What is the minimum length of mirror needed to see yourself?

In other words, to view an image of yourself in a plane mirror, you will need an amount of mirror equal to one-half of your height. A 6-foot tall man needs 3-feet of mirror (positioned properly) in order to view his entire image.

What size mirror do I need to see my whole body?

In order to view your full image, the minimum size of the mirror has to be half of your height. It is really that simple. The plain logic is that, in reflection, the angle of falling light on the object is equal to the angle of reflection. Hence, the image of a 6ft tall person will require a 3ft long mirror.

What is the minimum height the mirror must have for you to be able to see the top of the table in the mirror?

1 Answer. Solution : The mirror must be at least half as tall as the person standing in front of it. Since the person is 180 cm tall, the vertical dimension of the mirror must be at least 90 cm. The lower edge of the mirror must be at a height that is half the distance between his feet and eyes.

What is the length of mirror you must use to see your whole body Why?

You will see that you only need a mirror length of about 1/2 your height. This is due to the principle of reflection, which states that the angle of incidence equals the angle of reflection. A light ray from your foot strikes the mirror like a ball off a wall.

What must be the minimum height of a plane mirror in which a person can see his full length draw a diagram to justify your answer?

So, MN = 1/2 AB. Thus, in order to see the full length, a person requires a plane mirror which is half his own height. This relation is true for any distance of the object from a plane mirror.

What length of the mirror compare with my height I need to see myself from any distance?

In other words, to view an image of yourself in a plane mirror, you will need an amount of mirror equal to one-half of your height. A 6-foot tall man needs 3-feet of mirror (positioned properly) in order to view his entire image.

Should I tilt my mirror?

“A mirror that is tilted even slightly forward will tend to make you look shorter and wider,” she said. “A mirror that’s tilted toward the back makes you look longer and leaner.”

How can you tell a good mirror?

Check these three factors when looking for a high quality mirror: glass quality, mirror thickness, and mirror silvering. In glass quality, see if the glass used in the mirror has no inconsistencies in its makeup and does not distort a reflection. The glass should have a flat surface.

How tall should full-length mirror be?

A basic full-length mirror is at least 48 inches tall. This length will enable you to view yourself in full height by standing a few feet from the mirror. However, a mirror that is no less than the exact height of your body will make it easier for you to see a true replica of your form.

Why mirror should be half your height?

In order to see full image of a person, the minimum size of the mirror should be one half the person’s height. This is so because, in reflection, the angle of incidence is equal to angle of reflection. So, to see the image of a 6 ft tall person, a 3 ft long mirror is required.

What minimum mirror length would be required so that a person 2.0 m in height could see his entire body?

In order to see full image of a person, the minimum size of the mirror should be one half the person’s height. This is so because, in reflection, the angle of incidence is equal to angle of reflection.

What is the mirror formula?

Let’s explore the mirror formula (1/f = 1/v+1/u) and see how to locate images without drawing any ray diagrams.

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

The mirror formula is represented by the following equation:

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.

What is U and V in mirror?

In a spherical mirror:



The distance between the object and the pole of the mirror is called the object distance(u). The distance between the image and the pole of the mirror is called Image distance(v). The distance between the Principal focus and pole of the mirror is called Focal Length(f).

What is the spherical mirror formula?

R=CF+FP. In other words, in the small-angle approximation, the focal length f of a concave spherical mirror is half of its radius of curvature, R: f=R2.

How do you get the focal length of a concave mirror?

Focal Length of Concave Mirror Formula

1. 1f.
2. 1f.
3. Or 1f.
4. Or f=uvu−v.
5. F=R2.

What is the focal length of a spherical mirror?

Focal length of the spherical mirror is the distance from the pole of the mirror to the focus point of the object. The radius of the curvature of the mirror is determined by the two formulas, one is magnification formula and other is focal length formula.

What is the focal length of a convex mirror?

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.

How do you find the focal length of a concave and convex mirror?

To determine focal length of a given concave mirror



The screen should be placed in front of the reflecting surface of the mirror. To obtain a clear, sharp image the screen should be adjusted. Using a metre scale the distance between the concave mirror and screen can be determined.

Which mirror has positive focal length?

convex mirror

(a) A convex mirror has a positive focal length because the focus of a convex mirror is on the right side and behind the mirror.

What is convex mirror?

A convex mirror, or simply put a curved mirror, is a mirror in which the reflective surface bulges toward the light source. The surface of a curved mirror can be convex, which means bulging outward, or concave, bulging inward. A convex mirror reflects the light outwards and is therefore not used to focus light.

What are the 3 types of mirrors?

Three common types of mirror are the plane mirror, which has a flat, or plane, surface; the convex mirror; and the concave mirror.

Which mirror is used in camera?

Convex lens: 1) A convex lens is used in microscopes and hand glass. 2) A convex lens is used as a camera lens in cameras. 3) The convex mirror is used as a side-view mirror.

What is vigilance mirror?

Vigilance mirror is made of convex mirror because convex mirror shows large field of view. Image formed in the convex mirror is small in the size and closer. So we can see clear image.

Which type of mirror is used in street lights?

Convex mirror

Which mirror is used for safety mirror in shopping malls?

convex mirrors

Convex Security Mirrors



It is this wide-angle field of view which makes convex mirrors highly suitable for security applications in shops and retail premises.