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11.Dual Nature of Radiation and matter
hard
A photo sensitive material is at $9\,m$ to the left of the origin and the source of light is at $7\,m $ to the right of the origin along $x$ -axis. The photosensitive material and the source of light start from rest and move, respectively, with $8 \widehat i \, m / s$ and $4 \widehat i \, m / s$ . The ratio of intensities at $t = 0$ to $t = 3\,s$ as received by the photosensitive material is :-
A
$16 : 1$
B
$1 : 16$
C
$2 : 7$
D
$7 : 2$
Solution
Standard 12
Physics
