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A bus of length 5m is behind the car having the back view mirror of back radius of 2m. What will be the length of image when a bus 10m away. |
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Answer» h = 5 r = 2m d = r/2 = 1 m u = -10 m \(\frac1f=\frac1v+\frac1u\) \(\frac11=\frac1v-\frac1{10}\) \(\frac1v=1+\frac1{10}\) \(\frac1v=\frac{11}{10}\) v = \(\frac{10}{11}\) M = \(\frac{h_i}{h_o}\) \(\frac{h_i}{h_o}= \frac{-v}{u}\) \({h_i} = \frac{-v}{u}\times h_o\) \(h_i=\frac{-10}{11}\times\frac{1}{-10}\times5\) \(h_i=\frac5{11}\) |
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