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Question
The frequency of electromagnetic wave which is best suitable to observe particle of radius 3×10−4 cm is of the order of
The frequency of electromagnetic wave which is best suitable to observe particle of radius 3×10−4 cm is of the order of
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Solution
The correct option is A 1015 Hz
The wavelength of radiation used should be less than the size of the particleSize of particle =3×10−4cm/s=3×10−6m/s Size > λ=cυ
3×10−6>3×108υ or υ>1014 Hz
In the above option higher frequency is 1015 HzOption A
The wavelength of radiation used should be less than the size of the particle
Size of particle =3×10−4cm/s=3×10−6m/s
Size > λ=cυ
3×10−6>3×108υ or υ>1014 Hz
In the above option higher frequency is 1015 Hz
Option A
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