By observing steel vessels and different images in time, Ramu a third class student asked some questions to his elder sister santha. What may be those questions?

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Why do some ships (vessels) with protruding hulls have our image on them?

Why are some vessels that extend inward invisible to our image?

Do vessels that swell inside or externally act as mirrors?

All of the above

answer is D.

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Detailed Solution

Concept: A substance with the ability to reflect light is steel. It, therefore, acts like a mirror. A steel jar will be transformed into any kind of spherical mirror if its shape is irregular.
By looking at the steel containers and the various photos they contained, V became inspired and posed the following query to Santh:
1) Why do some ships (vessels) with protruding hulls have our image on them?
2) Why are some vessels that extend inward invisible to our image?
3) Do vessels that swell inside or externally act as mirrors?
4) Describe the distinction between vessels that enlarge inside and outward.
5) What kind of vessel is a mirror
Hence, option 4 is correct.

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Result Producing online coaching for JEE/NEET of south India

Largest All India Test Series for JEE/NEET

Best Online Course for IIT JEE

Best Online Course for NEET

Best Online Course for CBSE