# Physics Competitive Exams Multiple Choice Questions

Hello Students here you will learn objective type Multiple Choice Question Answers for Preparation of Competitive exams test. All of these Objective type MCQs are helpful for interviews and tests Preparations in the PPSC, FPSC, CSS, NTS, OTS, PTS, BPSC, SPSC, KPPSC and others tests in all over the Pakistan Districts in which Physics MCQs are the Part Test/Interview.

 Physics Past Papers MCQs Quiz Test

These MCQs are Prepared for those Students also who are trying to get admission in the colleges and universities. MCAT ECAT NAT Tests in which basics and advanced MCQs of Phyics asked in the competitive exams tests. Physics General Knowledge MCQs With Answers For the Study Purpose with Easy MCQs.

### Physics Solved MCQs For Competitive Exams Preparation

Q.1: Minimum number of communication satellites required to cover the whole earth is-------- ?

1. 4
2. 3
3. 2
4. 5

B

Q.2: The dimensions of the coefficient of viscosity are--------- ?

1. ML-1T-1
2. M2L1T1
3. ML1T-1
4. M2L-1T-1

A

Q.3: Velocity of fluid increases where the pressure is-------- ?

1. Low
2. High
3. Constant
4. Changes continuously

A

Q.4: Terminal velocity is given by equation--------- ?

1. Vt = gr2ρ
2. Vt = 2gr2/9ρ
3. Vt = gr2/9ρ
4. Vt = 9gr2/2ρ

B

Q.5: One torr is equal to----------- ?

1. 1.333 Nm-2
2. .1333 Nm-2
3. 13.33 Nm-2
4. 133.3 Nm2

D

Q.6: Sphygmomanometers measures blood pressure ?

1. Statically
2. Dynamically
3. Some time static and sometimes dynamic
4. None of these

B

Q.7: The normal blood pressure range for a human body is--------- ?

1. 120 to 80 torr
2. 100 to 80 torr
3. 120 to 60 torr
4. 60 to 140 torr

C

Q.8: The length of the second pendulum is---------- ?

1. 100 cm
2. 99 cm
3. 99.2 cm
4. 98 cm

C

Q.9: When the amplitude of a wave becomes double its energy become---------- ?

1. Double
2. Four times
3. One half
4. None time

B

Q.10: The natural frequency of simple pendulum depends upon------- ?

1. It’s mass
2. It’s length
3. Square of its length
4. The square root of its length

D

Q.11: 0.001 kg mass will be equivalent to---------- ?

1. 2.50 GWh
2. 25.00 GWh
3. 0.26 GWh
4. 250 GWh

B

Q.12: The velocity of the mass attached to a spring is maximum at--------- ?

1. Mean position
2. Extreme position
3. Both A and B
4. None

A

Q.13: Rest mass of a photon is--------- ?

1. infinite
2. zero
3. very small
4. 1.67 x 10-27 kg

B

Q.14: same wavelength the kinetic energy of the emitted electron------- ?

1. Becomes double
2. Remains same
3. Becomes half
4. First increases then decrease because of the curvilinear graph

B

Q.15: Hydrogen atom does not emit X-rays because ------------ ?

1. its energy levels are too close to each other
2. its energy levels are too far apart
3. it is too small in size
4. it has a single electron

D

Q.16: For confinement of electron in a box of radius 10-14m the electron, speed should be-------- ?

1. 107m/sec
2. Be zero
3. Not be wave-like
4. Should be greater than the speed of light.

D

Q.17: Ground state energy of the 4th orbit in a H-atom is-------- ?

1. 13.60 eV
2. 3.40 eV
3. 0.85 eV
4. 1.51 eV

C

Q.18: A convex lens of focal length f1 and a concave lens of focal length f2 are placed in contact. The focal length of the combination is------?

1. f2 + f1
2. f2 – f1
3. f1f2/f2+f1
4. f1f2/f1-f2

D

Q.19: In optic fiber transmission the repeater are separated through a distance of ---------- km in newer system ?

1. 300km
2. 200km
3. 100km
4. 20km

C

Q.20: The minimum distance between an object and its real image in a convex lens is-------- ?

1. 2 f
2. 2.5 f
3. 3f
4. 4f

D

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