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प्रश्न
If an object is at infinity (very large distance) in front of a concave mirror, where is the image formed?
उत्तर
If an object is at infinity and in front of a concave mirror, the image is formed at the focus.
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संबंधित प्रश्न
It is desired to obtain an erect image of an object, using concave mirror of focal length of 12 cm.
Will the image be smaller or larger than the object? Draw ray diagram to show the formation of image in this case.
A student obtained a sharp image of a candle flame placed at the distant end of the laboratory table on a screen using a concave mirror to determine its focal length. The teacher suggested him to focus a distant building, about 1 km away from the laboratory, for getting more correct value of the focal length. In order to focus the distant building on the same screen, the student should slightly move the
(a) mirror away from the screen
(b) screen away from the mirror
(c) screen towards the mirror
(d) screen towards the building
Name the type of mirror used in the following situation:
Headlights of a car
Support your answer with reason.
Define (i) principal focus of a concave mirror, and (ii) focal length of a concave mirror.
According to the "New Cartesian Singh Convention" for mirrors, what sign has been given to the focal length of:
a concave mirror?
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. Calculate the focal length of the mirror.
Name the mirror which can give:
an erect and enlarged image of an object.
A student has to trace the path of a ray of light passing through a rectangular glass slab for four different values of angle of incidence.
(a) Write two important precautions for this experiment.
(b) List two conclusions the student will draw based on his experiment.
In which of the following, the image of an object placed at infinity will be highly diminished and point sized?
For a real object, which of the following can produce a real image?
