Explore topic-wise InterviewSolutions in Current Affairs.

This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.

1.

1. Choose the clipped (a) reftor word for ‘refrigerator’. (b) refrig (c) gerator (d) fridge2. Choose the clipped (a) chronise word for “synchronise”. (b)synchron (c) sync (d) synchro3. Choose the clipped (a) rhin word for the word “rhinoceros”. (b) rhino (c) rhinoce (d) ceros4. Choose the clipped (a) stats word for “statistics”.(b) statis (c) static (d) statist5. Choose the clipped word for “veterinarian” (a) vetem (b) vetrin (c) veter (d) vet

Answer»

1. (d) fridge

2. (d) vet

3. (c) sync

4. (b) rhino

5. (a) stats

2.

In his letter to Charley, Sam writes, ‘…then I got to believing you were right.’ What could have made Sam begin to believe?

Answer»

Accept all relevant answers supported by rationale

- Sam had not believed Charley when he had mentioned the third level at the Grand Central. 

- Sam had liked the description of 1894 life and living. 

- Sam must have gone in search of the third level and found it

3.

Some more examples of clipped words:

Answer»
1agricultureagri
2alchemistchemist
3alumni/alumnaalum
4amendmend
5apollinarispolly
6automobileauto
7beautifulbeauty
8biologybio
9botanybot
10brassierebra
11brotherbro
12brustbust
13buttocksbutt
14ceblegramcable
15calculuscalc
16cellphonecell
17centumcent
18clericclerk
19coattailstails
20coca-cola/cocainecoke
21coeducaitonalcoed
22comprehensivecomp
23condominiumcondo
24co- operativeco-op
25cousincous
26cucumbercuke
27daddydad
28daily paperdaily
29delicatessen/delicacydent
30dental/dnetistrydent
31detectivetec
32differentiadiff
33disportsport
34distillstill
35doctordoc
36dormitorydorm
37draperydrape
38earthquakequake
39ecologyeco
40enthusiasmenthu
41examinationexam
42fabulousfab
43faggotfag
44fraternityfrat
45gabblegab
46gentlemangent
47gypsygyp
48hackneyhack
49head-shrinkershrink
50homosexualhomo
51jet aircraftjet
52laboratorylab
53lavatorylav
54limousinelimo
55literaturelit
56lubricatelibe
57mathematicsmaths
58maximummax
59medicalmedic
60memorandummemo
61mistressmiss
62mobile vulgusmob
63modemmod
64mommymom
65motorcarcar
66non- veegetariannon-veg
67oleomargarinemargarine
68prachutechute
69parole dhonneurparole
70penitnetiarypen
71pepperpep
72percolate/perquisiteperk
73periwigwig
74petroleumpetro
75photographphoto
76popularpop
77presidentpres
78professionalpro
79professorprof
80psychologypsych
81public housepub
82pungnaciouspug
83pajamasjams/jammies
84quadrangle/quadrophonicquad
85raccooncoon
86referree/referenceref
87representativerep
88revolution/reverendrev
89robotbot
90saxophonesax
91schizophrenicschizo
92scramblesquad
93specificaitonsspecs
94sweatsuitsweats
95synchonizesync
96teacherteach
97technicaltech
98telephonephone
99televisiontele
100trigonometrytrig
101triumphtrump
102trombonebone
103turnipikepike
104tuxedotux
105tympanitymps
106universal jointu joint
107universityuvarsity
108vegetarianveg
109veteran/veterinarianvet
110websiteweb
111zoological gardenzoo

4.

Choose the word from the options given to form a compound word with “sun’” , (a) right (b) rays (c) writes(d) weight

Answer»

correct answer is (b) rays

5.

Choose the word from the options given to form a compound word with “wise”. (a) anti (b) march (c) clock (d) week

Answer»

Correct answer is (c) clock

6.

choose the word from the options given to ton a compound word with “Crime”. (a) anti (b) branch (c) clock (d) week

Answer»

Correct answer is (b) branch

7.

Choose the word than the options given to ton a compound word with ‘‘milk”. (a) life (b) tan (c) planet (d) star

Answer»

Correct answer is (a) life

8.

choose the word from the options given to ton an emptied word with “Me”. (a) save (b) race (c) lite (d) time

Answer»

Correct answer is (d) time

9.

choose the word from the options given to for a compound word with “open”. (a) open-air (b) trash (c) can (d) dose

Answer»

Correct answer is (a) open-air

10.

All …… must be written neatly and accurately.1. Messages 2. Information 3. Phone call

Answer»

All Messages must be written neatly and accurately.

11.

Choose the right definition for the given term ‘Fatalism’. (a) The belief in after life (b) The belief that God manifests everywhere (c) The belief in attacks by ghosts(d) The belief that all events in life are predetermined and inevitable

Answer»

(d) The belief that all events in life are predetermined and inevitable

12.

Find f¹(x) if f(x) = 3x+2/x

Answer»

\(f(\mathrm x) = \frac{3\mathrm x+2}{\mathrm x}\)

\(f^1(\mathrm x)\) \(=\frac{\mathrm x \frac{d}{d\mathrm x}(3\mathrm x+2)-(3\mathrm x+2)\frac{d}{d\mathrm x}\mathrm x}{\mathrm x^2}\)   \(\Big(\)By \(\frac{U}{V}\)formula\(\Big)\)

\(=\frac{3\mathrm x-(3\mathrm x+2)}{\mathrm x^2}\)

\(=\frac{-2}{\mathrm x^2}\).

13.

If the ordered pairs ( a+2,4) and (5,2a+b) are equal then {a,b} is

Answer»

If ordered pairs are equal, then there domain and range are also equal.

So, a+2=5

So, a=5-2

a=3

Now 4=2a+b

Putting the value of a, we get;

4=3×2+b

So,4=6+b

Therefore b=-2.

14.

A flat plate is moving normal to its plane through a gas under the action of constant force F. The gas is kept at a very low pressure. The speed of the plate v is much less than the average speed u of the gas molecules. Which of the following options is/are true? (A) The resistive force experienced by the plate is proportional to v (B) The pressure difference between the leading and trailing faces of the plate is proportional to uv (C) The plate will continue to move with constant non-zero acceleration, at all times (D) At a later time the external force F balances the resistive force.

Answer»

(A) The resistive force experienced by the plate is proportional to v 

(B) The pressure difference between the leading and trailing faces of the plate is proportional to uv 

(D) At a later time the external force F balances the resistive force.

15.

If the ordered pairs (a+2,4)and (5,2a+b) are equal then ( a,b) is

Answer»

(a + 2, 4), (5, 2a + b)

a + 2 = 5

a = 3

2a + b = 4

6 + b = 4

b = – 2

16.

Choose the right definition for the given term ‘Anthology’. (a) A collection of selected literary passages (b) A collection of archeological substances (c) A collection of maps(d) A collection of lyrics

Answer»

(a) A collection of selected literary passages

17.

Write the general definition of electric dipole moment for a collection of point charge

Answer»

if two equal and opposite charge separated by very small distance it is called electric dipole


18.

What does the hotkey F3 do in Maya? a. Modeling b. Rigging c. Animation d. Rendering

Answer»

Correct answer is b. Rigging 

19.

Where the xyz axis indicator appears on a view panel of Maya? a. Upper left corner b. Upper right corner c. lower left corner d. lower right corner

Answer»

Correct answer is c. lower left corner 

20.

What colour is the Z axis in Maya Software? a. Red b. Blue c. Green d. Black

Answer»

Correct answer is b. Blue 

21.

By default the origin is located at the _______ axis position. a. 1,1,1 b. 0,0,0 c. 1,0,1 d. 0,1,0

Answer»

Correct answer is b. 0,0,0 

22.

_________ is useful for storing tools and items that we use frequently or have customized for our own use. a. Panel b. Status line c. Shelf d. Command line

Answer»

Correct answer is c. Shelf 

23.

Texturing artist in the Media & Entertainment Industry is also known as a _____ a. Shading artist b. 3D Artist c. Character Texture Artist d. Shading, 3D & Character Texture Artist

Answer»

Correct answer is d. Shading, 3D & Character Texture Artist

24.

Which of the following is NOT a key competency of a good texturing artist? a. Using software b. Knowledge of materials c. Collaboration d. Clean brushstrokes

Answer»

Correct answer is d. Clean brushstrokes

25.

A uniform sphere is place on a smooth horizontal surface and as horizontal force F is appied on it at a distance h above the surface. The acceleratioin of the centreA. is maximum at h = 0B. is maximum when h = RC. is maximum when h = 2RD. is independent of h.

Answer» Correct Answer - A
We have `(1)/(2)mv^(2)=mg(4-2)=2mg`
`v=sqrt(4g)=2sqrt(g)`
Now vertical component at `R = v sin 30^(@)=2sqrt(g).(1)/(2)=sqrt(g)`
26.

Explain hydrogen bonding and briefly explain intermolecular hydrogen bonding

Answer»

Hydrogen bond is a electrostatic attraction between a hydrogen atom which is bond to a more electronegative atom such as Nitrogen, Oxygen, fluorine.
 Intermolecular Hydrogen bonding :- It occurs between two separate molecules.
Eq :- H−F......H−F......H−F
                         ↕
                       H−bonding (Intermolecular)

27.

What are the Roles and Responsibilities of Texturing artist?

Answer»

Brief Job Description

Individuals at this job are responsible to add textures to models to create photorealistic models that can be used for animation.

Responsibilities:

  • Collaborate with the CG Supervisor and Lead Texture Artist to execute the required look of CG characters and objects 
  • Continual and efficient communication with the Look Dev and Modelling departments 
  • Quality control of texture maps prior to publishing to ensure consistency 
  • Meeting schedules and set deadlines while maintaining the highest standards 
  • Communicating with Production and Leads regarding schedules and deadlines 
  • Sharing techniques, reference material and ideas with the team 
  • Continuing to become familiar with new tools, software, data and other related technology.

Essential Skills:

  • The ability to work within a team of other Texture Artists or independently 
  • A commitment to creative collaboration within the team and with other departments 
  • Proactive and excellent communication, organisation and interpersonal skills 
  • Creative problem solving skills 
  • The proven ability to work well under pressure 
  • Open to direction and able to embrace change 
  • Attention to detail 
  • Reliable with good time keeping and the ability to meet set deadlines.
28.

in column - I certain situations are shown Column-II has different values of phase difference Match them [take `pi^(2)=10` wherever required]

Answer» Correct Answer - [(A)Q(B)R(C)S]
(A) `phi=tan^(-1)(R/(X_(L)))=tan^(-1)(R/(omegaL))=tan^(-1)(20/(2pi^(2)))=tan^(-1)(1)`
(B) `T=2pisqrt(l/g),So T_(1)approx 2s,T_(2)approx 4s`
`Deltaphi=(Deltaomega)t=((2pi)/T_(1)-(2pi)/T_(2))t=2pi(1/2-1/4)1`
`Deltaphi=pi//2`
(C)`Deltaphi=kDeltax=(2pi)/lambda Deltax=(2pif)/V Deltax=pi`
`V=sqrt(T/mu)=100m//s`
29.

A homogeneous magnetic field B is perpendicular to a sufficiently long fixed track of width l which is horizontal. A frictionless rod of mass m straddles the two rail of the track as shown in the figure. Entir arrangement lies in horizontal plane. For the situation suggested in column-II match the appropriate entries in column-II. The rails are also resistanceless.

Answer» Correct Answer - Ararr(P,Q);Brarr(Q)Crarr(R )Drarr(P,S,T)
For (A): `(V-Blv)/(R )=I, F=(V-Blv)/(R )xxBl`
For (B): rod is non-conducting so no current
For (c ): No energy dissipated as no resistance
`R rarr` Red executes SHM
F=ilB to left `implies f_("ext")` to right
F=ilB, `(Ldi)/(dt)=Blv`
implies not possible to move with constant v.
30.

A homogeneous magnetic field B is perpendicular to a sufficiently long trach of width l which is horizontal A frictionless conducting resistanceless rod of mass m stradless the two rails of the track as shown in the figure. Entire arrangement lies in horizontal plane. For the situation suggested in column-II match the appropriate entries in column-I the rails are also resistancesless.

Answer» Correct Answer - [(A)PQ;(B)PQ;(C)R;(D)PST]
(A) `(V-Blv)/R=i`
`F=(V-Blv)/R xx Bl`
(B) `ilB =ma Rightarrow (lBdQ)/dt=(mdv)/(dt) Rightarrow (BlQ)/m`
`U_(i) gt U_(f)` because energy is dissipated in em radiator
(C) No energy dissipated as no resistance R rightarrow Red executes SHM
`F=ilB to left Rightarrow f_(ext) to right`
`F=ilB (Ldi)/(dt)=Blv Rightarrow` not possible to move with constant v
31.

Are the following velocity `-` time graph and speed `-` time graphs possible ?

Answer» Correct Answer - only graph `(ii)` is possible
`(i)` Impossible `:` Speed is always positive
`(ii)` Impossible `:` Time never decreases
`(iii)` Possible `:` Velocity may increase with time.
32.

Distinguish between the while loop and the for loop

Answer»

For loop:

For loop provides a concise way of writing the loop structure. Unlike a while loop, a for statement consumes the initialization, condition and increment/decrement in one line thereby providing a shorter, easy to debug structure of looping.

Syntax:

for (initialization condition; testing condition; 
                              increment/decrement)
{
    statement(s)
}

While loop:

A while loop is a control flow statement that allows code to be executed repeatedly based on a given Boolean condition. The while loop can be thought of as a repeating if statement.
Syntax :

while (boolean condition)
{
   loop statements...
}

33.

mention and describe three standard way of traversing a binary tree T with root R

Answer»
  • Prefix, infix, postfix.
  • Pre-process, in-process, post-process.
  • Pre-traversal, in-traversal, post-traversal.
  • Pre-order, in-order, post-order.
34.

Consider the situation shown in column-I a real object is moving towards a fixed optical component or an optical component is moving towards a fixed object. Match the possible direction and magnitude to velocity of image as shown in Column-II (All velocities in column-II are equal to v_(0))

Answer» Correct Answer - [(A)PT(B)PS(C)QR(D)PR]
(A&B) For mirror `v_(1)=-(v/u)^(2)V_(0)` (opposite to `v_(0))`
(C) For lens
`v_(1)=(v/u)^(2)v_(0)` (same direction to `v_(0))`
(D) plane mirror, `v_(1)=2v_(m)` (same direction to `v_(0))`
35.

Light is incident at surface PQ of prism as shown in column I then match the column I with column II (Surrounding medium is air in all cases)

Answer» Correct Answer - [(A)P(B)Q(C)RS]
(A) `r_(1)=30^(@),r_(2)=70^(@)` c=45^(@)`
(B) `r_(1)=30^(@) r_(2)=0^(@)` light emerges normally from surface QR
(C) `1xxsin90^(@) = sqrt(2)xxsinr_(1)`
`r_(1)=45^(@)`
`sqrt(2)xx1/sqrt(2)=1xxsin e`
`e= 90^(@)`
Light emergies grazing from surface QR
36.

`AB` and `CD` are two uniform resistance wires of lengths `100 cm` and `80 cm` respectively. The connections are shown in the figure. The cell of emf `5 V` is ideal while the other cell of `E` has internal resistance `2 Omega`. A length of `20 cm` of wire `CD` is balanced by `40 cm` of wire `AB`. Find the emf `E` in volt, if the reading of the ideal ammeter is `2 A`. The other connecting wires have negligible resistance

Answer» Correct Answer - 12
Potential difference across wire AB = 5V
`:.` p.d across 40 cm of this wire `= (5)/(100) xx 40`
= 2 volt
`:.` Potential difference across 20 cm of wire CD = 2 volt
`:.` p.d across wire `CD =(2)/(20)xx80=8` volt
p.d across `2 Omega` resistance `= 2 xx 2 = 4` volt
`:.` Emf of the cell = 12 volt.
37.

How can one work with the transparency of an object?

Answer»

You can work with the transparency of an object in the following ways: 

· Change the transparency level of an object adjusting the transparency attribute of a material applied to the object. 

· Apply a texture as a transparency map to the material’s transparency attribute to designate which areas of an object are opaque, transparent or semi-transparent.

38.

An extended object is moving in front of concave mirror as shown in figure On L.H.S velocity of object and position is given On R.H.S some properties of image and its velocity is given Consider velocity along x-axis only `{:(,"Object",,"Image"),("(A)","+ve velocity and object is between focus and centre of curvature",,"(P)+ve velocity"),("(B)","-ve velocity and object is between focus and pole",,"(Q)-ve velocity"),("(C)","-ve velocity and object is beyond centre of curvature",,"(R)size of image is increasing"),("(D)","-ve velocity and object is virtual",,"(S)size of image is decreasing"):}`

Answer» Correct Answer - [(A)QR;(B)PR;(C)PS;(D)PR]
`v_(1)=(-v^(2))/u^(2)v_(0)`
(A) `if v_(0)=(+) Rightarrow v_(I)=(-) ve`
`|(h_(2)/h_(1))|=v/u as |u|` decreases Rightarrow `|v| increases Rightarrow` magnification increases
(B) as object goes from `P rightarrow f` image goes from `P rightarrow +infty`
`|v| uparrow |u| downarrow Rightarrow m^(2) uparrow`
(C) Object gas from `C rightarrow -infty` image goes from `C rightarrow focus`
`|u| uparrow |v| downarrow Rightarrow m^(2) downarrow`
(D) Object goes from `+infty rightarrow P` image goes from `-f rightarrow P`
`|v|downarrow |u| downarrow` v is decreases with a greater rate Rightarrow `m^(2) downarrow`
39.

Explain IOR parameter.

Answer»

The IOR parameter (Index of Refraction) defines the material's Fresnel reflectivity and is by default the angular function used. Effectively the IOR will define the balance between reflections on surfaces facing the viewer and on surface edges.

40.

Which of the following was once a capital city of the Bundelas?1. Bhind2. Shivpuri3. Chhatarpur4. Orchha

Answer» Correct Answer - Option 4 : Orchha

The correct answer is Orchha.

  • Orchha was the capital city of the Bundela rulers.

  • Bundela rulers were Rajput of Central India.
  • They gave its name to Bundelkhand in north-central India. 
  • It is known for its famous palaces and temples.
  • It is under the Niwari district which was built in the 16th and 17th centuries.
  • The architecture of the monuments reflects the glory of its founders.
  • Orchha State was founded in 1531 by Rudra Pratap Singh who is known as the first King of Orchha.
  • The main attraction places/sites of Orcha are Orchha Fort, Jahangir Mahal, Ram Raja Temple, Chhatris Cenotaphs, Betwa River, Chaturbhuj Temple, Lakshmi Narayan Temple, and Raja Mahal.
41.

Which among the following peaks is NOT located in Nepal Himalayas?1. Annapurna2. Mount Everest3. Lhotse4. Kamet

Answer» Correct Answer - Option 4 : Kamet

The correct answer is Kamet.

  • Kamet, the mountain peak of the Himalayas in Uttarakhand state, northern India, near the border with the Tibet Autonomous Region of China.
  • Part of the Zaskar Range, it is 25,446 feet (7,756 meters) high and was first climbed in 1931.

  • Annapurna, Nepali Annapurna Himal, the massif of the Himalayas in north-central Nepal. It forms a ridge some 30 miles (48 km) long between the gorges of the Kali (Kali Gandak; west) and Marsyandi (east) rivers north of the town of Pokhara.
  • Mount Everest is the Great Himalayas of southern Asia that lies on the border between Nepal and the Tibet Autonomous Region of China, at 27°59′ N 86°56′ E. Reaching an elevation of 29,035 feet (8,850 meters), is the highest mountain in the world. Its most common Tibetan name, Chomolungma, means “Goddess Mother of the World” or “Goddess of the Valley.” The Sanskrit name Sagarmatha means literally “Peak of Heaven.” Everest is shaped like a three-sided pyramid.
  • Lhotse, (Tibetan: “South Peak”) also called E1, a mountain massif in the Himalayas on the border of Nepal and the Tibet Autonomous Region of China. It consists of three summits, the highest of which Lhotse at 27,940 feet (8,516 meters) is the world’s fourth-tallest peak. It is sometimes considered part of the Everest massif.

  • Jordan Romero, age 13 became the youngest climber to reach the top of Mount Everest.
  • Africa continent hosts the Atlas Mountains.
42.

An object kept on the principle axis is moving in the same direction as that of mirror is `10m//s` and `40//13m//s`. Radius of the curvature of the mirror is 20 cm. What should be the distance of object from the mirror at this instant so that the image is stationary? A. 45 cmB. 37.5 cmC. 25 cmD. 15 cm

Answer» Correct Answer - C
`vecV_(im)=(v^(2))/(u^(2))vecv_(om)`
`0-(40)/(13)=-((-10)/(-10+x))^(2)(10-(40)/(13))`
`=(-10)/(-10+x)=+-(2)/(3)`
`x=25,-5cm`
Object is infront of mirror
Hence `25cm`
43.

An organ pipe closed at one end has a harmonic with a frequency of 500 Hz. The next higher harmonic in an organ pipe closed at one end but of double length has frequency 350 Hz. Which of the following option is correct? (speed of sound in air is `340m//s`)A. Length of first organ pipe is 85 cm and it was vibrating in `5^(th)` harmonicB. Length of first organ pipe is 170 cm and it was vibrating in `5^(th)` overtoneC. Length of first organ pipe is 85 cm and it was vibrating in `5^(th)` overtoneD. none of these

Answer» Correct Answer - A
First case `((2n-1)v)/(4l)=500`
second case `((2n+1))/(8l)=350`
dividing `(2(2n-1))/(2n+1)=(10)/(7)`
`10n+5=14n-7`
`n=3`
`5^(th)` harmonic `2^(nd)` overtone I first case
`=(5xx340)/(4xxl)=500`
`l=85cm`
44.

A travelling wave travelled in string in `+x` direction with `2 cm//s`, particle at `x = 0` oscillates according to equation y (in mm) `= 2 sin (pi t+pi//3)`. What will be the slope of the wave at `x = 3cm` and `t = 1s` ?

Answer» Correct Answer - 3
Equation of wave can be given as
`y=0.2sin(pit-(pi)/(2)x+(pi)/(3))`
Slope `=(dely)/(delx)=-0.1xxpicos(pit-(pi)/(2)x+(pi)/(3))`
`(dely)/(delx)=-(pi)/(10)cos[pi-(3pi)/(2)+(pi)/(3)]=-(sqrt(3)pi)/(20)`
45.

A travelling wave travelled in string in `+x` direction with `2 cm//s`, particle at `x = 0` oscillates according to equation y (in mm) `= 2 sin (pi t+pi//3)`. What will be the slope of the wave at `x = 3cm` and `t = 1s` ?A. `-sqrt(3)pi//2`B. `tan^(-1)(-sqrt(3)pi//2)`C. `-sqrt(3)pi//20`D. `-sqrt(3)pi`

Answer» Correct Answer - C
A travelling wave…………..
`y = 2sin pi(t-(x)/(2)+(1)/(3))`
`(dy)/(dx) = 2cos (pi t - (pi x)/(2)+(pi)/(3))xx(-(pi)/(2))`
Equation of wave can be given as
`y = 0.2 sin (pi t - (pi)/(2)x +(pi)/(3))`
Slope3 `= (del y)/(del x) = -0.1xxpi cos (pi t-(pi)/(2)x +(pi)/(3))`
`(del y)/(del x)= -(pi)/(10)cos [pi - (3pi)/(2)+(pi)/(3)]= - (sqrt(3)pi)/(20)`
46.

________ are set of colors arranged in linear ordering and control the way colors could be filled or modified within the image.

Answer»

Gradients are set of colors arranged in linear ordering and control the way colors could be filled or modified within the image.

47.

What are the important properties of an anonymous function in JavaScript? Give an example.

Answer»

A function that is declared without any named identifier is known as an anonymous function. In general, an anonymous function is inaccessible after its declaration. Anonymous function declaration – anon = function() 

{ alert('I am anonymous'); }; 

anon();

48.

In summer, Kamal decides to take a bath at noon. Temperature of the water in overhead tank is `45^(@)C` so he decides to mix ince from refrigerator. The temperature of the ice in refrigerator. The temperature of the ice in refrigerator is `10^(@)C`. How much ice will be needed to prepare 20 kg of water at `25^(@)C` for bath? (Assume no loss to surrounding latent heat of fusion of ice `=80cal//gm`, specific heat of ice `=0.5cal//gm^(@)C`A. `400//115kg`B. `40//13kg`C. `40//11kg`D. `400//135`kg

Answer» Correct Answer - B
if `m` kg ice is required then
`(20-m)xx1(45-25)=mxx(1)/(2)xx(0-(-10)+mxx80+mxx1(25-0)`
`(20-m)xx20=mxx110`
`m=(400)/(130)=(40)/(13)kg`
49.

A travelling wave travelled in string in `+x` direction with `2 cm//s`, particle at `x = 0` oscillates according to equation y (in mm) `= 2 sin (pi t+pi//3)`. What will be the slope of the wave at `x = 3cm` and `t = 1s` ?A. `-sqrt(3)pi//20`B. `-sqrt(3)pi//2`C. `tan^(-1)(-sqrt(3)pi//2)`D. `-sqrt(3)pi`

Answer» Correct Answer - A
Equation of wave can be given as
`y=0.2sin(pit-(pi)/(2)x+(pi)/(3))`
slope `=(dely)/(delx)=-0.1xxpicos(pit-(pi)/(2)x+(pi)/(3))`
`(dely)/(delx)=-(pi)/(10)cos[pi-(3pi)/(2)+(pi)/(3)]`
`=-(sqrt(3))/(20)`
50.

Which country is called the ‘Coffee Bowl of the World’?1. Brazil2. Mexico3. India4. Serbia

Answer» Correct Answer - Option 1 : Brazil

The correct answer is Brazil.

  • Brazil is called the ‘Coffee Bowl of the World’.

Nicknames of Indian cities:

CityNicknames
Jodhpur
  • Blue city.
  • Sun city
Ahemadabad
  • Manchester of India.
  • Boston of India.
  • Denim city of India.
Mumbai
  • City of 7 Islands.
  • Gateway of India.
  • Financial capital of India.
  • Capital of cotton textile
Bengaluru
  • Electronic city of India
  • Silicon Valley of India.
  • Science city of India.
  • Garden city of India.
Agra
  • City of love.
  • City of Taj.
Calcutta
  • City of Joy.
  • The cultural capital of India.
  • City of Palaces.
  • City of Castles.
Nagpur
  • Orange city.
  • Tiger capital of India.
Nashik
  • Grape city.
Jaipur
  • Pink city.