If the object is at the focus of the concave mirror, the size of the image formed is
Which kind of a mirror is used to see the enlarged image of the object ?
Concave mirrors can form enlarged image of the object. Therefore, they are used by the dentist to see the enlarged image of the patient's teeth. Convex mirror forms diminished and upright image of the object.
A ray of light, which is parallel to the principal axis of the concave mirror, after reflection passes through the
An incident ray which passes through the focus of the mirror is reflected parallel to the principal axis. An incident ray which passes through the centre of curvature of the mirror is reflected back along its own path (since it is normally incident on the mirror).
A big shinny spoon is a good example of
The curved shining surface of a spoon acts as a mirror. The most common example of a curved mirror is a spherical mirror.
A ray of light is reflected by the pole of a concave mirror at an angle of 80o. The angle of incidence will be
A ray of light passing through the centre of curvature of a spherical mirror, after reflection passes through
A ray of light passing through the centre of curvature of a concave mirror is reflected back along the same path because it strikes the concave mirror at right angles to it's surface due to which the angle of incidence and angle of reflection both are 0°
The size of the image formed by the convex mirror is
For spherical mirrors
The nature of the image formed by the convex mirror is always
A student obtained a sharp image of a burning candle, placed at the farther end of a laboratory table, on a screen using a concave mirror. For getting a better value of focal length of the mirror, what should the student do ?
On increasing the image distance, the object distance decreases. So, the mirror-screen distance should be decreased. That is, the mirror should be moved towards the screen.
In order to get a diminished and virtual image, the object can be placed anywhere in front of a:
When an object is at infinity from a concave mirror, the image formed is
If the image formed by a concave mirror is observed to be virtual, erect and larger than the object then the position of the object will be
After reflection through a concave mirror, rays of light
When rays of light passes through a concave mirror it converges and meet at a point in the principal axis called principal focus. And also concave mirror is a converging mirror that why rays of light meet.
To determine focal length of a concave mirror a student obtains the image of a well lit distant object on a screen. To determine the focal length of the given concave mirror he needs to measure the distance between:
The distance between mirror and the screen will give the focal length of the mirror as the mirror focuses the light on the screen.
Which is the wrong statement out of the following ?
An inverted image can be seen by using a convex mirror under what circumstances ?
The image formed by a convex mirror is always virtual and erect irrespective of the position of the object.
A ray of light passes through the focus of the mirror. After reflection, it
A ray which is parallel to the principal axis after reflection from mirror will always pass through principal focus. The distance between principal focus and pole is known as focal length and is half the centre of curvature of the mirror.
A student obtained a sharp image of the grills of a window on a screen using a concave mirror. His teacher remarked that for getting better results a well lit distance object (preferably the sun) should be focussed on the screen. What should be done for this purpose ?
When the image distance increases, object distance decreases. Thus, distance between the mirror and screen will decrease. So, the mirror should be moved towards the screen.
In a concave mirror, the image is inverted and same size as the object when the object is placed at