Properties of Solids & Liquids (NEET Physics): Questions 172 - 174 of 188

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 2099 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 550.00 or

Question number: 172

» Properties of Solids & Liquids » Specific Heat Capacity

MCQ▾

Question

Heat is supplied to a certain homogenous sample of matter, at a uniform rate. Its temperature is plotted against time, as shown. Which of the following conclusions can be drawn?

Temperature vs time graph - homogenous sample of matter

Temperature vs Time Graph - Homogenous Sample of Matter

In above fig we show that the graph of temp vs time which describe effect of heat on certain homogenous matter.

(1) Its specific heat capacity is greater in the liquid state than in the solid state

(2) Its latent heat of vaporization is greater than its latent heat of fusion

(3) Its specific heat capacity is greater in the solid state than in the liquid state

(4) Its latent heat of vaporization is smaller than its latent heat or fusion

Select the correct answers and mark it according to the following codes:

Choices

Choice (4) Response
a.

1, 2 and 3 are correct

b.

1 and 2 are correct

c.

2 and 4 are correct

d.

1 and 3 are correct

Question number: 173

» Properties of Solids & Liquids » Heat Transfer » Conduction

MCQ▾

Question

Three rods of the same dimension have thermal conductivities 3K, 2K and K. They are arranged as shown in fig. with their ends at 100°C, 50°C and 20°C. The temperature of their junction is

Three rod of same dimension

Three Rod of Same Dimension

In above figure it is shown that three rod of same dimension have thermal conductivities 3K, 2K and K.

Choices

Choice (4) Response
a.

70°C

b.

60°C

c.

50°C

d.

35°C

Question number: 174

» Properties of Solids & Liquids » Thermal Expansion

MCQ▾

Question

Flask is filled up to a mark with 40 cc of mercury at 20°C. If the flask and contents are heated to 30°C, how much mercury will be above the mark? (α for glass is 9 × 10 -6 /°C and coefficient of real expansion of mercury is 180 × 10 -6 /°C

Choices

Choice (4) Response
a.

0.0708 cc

b.

0.0005

c.

0.8500 cc

d.

0.0153 cc

Sign In