List of top Atmospheric Science Questions

Match List - I with List - II

List - I (Function/Property)	List - II (Definition/Explanation)
A. Singular point	III. A point at which function is not differentiable.
B. Holomorphic function	IV. Other name of analytic function.
C. Entire function	II. Any function which is analytic everywhere.
D. Harmonic function	I. Any function which satisfies the Laplace's equation.

Match List I with List - II

List - I (Set Laws)	List - II (Form)
A. Idempotent law	III. $A \cup A = A$
B. Commutative law	I. $A \cup B = B \cup A$
C. Associative law	II. $A \cap (B \cap C) = (A \cap B) \cap C$
D. De-Morgan law	IV. $(A \cap B)' = A' \cup B'$

Match List - I with List - II

List - I (Property)	List - II (Expression)
A. Change of Scale Property	III. $L\{f(at)\}=\frac{1}{a}F\left(\frac{s}{a}\right)$
B. Final Value Theorem	IV. $\lim_{s\to 0}[sF(s)] = \lim_{t\to \infty} f(t)$
C. Heaviside's Shifting Theorem	II. $L\{g(t)\} = e^{-as}F(s)$
D. First Shifting Theorem	I. $L[e^{at}f(t)] = F(s-a)$

The Fourier series expansion is given as:
\[ \frac{a_{0}}{2} + a_{1}\cos x + a_{2}\cos 2x + \cdots + b_{1}\sin x + b_{2}\sin 2x + \cdots \]

For the function \[ f(x) = x + \frac{x^{2}}{4}, \quad -\pi \le x \le \pi \]
The value of $a_0$ and $b_2$ are:

Match List - I with List - II

List - I (Register)	List - II (Function)
A. Memory Address (MAR)	III. Holds address of the active memory location
B. Memory Buffer (MBR)	I. Holds information on its way to and from memory
C. Program Control (PC)	IV. Holds address of the next instruction to be executed
D. Accumulator (A)	II. Accumulates results and data to be operated upon

Match List - I with List - II

List - I (Computer Generation)	List - II (Hardware)
A. 1$^{st}$ Generation	I. Mini computer
B. 2$^{nd}$ Generation	II. Semiconductor memory
C. 3$^{rd}$ Generation	III. Magnetic core memory
D. 4$^{th}$ Generation	IV. Electromagnetic relay memory

The mean and standard deviation for the following data, respectively, are:

Size of item	8	9	10	11	12
Frequency	6	10	14	7	4

Match List - I with List - II

List - I (Property)	List - II (Definition)
A. Skewness	IV. Measure of departure from symmetry
B. Kurtosis	II. Measure of the degree of peakedness of a distribution
C. Variance	III. Square of standard deviation
D. Range	I. Difference between highest and least values of the variable

Consider the following statements about vertical profile of atmosphere. Choose the correct statements.
A. Mean free path increases with increase in the height above sea.
B. Mean free path is independent of the height above sea.
C. Pressure decreases with increase in the height above sea.
D. Density decreases with increase in the height above sea.
E. Density increases with increase in the height above sea.

Solar variability can force climate change. Which of the following statements are correct about Solar variability?
A. Flares are intense bursts of ultraviolet and X-ray emitted from the sun's outer atmosphere.
B. Sun spots are bright (hot) patches that interrupt the irregular pattern of convective cell in the photosphere.
C. Faculates are bright (hot) spots in the pattern of convective cells that often appear in conjugate with sunspots.
D. Solar activity is modulated by solar cycle of approximately 11 years.

Match List-I (Reservoirs of Earth System) with List-II (Process for Carbon Cycling)

List-I (Reservoir)	List-II (Process for Carbon Cycling)
A. Mantle	III. Volcanism
B. Biosphere	II. Photosynthesis
C. Crust	IV. Subduction
D. Atmosphere and Oceans	I. Burial

Match List-I (Parameter) with List-II (Definition)

List-I (Parameter)	List-II (Definition)
A. Mediterranean outflow	IV. Conspicuously warm and saline due to excess evaporation over precipitation.
B. Antarctic bottom water	I. Formed by sinking along the ice edge in the Weddell Sea.
C. North Atlantic deep water	II. Formed by sinking of water along the ice edge in Greenland.
D. Humboldt current	III. Equatorward current driven by winds along Eastern flanks.

Match List-I (Gas) with List-II (Atomic Weight)

List-I (Gas)	List-II (Atomic Weight)
A. Argon	II. 40
B. Krypton	IV. 86
C. Carbon dioxide	III. 44
D. Ozone	I. 48

Match List-I (Pollutant) with List-II (Method of Measurement)

List-I (Pollutant)	List-II (Method of Measurement)
A. O$_3$	I. Flame Photometry
B. SO$_2$	II. Gas Chromatograph
C. Pb	III. UV Spectrometer
D. Hydrocarbons	IV. Atomic absorption analysis

The value by which free fall acceleration differs from acceleration due to gravity at the equator is:

Match List - I with List - II

List - I (Parameter)	List - II (Definition)
A. Field view	I. Distance from the center of mirror to focal point.
B. Focal length	II. Center of the sphere of which the mirror's surface is a part.
C. Center of curvature	III. Curving a plane mirror such that its surface is flexed out.
D. Convex mirror	IV. The extent of the scene that is reflected to the observer.

Match List - I with List - II

List - I (Parameter of Black Body Radiation)	List - II (Expression)
A. Internal Energy ($u$)	I. $-\frac{1}{3}aVT^3$
B. Heat capacity at constant volume ($C_v$)	II. $aVT^4$
C. Entropy ($S$)	III. $4aVT^3$
D. Helmholtz Free energy ($F$)	IV. $\frac{4}{3}aVT^4$

[where 'a' is constant, V is volume and T is temperature]

Match List - I with List - II

List - I (Process)       List - II (Definition)

A. Photoluminescence       I. Excited carriers are created by high energy electron bombardment.
B. Electroluminescence       II. Emission of photons for period up to second or minutes.
C. Cathodoluminescence       III. Excitation of carriers by introduction of current.
D. Phosphorescence       IV. Excitation of carriers by photo absorption.

The fraction of the FCC unit cell volume filled with hard sphere is :

Arrange the following semiconductors in descending order of band gap :
A. Si
B. Ge
C. GaP
D. ZnS
E. SiC

For elliptical orbits, the ratio $\frac{T^2}{a^3}$ is same for every planetary orbit around a massive body, and its value is : [ where $a$ is semi-major axis of the ellipse, $T$ is time period of motion and $y_r$ is year]

Which one of the following is equivalent to the law of conservation of angular momentum ?

Arrange the following materials in ascending order of their probabilities of photo-electric effect for a $100 \text{ keV}$ photon.
A. C
B. O
C. Sn
D. Pb
E. Ca

Arrange the following gases in descending order of root mean square speed : [Given T = 300 K]
A. $ \text{H}_2 $
B. $ \text{O}_2 $
C. $ \text{N}_2 $
D. $ \text{H}_2\text{O} $
E. $ \text{CO}_2 $

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : The zero point energy is $\frac{1}{2}h\theta$, it is the lowest value of the energy of the Harmonic Oscillator. Reason (R) : Harmonic Oscillator is in equilibrium with its surroundings, it is called zero-point as it corresponds to an energy $E=E_0$ and not to $E=0$ when the external temperature approaches to $0 \text{ K}$. In the light of the above statements, choose the most appropriate answer from the options given below :

List - I (Parameter of Black Body Radiation)	List - II (Expression)
A. Internal Energy (\(u\))	I. \(-\frac{1}{3}aVT^3\)
B. Heat capacity at constant volume (\(C_v\))	II. \(aVT^4\)
C. Entropy (\(S\))	III. \(4aVT^3\)
D. Helmholtz Free energy (\(F\))	IV. \(\frac{4}{3}aVT^4\)

List - I (Set Laws)	List - II (Form)
A. Idempotent law	III. \(A \cup A = A\)
B. Commutative law	I. \(A \cup B = B \cup A\)
C. Associative law	II. \(A \cap (B \cap C) = (A \cap B) \cap C\)
D. De-Morgan law	IV. \((A \cap B)' = A' \cup B'\)

List - I (Property)	List - II (Expression)
A. Change of Scale Property	III. \(L\{f(at)\}=\frac{1}{a}F\left(\frac{s}{a}\right)\)
B. Final Value Theorem	IV. \(\lim_{s\to 0}[sF(s)] = \lim_{t\to \infty} f(t)\)
C. Heaviside's Shifting Theorem	II. \(L\{g(t)\} = e^{-as}F(s)\)
D. First Shifting Theorem	I. \(L[e^{at}f(t)] = F(s-a)\)

List-I (Pollutant)	List-II (Method of Measurement)
A. O\(_3\)	I. Flame Photometry
B. SO\(_2\)	II. Gas Chromatograph
C. Pb	III. UV Spectrometer
D. Hydrocarbons	IV. Atomic absorption analysis