Qualification > Sciences
ALL CIE PHYSICS DOUBTS HERE !!!
astarmathsandphysics:
the gold atom question answered in attachment
astarmathsandphysics:
the manometer questions
ashwinkandel:
I have 5 MCQ's from Past Papers. I am not able to solve these questions. I have attached the answers and questions below. Can someone please give me explanation for each question.
astarmathsandphysics:
1st one. If one spring is removed the weight is supported by 2 spring instead of 3 so extension is multiplied by 3/2 . If the weight is doubled then the extension is also doubled so extension is 3x.
astarmathsandphysics:
2nd. If no friction is present the minimum work done will be the increase in graviational potential energy =mgh=50*9.8*1.6 =780J
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