Physics-
General
Easy
Question
Heat is conducted across a composite block of two slabs of thickness d and 2d. Their thermal conductivities are 2k and k respectively. All the heat entering the face AB leaves from the face CD. The temperature in °C of the junction EF of the two slabs is :
- 20
- 50
- 60
- 80
The correct answer is: 80
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of the companion star and its average potential energy < U>. In particular, 
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Which of the following prevents the companion star from leaving its orbit and falling into the black hole?
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Which of the following prevents the companion star from leaving its orbit and falling into the black hole?
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at
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