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a small mirror is suspended bya thread vertically. a short pulse of monochromatic light rays is incident normally on the mirror and gets reflected. which of the following is correct????? (a) mirror will start to oscillate (b) wavelength of the reflected rays will be greater than that of incident rays (c) wavelength of the reflected rays may be less than that of incident rays (d) none of these the answer says a and b... i want to know why would the mirror oscillate??


a small mirror is suspended bya thread vertically. a short pulse of monochromatic light rays is incident normally on the mirror and gets reflected.
which of the following is correct?????
 
(a) mirror will start to oscillate
(b) wavelength of the reflected rays will be greater than that of incident rays
(c) wavelength of the reflected rays may be less than that of incident rays
(d) none of these
 
the answer says a and b...
i want to know why would the mirror oscillate??


Grade:upto college level

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