MCQ
The electron affinity values for the halogens show the following trend
- ✓$F < Cl > Br > I$
- B$F < Cl < Br < I$
- C$F > Cl > Br > I$
- D$F < Cl > Br < I$
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$A$. $T _4 > T _3 > T _2 > T _1$
$B.$ The black body consists of particles performing simple harmonic motion.
$C.$ The peak of the spectrum shifts to shorter wavelength as temperature increases.
$D.$ $\frac{ T _1}{ v _1}=\frac{ T _2}{ v _2}=\frac{ T _3}{ v _3} \neq$ constant
$E.$ The given spectrum could be explained using quantisation of energy.
Neglect any changes in volume