A person sitting 200 m away from a 20hz sound source.what is the interval after successive compression pulses from the source reach time
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person sitting 200 m away from a 20hz sound source.what is the interval after successive compression pulses from the source reach time
50. Find the position of final image from 'O' for the
arrangement shown.
у.
o
20cm
20cm
Object
O
f=40cm
f=40cm
(1) -24 cm
(2) -120 cm
(3) 40 cm
(4) -20 cm
TO 2020,
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