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WorksheetsTest on interference
Total questions: 10
Worksheet time: 5mins
Haidinger's fringes are fringes of (a)
Colors in thin films is due to (a)
How is a very thin film viewed in reflected system of light?
(a)
Application of newton's ring is
To find out the wavelength of light
to find the refractive index liquid
Both a and b
Coherent sources can be produced by
division of wavefront
Division of amplitude
Partial reflection or partial refraction
Reflection or refraction
All the above
True or false.
Interference obeys law of conservation of energy.
True
false
In the reflected system of monochromatic light ,the center of newton's ring is.....
bright
dark
Condition of constructive interference is
a) path difference=
n x wavelength
b)Phase difference=
n x 2Π
c)Path difference=
(2n+1) x wave length/2
d)Both (a) and (b)
Condition of destructive interference
a)path difference=
n x wavelength
b)phase difference=
(2n+1)Π
c)path difference=
(2n+1) x wavelength/2
d)phase difference=
n x 2Π
e)both (b) and (c)
Coherent sources have
same amplitude
same wave length
Same frequency
Same phase or constant phase difference
All the above
