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Published on: 13/05/2022
QB365 provides detailed and simple solution for every Book back Questions in class 11 Physics Subject. It will helps to get more idea about question pattern in every book back questions with solution.
latest Book back QuestionsDownload 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.
In a horizontal pipe of non-uniform cross section, water flows with a velocity of 1 ms-1 at a point where the diameter of the pipe is 20 cm. The velocity of water (1.5 m s-1) at a point where the diameter of the pipe is (in cm)
8
16
24
32
2.
The following four wires are made of the same material. Which of these will have the largest extension when the same tension is applied?
length = 200 cm, diameter = 0.5 mm
length= 200 cm, diameter = 1 mm
length = 200 cm, diameter = 2 mm
length= 200 cm, diameter = 3 m
3.
Copper of fixed volume V is drawn into a wire of length l. When this wire is subjected to a constant force F, the extension produced in the wire is Δl. If Y represents the Young’s modulus, then which of the following graphs is a straight line?
\(\Delta\)l verses V
\(\Delta\)l verses Y
\(\Delta\)l verses F
\(\Delta\)l verses \(\frac{1}{l}\)
4.
Which of the following is not a scalar?
viscosity
surface tension
pressure
stress
5.
With an increase in temperature, the viscosity of liquid and gas, respectively will
increase and increase
increase and decrease
decrease and increase
decrease and decrease
1.
(b)
16
2.
\(\mathrm{Y} =\frac{F / A}{\Delta l / l}=\frac{F l}{A \Delta l} \)
\(=\Delta l=\frac{F l}{A Y}
\)
\(\Delta l \text { is most when } l=200 \mathrm{~cm} \mathrm{~d}=0.5 \mathrm{~mm}\)
3.
\(\Delta l \text { verses } \mathrm{E}\)
\(\text { Strain } \propto \text { Stress }\)
Hooke's law is followed
4.
(d)
stress
5.
(c)
decrease and increase
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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
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Tamilnadu Stateboard Standards
