Question

A truck uses convex mirror of radius of curvature 2.0m as a rear view mirror. A Maruti Car is coming behind the truck at a distance of 10m. what will be the position and size of the image of the car when observed by the truck driver?

Answer 1

The image is placed at position 10/11 and the size of the image is 10/11 m

Explanation:

Given data:

Radius(R)=2 m

Focal length(f) = R/2= 1 m

Applying lens mirror formula

1/v+1/u=1/f

1/v - 1/10 = 1/1

1/v= 1+1/10 = 11/10

v = 10/11 m

Position of the image will be 10/11 m in the mirror

Magnification(M) = v/u = (10/11) / (-10) = -1/11

Size of image= M*u = -10 x (-1/11) = 10/11 m

Thus the image is placed at position 10/11 and the size of the image is 10/11 m.

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The focal length of a lens is 10 cm. An object is placed in front of the lens at a distance 5 cm. Write down the nature and size of the image formed. ?

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Answer 2

Answer:

Explanation:

HEYA!!

QUESTION: a truck uses a convex mirror as view finder whose radius of curvature is 2 m. A Maruti car is coming behind the truck at a distance of 10 m what will be the position of the image of the car when observed by the driver of the truck through the convex mirror

ANSWER:

radius(R)=2m

focal length(f) = R/2= 1m

applying mirror formula

1/v+1/u=1/f

1/v - 1/10 = 1/1

1/v= 1+1/10 = 11/10

v = 10/11m

position of the image will be 10/11 m in the mirror

magnification(M) = v/u = (10/11) / (-10) = -1/11

:. Size of image= M*u = -10*(-1/11) =

hope it helps uh