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प्रश्न
The image formed by a concave mirror is of the same size as the object, if the object is placed
विकल्प
at the focus
between the pole and focus
between the focus and centre of curvature
at the centre of curvature.
उत्तर
at the centre of curvature.
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संबंधित प्रश्न
A student has obtained the image of a distant object with a concave mirror to determine its focal length. If he has selected a well-illuminated red building as object, which of the following correctly describes the features of the image formed?
(A) Virtual, inverted and diminished image in red shade
(B) Real, erect and diminished image in pink shade
(C) Real, inverted and diminished image in red shade
(D) Virtual, erect and enlarged image in red shade
Find the focal length of a concave mirror whose radius of curvature is 32 cm.
An object is placed at the following distances from a concave mirror of focal length 15 cm, turn by turn:
(a) 35 cm
(b) 30 cm
(c) 20 cm
(d) 10 cm
Which position of the object will produce:
(i) a magnified real image?
(ii) a magnified virtual image?
(iii) a diminished real image?
(iv) an image of same size as the object?
An object is placed just outside the principal focus of concave mirror. Draw a ray diagram to show how the image is formed, and describe its size, position and nature.
If the object is moved further away from the mirror, what changes are there in the position and size of the image?
Study the following ray diagram and list two mistakes committed by the student while tracing it. Rectify these mistakes by drawing the correct ray diagram to show the real position and size of the image corresponding to the position of the object AB.
Explain the images formed by a concave mirror.
An object at a distance of 30 cm from a
concave mirror gets its image at the same point. The focal length of the mirror is ______.
An image formed by a lens is erect. Such an image could be formed by a
The ENT doctor uses a ______.
