just-jatin

A circular glass plate has a diameter of 350 mm (13.78 in) and athickness of 10 mm (0.394 in). The edge of the plate is clamped,and air at 258C (778F) is on both sides of the plate. Determine the transmission loss for the plate for a frequency of [A] 250 Hz and [B]1000 Hz.

What is the sum which yields a profit of 600 euros, if has been invested for 2 months with an annual interest rate of 6%

A) 36,000 euros 

B) 43,200 euors

C) 7,200 euros 

D) 21,600 euros 

E) 60,000 euros