Math, asked by wearestilltudb, 1 year 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 saivivek16
0

HEY mate,.

R= 3.5

U= 10.0

f= R/2   =3.5/2

3.5*10/2*10

35/20

7/4

1.75

1/f= 1/v +1/u    1/v =  1/f- 1/u       1/v= 1/1.75-1/-10

= 1/7/4-1/-10   =4/7- 1/-10

= -40-7\ 70 = 47/70

v = 70\47

v = 1.5

m= -v\u

m = -1.5\[-10]

= 0.15

Hope it will help you

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