Physics
The distance (V) of a virtual image formed by a lens of focal length 15 cm never exceeds a certain finite value, then this value will be:
- less than 15 cm
- between 15 cm to 30 cm
- less than or equal equal to 30 cm
- less than or equal to 15 cm
Refraction Lens
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Answer
less than or equal to 15 cm
Reason — A virtual image whose distance never exceeds a fixed finite value is formed by a concave lens. In a concave lens, the image is always virtual and is formed between the optical centre and the principal focus. Hence, the image distance can never be greater than the focal length of the lens.
Therefore, for a lens of focal length 15 cm, the image distance is less than or equal to 15 cm.
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