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Pradeep Jogsan posted an Question
November 10, 2020 • 05:09 am
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30 points
30 points
- IIT JAM
- Physics (PH)
Consider a convex lens of focal length f. a point object moves towards the lens along its axis between 2f and f. if the speed of the object is v, then fts image
Consider a convex lens of focal length f. A point object moves towards the lens along its axis between 2f and f. If the speed of the object is V, then fts image would move with speed V, Which of the following is correct ? (A) V, = Vo the image moves away from the lens. (B) V, =-V the image moves towards the lens. (C) V> V: the image moves away from the lens. (D) V,
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Surya prakash verma![best-answer]()
C part magnification is more than 1 in this case so Vi is greater than Vo . also as image tends to move away. explanation: at 2f Image is at 2f itself, but between 2f and f image is beyond 2f.
sir here vi and v0 is velocity of image and object so how it turn into hight???
magnification can be expressed as vi/vo or hi/ho take care of positive and negative signs
vi =m*vo