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Quiz 12
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Q.1
'Parsec' is the unit measurement of
Density of stars
Astronomical distance
Brightness of heavenly bodies
Orbital velocity of giant stars
Q.2
Analog synthesis refers to a technology based on
Placing brief digital recordings of live sounds under the control of a synthesizer keyboard.
Interfacing synthesizer equipment.
Representing data in terms of measurable physical quantities.
Representing physical quantities as numbers.
Q.3
Which of the following is the unit of Astronomical Distance ?
Metre/sec
Sec
Para/sec
Parsec
Q.4
What is unit of Astronomical distance ?
Light year
Angstrom
Weber
Lux
Q.5
What is the unit of the physical quantity Entropy?
Watt per kelvin
Newton per kelvin
Pascal per kelvin
Joule per kelvin
Q.6
What is the unit of the physical quantity "Jerk"?
Meter second
Meter per second cube
Meter per second square
Meter per second
Q.7
What is the unit of relative density?
Kg/m
Kg/m
2
Kg/m
3
It has no unit
Q.8
Which of the following is not a valid conservation law of classical physics?
Law of conservation of energy
Law of conservation of current
Law of conservation of angular momentum
Law of conservation of charge
Q.9
The reverse effect of X–ray emission is
Raman effect
Compton effect
Zeeman effect
Photoelectric
Q.10
Which of the following scientific discoveries was made by C.V. Raman?
Inelastic scattering of light by molecules
Super Conductivity
Controlled nuclear fission
Cyclotron
Q.11
Choose the most appropriate answer: Sir CV Raman was awarded Noble Prize for his work connected with which of the following phenomenon of radiation?
Scattering
Diffraction
Interference
Polarization
Q.12
Who among the following is credited for the Corpuscular theory of light?
Isaac Newton
Christiaan Hyugens
Albert Einstein
James Clerk Maxwell
Q.13
The word "Physics" comes from the Greek word
Phiji
Fusis
Phusik
None of the above
Q.14
Who among the following gave the Uncertainty principle?
R.A Milkman
Ernset Rutherford
S.N Bose
Werner Heisenberg
Q.15
Who among the following is credited for the discovery of ''Expanding Universe"?
Edwin Hubble
Niels Bohr
S Chandra Shekhar
C.V Raman
Q.16
The term photon refers to
Light ray
Sub atomic particle
Radiation
None of the above
Q.17
In a conductor
There is no conduction band
The forbidden energy gap is very wide
The forbidden energy gap is very narrow
The valence band and the conduction band overlap each other
Q.18
The unit of intensity of electric field is
N/c
N/m
J/c
Volt
Q.19
Which of the following is/are part of the Classical Physics?
Optics
Thermodynamics
Both a and b
None
Q.20
General purpose utility gloves are
For surgeries
For cleaning procedures
For handling tubes
All of the above
Q.21
Which of the following events occurred first ?
Albert Einstein propounded the General Theory of Relativity
Max Planck unveiled the Quantum Theory
Marconi first tranmitted a wireless signal
Madame Marie Curie became the first woman Nobel Prize winner
Q.22
Who among the following is credited to work for the unification of electricity, magnetism and optics field of Physics?
James Clerk Maxwell
Michael Faraday
Haris Christian Oersted
Isaac Newton
Q.23
Which one of the following is not a property of electromagnetic waves?
Electromagnetic waves do not show interference and diffraction.
Oscillating electric field and magnetic field are perpendicular to each other.
Electromagnetic waves are transverse waves
Electromagnetic waves do not require a medium to propagate.
Q.24
Coolis tube is used to produce
Radio waves
Micro waves
X-rays
Gama rays
Q.25
An Electric generator is based on which of the following scientific principles?
Faraday's law of Electromagnetic Induction
Super Conductivity
Laws of Thermodynamics
Newton's Law of Motion
Q.26
Planck's constant has the dimensions of :
Energy
Linear momentum
Angular momentum
Force
Q.27
The modulus of rigidity is the ratio of
Longitudinal stress to longitudinal strain
Volume stress to volume strain
Shearing stress to shearing strain
Tensile stress to tensile strain
Q.28
The flux commonly used in brazing is
Ammonium chloride
Borax
Zinc chloride
Resin plus alcohol
Q.29
Where do the electrical charges reside in a charged conductor?
At the core
Throughout the body
Depended upon the nature of the body
Outer surface of the body
Q.30
The strength of an electromagnet can be increased by
Increasing the length of the coiled wire
Increasing current supply
Increasing the number of turns
All of the above
Q.31
The theory of relativity is presented by which scientist
Albert Einstein
Isaac Newton
Stephen Hawking
Marie Curie
Q.32
What is the range of masses involved in the study of Physics?
10
-19
kg to 10
38
kg
10
-30
kg to 10
55
kg
10
-30
kg to 10
30
kg
10
-19
kg to 10
55
kg
Q.33
Which one of the waves have the longest wavelength
Violet
Red
Blue
Green
Q.34
Remote-sensing device has an inbuilt source of
X-ray
G-ray
Ultraviolet ray
Infrared ray
Q.35
Who among the following discovered X-rays?
Marie Curie
J.J Thomson
W.C Roentgen
James Chadwick
Q.36
Ozone layer in the outer atmosphere helps us in
Reflecting radio waves and makes radio communication possible
Regulating the temperature of atmosphere
Absorbing cosmic ray particles
Absorbing UV radiations
Q.37
The waves used in sonography are
Micro waves
Infra-red waves
Sound waves
Ultrasonic waves
Q.38
What is the unit of Magnetic Induction?
Ohm
Farad
Volt
Henry
Q.39
In which region of electromagnetic spectrum does the Lyman series of hydrogen atom lie ?
Visible
Infrared
Ultraviolet
X-ray
Q.40
Ozone layer above the surface of Earth provides a shield against
X-rays
Ultra-violet rays
Gamma rays
Infra-red rays
Q.41
How many laws of physics are there?
5
4
3
2
Q.42
Which physicists is the writer of the book 'A Brief History of Time'?
Isaac Newton
Hans Bethe
Albert Einstein
Stephen Hawking
Q.43
On which day 'National Science Day' is celebrated in India ?
February 23
February 25
February 26
February 28
Q.44
The unit of Planck's constant is
Js
Js
–2
J/s
Js
2
Q.45
When a vehicle passes, TV reception gets distorted. This is because
Metal reflects radiowaves
Spark plug creates electromagnetic disturbances
Vehicle pollution affects the performance of the TV components
Modern vehicles use electroignition system
Q.46
Indicate the correct arrangement for electromagnetic radiation in order of their increasing wavelength.
Microwave, infrared, visible. X-rays
X -rays, visible, infrared, microwave
Visible, infrared, microwave, X-rays
X - rays, infrared, visible, microwave
Q.47
Which of the following has the shortest wavelength?
Gamma rays
Radio waves
Microwaves
Infrared rays
Q.48
In the remote control of television, electromagnetic waves used are
Ultraviolet
Microwave
Radiowave
Infrared
Q.49
The ''Choke' used with a tube light is basically
An inductor
A capacitor
A transformer
A resistor
Q.50
A dynamometer wattmeter can be used for
Only Direct Current
Only Active Current
Both A & B
None of the above
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