while determining focal length of a concave mirror, a student obtain the image of a distant tree on the screen. write the characteristics of the image
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Answers
Answer:
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Explanation:
Theory
A concave mirror, like a plane mirror, obeys the laws of reflection of light.
Rays of light from object - The rays of light coming from a distant object e.g. sun or a distant building can be considered to be parallel to each other.
When these parallel rays of light fall on a concave mirror along its axis, reflect and meet at a point in front of the mirror, which is called as Principal focus of the mirror.
A real, inverted and very small image size is formed at the focus of the mirror.
Focal Length - The distance between the pole P of the concave mirror and the focus F is the focal length of the concave mirror.
Thus, the focal length of a concave mirror can be estimated by obtaining a 'Real image' of a distant object at its focus, as shown in the figure.
Answer:
while determining focal length of a concave mirror, a student obtain the image of a distant tree on the screen. write the characteristics of the image
