11th Standard Syllabus & Materials
11th Standard
TN 11th Tamil இயற்கை வேளாண்மை,சுற்றுச்சூழல் -செய்யுள் - மனோன்மணீயம் Important Questions And Answers Study Material - QB365 Set A
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TN 11th Tamil என்னுயிர் என்பேன் -துணைப்பாடம் - இசைத்தமிழர் இருவர் Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil மொழி கலை -செய்யுள் - ஒவ்வொரு புல்லையும் Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil பீடு பெற நில் - இலக்கணம் - பகுபத உறுப்புகள் Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil பீடு பெற நில் - துணைப்பாடம் - வாடிவாசல் Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil பீடு பெற நில் - செய்யுள் - குறுந்தொகை Important Questions And Answers Study Material - QB365 Set A
Published on: 09/11/2020
11th Standard Physics English Medium Free Online Test Volume 2 One Mark Questions with Answer Key 2020
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.
Doppler shift in frequency does not depend upon ________.
the actual frequency of the wave
the velocity of the source from the listener
the velocity of the source
the velocity of the observer.
2.
If va, vh, and vm are the speeds of sound in air, hydrogen and a metal at the same temperature, then _______
vh>va>vm
vm>vh>va
vh>vm>va
va>vh>vm
3.
If the amplitude of sound is doubled and the frequency reduced to one-fourth, the intensity will _________.
increase by a factor of 2
decrease by a factor of 2
decrease by a factor of 4
remain unchanged
4.
Ultrasonic waves are those waves which _______.
human beings cannot hear
human beings can hear
have high velocity
have large amplitude
5.
The speed of the wave represented by y =A sin(ωt - kx) is ________.
k/ω
ω/k
ωk
1/ωk
6.
Which of the following functions represent SHM?
I. Y = sin ωt - cos ωt
II. y = sin3t
III. y = 5 cos\(\ \left( \frac { 3\pi }{ 4 } -3\omega t \right) \)
IV. y = 1 + ωt + ω2t2
I and III
I and II
only I
I, II and III
7.
The angular velocity and the amplitude of a simple pendulum are co and a, respectively. The ratio of its kinetic and potential energies at a displacement x from the mean position is ________.
\(\frac { { x }^{ 2 }{ \omega }^{ 2 } }{ { a }^{ 2 }-{ x }^{ 2 }{ \omega }^{ 2 } } \)
\(\frac { { x }^{ 2 } }{ { a }^{ 2 }-{ x }^{ 2 } } \)
\(\frac { { { a }^{ 2 }-x }^{ 2 }{ \omega }^{ 2 } }{ { x }^{ 2 }{ \omega }^{ 2 } } \)
\(\frac { { a }^{ 2 }-{ x }^{ 2 } }{ { x }^{ 2 } } \)
8.
A simple harmonic oscillator has a period of 0.01 s and an amplitude of 0.2 m. The magnitude of the velocity in m/s at the centre of oscillation is _________
20\(\pi\)
40\(\pi\)
60\(\pi\)
80\(\pi\)
9.
During an adiabatic process, if the pressure of an ideal gas is proportional to the cube of its temperature, the ratio \(\gamma \)=\(\frac{C_P}{C_v}\) is_______.
2
\(\frac{4}{3}\)
\(\frac{5}{3}\)
\(\frac{3}{2}\)
10.
An ideal gas is expanding such that PT2 = constant the coefficient of volume expansion of the gas is _____________.
\(\frac{1}{T}\)
\(\frac{2}{T}\)
\(\frac{3}{T}\)
\(\frac{4}{T}\)
11.
Which of the following will make the volume of an ideal gas four times?
double the absolute temperature and double the pressure
Halve the absolute temperature and double the pressure.
Quarter the absolute temperature at constant pressure.
Quarter the pressure at constant temperature.
12.
At critical temperature the surface tension of a liquid ________.
is zero
is the same as that at any other temperature
is infinity
cannot be determined
13.
The weight of a body in air is 100 N. How much will it weight in water, if it displaces 400 cc of water?
90 N
94 N
98 N
None of these
14.
In an adiabatic process, the state of a gas is changed from P1' V1' T1' P2' V2' T2 Which of the following relations is correct?
\({ T }_{ 1 }{ V }_{ 1 }^{ \gamma -1 }={ T }_{ 2 }{ V }_{ 2 }^{ \gamma -1 }\)
\({ P }_{ 1 }{ V }_{ 1 }^{ \gamma -1 }={ P }_{ 2 }{ V }_{ 2 }^{ \gamma -1 }\)
\({ T }_{ 1 }{ P }_{ 1 }^{ \gamma -1 }={ T }_{ 2 }{ P }_{ 2 }^{ \gamma }\)
\({ T }_{ 1 }{ V }_{ 1 }^{ \gamma -1 }={ T }_{ 2 }{ V }_{ 2 }^{ \gamma }\)
15.
The viscous force the relative motion between the adjacent layers of a fluid in motion which one of the following is absolutely fit?
opposes
never affects
facilitates
may effect under certain conditions
16.
Two capillaries of lengths L & 2L and of radius R & 2R are connected in series the net rate of flow of fluid through them will (rate of the flow through singe capillary,\(x=\pi R^{4}/8 \eta L\)) be ____________.
\(\frac{8}{9}\alpha\)
\(\frac{9}{8}\alpha\)
\(\frac{5}{7}\alpha\)
\(\frac{7}{5}\alpha\)
17.
Viscosity is a property of ______________.
liquids only
solid only
solids & liquids only
liquids & gases only
18.
The molar specific heats of an ideal gas at a constant pressure & volume are denoted by Cp&Cv if r =\(\frac{C_{p}}{C_{v}}\) & R the universal gases constant then Cv is equal _____________.
\(\frac{1+r}{1-r}\)
\(\frac{R}{1-r}\)
\(\frac{r-1}{R}\)
rR
19.
The fractional change in wavelength of light coming from a star is 0.014%. What is its velocity?
4.2\(\times\)103 m/s
3.8\(\times\)108 m/s
3.5\(\times\)103 m/s
4.2\(\times\)104 m/s
20.
Kinetic theory ___________.
Correctly explains specific heat capacities of many liquid
Correctly explains specific heat capacities of many gases
Correctly explains specific heat capacities of many solids
Correctly explains specific heat capacities of many super cooled liquid
21.
In the following, what are the quantities which that are conserved?
Linear momentum of planet
Angular momentum of planet
Total energy of planet
Potential energy of a planet
22.
Let y = \(\frac{1}{1+x^2}\) at t = 0 s be the amplitude of the wave propagating in the positive x-direction. At t = 2 s, the amplitude of the wave propagating becomes \(y=\frac{1}{1+(x-2)^{2}}. \) Assume that the shape of the wave does not change during propagation. The velocity of the wave is
0.5m s-1
1.0m s-1
1.5m s-1
2.0m s-1
23.
A spring is connected to a mass m suspended from it and its time period for vertical oscillation is T. The spring is now cut into two equal halves and the same mass is suspended from one of the halves. The period of vertical oscillation is
T'= \(\sqrt{2}\)T
\(T'=\frac { T }{ \sqrt { 2 } } \)
T'=\(\sqrt{2T}\)
\(T'=\sqrt { \frac { T }{ 2 } } \)
24.
In an isochoric process, we have
W = 0
Q = 0
ΔU = 0
ΔT = 0
25.
A certain number of spherical drops of a liquid of radius R coalesce to form a single drop of radius R and volume V. If T is the surface tension of the liquid, then
energy = 4 V T \(\left( \frac { 1 }{ r } -\frac { 1 }{ R } \right) \)is released
energy = 3 V T \(\left( \frac { 1 }{ r } +\frac { 1 }{ R } \right) \)is absorbed
energy = 3 V T \(\left( \frac { 1 }{ r } -\frac { 1 }{ R } \right) \)is released
energy is neither released nor absorbed
1.
(b)
the velocity of the source from the listener
2.
(b)
vm>vh>va
3.
(c)
decrease by a factor of 4
4.
(a)
human beings cannot hear
5.
(b)
ω/k
6.
(a)
I and III
7.
(d)
\(\frac { { a }^{ 2 }-{ x }^{ 2 } }{ { x }^{ 2 } } \)
8.
(b)
40\(\pi\)
9.
(d)
\(\frac{3}{2}\)
10.
(c)
\(\frac{3}{T}\)
11.
(d)
Quarter the pressure at constant temperature.
12.
(a)
is zero
13.
(d)
None of these
14.
(a)
\({ T }_{ 1 }{ V }_{ 1 }^{ \gamma -1 }={ T }_{ 2 }{ V }_{ 2 }^{ \gamma -1 }\)
15.
(a)
opposes
16.
(a)
\(\frac{8}{9}\alpha\)
17.
(d)
liquids & gases only
18.
(b)
\(\frac{R}{1-r}\)
19.
(d)
4.2\(\times\)104 m/s
20.
(b)
Correctly explains specific heat capacities of many gases
21.
(c)
Total energy of planet
22.
Factual information
\(\text { At } \mathrm{t}=0 \text { amplitude } \mathrm{y}=\frac{1}{1+x^{2}}\)
\(\text { At } \mathrm{t}=2 \text { amplitude } \mathrm{y}=\frac{1}{1+(x-2)^{2}}\)
\(\therefore v=\frac{\Delta y}{\Delta t} =\frac{2}{2} =1.0 \mathrm{~ms}^{-1} \)
23.
\(\mathrm{T}=2 \pi \sqrt{\frac{m}{k}}\)
when the spring is cut into two equal halves, than the force constant of each part is 2k. When the mass is suspended from one of the halves, new time period is \(T^{\prime}=2 \pi \sqrt{\frac{m}{2 k}}=\frac{T}{\sqrt{2}}\)
24.
Work done in an isochoric process is zero.
25.
\(n \times \frac{4}{3} \pi r^{3}=\frac{4}{3} \pi R^{3}\)
\(\therefore \text { Energy }=3 V T\left(\frac{1}{r}-\frac{1}{R}\right) \text { is released }\)
11th Standard Syllabus & Materials
11th Standard
TN 11th Tamil பீடு பெற நில் - செய்யுள் - காவடிச்சிந்து Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil பீடு பெற நில் - உரைநடை - மலை இடப்பெயர்கள் : ஓர் ஆய்வு Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil மாமழை போற்றுதும் - துணைப்பாடம் - யானை டாக்டர் Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil மாமழை போற்றுதும் - செய்யுள் - ஐங்குறுநூறு Important Questions And Answers Study Material - QB365 Set A
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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