Question # 1

Example of thin film is.

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Soap burble

convex lens

Concave lens

Glass plate

Which phenomenon of light proves that light waves are transverse in nature.

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Refraction

Reflection

Diffraction

Polarization

Michelson's interferometer can be used ot find the

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Velocity of light

Wavelength of light

Velocity of sound

Wavelength of sound

The Bragg's equation is given by

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An oil film on water surface shows colour due to.

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Diffraction

Interference

Polarization

Dispersion

The centre of Newton's rings will be

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Dark

Bright

Coloured

Not visible

The centre of Newton's fringe is dark due to.

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Destructive interference

Diffraction

Constructive interference

Polarization

Sound waves can not be

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Reflected

Refracted

Polarized

Diffracted

Dark fringes are also called as

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Minima

Maxima

Wave front

Ray of light

Soap film is sunlight appears coloured due to.

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Dispersion of light

Diffraction of light

Scattering of light

Interference fo light

Newton's rings are formed due to phenomenon of.

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Interference

Dispersion

Diffraction

Polarization

According to Hygen's principle, each point on a wave front acts as a source of.

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Secondary wavelet

New wave front

Sound

Primary wavelet

In young's double slit experiment for the interference the central region will be

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Dark

Bright

Coloured

None of these

The light energy travels in space as waves was firstly proposed by

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Maxwell

Young

Einsten

Hydrogen

Sodium chloride in a flame gives

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Green light

White light

Red light

Yellow light

In case of point source the shape of wave front is.

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Plane

spherical

Circular

Eliptical

Bending of light around the edges of an obstacle is called.

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Refraction

Polarization

Interference

Diffraction

Light entering rom air glass does not change in its.

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Frequency

Wavelength

Velocity

Direction

The distinguish between transverse and longitudinal wave_______ is used.

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Refraction

Interference

Diffraction

polarization

In red light is used as compare to blue light then fringe spacing.

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Decreases

Remain same

Increases

Becomes zero

X-ray diffraction has been very useful in determining the structure of

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Hemoglobin

Stars

Galaxies

Stones

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11th Class Part 1 Physics Chapter 9 Test Online MCQs With Answers

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