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Dispersion Of Light
Quiz 2
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Q.1
What form does light travel in?
Curved line
Zig-Zag
Straight Line
Q.2
The far point of a hypermetropic eye is at a finite distance from the eye.
False
True
Q.3
Dispersion of light referred to as________.
Bending of light
Splitting of light in seven colours
Splitting of light in primary colours
Bouncing back of light
Q.4
Prisms usually have___________ faces.
Square
Triangular
Rectangular
Circular
Q.5
How the pond appears to be, when it is seen from outside?
Seems Deeper
Seems shallower
Seems very deep
No change is there
Q.6
The ratios of the speeds of light in a given pair of media gives us________.
Absolute refractive index
Relative refractive index
Optical density
None of these
Q.7
THE LINE JOINING THE CENTRES OF CURVATURE OF THE 2 SURFACES OF A LENS IS KNOWN AS ITS...........
OPTICAL CENTRE
OPTICAL DENSER
PRINCIPAL AXIS
RADII
Q.8
Speed of light in a given medium is the indicator of its________.
Refractive index
Optical density
Dispersion
None of these
Q.9
The broad wavelength range of visible spectrum is-The broad wavelength range of visible spectrum is
(10000-20000) A
(4000-7000) A
(2000-4000) A
None of these
Q.10
For which colour, refractive index of glass is maximum?
red
violet
green
yellow
Q.11
When white light enters a glass prism from air, the angle of deviation is least for
blue light
yellow light
red light
violet light
Q.12
The danger signals installed at the top of tall buildings are red in colour. These can be easily seen from a distance because among all other colours, the red light
is scattered the most by smoke or fog
is scattered the least by smoke or fog
is absorbed the most by smoke or fog
moves fastest in air
Q.13
The deflection of light by minute particles and molecules of the atmosphere in all direction is called ____________ of light.
dispersion
scattering
interference
tyndell effect
Q.14
One cannot see through the fog, because
refractive index of the fog is very high
light suffers total reflection at droplets
fog absorbs light
light is scattered by the droplets
Q.15
THE ANGLE, BETWEEN THE INCIDENT RAY AND THE NORMAL AT THE POINT OF INCIDENCE IS KNOWN AS.....
ANGLE OF INCIDENCE
ANGLE OF REFRACTION
PRISM
LENS
Q.16
Red light is refracted the least by a glass prism because red light travels the ............ through the glass prism
slowest
fastest
Q.17
Violet light is refracted the most by a glass prism as the light travels the ................ through the glass prism.
slowest
fastest
Q.18
The dispersion of light is the separation of white light into the spectrum of light, namely red, orange, yellow, green,blue,indigo and violet.
True
False
Q.19
A transparent object that bends light into rainbow colors.
prism
mirror
convex lens
concave lens
Q.20
The breaking up of white light into its component .Based on the statement given, name the process that takes place in the white light.
Dispersion
Reflection
Refraction
Scattering
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