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
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TN 11th Tamil மொழி கலை -செய்யுள் - ஒவ்வொரு புல்லையும் Important Questions And Answers Study Material - QB365 Set A
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TN 11th Tamil பீடு பெற நில் - இலக்கணம் - பகுபத உறுப்புகள் Important Questions And Answers Study Material - QB365 Set A
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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: 10/11/2020
11th Standard Physics Heat and Thermodynamics English Medium Free Online Test One Mark Questions 2020 - 2021
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.
A temperature difference of 25°C is equivalent to a temperature difference of ______________.
25°F
45°F
67°F
77°F
2.
An air bubble doubles in radius on rising from the bottom of a lake to its surface. If the atmospheric pressure is equal to that of a column of water of height H, the depth of lake is ____________.
H
2H
7H
8H
3.
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.
4.
An iron tyre is to be fitted on a wooden wheel 0.1 in diameter. The diameter of the tyre is 6 mm smaller than that of the wheel. The tyre should be heated by a temperature of (coefficient of volume expansion of iron is 3.6\(\times\)10-5/°C) ________
167°C
334°C
500oC
1000oC
5.
When water is heated from 0oC to 0oC, its volume ________.
decreases
increases
first increase and then decrease
first decreases and then increases
6.
The length of a metal rod at 0°C is 0.5m. When it is heated, its length increases by 2.7 mm. The final temperature of the rod is (coefficient of linear expansion of the metal = 90 x 10-6/°C) _______.
20°C
30°C
40°C
60°C
7.
A solid metal ball has a spherical cavity. If the ball is heated, the volume of the cavity will _______________.
increase
decrease
remain unaffected
remain unaffected but the shape of the cavity will change
8.
The sum of internal energy (U) and the product of pressure and volume (P.V.) is ______________.
enthalpy
work done
entropy
none
9.
During which of the following process does heat rejection takes place in carnot cycle?
isothermal expansion
adiabatic expansion
isothermal compression
adiabetic compression
10.
In an isothermal process _______________.
there is no change in internal energy
there is no change in temperature
there is no change in enthalpy
all the above
11.
Calculate the work done if temperature is changed from 0°C to 200°C at one atm _____________ [R = 2 cal K-1].
100 cal
200 cal
100 cal
800 cal
12.
Which one is correct?
In an isobaric, \(\triangle\)p = 0
In an isochoric process, \(\triangle\) W = 0
In an isothermal, \(\triangle\)T = 0
In an isothermal process, \(\triangle\)Q = 0
13.
The mean kinetic energy of one mole of gas per degree of freedom (on basis of kinetic theory of gases) is _______________.
\(\frac { 1 }{ 2 } \)kT
\(\frac { 3 }{ 2 } \) kT
\(\frac { 3 }{ 2 } \) RT
\(\frac { 1 }{ 2 } \) RT
14.
Volume - temperature graph at atmospheric pressure for a mono atomic gas (V in m3, Tin °C) is __________________.
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15.
Two thermally insulated vessels 1 & 2 are filled with air at temp (T1, T2), volume (V1, V2 & pressure (P1, P2) If the valve going to the 2 vessels is opened, the temperature on the inside of the vessel at equilibrium will be ______________.
T1 + T2
\(\frac { { T }_{ 1 }+{ T }_{ 2 } }{ 2 } \)
\(\frac { { T }_{ 1 }{ T }_{ 2 }\left( { P }_{ 1 }{ V }_{ 1 }+{ P }_{ 2 }{ V }_{ 2 } \right) }{ { P }_{ 1 }{ V }_{ 1 }{ T }_{ 2 }+{ P }_{ 2 }{ V }_{ 2 }{ T }_{ 1 } } \)
\(\frac { { T }_{ 1 }{ T }_{ 2 }\left( { P }_{ 1 }{ V }_{ 1 }+{ P }_{ 2 }{ V }_{ 2 } \right) }{ { P }_{ 1 }{ V }_{ 1 }{ T }_{ 1 }+{ P }_{ 2 }{ V }_{ 2 }{ T }_{ 2 } } \)
16.
When an ideal diatomic gas is heated at constant pressure, the fraction of the heat energy applied which increases the internal energy of gas is _____________.
\(\frac { 2 }{ 5 } \)
\(\frac { 3 }{ 5 } \)
\(\frac { 3 }{ 7 } \)
\(\frac { 5 }{ 7 } \)
17.
In an isochoric process, we have
W = 0
Q = 0
ΔU = 0
ΔT = 0
18.
A distant star emits radiation with maximum intensity at 350 nm. The temperature of the star is
8280 K
5000 K
7260 K
9044 K
19.
An ideal gas is taken from (Pi, Vi) to (Pf, Vf) in three different ways. Identify the process in which the work done on the gas the most.
Process A
Process B
Process C
Equal work is done in Process A, B & C
20.
In hot summer after a bath, the body’s
internal energy decreases
internal energy increases
heat decreases
no change in internal energy and heat
1.
(b)
45°F
2.
(c)
7H
3.
(d)
Quarter the pressure at constant temperature.
4.
(a)
167°C
5.
(d)
first decreases and then increases
6.
(d)
60°C
7.
(a)
increase
8.
(a)
enthalpy
9.
(c)
isothermal compression
10.
(d)
all the above
11.
(c)
100 cal
12.
(d)
In an isothermal process, \(\triangle\)Q = 0
13.
(d)
\(\frac { 1 }{ 2 } \) RT
14.
(c)
15.
(a)
T1 + T2
16.
(d)
\(\frac { 5 }{ 7 } \)
17.
Work done in an isochoric process is zero.
18.
\(\lambda_{m} T =\mathrm{b} \)
\(\therefore T =\frac{2.898 \times 10^{-3}}{350 \times 10^{-9}}\)
\(\mathrm{~T} =0.00828 \times 10^{6} \)
\(=8280 \mathrm{~K} \)
19.
When work is done on the gas, compression takes place. Pf will be increased and remains constant.
Therefore Process B
20.
(a)
internal energy decreases
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
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