Give reasons :
While pulling a bucket from a well , the bucket full of water immersed fully in water appears to weigh less than when it has been pulled out of water . Why ?

Question based on paragraph : A boy pushed his toy car on a table . The car moved ahead and stopped after travelling a certain distance . But when he kept on pushing his car , the car started moving with a uniform velocity . The boy later decided to do some adventurous activity while playing with his car , so he launched his toy car from a platform to a bucket filled with water as soon as the car landed inside the bucket , the water from the bucket splashed out and the boy enjoyed his new game .: Why did the toy car stop after travelling a certain distance ?

A bucket completely full of water is 46 cm deep. A coin kept at the bucket when viewed normally will appear at (mu_w =4/5)

Question based on paragraph : A boy pushed his toy car on a table . The car moved ahead and stopped after travelling a certain distance . But when he kept on pushing his car , the car started moving with a uniform velocity . The boy later decided to do some adventurous activity while playing with his car , so he launched his toy car from a platform to a bucket filled with water as soon as the car landed inside the bucket , the water from the bucket splashed out and the boy enjoyed his new game .: What is the reason for splashing of water out from the bucket ?

Question based on paragraph : A boy pushed his toy car on a table . The car moved ahead and stopped after travelling a certain distance . But when he kept on pushing his car , the car started moving with a uniform velocity . The boy later decided to do some adventurous activity while playing with his car , so he launched his toy car from a platform to a bucket filled with water as soon as the car landed inside the bucket , the water from the bucket splashed out and the boy enjoyed his new game .: Which type of force was applied by the boy when he kept on pushing the car ?

Give reasons : Why does your mother put folded cloth strips soaked in cold water on your forehead when you have high fever ?

A bucket completely full of water is 46 cm deep. A coin kept at the bucket when viewed normally will appearat (n_W = frac(4)(3))

A clown is exhibiting a magic trick on the streets wherein he rotates a bucket in a vertical plane without allowing the water in it to spill out. Here, clearly the clown uses centrifugal force to balance the weight of water . This will be possible, when

Give scientific reasons When a pencil is partly immersed in water and held in a slanting position, it appears to be bent at the boundary separating water and air.

Give scientific reasons A coin kept in a bowl is not visible when seen from one side. But, when water is poured in the bowl , the coin becomes visible.