photographic plate meaning in Hindi

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The top of the camera had hinged doors for placing photographic plates.
Since the early 20th century, measures have been made with photographic plates.
X-rays can also trigger the chemical reaction that darkens a photographic plate.
There are maps and photographic plates of the battlefields in the book.
This took photographic plates in blue light of the entire southern sky.
He prepared his own photographic plates with a reduced layer of gelatin.
The variability of this system was discovered from photographic plates in 1935.
"It's a good argument for keeping old photographic plates, " he said.
The photographic plates produced using that camera are now stored at Yerkes Observatory.
It has been seen on photographic plates since at least 1887.

noun.

a flat sheet of metal or glass on which a photographic image can be recorded
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