a convex mirror used in a person has radius of curvature 3.5 metres is the driver of the best locates a car at 10 metres behind the bus find the position nature and size of the car.
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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
image is real, erect and diminished
Answered by
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Solution:
Here,
Step1: Determination of the position of the car.
Using,
Thus, the car appears to be at 1.5m from the convex mirror.
Step2: Determination of the size and nature of the image.
Using,
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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