Sage-Tips

How do you find the distance of an object in a convex mirror?

The distance between the Principal focus and pole of the mirror is called Focal Length(f)….

1. u is the Object distance.
2. v is the Image distance.
3. f is the Focal Length given by f=R2. f = R 2.
4. R is the radius of curvature of the spherical mirror.

How do you calculate the magnification of a convex mirror?

Mirror Formula and Magnification

1. 1f=1v+1u.
2. Where f is the focal length of the mirror, u the object distance is the distance of the object from the mirror and v the image distance is the distance the image is formed from the mirror.

How far must an object be from a concave mirror if the image formed is to be inverted?

one focal length
Only a concave mirror can be used to produce an inverted image; and this only occurs if the object is located at a position of more than one focal length from the concave mirror.

When a convex mirror of focal length f produces an image 1 n th of the size of the object then distance of the object from the mirror is?

A convex mirror of focal length f produced an image (1//n)^(th) of the size of the object. The distance of the object from the mirror is. solving, we get x=(n-1)f.

Is focal length of convex mirror negative?

The focal length and power of a convex mirror are negative, since it is a diverging mirror. Figure 3. Parallel rays of light reflected from a convex spherical mirror (small in size compared with its radius of curvature) seem to originate from a well-defined focal point at the focal distance f behind the mirror.

What is the focal length of convex mirror?

The distance from the lens to the focal point is called the focal length. For diverging or convex mirrors, the focal length is always positive. For a converging or concave mirror, the focal length is always negative. The focal length of a convex mirror is half of its radius of curvature.

What is mirror formula and magnification Class 10?

Find Magnification Given Object Distance = u = –3 Image Distance = v = –12 So Magnification m is given by m = (−𝑣)/𝑢 m = (−(−12))/((−3)) m = (−12)/3 m = −4 u and v are negative because they are in front of the mirror. Concepts. Reflection of Light. Spherical Mirrors. Parts of Concave and Convex Mirror.

Why is the focal length of a convex mirror negative?

Parallel rays of light reflected from a convex spherical mirror (small in size compared with its radius of curvature) seem to originate from a well-defined focal point at the focal distance f behind the mirror. Convex mirrors diverge light rays and, thus, have a negative focal length.

What is the focal length of a convex mirror?

Under which of the following conditions will a convex mirror of focal length f produces an image?

so, we conclude that, A convex mirror always forms erect, virtual and diminished image. hence, Under which of the following conditions will a convex mirror of focal length f produce an image that is erect, diminished and virtual (d) always.

When the focal length is negative?

A positive focal length indicates that a system converges light, while a negative focal length indicates that the system diverges light. A system with a shorter focal length bends the rays more sharply, bringing them to a focus in a shorter distance or diverging them more quickly.

Is focal length of convex mirror positive or negative?

The focal length of a convex mirror is positive because the focus of a convex mirror is behind the mirror, on the right side.