What is the object distance when a virtual image is formed at a distance of 30 cm?

What is the object distance when a virtual image is formed at a distance of 30 cm?

If the object distance (u) is 30 cm and image distance (v) is also 30cm. Then, f=15cm.

What is the position of the image when an object is placed at a distance of 30 cm from a concave mirror of focal length 30 cm?

The image is formed on same side of the object. Explanation:Now since the object is placed on 30 cm . It means the object is placed at 2f because f=15cm . In this case when the object is placed at 2f the image in concave lens will form b/w f and o .

What is the position of the image when an object is placed at a distance of 20cm from a concave mirror of focal length 30 cm?

Solution. When an object is placed at a distance of 20 cm from a concave mirror of focal length 20 cm, the position of the image is at infinity. The reason being, the image formed by a concave mirror is at infinity when an object is placed at its focus.

What is the position of image formed when an object is placed at a distance of 30 cm from a convex lens of focal length 15 cm?

So, the image is produced at 15 cm from the lens’ optical centre.

When an object is kept ata distance of 30 cm from a concave mirror an inverted and real image of the same size is formed at the same distance from the mirror 30 cm What is the focal length of the mirror?

The images can be enlarged, diminished, and the same size as the object. (Here we take negative signs by applying a new Cartesian sign convention.) Here v is the image of an object and the image formed by the concave mirror is at 30cm in front of it. Therefore the image is real and inverted.

Where should an object be kept for a concave mirror of focal length of 30 cm so that the image is beyond 60 cm?

So object should be placed at 40 cm to the mirror.

When an object is kept within the focus of a concave mirror?

When an object is kept within the focus of a concave mirror, an enlarged image is formed behind the mirror. The nature of the image is virtual and erect.

At what distance from a concave mirror of focal length 20 cm should an object be placed?

Answer. ♥ OBJECT SHOULD BE PLACED AT 40 CM…

At what distance from a concave mirror should an object be placed?

Answer. So the object should be placed at a distance of 6.7 cm from the pole of the concave mirror (on the left, in front of the mirror).

At what distance from a concave lens of focal length 20 cm draw a ray diagram?

Answer. Thus, object should be placed at 60 from the lens .

At what distance the object should be placed in front of a concave lens of focal length 20cm so that the image is formed at a distance 10cm from the lens?

A concave lens of focal length 20 cm forms an image at a distance of 10 cm from the lens.