At which of the following distances from the lens should a slide be placed on a slide projector if f is the focal length of the projector length?
less than f
greater than f but less than 3f
equal to f
equal to 2f
greater than 2f
Explanation
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Discussions (5)
Pls the ansa is wrong,infact no correct answer
The slide is placed between 2f(radius of curvature) and F(the focal length) which will produce a real,magnified and inverted image on the screen
very wrong myschool
no option is correct
its btw f and 2f to give a real, inverted and magnified image.
Answer should be option C.
Explanation:
To form an image using a slide projector, the object is usually placed upside-down (inverted) between the focus F and 2F of the projection lens. Thereby forming an erect, magnified, and real image.
Option C however should be changed to show "Greater than f but less than 2f"...not 3f
Answer should be option C.
Explanation:
To form an image using a slide projector, the object is usually placed upside-down (inverted) between the focus F and 2F of the projection lens. Thereby forming an erect, magnified, and real image.
Option C however should be changed to show "Greater than f but less than 2f"...not 3f
