4. An object is placed at a distance of 28 con in front of a converging mirror & image is also formed at a distance of 28 cm. Find the focal length of the mirror & write two characteristics of the image formed also draw the ray diagram
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Answer:
Answer:v= -6.66cm
Explanation:
f=-10 cm
u=-20 cm
mirror formula = 1/u+1/v=1/f
or,1/v=1/u+1/f
=>1/v=1-20+(1/-10)
=>1/v=-1/20-1/10
=>1/v=-1-2/20
=>-3/20
=>-20/3
=>v=-6.66 cm
Explanation:
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