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Heat and Thermodynamics question

2023 · Shift 1 · Q49
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Heat and Thermodynamics question

2023 · Shift 1 · Q49

JEE AdvancedPhysicsHeat and ThermodynamicsMCQ+3 / −1
Match the temperature of a black body given in List-I with an appropriate statement in List-II, and choose the correct option.

[Given: Wien's constant as 2.9×10−3 m−K2.9 \times 10^{-3} \mathrm{~m}-\mathrm{K}2.9×10−3 m−K and hce=1.24×10−6 V−m\frac{h c}{e}=1.24 \times 10^{-6} \mathrm{~V}-\mathrm{m}ehc​=1.24×10−6 V−m]

List - I List - II
(P) 2000 K2000 \mathrm{~K}2000 K (1) The radiation at peak wavelength can lead to emission of photoelectrons from a metal of work function 4eV4 \mathrm{eV}4eV.
(Q) 3000 K3000 \mathrm{~K}3000 K (2) The radiation at peak wavelength is visible to human eye.
(R) 5000 K5000 \mathrm{~K}5000 K (3) The radiation at peak emission wavelength will result in the widest central maximum of a single slit diffraction.
(S) 10000 K10000 \mathrm{~K}10000 K (4) The power emitted per unit area is 1/161 / 161/16 of that emitted by a blackbody at temperature 6000 K6000 \mathrm{~K}6000 K.
(5) The radiation at peak emission wavelength can be used to image human bones.
  1. A
    P→3,Q→5,R→2,S→3P \rightarrow 3, Q \rightarrow 5, R \rightarrow 2, S \rightarrow 3P→3,Q→5,R→2,S→3
  2. B
    P→3,Q→2,R→4,S→1P \rightarrow 3, Q \rightarrow 2, R \rightarrow 4, S \rightarrow 1P→3,Q→2,R→4,S→1
  3. C
    P→3,Q→4,R→2,S→1P \rightarrow 3, Q \rightarrow 4, R \rightarrow 2, S \rightarrow 1P→3,Q→4,R→2,S→1
  4. D
    P→1,Q→2,R→5,S→3P \rightarrow 1, Q \rightarrow 2, R \rightarrow 5, S \rightarrow 3P→1,Q→2,R→5,S→3
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