Question

Assertion: When an object explodes in to two equal fragments, they fly off with same speed but in opposite direction Reason: As law of conservation of linear momentum, total momentum of the object remains cosntant
[a] Both A and R are true and R isthe correct explanation for A

[b] Both A and R are true but R is not the correct explanation of A

]c] A is true but R is false

[d] A is false and R is also false​

Answer 1

Answer:

A magnesium ribbon should be cleaned before burning in air because magnesium when exposed to air reacts with oxygen which leads to the formation of magnesium oxide on the surface of the magnesium ribbon.