What will be the magnification when an object is at 20cm?

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.

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 20cm from a concave mirror real image magnified three time is formed find the focal length of the mirror?

Thus, the focal length of the concave mirror is 15 cm.

Where must an object be placed in front of a convex lens of focal length 20cm to obtain a real and four times magnified image where will the image form?

Answer: Object must be placed 30 cm in front of the mirror..

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

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

Where should object be placed in front of a concave mirror of focal length 20cm so as to obtain real image two times magnified?

Answer Expert Verified. so the object must be placed 30 cm from the mirror.

What is the distance in front of the concave mirror?

Expert Answer: object is placed at distance of 20 cm in front of concave mirror. u = – 20 cm (object is placed to the left of the mirror) focal length of concave mirror, f= – 12 cm (focal length of concave mirror)

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.

What is the distance between the real object and its image?

The distance between the real object and its image in a convex mirror of focal length 12 cm is 32 cm. the size of the object is 1cm. the object distance will be when we reverse the image then image will formed or not A REAL OBJECT IS LOCATED IS LOCATED AT ZERO END OF A METER STICK.

What is the relationship between magnification and mirror?

The mirror equation expresses the quantitative relationship between the object distance (do), the image distance (di), and the focal length (f). The equation is stated as follows: The magnification equation relates the ratio of the image distance and object-distance to the ratio of the image height (hi) and object height (ho).