1. Tardigrade
  2. Question
  3. Physics
  4. A point object is kept in front of a plane mirror. The plane mirror is doing S H M of amplitude 2 cm. The plane mirror moves along the x-axis and x-axis is normal to the mirror. The amplitude of the mirror is such that the object is always infront of the mirror. Find the amplitude (in cm) of SHM of the image.

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Q. A point object is kept in front of a plane mirror. The plane mirror is doing $S H M$ of amplitude $2\, cm$. The plane mirror moves along the $x$-axis and $x$-axis is normal to the mirror. The amplitude of the mirror is such that the object is always infront of the mirror. Find the amplitude (in $cm$) of $SHM$ of the image.

Ray Optics and Optical Instruments

Solution:

If object is fixed and only plane mirror movement through ' $x$ ' the image move through $2\, x$. so amplitude of $SHM$ of image will be $4 \,cm$.