# NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1447 - 1450 of 2320

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## Question number: 1447

» Properties of Solids & Liquids » Heat Transfer » Conduction

Edit
Assertion-Reason▾

### Assertion (Ꭺ)

The equivalent thermal conductivity of two plates of same thickness in contact (series) is less than the smaller value of thermal conductivity.

### Reason (Ꭱ)

For two plates of equal thickness in contact (series) the equivalent thermal conductivity is given by

### Choices

Choice (4)Response

a.

Ꭺ is false but Ꭱ is true

b.

Ꭺ is true but Ꭱ is false

c.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

d.

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

## Question number: 1448

Edit
MCQ▾

### Question

An ideal gas expands in such a manner that its pressure and volume can be related by equation PV 2 = constant. During this process, the gas is

### Choices

Choice (4)Response

a.

Heated

b.

First heated and then cooled

c.

Cooled

d.

Neither heated nor cooled

## Question number: 1449

Edit
MCQ▾

### Question

The volume of a solid rubber ball when it is carried from the surface to the bottom of a 200 m deep lake decreases by 0.1 %. The value for bulk modulus of elasticity for rubber will be

### Choices

Choice (4)Response

a.

2 × l0 9 Pa

b.

2 × l0 4 Pa

c.

2 × 10 -4 Pa

d.

2 × l0 6 Pa

## Question number: 1450

Edit
MCQ▾

### Question

The ratio of wavelength of deuteron & proton accelerated by an equal potential is,

### Choices

Choice (4)Response

a.

b.

c.

d.

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