Chapter 6.4, Problem 104ES

(a)

To determine

To calculate: The distance of the lens from the sensor in a digital camera if the object to be photographed is $10.0$ a meter away, the focal length of the lens is $80\text{-mm}$ and maximum allowed distance between the lens and the sensor is $120\text{-mm}$.

(b)

To determine

To calculate: The distance of the lens from the sensor in a digital camera if the object to be photographed is $3.0$ meter away, the focal length of the lens is $80\text{-mm}$ and maximum allowed distance between the lens and the sensor is $120\text{-mm}$.

(c)

To determine

To calculate: The distance of the lens from the sensor in a digital camera if the object to be photographed is $1.0$ meter away, the focal length of the lens is $80\text{-mm}$ and maximum allowed distance between the lens and the sensor is $120\text{-mm}$.

(d)

To determine

The closest distance of the object from the lens to photograph the image sharply, if the maximum allowed distance between the lens and the sensor is $120\text{-mm}$, the focal length of the lens is $80\text{-mm}$.

(e)

To determine

The comparison of the answers of part (a), (b) and (c) if they are reasonable and consistent.