Chemistry, asked by fuuffjf, 11 months ago

A convex mirror used in a purse as radius of curvature 3.5 is the driver of the bus locates a car at 10:00 behind the bus then find out the position nature and size of the image of the car?​

Answers

Answered by kritanshu
5

Solution:

Here,

R = 3.5m

f = \frac{r}{2} = \frac{3.5}{2} = 1.75m

u = - 10.0m

Step1: Determination of the position of the car.

Using,

 \frac{1}{u} + \frac{1}{v} = \frac{1}{f}

 \frac{1}{v} = \frac{1}{f} - \frac{1}{u}

\frac{1}{v} = \frac{1}{1.75} - \frac{1}{( - 10)}

\frac{1}{v} = \frac{1}{1.75} + \frac{1}{10} \ = \frac{47}{70}

v = \frac{70}{47} = 1.5m

Thus, the car appears to be at 1.5m from the convex mirror.

Step2: Determination of the size and nature of the image.

Using,

m = - \frac{v}{u}

m = \frac{ - 1.5}{( - 10)} = 0.15

Thus, the size of the image of the car is 0.15 times the actual size of the car.

Since, 'm' is positive, so image of the car is erect or upright.


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Answered by Anonymous
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