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Ray optics is valid when characteristic ...

Ray optics is valid when characteristic dimensions are

A

Of the same order as the wavelength of light

B

Much smaller than the wavelength of light

C

Of the order of one millimetre

D

Much larger then the wavelength of light

Text Solution

Verified by Experts

The correct Answer is:
D
Ray optics is valid when size of the objects is much larger than the order of wavelength of light .
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Knowledge Check

  • Ray optics is valid when charavteristic dimensions are

    A
    of the same order as the wavelength of light
    B
    much smaller than the wavelength of light
    C
    of the order of one milimetre
    D
    much large than the wavelength if light

  • Ray optics fails when

    A
    The size of the obstacle is 5 cm
    B
    The size of the obstacle is 3 cm
    C
    The size of the obstacle is less than the wavelength of light
    D
    (a) and (b) both

  • Which of the following is accompanied by the characteristic X - ray emission ?

    A
    `alpha` - particle emission
    B
    Electron emission
    C
    Positron emission
    D
    `K` - electron capture

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    The characteristic X-ray radiation is emitted when

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