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Published on: 13/05/2022
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Creative Questions in class 11 Physics Subject. It will helps to get more idea about question pattern in every Creative questions with solution.
Download Tamil Nadu 11th Standard Physics question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Physics Test1.
Why centripetal force cannot do work?
2.
What is the power needed to maintain uniform circular motion?
3.
Two boys of the same weight sit at the opposite ends of a diameter of a rotating circular table. What happens to the speed of rotation if they move nearer to axis of rotation?
4.
A cat is able to land on its feet after a fall. Why?
5.
About which axis the moment of inertia of a body is minimum?
1.
The centripetal force cannot do work on the object since it is always perpendicular to the velocity.
2.
No power is needed to maintain uniform circular motion.
Power required = \(\bar{F}.\bar{v}=F v\cos\theta\)
= \(Fv\cos90°=0\)
3.
The moment of inertia of the system (circular table + two boys) decreases. To conserve angular momentum (L = 100 = constant), the speed of rotation of the circular table increases.
4.
When a cat falls to ground from a height, it stretches its body along with the tail so that its moment of inertia becomes high. Since angular momentum (L = Iω) remain constant, the value of angular speed ω decreases and therefore the cat is able to land on the ground gently.
5.
The moment of inertia of a body is minimum about an axis passing through its centre of mass.
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Tamilnadu Stateboard 11th Standard Subjects
Maths
Commerce
Economics
Biology
Business Maths and Statistics
Accountancy
Computer Science
Physics
Chemistry
Maths
Biology
Economics
Physics
Chemistry
History
Business Maths and Statistics
Computer Science
Accountancy
Computer Applications
History
Computer Technology
Commerce
Computer Applications
Computer Technology
Tamil
English
French
Tamilnadu Stateboard Standards
