# Dual Nature of Matter and Radiation-Black-Body Radiation (AIIMS (All India Institute of Medical Sciences) Physics): Questions 1 - 4 of 5

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 500 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 350.00 or

## Question number: 1

» Dual Nature of Matter and Radiation » Black-Body Radiation

Appeared in Year: 2006

MCQ▾

### Question

Three objects coloured black, gray and white can withstand hostile conditions up to 2800°C. These objects are thrown into a furnace where each of them attains a temperature of 2000°C. Which object will glow brightest?

### Choices

Choice (4) Response

a.

Gray object

b.

The black object

c.

The white object

d.

Question does not provide sufficient data or is vague

## Question number: 2

» Dual Nature of Matter and Radiation » Black-Body Radiation

Appeared in Year: 2003

MCQ▾

### Question

Shown below are the black body radiation curves at temperatures and . Which of the following plots is correct?

[AIIMS, AMU 2002]

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 3

» Dual Nature of Matter and Radiation » Black-Body Radiation

Appeared in Year: 2003

MCQ▾

### Question

A black body, at a temperature of 227°C, radiates heat at a rate of. When its temperature is raised to 727°C, the heat radiated by it in will be closest to –

### Choices

Choice (4) Response

a.

40

b.

640

c.

320

d.

160

## Question number: 4

» Dual Nature of Matter and Radiation » Black-Body Radiation

Appeared in Year: 2005

Assertion-Reason▾

### Assertion (Ꭺ)

For higher temperature the peak emission wavelength of a black body shifts to lower wavelength.

### Reason (Ꭱ)

Peak emission wavelength of black body is proportional to the fourth power of temperature.

### Choices

Choice (4) Response

a.

Ꭺ is true but Ꭱ is false

b.

Both Ꭺ and Ꭱ are false

c.

Ꭺ is false but Ꭱ is true

d.

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

f Page