1.  In thermal equilibrium

2.  At low temperature

3.  At high temperature

4.  None of these

4
Correct Answer :

In thermal equilibrium


Explanation :
No Explanation available for this question

1.  With equal wavelength and temperature

2.  In radio frequency range

3.  In infrared range

4.  All of these

4
Correct Answer :

With equal wavelength and temperature


Explanation :
No Explanation available for this question

1.  Less than 1

2.  Equal to 1

3.  More than 1

4.  None of these

4
Correct Answer :

Less than 1


Explanation :
No Explanation available for this question

1.  Black body

2.  White body

3.  Grey body

4.  Opaque body

4
Correct Answer :

Grey body


Explanation :
No Explanation available for this question

1.  0 and 0.1

2.  -1 and +1

3.  0 and 1.0

4.  None of these

4
Correct Answer :

0 and 1.0


Explanation :
No Explanation available for this question

1.  0 and 0

2.  1and 0

3.  0 and 1

4.  1 and 1

4
Correct Answer :

0 and 1


Explanation :
No Explanation available for this question

1.  0 and 0

2.  1and 0

3.  0 and 1

4.  1 and 1

4
Correct Answer :

1and 0


Explanation :
No Explanation available for this question

1.  0 and 0

2.  1and 0

3.  0 and 1

4.  1 and 1

4
Correct Answer :

0 and 0


Explanation :
No Explanation available for this question

1.  Weans law

2.  Stefan’s law

3.  Kirchhoff’s law

4.  Planck’s law

4
Correct Answer :

Weans law


Explanation :
No Explanation available for this question

1.  Weans law

2.  Stefan’s law

3.  Kirchhoff’s law

4.  Planck’s law

4
Correct Answer :

Kirchhoff’s law


Explanation :
No Explanation available for this question

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