An illuminated object is placed on the principal axis of a converging lens so that a real image is formed on the other side of the lens. If the object is shifted a little,
(a) the image will be shifted simultaneously with the object
(b) the image will be shifted a little later than the object
(c) the image will be shifted a little earlier than the object
(d) the image will not shift
Answers
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Explanation:
an object is moved with a constant speed (V) towards a convex from infinity, the image will move slower in the beginning and then faster
. According to question, object is shifted a little (beginning of shift). Hence, the image will move slower.
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The correct answer is (b), which shows that there will be shifting of the image a little later than the object.
Explanation:
- From a source, when the light rays emit, they must cover few optical distance to create a source’s image on the other side of the lens.
- Thus, when there is a shifting of light source on the principal axis by some distance, then the emitting light rays from the new source position take some time to form a lifted object’s image on the lens’ other side.
- Yet, this postponement is very small due to the fact that the light’s speed has a very bigger value.
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