0 Watt
4. 0 Watt
5. 0 Watt

1. A circuit contains two unequal resistances in parallel. Which of the following statement is true
2. Current is same in both
3. Potential difference across each is same.
4. Large current flows in larger resistance D. Smaller resistance has smaller resistance.

1. The magnetic flux through a plane element of area A in a uniform magnetic field B is maximum when
2. The field is parallel to the area
3. The field is perpendicular to the area
4. The field is anti-parallel to the area
5. Both (b) and (c)

1. How fast must a proton move in a magnetic field of 3.0×10-3 T such that the magnetic force is equal to its weight
2. 40×10-5 m/s
3. 340×10-5 m/s
4. 90×10-5 m/s
5. 30×10-5 m/s

1. An alternating current (AC) generator is operating at 60 Hz has a coil of 600 turns. The angular speed is

1. An electron is accelerated through a potential difference of 100 V. The de Broglie wavelength is
2. 22 x 10-10 m
3. 122 x 10-10 m
4. 22 x 10-10 m
5. 222 x 10-10 m

1. A sodium surface is illuminated with light of wavelength 650 nm. The maximum kinetic energy of the ejected electron is (The work function of sodium metal is 2.46 eV)
2. 250 J
3. 250 eV
4. 50 eV
5. None of the above
6. In a Hydrogen atom the minimum possible value of the Principal Quantum Number n is A. Zero
1. 1
2. -1
3. None of the above

1. A matrix B is said to be Hermition if
2. Bt =2B
3. (B2)t =B
4. Bt =−B
5. Bt =B

1. For S = sum of the roots and P = product of the roots, the quadratic equation will be
2. x2 SxP=0
3. x2 +SxP=0
4. x2 Sx+P=0
5. x2 +Sx+P=0

1. The general terms of the sequence −1,1,−1, 1,−1,…is
2. (−1)n
3. (−1)n1
4. (−1)n+1
5. (−1)n+3

1. 1+2+3+…+(n−1)+… is
2. n(n+1) 2
3. n(n−1)

2

2

1. ⎛⎜n(n−1)⎞⎟

⎝ 2 ⎠

1. If sin(x/2)= 4/5, then cos(x/2) will be
2. −3/5
3. 6/5
4. 4/5
5. 3/5

26.A ladder makes an angle of 60 degree with wall at a distance of 6 meters, from the wall. The length of ladder is

1. 8 meters
2. 6 meters
3. 15 meters
4. 12 meters

1. y= sin1 x if and only if x is
2. Infinity
3. 2
4. 3
5. 1

1. Solution of 1+cosx=0 is
2. 0
3. π/2
4. π

1. If g(x)=x3 then it is an
2. IMPLICIT Function
3. Elliptical Function
4. EvenFunction
5. Odd Function
6. If y3 =x2 then dy/dxis

3⎛ x⎞

⎜⎜ ⎟

1. 2⎝ y⎟⎠

2

2⎛ x⎞

⎜⎜ ⎟

1. 3⎝ y⎟⎠

2⎛ x ⎞

⎜⎜ ⎟

1. 3⎝ y2 ⎟⎠

3⎛ x⎞2

⎜⎜ ⎟

1. 2⎝ y⎟⎠

1. The 20th derivative of ex is
1. ex
2. 20ex
3. ex
4. e−20x

1. Area under the line y=x and above the x-axis from 0 to 1 is Quaid-i-Azam University Admissions 2020
1. 1/3
2. 1/4
3. 1/2
4. 1

d2y dy

1. The order of differential equation xdx2 +dx−2x=0is
1. 4
2. 6
3. 2
4. 3
2. Two lines 5x+7y=35,3x−7y=21intersects at
1. (7,1)
2. (3,2)
3. (2,5)
4. (7,0)

1. An equation ax2 +2hxy+by2 =0represent, two imaginary lines if
1. ab=0
2. 2h=ab
3. h2 ab
4. h2 =ab
2. If 3x−2≠4 then
1. x is a set of real numbers less then 2
2. x is a set of all real numbers less then and equal to 2
3. x is a set of all negative real numbers D. x is a set of all positive real numbers

x2            y2

1. If a=b , in the equation of a2 +b2 =1the conic will be Quaid-i-Azam University Admissions 2020
1. Parabola
2. Hyperbola
3. Circle
4. Ellipse
2. What is the vector product of a vector 2iˆand 3kˆ Quaid-i-Azam University Admissions 2020
1. 5
2. −6kˆ
3. −6ˆj
4. 6ˆ

 Q.1 A B C D E Q.14 A B C D E Q.2 A B C D E Q.15 A B C D E Q.3 A B C D E Q.16 A B C D E Q.4 A B C D E Q.17 A B C D E Q.5 A B C D E Q.18 A B C D E Q.6 A B C D E Q.19 A B C D E Q.7 A B C D E Q.20 A B C D E Q.8 A B C D E Q.21 A B C D E Q.9 A B C D E Q.22 A B C D E Q.10 A B C D E Q.23 A B C D E Q.11 A B C D E Q.24 A B C D E Q.12 A B C D E Q.25 A B C D E Q.13 A B C D E Q.26 A B C D E

 Q.27 A B C D E Q.28 A B C D E Q.29 A B C D E Q.30 A B C D E Q.31 A B C D E Q.32 A B C D E Q.33 A B C D E Q.34 A B C D E Q.35 A B C D E Q.36 A B C D E Q.38 A B C D E

 Q.1 A B C D E Q.14 A B C D E Q.2 A B C D E Q.15 A B C D E Q.3 A B C D E Q.16 A B C D E Q.4 A B C D E Q.17 A B C D E Q.5 A B C D E Q.18 A B C D E Q.6 A B C D E Q.19 A B C D E Q.7 A B C D E Q.20 A B C D E Q.8 A B C D E Q.21 A B C D E Q.9 A B C D E Q.22 A B C D E Q.10 A B C D E Q.23 A B C D E Q.11 A B C D E Q.24 A B C D E Q.12 A B C D E Q.25 A B C D E Q.13 A B C D E Q.26 A B C D E

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