NCERT Solutions For Class 11 Physics Chapter 11: Thermal Properties of Matter

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NCERT Solutions for Class 11 Physics Chapter 11 Thermal Properties of Matter are given in the article. The matter is the one due to which a matter exhibits heat conductivity or it is the property that decides the nature of the matter in the presence of heat. Thus, thermal properties are exhibited by objects when heat passes through them. Temperature is one of the physical properties of matter.

Class 11 Physics Chapter 11 Thermal Properties of Matter belongs to Unit 7 Properties of Bulk Matter which along with Unit 8 and Unit 9 has a weightage of 20 marks. NCERT Solutions for Chapter 11 Class 11 Physics covers concepts of specific heat capacity, Latent heat formula, and Blackbody Radiation.

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NCERT Solutions for Class 11 Physics Chapter 11

Class 11 Physics Chapter 11 – Concepts Covered

The thermal energy of a body is the quantity of heat that is required to raise the temperature of the whole body by a unit degree. If Q is the amount of heat that’s needed to produce a temperature change (Δt), then the thermal capacity of the substance is given as:

$S = {Q \over \bigtriangleup t}$

The Specific Heat Capacity of a substance is the amount of heat that is required to raise the temperature of a unit mass of a substance by 1° C.

$S = {1 \over m} {Q \over \bigtriangleup t}$

Calorimetry is concerned with the measurement of heat.

From the law of energy conservation: Heat gained by one body = heat lost by the other

The Basic Heat Formula: The heat Q that is required to raise the temperature of a substance with mass m of specific heat capacity s through t degrees is given by

Q = m x S x t

Newton’s law of cooling states that the rate of loss of heat in a body is proportional to the difference in temperature of the body and its surroundings provided that the difference in temperature is small and is not more than 40° C.

${dT \over dt} = -K(T-T_s)$

The negative sign implies that as time passes, the temperature decreases.

Class 11 Physics Chapter 11 Related Guides:

Specific Heat Capacity	Change of state	Latent Heat
Heat Transfer	Wien’s Displacement Law	Heat Capacity Formula
Thermal Expansion	Thermal Conductivity of Copper	Regelation

Class 11 Physics Study Guides:

NCERT Solutions for Class 11 Physics	Physics Formula	Physics Study Notes
Difference between in Physics	Relation between articles in Physics	SI Units in Physics
Derivations in Physics	Physics Constants	Class 11 Physics Notes

CBSE CLASS XII Related Questions

1.
A system of two conductors is placed in air and they have net charge of $ +80 \, \mu C $ and $ -80 \, \mu C $ which causes a potential difference of 16 V between them.
(1) Find the capacitance of the system.
(2) If the air between the capacitor is replaced by a dielectric medium of dielectric constant 3, what will be the potential difference between the two conductors?
(3) If the charges on two conductors are changed to +160µC and −160µC, will the capacitance of the system change? Give reason for your answer.

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2.
(a) Consider the so-called ‘D-T reaction’ (Deuterium-Tritium reaction).
In a thermonuclear fusion reactor, the following nuclear reaction occurs: \[ \ ^{2}_1 \text{H} + \ ^{3}_1 \text{H} \longrightarrow \ ^{4}_2 \text{He} + \ ^{1}_0 \text{n} + Q \] Find the amount of energy released in the reaction.
% Given data Given:
$ m\left(^{2}_1 \text{H}\right) = 2.014102 \, \text{u} $
$ m\left(^{3}_1 \text{H}\right) = 3.016049 \, \text{u} $
$ m\left(^{4}_2 \text{He}\right) = 4.002603 \, \text{u} $
$ m\left(^{1}_0 \text{n}\right) = 1.008665 \, \text{u} $
$ 1 \, \text{u} = 931 \, \text{MeV}/c^2 $

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3.
In the circuit, three ideal cells of e.m.f. $ V $, $ V $, and $ 2V $ are connected to a resistor of resistance $ R $, a capacitor of capacitance $ C $, and another resistor of resistance $ 2R $ as shown in the figure. In the steady state, find (i) the potential difference between P and Q, (ii) the potential difference across capacitor C.

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4.
Write the mathematical forms of three postulates of Bohr’s theory of the hydrogen atom. Using them prove that, for an electron revolving in the $ n $-th orbit,
(a) the radius of the orbit is proportional to $ n^2 $, and
(b) the total energy of the atom is proportional to $ \frac{1}{n^2} $.

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5.
A rectangular glass slab ABCD (refractive index 1.5) is surrounded by a transparent liquid (refractive index 1.25) as shown in the figure. A ray of light is incident on face AB at an angle $i$ such that it is refracted out grazing the face AD. Find the value of angle $i$.
$A rectangular glass slab ABCD (refractive index 1.5)$

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6.
The ends of six wires, each of resistance R (= 10 $\Omega$) are joined as shown in the figure. The points A and B of the arrangement are connected in a circuit. Find the value of the effective resistance offered by it to the circuit.

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NCERT Solutions For Class 11 Physics Chapter 11: Thermal Properties of Matter

NCERT Solutions for Class 11 Physics Chapter 11

Class 11 Physics Chapter 11 – Concepts Covered

CBSE CLASS XII Related Questions

6.
The ends of six wires, each of resistance R (= 10 \(\Omega\)) are joined as shown in the figure. The points A and B of the arrangement are connected in a circuit. Find the value of the effective resistance offered by it to the circuit.

Similar Physics Concepts

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NCERT Solutions For Class 11 Physics Chapter 11: Thermal Properties of Matter

NCERT Solutions for Class 11 Physics Chapter 11

Class 11 Physics Chapter 11 – Concepts Covered

CBSE CLASS XII Related Questions

5.A rectangular glass slab ABCD (refractive index 1.5) is surrounded by a transparent liquid (refractive index 1.25) as shown in the figure. A ray of light is incident on face AB at an angle \(i\) such that it is refracted out grazing the face AD. Find the value of angle \(i\).

6.The ends of six wires, each of resistance R (= 10 \(\Omega\)) are joined as shown in the figure. The points A and B of the arrangement are connected in a circuit. Find the value of the effective resistance offered by it to the circuit.

Similar Physics Concepts

Comments

SUBSCRIBE TO OUR NEWS LETTER

6.
The ends of six wires, each of resistance R (= 10 \(\Omega\)) are joined as shown in the figure. The points A and B of the arrangement are connected in a circuit. Find the value of the effective resistance offered by it to the circuit.