Physics, asked by yui93, 11 months ago

Question: A convex mirror used in a bus has radius of curvature 3.5 metre and if the driver of the bus locate a car at 10 metre behind the bus find the position nature and size of the image of the car.​

Answers

Answered by kritanshu
1

Question: A convex mirror used in a bus has radius of curvature 3.5 metre and if the driver of the bus locate a car at 10 metre behind the bus find the position nature and size of the image of the car.

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} = 1.49m

Thus, the car appears to be at 1.49m from the convex mirror.

Answered by Anonymous
2

R=3.5 , f=R/2= 1.75m

u= -10cm, v=?

1/f =1/v + 1/u

1/1.75 = 1/v - 1/10

v= 1.5 m

magnification (m)= -v/u =0.15

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