Sage-Tips

What will be the position of image if object is placed 20cm in front of a concave mirror of focal length 15 cm?

hence object is placed between F and c and image formed is beyond C . —>AT A DISTANCE OF 60CM FROM THE MIRROR.

What is position of image when an object is placed at distance of 20 cm from concave mirror of focal length 10 cm?

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.

When an object is placed at a distance of 20 cm from a plane mirror what is the distance between mirror and image of the object * 1 point?

Initially, the object is placed 20 cm in front of mirror. So the image will form 20 cm behind the mirror. distance between mirror and image = 18 cm, which is 2 cm less than the initial case.

When an object is placed at a distance of 20cm in front of a concave mirror of focal length 15 cm What is the image formed by the concave mirror?

So we can now say that the position of the image will be 60 cm from the mirror.

When an object is kept at a distance of 20cm from a concave mirror?

When an object is kept at a distance of 20 cm from a concave mirror, the image is formed at a distance of 10 cm. If the object is moved with a speed of 4 m/s, the speed with which the image moves is us-20 (A) 10 cm/sec (B) 1 m/sec (C) 4 m/sec (D) 0.4 m/sec.

When an object is placed at 20 cm from a concave lens of focal length 20 cm Where will the image be formed?

Explanation:1/20 +1/q= 1/10 q=20 cm The image is formed behind the lens at 2f or the center It is real, inverted, and the same size as the object. …

When an object O placed at a distance of 20cm in front of a mirror an image of the same size as that of O was formed then what will be its focal length?

∴ The image will be formed in front of the concave mirror at a distance of 20 cm. The negative signs shows that the image is real. Hence the ration of the of the image of the size of the object is 1 : 1 .

When an object is placed 20cm from a plane mirror?

An object is placed 20 cm in front of a plane mirror then the image is formed at 20 cm behind the mirror. If the mirror is moved 2 cm toward the object. Hence, The total distance between the positions of the original and final image is 4 cm.

What is the distance between the object and the image if the object is 4 cm in front of the plane mirror?

So, distance between the original and final images = 40 cm – 36 cm = 4 cm. An image of an object is observed on a plane mirror. The distance between the mirror and the image is 15 m.

Is placed 20cm from a convex lens of focal length 10 cm The image must be?

image formed will be real and inverted also size of image will be equal to the size of object. so, IMAGE MUST BE AT 20 CM FROM THE LENS, SAME SIZE TO THE OBJECT ALSO REAL AND INVERTED.

When an object is placed at a distance of 20cm from a concave mirror the magnification is?

3
If an object is placed at a distance of 20cm from the pole of a concave mirror, the magnification of its real image is 3.

What is the image formed at a distance of 15 cm?

When an object is placed at a distance of 15 cm from a concave mirror, its image is formed at 10 cm in front of the mirror. What is the focal length of the mirror? f is the focal length of the mirror.

How far away from a concave mirror is the virtual image formed?

Its virtual image is formed 20 cm from the mirror. Originally Answered: At what distance from a concave mirror of focal length 10 cm should an object be placed so that its real image and the virtual image is formed 20 cm from the mirror?

What is the distance from the mirror on the other side?

As per the new Cartesian sign convention, distances from the mirror toward the object are considered as negative and distances on the other side of the mirror are considered as positive. It is given that u = − 15 cm and v = − 10 cm.

What is the sign for object distance image distance and focal length?

1/v + 1/u = 1/f where u, v, f are object distance, image distance, and focal length respectively. What is the sign for object distance, image distance, and focal length for a concave/convex lens? the object distance is -ve. image distance is +ve for real image and -ve for virtual image. focal length is +ve. focal length is -ve.