a concave lens of focal length 15cm forms an image 1/3 the size...

A 17.1 cm focal-length lens is used to project 35 mm slides onto a screen 4.77 m from the projector...

The focal length of lens is 5.0cm. How far from the lens must the opbject be placed to produce an im...

What focal-length lens would you need to place next to a converging lens of focal length 29 cm to cr...

A lens with a focal length of 25 cm is placed 45 cm in front of a lens with a focal length of 5.0 cm...

The focal length of a concave mirror, that produces four times larger real image of an object placed...

The focal length of the lens of the camera is 1/4 meter, and Sarah is 1/2 meter from the camera lens...

A concave lens or focal lens 10cm produce an erect image 40cm from the lens .Determine the object d...

A concave lens has a focal length 10cm.An object of height 2.5cm is kept at a distance of30cm from t...

The focal length of a concave mirror that produces four times larger real image of an object held at...

A lens has a focal length of +30 cm and a magnification of 6. How far apart are the object and the i...

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