Join Us ::

Menu Home Classes GK Engineering Past Papers Current Affairs Technical GAT Subject Programming Medical Papers

Physics Mcqs :: All Aptitude Test ::

Home » General Knowledge » Physics Mcqs » Aptitude Test - 1
1.1. Radiocarbon is produced in the atmosphere as a result of
A. collision between fast neutrons and nitrogen nuclei present in the atmosphere
B. action of ultraviolet light from the sun on atmospheric oxygen
C. action of solar radiations particularly cosmic rays on carbon dioxide present in the atmosphere
D. collision between fast neutrons and nitrogen nuclei present in the atmosphere
2.It is easier to roll a stone up a sloping road than to lift it vertical upwards because
A. work done in rolling is more than in lifting
B. work done in lifting the stone is equal to rolling it
C. work done in both is same but the rate of doing work is less in rolling
D. work done in rolling is more than in lifting
3.The absorption of ink by blotting paper involves
A. viscosity of ink
B. capillary action phenomenon
C. diffusion of ink through the blotting
D. viscosity of ink
4.Siphon will fail to work if
A. the densities of the liquid in the two vessels are equal
B. the level of the liquid in the two vessels are at the same height
C. both its limbs are of unequal length
D. the densities of the liquid in the two vessels are equal
5.Large transformers, when used for some time, become very hot and are cooled by circulating oil. The heating of the transformer is due to
A. the heating effect of current alone
B. hysteresis loss alone
C. both the heating effect of current and hysteresis loss
D. the heating effect of current alone
6.Nuclear sizes are expressed in a unit named
A. Fermi
B. angstrom
C. newton
D. Fermi
7.Light year is a unit of
A. time
B. distance
C. light
D. time
8.Mirage is due to
A. unequal heating of different parts of the atmosphere
B. magnetic disturbances in the atmosphere
C. depletion of ozone layer in the atmosphere
D. unequal heating of different parts of the atmosphere
9.Light from the Sun reaches us in nearly
A. 2 minutes
B. 4 minutes
C. 8 minutes
D. 2 minutes
10.Stars appears to move from east to west because
A. all stars move from east to west
B. the earth rotates from west to east
C. the earth rotates from east to west
D. all stars move from east to west
11.Pa(Pascal) is the unit for
A. thrust
B. pressure
C. frequency
D. thrust
12.Planets do not twinkle because
A. they emit light of a constant intensity
B. their distance from the earth does not change with time
C. they are very far away from the earth resulting in decrease in intensity of light
D. they emit light of a constant intensity
13.Metals are good conductors of electricity because
A. they contain free electrons
B. the atoms are lightly packed
C. they have high melting point
D. they contain free electrons
14.. Let a thin capillary tube be replaced with another tube of insufficient length then, we find water
A. will overflow
B. will not rise
C. depressed
D. will overflow
15.Out of the following pairs, choose the pair in which the physical quantities do not have identical dimension?
A. Pressure and Young's modules
B. Planck's constant and Angular momentum
C. Impulse and moment of force
D. Pressure and Young's modules
16.If two bodies of different masses, initially at rest, are acted upon by the same force for the same time, then the both bodies acquire the same
A. Velocity
B. momentum
C. acceleration
D. Velocity
17.Pick out the scalar quantity
A. force
B. pressure
C. velocity
D. force
18.Rectifiers are used to convert
A. Direct current to Alternating current
B. Alternating current to Direct current
C. high voltage to low voltage
D. Direct current to Alternating current
19.out of the following, which is not emitted by radioactive substance?
A. Electrons
B. Electromagnetic radiations
C. Alpha particles
D. Electrons
20.out of the following, which is not emitted by radioactive substance?
A. Electrons
B. Electromagnetic radiations
C. Alpha particles
D. Electrons
21.. Sound waves in air are
A. transverse
B. longitudinal
C. electromagnetic
D. transverse
22.. Magnetism at the centre of a bar magnet is
A. minimum
B. maximum
C. zero
D. minimum
23.It is more difficult to walk on a sandy road than on a concrete road because
A. sand is soft and concreter is hard
B. the friction between sand and feet is less than that between concrete and feet
C. the friction between sand and feet is more than that between concrete and feet
D. sand is soft and concreter is hard
24.Find the maximum velocity for the overturn of a car moving on a circular track of radius 100 m. The co-efficient of friction between the road and tyre is 0.2
A. 0.14 m/s
B. 140 m/s
C. 1.4 km/s
D. 0.14 m/s
25.Of the following properties of a wave, the one that is independent of the other is its
A. amplitude
B. velocity
C. wavelength
D. amplitude
26.Lux is the SI unit of
A. intensity of illumination
B. luminous efficiency
C. luminous flux
D. intensity of illumination
27. On a rainy day, small oil films on water show brilliant colours. This is due to
A. dispersion
B. interference
C. diffraction
D. dispersion
28.. Point A is at a lower electrical potential than point B. An electron between them on the line joining them will
A. move towards A
B. move towards B
C. . move at right angles to the line joining A and B
D. move towards A
29. Materials for rain-proof coats and tents owe their water-proof properties to
A. surface tension
B. viscosity
C. specific gravity
D. surface tension
30.RADAR is used for
A. locating submerged submarines
B. receiving a signals in a radio receiver
C. locating geostationary satellites
D. locating submerged submarines
Related Subjects

Date to Date Current Affairs 2022

PakMCQs.net

Quick Links

GAT Subject



   Computer Science    English Mcqs    Agriculture    

Engineering



   Computer Science    Civil Engineering    

Technical



   Networking    Electronics    Database    

Past Papers



   Model Papers    FPSC Papers    
Our Team | Career | Contact | JoinUs | Privacy Policy | DMC

© 2020-2024 by Pak-MCQs.net All Rights Reserved.

Email: [email protected]