Heat and Thermal ExpansionHard
Question
A red star and a green star radiate energy at the same rate which star is bigger .
Options
A.Red
B.Green
C.Both have same sixeBoth have same size
D.can’t be say anything
Solution
= σAT4 = same but Tred < Tgreen as λred < Tred = λgreenTgreen (see VIBGYOR)⇒ Area of red star is greater
Create a free account to view solution
View Solution FreeMore Heat and Thermal Expansion Questions
A vessel is partitioned two equal halves by a fixed diathermy separator. Two different ideal gasses are filled in left (...The temperature of an isotropic cubical solid of length l0 density ρo and coefficient of liner expansion is increas...Two substance A and B of equal mass m are heated by uniform rate of 6 cal s-1 similar conditions. A graph between temper...Four moles of hydrogen , teo moles of helium and one mole of water vapor from an ideal gas mixture. What is the molar sp...A mixture of n1 moles of monoatomic gas and n2 moles of diatomic gas has γ = 1.5 : -...