Question # 1

In case of constructive interference of two waves, the amplitude of the resultant wave is __________ either of the waves

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Greater than

Equal to

Smaller than

None of these

The terms phase difference and path difference are

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Same

Different

Equal

none of these

Two sources are said to be coherent if they have

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Same amplitude

Same wavelength

Definite phase relation with each other

None of them

Wavelength of red colour as compared to that of violet colour is

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Smaller

Longer

Equal

None of these

To observe interference of light, the condition, which must be met with is that the sources must be

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Monochromatic

Phase coherent

Both of above

None of above

In case of destructive interference of two waves, the amplitude of the resultant wave will be __________ either of the waves.

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Greater than

Smaller than

Equal to

None of these

Light waves are

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Mechanical waves

Electromagnetic waves

Any of above

None of above

In an interference pattern of Young's Double Slit (YDS) experiment

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Bright fringes are wider than dark fringes

Dark fringes are wider than bright fringes

Both dark and bright fringes are of equal width

Central fringes are wider than the outer fringes

Speed of light in vacuum depends upon

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Frequency

Wavelength

Amplitude

None of these

The locus of all the points in the same phase of vibration is called

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Wave pocket

Wavefront

Wave number

None of these

Light waves are

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Transverse waves

Longitudinal waves

Compressional

None of them wave

Laws of reflection and refraction can also be explained by

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Particle nature of light

Quantum nature of light

Wave nature of light

Complex nature of light

Angle between ray of light and the corresponding wavefront is

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0⁰

60⁰

90⁰

120⁰

The appearance of colours in the soap (or oil) film results from

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Dispersion

Interference

Reflection

Refraction

Light has

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Wave nature

Dual nature

Particle nature

None of them

Huygen principle is used to determine

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Speed of light

Location of wavefront

About polarized and unpolarized light

None of them

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