Complete Solutions and Summary of Footprints without Feet - NCERT Class 10, Footprints without Feet, Chapter 5 - Summary, Questions, Answers, Extra Questions...

The idea of becoming invisible seems fascinating, as it would allow one to move around unnoticed and observe situations without being detected. The advantages might include escaping from danger, gathering information without interference, or experiencing privacy. However, the disadvantages could outweigh the benefits—living invisibly would create a sense of isolation, and the temptation to misuse this power for selfish reasons could lead to moral dilemmas. Additionally, being invisible could make it difficult to interact with others and maintain normal relationships.

Yes, there are invisible forces around us, such as magnetism, gravity, and electricity. Additionally, there are aspects of matter, such as atoms, molecules, and air, that are not visible to the naked eye. If we could see these forces, the world might appear chaotic and overwhelming, as we would be constantly aware of the energy and particles moving around us. It could be both fascinating and disorienting to observe the invisible workings of nature on a constant basis.

Glass and water are transparent because light waves pass through them with minimal scattering. The atoms in these materials do not absorb the light in the visible spectrum, allowing the light to pass through. Scientifically, making a human invisible would require altering the way light interacts with the human body—either by bending light around the person or by making the body’s atoms transparent like glass. While it is still speculative, advancements in technology, such as cloaking devices, suggest that invisibility may one day become possible. Science fiction has often predicted technological advancements that later become reality, so the idea is not entirely implausible.