Following figure shows spectrum of an ideal black body at four di… - Vidyadip

MCQ

Following figure shows spectrum of an ideal black body at four different temperatures. The number of correct statement/s from the following is $..............$.

$A$. $T _4 > T _3 > T _2 > T _1$

$B.$ 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.

✓
$2$
B
$3$
C
$1$
D
$4$

✓

Answer

Correct option: A.

$2$

a
The spectrum of Black body radiation is explained using quantization of energy. With increase in temperature, peak of spectrum shifts to shorter wavelength or higher frequency. For above graph

$\rightarrow T _1 > T _2 > T _3 > T _4 \text {. }$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from 2. structure of atom→2. structure of atom — all question types→Chemistry STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Among the species : $C{O_2},C{H_3}CO{O^ - },$ $CO,C{O_3}^{2 - },$ $HCHO$ which has the weakest carbon- oxygen bond

A certain atomic transition from an excited state to the ground state of the hydrogen atom in one or more steps give rise to four line in the ultraviolet region of the spectrum. How many lines does this transition produce in the infrared region of the spectrum

A fish swimming in water body when taken out from the water body is covered with a film of water of weight $36\, g$. When it is subjected to cooking at $100^{\circ} C$, then the internal energy for vaporization in $kJ mol ^{-1}$ is $......$ [nearest integer]

[Assume steam to be an ideal gas. Given $A _{ vap } H ^{\ominus}$ for water at $373 \,K$ and $1\, bar$ is $41.1 \,kJ\, mol ^{-1} ; R =$ 8.31 $J\,K ^{-1} \,mol ^{-1}$ ]

The decreasing order of the repulsive interaction of electron pairs is $($Here, $\ce{lp} =$ lone pair, $\ce{bp} =$ bond pair$)$ :

The maximum work done in expnading $16\,g\, O_2$ isothermally at $300\, K$ and occupying a volume $5\, dm^3$ until the volume becomes $25\, dm^3$ is

Which one of the following bonds has the highest average bond energy $(kcal/mol)$

A weak acid $HX$ has the dissociation constant $1\times10^{-5}\, M$. It forms a salt $NaX$ on reaction with alkali. The percentage hydrolysis of $0.1\, M$ solution of $NaX$ is ........ $\%$.

The atomic orbitals are progressively filled in order of increasing energy. This principle is called as

Which of the following obtained product is not correct

Increasing order of electron affinity is