Question

Given below are two statements : one is labelled as
Assertion (A) and the other is labelled as Reason (R).
Assertion (A): In analogue cameras when a photograph is shot it is one of the many steps to create a final image. Sensor records the exposure.
Reason (R): After a photograph is exposed on a film a latent image is formed first which is then developed.
In the light of the above statements, choose the most appropriate answer from the options given below :

• A. Both (A) and (R) are correct and (R) is the correct explanation of (A)
• B. Both (A) and (R) are correct but (R) is not the correct explanation of (A)
• C. (A) is correct but (R) is not correct
• D. (A) is not correct but (R) is correct

Hint:

Analogue cameras use film and chemical processing, whereas digital cameras use electronic image sensors.

Answer 1

The Correct Option is D

Concept: Analogue photography and digital photography work through different image-recording systems.
• Analogue cameras use photographic film
• Digital cameras use image sensors In analogue photography, light exposure creates a latent image on film, which later becomes visible after chemical development.

Step 1: Understanding Assertion (A). Assertion (A) claims that in analogue cameras:
• A sensor records the exposure This statement is incorrect because:
• Sensors are used in digital cameras
• Analogue cameras use film instead of electronic sensors Although taking a photograph is indeed one step in producing the final image, the statement becomes incorrect because of the use of the term “sensor.”

Step 2: Understanding film exposure in analogue photography. In analogue photography:
• Light strikes the film coated with silver halide crystals
• An invisible latent image forms
• Chemical processing converts the latent image into a visible photograph This process is entirely film-based rather than sensor-based.

Step 3: Understanding Reason (R). Reason (R) states that after exposure on film, a latent image is formed and then developed. This statement is correct. The process includes:
• Exposure
• Formation of latent image
• Chemical development
• Fixing and printing

Step 4: Evaluating Assertion and Reason together. Since:
• Assertion incorrectly mentions sensors in analogue cameras
• Reason correctly explains film development the correct conclusion is: \[ \boxed{(A)\text{ is not correct but }(R)\text{ is correct}} \] Final Conclusion: Therefore, the correct option is: \[ \boxed{(4)} \]