High-Q | English פסיכומטרי

Unit 5

19. Silver chloride turns dark -

(1) when it is exposed to air (2) when mixed with powdered nitrate of silver (3) upon exposure to light (4) because it is a liquid substance

20. According to the second paragraph, it can be inferred that the main problem in the 18th and 19th centuries was -

(1) capturing images on certain materials (2) making the photographic image permanent (3) choosing the correct color for the liquid (4) overexposing the image to air

21. The development of photographic plates -

(1) led to a significant reduction in exposure time (2) was only partially succesful (3) enabled the image to become permanent (4) was possible through a process which allowed images to remain permanent

22. A good title for the text could be -

(1) Experiments in Materials (2) Great Photographers of the Past (3) The Birth of Photography (4) Making an Image Permanent

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