Explanation:
Black holes are the most massive and dense objects in the whole universe. They are peculiar objects. The gravity near black hole is so strong that even light can not escape it. That is why the name: Black hole. It is formed after the death of a supermassive star. All the mass of the star is condensed in to a very small area having a very string gravity. Imagine the Sun squeezed in to an object of diameter of just 3 km!
You can define it as a dead super massive star from which nothing can escape.
<em><u>Given</u></em><em> </em> :
- <em>O</em><em>bject </em><em>position</em><em> </em>( u ) = - 36 cm
- <em>focal</em><em> </em><em>length</em><em> </em>( f ) = - 16 cm
- <em>image position</em><em> </em>( v ) = ?
now, we know
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So<em><u>, image position</u></em> = 28.8 cm, at same side of object .
The water has an irregular surface so if the light rays fall on top then it will reflect oppositely or in some cases may refract, so the fish will seem a bit smaller or further or closer in anyway, example if u put a straw in water it looks bent but is it ? nope. So the main reason is that it refracts which makes the accuracy lesser which make it difficult.
It’s 3 guaranteed because if you flick the card horizontal it’s going to bend the laws
