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.

A player completes a circular path of radius r in 40s at the end of 2 min 20 sec find displacement

Answer»

As it takes 40s to complete one ROUND in 2 min 20 sec the player would be able to complete 3.5 rounds . Now try to imagine a player who has completed half of a round of a circle when you do that you will SEE that the SHORTEST path between the initial and the FINAL point is equal to the diameter . Thus , the displacement of the player is equal to 2r

2.

Adding a catalyst to a reaction has an effect similar toA.decreasing pressure.B.increasing temperature.C.adding water to a reaction.D.lowering the concentration.

Answer»

D is the ANSWER!!!!!!!!!

3.

Under what condition does a closed loop negative feedback becomes unstable

Answer»

Feedback is the process by which a fraction of the output signal, either a voltage or a current, is USED as an input. If this feed back fraction is opposite in VALUE or phase (“anti-phase”) to the input signal, then the feedback is said to be NEGATIVE Feedback, or degenerative feedback.

Negative feedback opposes or subtracts from the input signals giving it many advantages in the design and stabilisation of control systems. For example, if the systems output changes for any reason, then negative feedback AFFECTS the input in such a way as to COUNTERACT the change.

4.

Do electric vehicles have regular batteries in hood

Answer» SOMETIMES not and SOMTIMES SOLAR BATTERIES


OK
5.

Freezing of water does it violate second law

Answer»

When water freezes its entropy DECREASES. This does not violate thesecond LAW of thermodynamics. Thesecond law does not SAY that entropycan never decrease anywhere. ... The entropy of a system decreases only when it interacts with some other system whose entropy increases in the process.

IF IT IS CORRECT MARK BRAINLIEST ✌️

6.

What is the CGS unit of amount of substance?

Answer»

In SI SYSTEM AMOUNT of SUBSTANCE is MOL...

7.

Can someone please solve this question from the chapter Work, Energy and Power ?

Answer»

Correct OPTION is D
Don't forget to MARK Me as BRAINLIEST

8.

Metals good thermal conductors but non metal poor conductors why

Answer»

Metals are good CONDUCTORS of heat because they have the PROPERTY of CONDUCTING heat but while the non metals not CONDUCT heat

9.

16 battries connected in series hoe=w to calculate output power

Answer»

You will NEED the potential difference (V) of each of the batteries and the Resistance (R) across the CIRCUIT. Then apply the FORMULA P=V²/R. You will GET your answer..

10.

Device which converts outside heat to cool inside

Answer»

ACis thedevice which CONVERTS outside heat to COOL inside

11.

Difference between distance and displacement in table

Answer»

Distance is actual path TRAVELLED by the BODY while displacement is SHORTEST distance travelled by the body
distance is scalar while displacement is vector quantity

12.

For the reaction shown below, which statement is correct?CH4 + 2O2?CO2 + 2H2O + heatA.The products contain more energy.B.The reactants contain more energy.C.The reactants and products must contain the same amount of energy.D.It is not possible to tell whether the reactants or products contain more energy.

Answer»

The PRODUCTS CONTAIN more ENERGY as heat energy is PRODUCED in the REACTION

13.

A car increases its speed 250 km/hr in 10 second . what is its acceleration?

Answer»

The ACCELERATION of CAR in 10second is 6.94m/s^2

14.

Baking bread is an example ofA. forming mixtures. B. forming solutions. C. exothermic reactions. D. endothermic reactions.

Answer» BAKING BREAD is an EXAMPLE of FORMING MIXTURES.
15.

Refraction of light total internal reflection byjus

Answer»

Refraction is the change in direction of wave propagation due to a change in its transmission medium. The phenomenon is explained by the conservation of energy and the conservation of momentum.



Total INTERNAL reflection, in physics, completereflection of a ray of LIGHT within a medium such as water or glass from the SURROUNDING surfaces back into the medium. The phenomenon occurs if the angle of INCIDENCE is greater than a certain limiting angle, called the critical angle.

16.

The wave length of 1 Giga hertz frequency signal is

Answer» DEAR friend,

Simply divide the value SPEED of light (3 × 10^8) with thevalue of frequency (1 GIGA HERTZ = 10^9 Hz) and u will get it answer
17.

Draw lines of force to represent uniform electric field

Answer»

Electric lines of force are IMAGINARY line or CURVE drawn in Electric field in such a way TANGENTS to it at any point gives the direction of electrostatic force. It represents the strength and nature of electric field at any point due to a charge.
higher the Electric lines of force per UNIT area , higher will be electric field strength .

Uniform electric field means electric lines of force are uniformly distributed. As I attached a rough daigram of uniform electric field. here all lnes of force are parallel and EQUIDISTANT from each other.

18.

Express 1N in CGS system. Express 1J in cgs

Answer»

1 N = 1 kg * 1 m/s^2
= 1000 g * 100 CM/s^2
= 10^5 g cm/s^2
=10^5 dyne

1 J = 1 N * 1 m
= 10^5 dyne * 100 cm
= 10^7 dyne cm
= 10^7 ERGS

19.

Discuss the gamow's theory of alpha decay

Answer» ALPHA decay or α-decay is a type of RADIOACTIVE decay in which an ATOMIC NUCLEUS emits an alpha particle (helium nucleus) and thereby transforms or 'decays' into an atom with a MASS number that is reduced by four and an atomic number that is reduced by two.
20.

Sprinkler irrigation definition

Answer»

Sprinkler irrigation is a METHOD of APPLYING irrigation water in SIMILAR to rainfall.

21.

Magnetic force is measured in?

Answer»

Force of any KIND is measure always in newton the question MAY be of MAGNETIC field

22.

Ionisation theory of the matter

Answer»

Hi frnd,

 IONISATION is necessary. ... The DEGREE of ionisation of a plasma is the proportion of atoms that have lost or gained electrons, and is controlled by the ELECTRON and ion temperatures and electron-ion vs electron-neutral COLLISION frequencies.

23.

Which three metals are present in alnico?explain.which ones arre magnetic?

Answer» ALUMINUM, NICKEL, cobalt. hope it HELPS pls MARK as BRAINLIEST
24.

Why electricity IS CONSIDERED MOST SUITABLE FORM OF ENERGY

Answer»

It is cheaper easily AVAILABLE CHEAPLY transported high calorific VALUE

25.

Relation beteween Celsius and kelvin scale

Answer»

Both are MEASURED in TEMPERATURE.

26.

2.2 kW and 220 V with hitters of how much resistance.

Answer» CHECK KARO PRINCE....
27.

A 10 kg wire has cross sectional area 10 cm sq and length 10 meter.what is the numerical value of linear mass density of the wire

Answer»

Here is UR ANS in IMAGE

28.

Unit of force in si system

Answer»

The UNIT of FORCE in SI SYSTEM is NEWTON

29.

2.2 kW व 220 V वाले हिटर का प्रतिरोध कितना होगा

Answer» FIRST we have to convert 2.2kw into watt
So
1kw =1000w
2.2 * 1000=2200.0w
By using formula
R = v²/p
R= 220*220/2200
R=22 OHM
30.

Answer please for this question

Answer» CLEAR PHOTO.....................
31.

a car travel 100km and a speed of 60km 1 hour and returns with a speed of 40km/ h . calculate the average speed 44 journey

Answer»

The AVERAGE SPEED is 48km/hr

32.

A train is 100m long.find the time it takes to cross a bridge,500m long,when moving at a uniform velocity of 5km/hr.

Answer»

★ Ello ★

here is your answer !!

length of train =. 100 m

length of bridge = 500 m

distance travelled = length of train + length of bridge


=> ( 100 + 500 ) m

=> 600 m


velocity => 5km / h

therefore,

5 × 5 / 18 m / s

= >. 1.38 m / s


to calculate :-

time taken.


t = d / v

=>. 600 / 1.38


t => 434 .7 second


or 7.2 min


hence , your answer is

★ 7 .2 min ★


HOPE it HELPS you dear !!


thanks



33.

What happened when iron is exposed to the air

Answer»

Heya
here's your answer..
when IRON is EXPOSED to the air, it rusts...
HOPE it HELPS...

34.

Define reference point from the chaptr motion

Answer»

A reference point is a point which you took as your siting PLACE ( You may wanna USE a chair :P ) while observing the Nature . For example : IF you drink coffee in your house and from the window you see a boy riding a bicycle and then you measure his velocity , Then your home is the reference point . To Put it more accurately reference point is EQUIVALENT to the point 0 on the CO ordinate axis.

35.

Sound travell faster in which medium ?

Answer»

Heya!!!
.
Sound travels FASTER in DENSER MEDIUM..
.
Plz MARK as brainliest ✌☺

36.

under what condition will the distance covered and displacement of the moving object have the same magnitude

Answer»

If the PATH is STRAIGHT

37.

Longest wavelength in which colour ?

Answer» RED colour
Hope it will HELP you
38.

Difference between static and dynamic tire radius

Answer»

There are basically two main types of website - static and dynamic. A static site is one that is usually written in plain HTML and what is in the code of the page is what is displayed to the user. A dynamic site is one that is written using a server-side SCRIPTING language such as PHP, ASP, JSP, or Coldfusion.

39.

Please solve this all questions plz...

Answer» 1) for 4ohm 3and6 are PARALLEL to each and in series with 2ohm
for 1ohm all are in parallel

3) P = VI
4000 =220I
I = 200/11 amp

IR =V
R = 220×11÷200 = 12.1ohm

energy = Pt
= 4000×2×60×60
= 28800000 joule

if 1kwh costs 50paisa then
here is 4kw in sec
so in HOUR 14400kw
so 7200rs in hour

4) energy = Pt
for tv 250×60 = 15000
for toaster1200×10 = 12000

TV is consuming more energy


2) the question is not clear
40.

what are the significant conclusions drawn from the experimental observations about the flame structure in SI Engines

Answer»

It too HARD for me
I can't ABLE to GIVE the ANSWER

41.

Difference between form factor and ripple factor

Answer» FORM FACTOR: The form factor of an ALTERNATING current waveform (signal) is the ratio of the RMS (root mean square) value to the average value (MATHEMATICAL mean of absolute values of all points on the waveform). It identifies the ratio of the DIRECT current of equal power relative to the given alternating current.
42.

Convert si unit of pressure into cgs unit

Answer» DYNE is cgs
newton is SI
43.

the value of 'g' at the centre of the earth is zero. what will be the weight of a body of mass 'm'kg at the centre of earth? how?

Answer»

Hence the GRAVITY is 0 so WEIGHT of any body is influenced by gravity so its weight would ALSO be 0.

Thanks

44.

True or falserolling friction is less than sliding friction-all force are contact force

Answer»

It's TRUE that the rolling FRICTION is less than SLIDING frictionall FORCE

45.

Ek Hafte Mein Chasma Kaise hataye

Answer»

Hey hath SE.......it's very EASY chasma KO hath se pakro aur hata do....hhaa

46.

Friction is much less in ––––– than in sliding

Answer» ROLLING is the ANSWER THANK you
47.

Aloha!!____________quality answer required________________________what is graviton? explain in detail.________________________________

Answer»

Hi friend here is your answer

__________________________________________

The TERM GRAVITON was coined in 1934 by SOVIET physicist named Dimitri Bolkhintsev and F. Galperin

The Gravitons are the hypothetically considered particles which are responsible for the FLOW of the forces of gravity

Gravitons massless but still they have ability to carry charges. One graviton can form more such gravitons. Gravitons are small particles

____________________________________________


Hope it helps you.............!!
#TheUsos
Down since
Day One Ish

48.

If x =6t3+ 4t2 +2t-8 . Calculate the speed at t= 2second

Answer»
x = 6(2)3 + 4(2)2 + 2(2) - 8 \\ x = 36 + 16 + 4 - 8 \\ x = 48
i HOPE this will HELP UHH
49.

In human eye the focusing is done by:1. To and fro movement of eyelens2.To and fro movement of retina3.Change in the convexity of the lens surface4.Change in the refractive index in the eye fluids

Answer»

To and FRO MOVEMENT of EYE LENS

50.

Define forward break over voltage in scr

Answer»

Forward Breakover. Forward break over is a TERM which RELATES to SCR(Silicon CONTROLLED rectifier). This is often TERMED as Forward break over voltage of SCR.
 Forward break over voltage of SCR is the minimum forward voltage at which SCR starts CONDUCTING.