Properties of Solids & Liquids-Heat Transfer [NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Physics]: Questions 1 - 4 of 46

Choose Programs:

📹 Video Course 2024 (8 Lectures [3 hrs : 4 mins]): Offline Support

Rs. 100.00 -OR-

1 Month Validity (Multiple Devices)

Preview All LecturesDetails

⏳ 🎯 Online Tests (5 Tests [50 questions each]): NTA Pattern, Analytics & Explanations

Rs. 500.00 -OR-

3 Year Validity (Multiple Devices)

Sample TestsDetailsSee Demo

🎓 Study Material (575 Notes): 2024-2025 Syllabus

Rs. 650.00 -OR-

3 Year Validity (Multiple Devices)

Topic-wise Notes & SampleDetails

🎯 5119 MCQs (& PYQs) with Full Explanations (2024-2025 Exam)

Rs. 750.00 -OR-

3 Year Validity (Multiple Devices)

CoverageDetailsSample Explanation

Help me Choose & Register (Watch Video) Already Subscribed?

Question 1

Question MCQ▾

A wall is made up of two layers A and B. The thickness of the two layers is the same, but materials are different. The thermal conductivity of A is double than that of B. In thermal equilibrium the temperature difference between the two ends is 36°C. Then the difference of temperature at the two surfaces of A will be

Choices

Choice (4)Response

a.

12°C

b.

6°C

c.

18°C

d.

24°C

Edit

Question 2

Question MCQ▾

While measuring the thermal conductivity of a liquid, we keep the upper part hot and lower part cool, so that

Choices

Choice (4)Response

a.

Heat conduction is easier downwards

b.

It is easier and more convenient to do so

c.

Convection may be stopped

d.

Radiation may be stopped

Edit

Question 3

Question MCQ▾

Four rods of identical cross-sectional area and made from the same metal form the sides of square. The temperature of two diagonally opposite points are T and √ 2T respectively in the steady state. Assuming that only heat conduction takes place, what will be the temperature difference between other two points

Choices

Choice (4)Response

a.

b.

c.

0

d.

All of the above

Edit

Question 4

Question Assertion-Reason▾

Assertion(Ꭺ)

The absorbance of a perfect black body is unity.

Reason(Ꭱ)

A perfect black body when heated emits radiations of all possible wavelengths at that temperature.

Choices

Choice (4)Response

a.

Ꭺ is false but Ꭱ is true

b.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

c.

Both Ꭺ and Ꭱ are false

d.

Ꭺ is true but Ꭱ is false

Edit