in the adjoining figure S is the position of the screen on which a sharp image of distant object (nearly 600m away from the conca​ve mirror of focal length 10 cm) is formed by the mirror M .if the object moves towards the mirror say 50cm,then to obtain sharp image of the object on the same screen again the 
a)screen should be moved towards the object
b)screen need not be moved 
c)mirror should be moved towards the screen
d)screen and mirror both towars the object

Dear Student,

Please find below the solution to the asked query:

If object is moved closer to the mirror, then the screen will have to be moved away from the mirror i.e a) screen should be moved towards the object, in order to obtain the image. 


Hope this information will clear your doubts .

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