Question # 1

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

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Hemoglobin

Stars

Galaxies

Stones

When newton ring are seen through the transmitted light, then central spot is.

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Dark

Blue

Bright

Red

Oil film floating on water exhibits colours due to

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Interference

Diffraction

Polarization

All of these

In case of point source the shape of wave front is

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Circular

Spherical

Elliptical

Square

Young in 1801 performed experiment for the first time about

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Interference

Diffraction

Polarization

Particle nature 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

Interplaner distance can be determined by

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Newton's rings

Bragg's law

Diffraction pattern

Interferometer

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

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Decreases

Remain same

Increases

Becomes zero

Newton's rings are formed due to phenomenon of.

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Interference

Dispersion

Diffraction

Polarization

The phenomenon of polarization of light reveals that sun light is

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Longitudinal waves

Transverse wave

Electromagnetic waves

Monochromatic wave

Dark fringes are also called as

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Minima

Maxima

Wave front

Ray of light

The fringe spacing increases if we use.

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Yellow light

Green lgiht

Blue light

Red light

The fringe spacing in a double slit experiment can be increased by decreasing.

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Wavelength of light

Width of slits

Slit separation

Distance between the slits and the screen

Which of the following is evidence of wave nature of light

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Interference

Diffraction

Polarization

All of these

A ray of light is a line

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Parallel to wave front

Normal to wave front

Anti-parallel to wave

Any one of these

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

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Destructive interference

Diffraction

Constructive interference

Polarization

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Physics Fsc Part 1 Chapter 9 Online Test MCQs With Answers

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