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This is a multiple choice answer as classified in NCERT Exemplar

(b) Work done ABCD = area of rectangle ABCDA

= AB $\times BC$ = (3V_o-V_o) $\times$ (2p_o-p_o)

= 2V_{0 $\times$} P_o= 2p_oV_o

And work done by the gas =- 2p_oV_o

This is a Short Answer Type Questions as classified in NCERT Exemplar

Explanation- Alloys are used for making standard resistance coil because they have low temperature coefficient of resistance with less temperature sensitivity. The alloys also have high resistivity and hence high resistance, because for given length and cross-section area of conductor .

This is a multiple choice answer as classified in NCERT Exemplar

(c) As we know PV =constant

Hence we can say that gas is going through an isothermal process.

Clearly from the graph that between process 1 and 2 temperature is constant and the gas expands and pressure decreases. So density of 2 is less than 1 so option ii

This is a Short Answer Type Questions as classified in NCERT Exemplar

Explanation- For the selection of metal for wiring in home the main criterion are: the availability, conductivity and the cost of the metal. The Cu wires or Al wires are used  for wiring in the home. The main considerations are involved in this process are cost of metal and good conductivity of metal.

Yes, TCSC offers good placements to its students. The highest package offered during placements 2025 was INR 7.5 LPA. Earlier, the placement highlights of the past three years at TCSC are press

Note: The median package data is sourced from the NIRF report 2025

This is a Short Answer Type Questions as classified in NCERT Exemplar

Explanation- Metallic strips have negligible resistance and need not to be counted in the length l₁, of the null point of potentiometer. That's why the thick metallic strips are used in potentiometer. It is for the convenience of experimenter as he measures only their lengths along the straight segments each of lengths 1 m.

The list of top recruiters that visited the campus during Thakur College of Science and Commerce placements 2025 is presented below:

This is a multiple choice answer as classified in NCERT Exemplar

(a) Amount of sweat evaporated /minute = $\frac{\frac{sweatproduced}{minute}}{numberofcaloriesrequiredforevaporation\frac{}{kg}}$

 = $\frac{14.5\times {10}^3}{580\times {10}^3}=0.25kg$

Yes, Nazareth College of Arts and Science generally offers direct admission to the BCom programme based on merit in the Class 12 examination. There is no entrance test requirement. However, candidates must meet the minimum eligibility criteria and complete the application process within the specified timeline.

The number of students placed during Thakur College of Science and Commerce placements over the past three years are presented below:

The highest package offered during Thakur College of Science and Commerce placements 2025 was INR 7.5 LPA.

There are a total of 340 seats for BSc courses at the Kuriakose Elias College affiliated with MG University. Candidates are admitted as per the sanctioned seat intake. It must be noted that the seat count mentioned here is as per the official website/ sanctioning body. It is however, still subject to changes and hence, is indicative.

The highest package offered during Thakur College of Science and Commerce placements 2025 was INR 7.5 LPA. Earlier, the placement highlights of the past three years at TCSC are press

Note: The median package data is sourced from the NIRF report 2025

This is a multiple choice answer as classified in NCERT Exemplar

(c) For the curve 1 volume is constant so it is isochoric process. But in curve 2 and 3 curve 2 is steeper so 2 is adiabatic and 3 is isothermal.

BCom fee structure at Nazareth College of Arts and Science includes tuition and may involve additional charges like refundable security deposits. Students are advised to check the official college sources for accurate and updated fee information. The fee details are subject to change and should be reviewed before applying.

Students seeking admission to the BCom programme at Nazareth College of Arts and Science must have passed Class 12 from a recognised board with at least 40% aggregate marks. Fulfilling this requirement is a basic eligibility condition for applying to these courses.

This is a short answer type question as classified in NCERT Exemplar

process 1 isochoric and process 2 is isothermal .

Since, work done = area under P-V curve . here area under the pV curve 1 is more . so work done is more when the gas expands in isochoric process.