AP and TS EAMCET Medical 2020 Model Paper 2

A block of mass m is suspended vertically with a spring of constant k . The block is made to oscillate in a gravitation field . Its time period is found to be T. Now the space between the plates is made gravity free ,and an eiectric field E is produced in the down-ward direction . Now the block is given a charge q . The new time period of oscillation is