Question

The black and white photography is based on the following principle.
A) chemicals undergo a chemical change by heat
B} chemicals undergo change by light
C) chemicals undergo change by electricity
D)chemicals undergo change by the action of dilute acids​

Answer 1

Answer:

A black and white photograph is an image where all color has been removed (either in the digital process or through the choice of film). It consists of shades of gray tone that generally go from dark (black) to light (white).

b: chemicals undergo change by light.

the chemical is 2Agbr(Silver Boride)

In presence of light it changes to 2Ag+ br²

Answer 2

Answer:

B) Chemicals undergo change by light.

Explanation:

The Chemical is 2AgBr ( Silver Bromide ) . In presence of light it changes to 2Ag + Br ².

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