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.

If 64.24cm divided by 2.0s the result up to appropriate significant figures is​

Answer» NV VIV vivi vat KARI CV vu
2.

An object 3 cm high produces a real image 4-5 cm high, when placed at a distance of 20 cm from a concave mirror. Calculate : (i) the position of image (ii) focal length of the concavemirror.​

Answer»

-Here,object HEIGHT, h1 = 3 cmimage height, h2 = 4.5 cmwe KNOW that,m = h2 / h1 = - V / uSo,4.5/3=-v /-20 (object distance =20)4.5 (-20/3) = - vv= 30 cmSo, image is 30 cm from the mirror.Now , using mirror formula1/U+1/v=1/f1/-20+1/-30=1/f-5/60=1/f-1/12=1/ff=-12Hence , the required focal length is 12 cm.HOPE IT HELPS YOU.PLZ, MARK ME AS A BRAINLIEST AND GIVE ME THANKS.GOOD BYESEE U AGAIN

3.

Find the position of an object to get a virtual image atá distance of 25 cm from a convexmrror of focal length 20 cm​

Answer»

When an OBJECT is KEPT at a distance of 20 CM from a concave mirror, the image is formed at a distance of 10 cm. If the object is moved with a speed of 4 m/s, the speed with which the image moves is us-20 (A) 10 cm/sec (B) 1 m/sec (C) 4 m/sec (D) 0.4 m/sec. THANKS  Explanation:

4.

B. The resting position of a bob of pendulum is called _______________________position.

Answer»

The RESTING POSITION of a BOB of pendulum is called equilibrium position.

5.

> Question: 1An observer is exactly half way in a runningcompartment of train of length "L". He throwstwo balls at the same time (t'=0) with a speedu' as measured by him. One towards the frontwall and other towards the back wall. Find thegeneral relation for time in S and S’ frame ofreference when the balls hit the walls.​

Answer» GOOD AFTERNOON.......
6.

If the magnitude of vector A.B=1/2 AB then an angle between vector A and B is​

Answer»

the ANGLE between them is 60°since A.B = A× B COSX

7.

Tlu gravitational force follows theSquare law​

Answer»

The inverse square LAW proposed by Newton suggests that the FORCE of gravity acting between any two OBJECTS is INVERSELY proportional to the square of the separation distance between the object's CENTERS. Altering the separation distance (d) results in an alteration in the force of gravity acting between the objects.Explanation:MAKE MY ANS BRAINLIEST

8.

Vacuum exertspressure.infinitevery highzerovery low​

Answer»

The ANSWER of this QUESTION is very LOW

9.

a student performs an experiment and take 50 observation. The systematic error found to be e,now if the student takes 100 observation the systematic error would be?​

Answer» TION:AMSWER is e/2 as no of IBSERVATIONS REDUCES the ERROR
10.

Write the SI unit of power of lens​

Answer» DIOPTER is the POWER of lensExplanation:FOLLOW me
11.

Calculate the number of electrons constituting one coulomb of charge.​

Answer»

6×10^18 E FORM ONE C CHARGE

12.

Mass mass relationship on chemical equation​

Answer»

can be CREATED or DESTROYED but transformed . total mass of reactant is EQUAL to total mass of PRODUCT

13.

What will happen if moon of earth will be doubled than earth's size ?​

Answer»

tion:DIAMETER of EARTH would INCREASE from 8,000 miles to 16,000 miles. ... If the density of earth REMAINS same, then its mass will increase 8-fold. Earth's gravity will naturally DOUBLE.

14.

What is formula of mirror​

Answer»

u is the Object DISTANCE. v is the IMAGE distance. f is the Focal LENGTH given by f=\frac{R}{2} R is the radius of curvature of the SPHERICAL MIRROR.\

15.

Differentitae between the climate in your states with that of the northen and southern co​

Answer» GEST factor in differences in the climate in the Northern and SOUTHERN ... in the southern HEMISPHERE COME to a point at their bottom and the northern ones .
16.

Reason out the pros and cons of widening the world​

Answer»

dening lengthens commutes, INCREASES household costs, worsens POLLUTION, HARMS the economy, and, let us not forget, kills and injures MILLIONS of people globally every year. Transportation departments and politicians had the evidence decades ago and many CONTINUE to ignore it to this day. We need to make them understand.

17.

What is formula of lens​

Answer»

don't KNOW.....................

18.

A car travels the first half of a distance between two places at a speed of 30km/hr and the second half of the dis-tance at 50 km/hr. The average speedof the car for the whole journey is​

Answer» 1ST HALF is 30km/h 2ND half is 50km/hAverage 30+50=80km/h80/2=40km/h
19.

Conductors of heat like metals and insulators of heat like wood behave differently to sameamourft of heat.plzz explain this in short​

Answer» PLEASE mark me as BRAINLIST Explanation:hope it HELPS you to UNDERSTAND
20.

What is the unit of acceleration??pls reply mefollow me guys...♥️❤️❣️​

Answer» METER PER SECOND SQUARE
21.

Difference btw mass and weight of an object plz tell​

Answer» TION:The mass of an object is a measure of the object's inertial property, or the amount of matter it contains. The weight of an object is a measure of the FORCE EXERTED on the object by gravity, or the force needed to support it. The pull of gravity on the earth gives an object a downward ACCELERATION of about 9.8 m/s2.
22.

SI UNIT OF RESISTIVITY?????????​

Answer»

ohm's is the SI UNIT of resistivity.Explanation: mark me BRAINLIEST PLEASE.. hope it helps you...

23.

A horizontal overhead power line carries a current of 90 A in east to west direction. What is the magnitude and direction of the magnetic field due to the current 1.5 m below the line? ​

Answer»

Magnetic field, B =u°1 2πrB=1.2 × 10^-5TCurrent flows from EAST to WEST point is below the power lineUsing right HAND thumb rule direction of B is southwardExplanation:please please please please please please please please please please mark me as BRAINLIST

24.

how to solve .to fine the conversion factor between the unit of the same physical quantity in two different system of units? ​

Answer»

To find conversion factor between the units of the same physical QUANTITY in two DIFFERENT SYSTEMS of units.e.g. To find the conversion factor between the units of Force. i.e. newton in SI system to dyne in c.g.s. systemLet 1 newton = x dyne ....(i)The dimensions of force are [L1M1T−2]L1M1T-2∴∴ equation (1) in dimension form can be written as[L11M1 1T−21]=x[L21M2 1T−22][L11M1 1T1-2]=xL21M2 1T2-2∴x=[L11M11T−21][L21M11T−21]∴x=L11M11T1-2L21M11T1-2=(L1L2)1(M1M2)1(T1T2)−2=L1L21M1M21T1T2-2 ...(II)where suffix 1 indicates SI system and suffix 2 indicates C.G.S. system.In S.I. system L, M and T are expressed in m, kg, s and in C.G.S. system L, M and T are expressed in cm, g and s respectively,equation (ii) becomesx=(mcm)1(kgg)1(ss)−2x=mcm1kgg1ss-2=(102cmcm)1(103gg)1(1)−2=102cmcm1103gg11-2∴x=105∴x=105∴1 newton=105dyne∴1 newton=105dyneExplanation:it may help you and can you make it brainliest answer :-)

25.

What will be the kinetic energy of body if its mass is 2 kg and moving with a velocity of2 m/s? Write its order of magnitude andsignificant figures.​

Answer»

this case, a body of MASS 2.5 kg is moving with a VELOCITY 0.2 m/s.K.E = 21 mv 2 = 21 ×2.5×0.2 2 =0.05J.Hence, the potential energy of the body is 0.05 JExplanation:plz MRK me as brainlist

26.

What do you mean by acceleration due to gravity??​

Answer»

ÄŇŃĘÝØŇĞ+ĂŠÊÝÖ SISØ... HERE'S UR ANSWER.... physics. : the acceleration of a body in free FALL under the INFLUENCE of earth's gravity expressed as the rate of increase of velocity per unit of time and ASSIGNED the STANDARD value of 980.665 centimeters per second per second. — called also g.THANK YOU... SARANGHAYO SISØ....

27.

In which year the Paralympics world was used officially?​

Answer»

The size and diversity of the Paralympic GAMES have increased greatly over the YEARS. The Paralympics in 1960 hosted 400 athletes from 23 COUNTRIES participating in eight sports.Explanation:hope it helps you..

28.

The velocity of a particle varies with time as per the figure shown. The distance travelled by the particle in 10 secondsismis)6A АBܗ ܬ ܬ ܘ ܢܬ ܬ ܬE4 5 6 7 8 9 10t(s)25 m11 m29 m21 m​

Answer» GOOD morning have a great day YAAR please mark me as BRAINLIST please please please please please please please
29.

8) word equation for zn+ cacl2 gives zncl2+ cu A) zinc + Hydrochloric acid zinc chloride + HydrogenB) zinc + cupric chloride – zinc chloride + copper c) zinc + sulphuric acid _ zinc sulphate + HydrogenD) zinc + copper chloride _ zinc chloride + copper​

Answer»

CuCl2 + Zn → ZnCl2 + Cu - Balanced equation | Chemical EquationsExplanation:The reaction between zinc and HYDROCHLORIC acid is Zn + HCl = H2 + ZnCl2. It is a single replacement reaction where zinc metal displaces the hydrogen to form hydrogen gas and zinc chloride, a salt. Zinc reacts QUICKLY with the acid to form bubbles of hydrogen.Zinc and Copper Chloride Zn + CuCl2 ---> ZNCL+ CuIn this reaction, Zinc is the HIGHER series and copper is lower. The atoms of the more reactive metal push their electrons on to the ions of the less reactive metal. ... This is because copper is being FORMED during the reaction, meaning that new bonds are being formed.

30.

A force of 100newtom at an angle of 30degree with the horizabtal. find its horizantal and vertical component?​

Answer»

tion:imagine dragons thunder lyricsJust a young gun with a quick fuseI was uptight, wanna LET looseI was dreaming of bigger thingsAnd wanna leave my own life behindNot a "Yes, sir," not a followerFit the box, fit the moldHave a seat in the FOYER, take a numberI was lightning before the thunder[Pre-Chorus]Thunder, thunderThunder, thun-Thunder, th-th-thunder, thunderThunder, thunder, thun-Thunder, th-th-thunder, thunder[Chorus]Thunder, feel the thunder (Thunder, thunder, thun-)Lightning then the thunder (Thunder, th-th-thunder, thunder)Thunder, feel the thunder (Thunder, thunder, thun-, thun-)Lightning then the thunder, thunder, thunder (Th-th-thunder)Thunder (Thun-, thun-)[Verse 2]Kids were LAUGHING in my classesWhile I was scheming for the massesWho do you think you are?Dreaming 'bout being a BIG starThey say, "You're basic," they say, "You're easy"You're always riding in the backseatNow I'm smiling from the stageWhile you were clapping in the nosebleedsThunder, thunderThunder, thun-Thunder, th-th-thunder, thunderThunder, thunder, thun-Thunder, th-th-thunder, thunder[Chorus]Thunder, feel the thunder (Thunder, thunder, thun-)Lightning then the thunder (Thunder, th-th-thunder, thunder)Thunder, feel the thunder (Thunder, thunder, thun-, thun-)Lightning then the thunder, thunder, thunder (Th-th-thunder)Thunder (Thun-, thun-)[Bridge]Thunder, feel the thunderLightning then the thunder, thunder[Chorus]Thunder, feel the thunder (Thunder, thunder, thun-)Lightning then the thunder, thunder (Thunder, th-th-thunder, thunder)Thunder, feel the thunder (Thunder, thunder, thun-, thun-)Lightning then the thunder, thunder (Th-th-thunder)Thunder, feel the thunder (Thunder, thunder, thun-)(Never give up, never give up)Lightning then the thunder, thunder (Thunder, th-th-thunder, thunder)(Never give up on your dreams)Thunder, feel the thunder (Thunder, thunder, thun-, thun-)(Never give up, never give up)Lightning then the thunder, thunder (Th-th-thunder)(Never give up on your dreams)Outro]Thunder, thunder, thun-Thunder, th-th-thunder, thunderThunder, thunder, thun-Thunder, th-th-thunder, thunder(Woah-oh-ohh)Thunder, thunder, thun-Thunder, th-th-thunder, thunder(Woah-oh-ohh)Thunder, thunder, thun-Thunder, th-th-thunder, thunder

31.

Match the following. Plz answer if yo know, don't spam plz.

Answer»

it is of which subExplanation:FOLLOW me

32.

Write the name of a bipolar oxide​

Answer» PLEASE MARK me as brainlist Explanation:hope it HELPS you to understand
33.

). The pressure exerted by a body of mass 4kg on an area of 2mis (take g=10m/s) 10 N/mb) 15 N/mc) 20 N/md) 30 N/m​

Answer»

Static FRICTION is a self-adjusting force.The limiting VALUE of friction up to which the body stays at rest till it starts moving is given by, F s =μmgwhere μ is the coefficient of static friction.Below that limit, the frictional force is equal to the force applied.Here F s =0.8×4×10=32N ; g=10m/s 2 Whereas force applied is 19N less than the limiting value of friction.Hence Frictional force is 19N.

34.

electric potential at point p is 20v at a point Q is -20v .Then work done by external agent in carrying negative of charge from p to Q is​

Answer»

what is the SUBJECT PLEASE

35.

Do teeth cause a chemical reaction to take place?​

Answer» TION:The teeths are made out of SOLID calcium compound and this calcium compound is HIGHLY inactive for chemical reactions. The main purpose of the teeth is to grind, CUT the FOOD materials which we eat in our daily life. Apart from this,no other chemical reaction takes place by the teeth or on the teeth.
36.

Match the following...

Answer»

hmmExplanation:FOLLOW me SND MARK me as a BRAINLEST

37.

A car starts from point A, 25 km east of origin as shown in figure below. The car takes a turn at A and travels west with a constant velocity of 20 km/h for 1.5 h. What is the position of the car at end of the 1.5 h journey with respect to origin? Take the east direction to be the positive direction of the x-axis.

Answer»

tion:Let’s begin with a particle with an acceleration a(t) is a known function of time. Since the time derivative of the velocity function is acceleration, \[\frac{d}{dt}v(t)=a(t),\]we can take the indefinite integral of both sides, FINDING \[\int \frac{d}{dt}v(t)dt=\int a(t)dt+{C}_{1},\]where C1 is a constant of integration. Since \[\int \frac{d}{dt}v(t)dt=v(t)\], the velocity is GIVEN by \[v(t)=\int a(t)dt+{C}_{1}.\]Similarly, the time derivative of the position function is the velocity function, \[\frac{d}{dt}x(t)=v(t).\]Thus, we can use the same mathematical MANIPULATIONS we just used and find \[x(t)=\int v(t)dt+{C}_{2},\]where C2 is a second constant of integration.We can derive the kinematic equations for a constant acceleration using these integrals. With a(t) = a a constant, and doing the integration in (Figure), we find \[v(t)=\int adt+{C}_{1}=at+{C}_{1}.\]If the INITIAL velocity is v(0) = v0, then \[{v}_{0}=0+{C}_{1}.\]Then, C1 = v0 and \[v(t)={v}_{0}+at,\]which is (Equation). Substituting this expression into (Figure) gives \[x(t)=\int ({v}_{0}+at)dt+{C}_{2}.\]Doing the integration, we find \[x(t)={v}_{0}t+\frac{1}{2}a{t}^{2}+{C}_{2}.\]If x(0) = x0, we have \[{x}_{0}=0+0+{C}_{2};\]so, C2 = x0. Substituting BACK into the equation for x(t), we finally have \[x(t)={x}_{0}+{v}_{0}t+\frac{1}{2}a{t}^{2},\] by using formula do ans

38.

A meter stick is balanced on a knife edge at its center. When two coins, each of mass 5g we put one on top of the other at the 12cm mark, the stick is found to be balance at 45cm. What is the mass of the meter stick?​

Answer»

meter stick is balanced on a knife edge at its centerTwo COINS, each of mass 5g we put one on top of the other at the 12cm markThe stick is FOUND to be balance at 45cmToFind:Mass of the meter stickSolution:Total mass of the coins (m) = 10gMass of the stick = MThe moment of masses about C to balance the stick is:⇒ m × AC = M × CG⇒ 10 × 33 = M × 5⇒ 330 = M × 5⇒ M = 330/5⇒ M = 66g∴ The mass of the meter stick is 66g

39.

Iron is a better conductor of heat than copper.​

Answer»

Copper is a better CONDUCTOR than iron, which means current can FLOW easier (with LESS resistance) through copper. This is an inherent property of a material.

40.

Which element is used in atomic bombs ? as fuel ?​

Answer»

mmon are the ISOTOPES uranium-235 and plutonium-239 (REMINDER: isotopes are atoms of the same element that DIFFER only in their number of NEUTRONS).THANK you

41.

A parti ke moves along x axis such that it's velocity (v) varies with time (t) as v= (4t-t^2) the distance travelled by particle from t=0 to t= 6s ​

Answer» CHECK AIATS ANSWER KEY
42.

In whichofficially ?yearthe Paralympics World was used officially​

Answer»

in popularity, the event developed into the first Paralympic Games, which were held in Rome, Italy, in 1960. Taking place soon after the conclusion of the Olympic Games, the Olympic-style games for athletes with a disability attracted 400 PARTICIPANTS from 23 countries, who COMPETED in EIGHT SPORTS

43.

What is the valence of the central atom in ccl4?​

Answer»

xample, let's use carbon TETRACHLORIDE, CCl4. The single carbon atom contains four VALENCE electrons, and each of the four chlorine ATOMS contains seven valence electrons. THEREFORE, the number of valence electrons for this molecule is 4 + (4 × 7) = 32.❤

44.

If a force of F Newton moves a body with a constant V , the power delivered by it is - a) f/v b) FV c) F^2V d) v/f​

Answer»

( B) FV is the ANSWER of this QUESTION

45.

Find the order of magnitude of following data. i. Height of a tower 4325 mii. Weight of a car 789 kgiii.Charge on electron 1.6 x 10-19 C​

Answer» TION:i.question ANSWER is 3
46.

Define types of addition vectors with example​

Answer»

tion:There are 10 different types of vectors that are GENERALLY used in MATHS and science. To recall, vectors are the physical quantities which have magnitude as WELL as direction. The VARIOUS vector types that are covered here are as follows.Types of Vectors ListThere are 10 types of vectors in mathematics which are:Zero VectorUnit VectorPosition VectorCo-initial VectorLike and Unlike VectorsCo-planar VectorCollinear VectorEqual VectorDisplacement VectorNegative of a VectorAll these vectors are extremely important and the CONCEPTS are frequently required in mathematics and other higher-level science topics. The detailed explanations on each of these 10 vector types are given below.

47.

What if earth stop revoluting ? what will happen ?​

Answer»

If the Earth stopped spinning suddenly, the atmosphere would STILL be in motion with the Earth's ORIGINAL 1100 mile per hour rotation speed at the equator. ... This MEANS ROCKS, topsoil, trees, buildings, your pet dog, and so on, would be swept AWAY into the atmosphere.

48.

Starting from rest a cas a movingwith one loom acceleration​

Answer»

iiiiiiiiiiiii

49.

The adjacent diagram shows a heavy roller, with its axle at O, which is to be raised on a pavement XY. If there is frictionbetween the roller and pavement, show by an arrow on the diagram the point of application and the directionof force to be applied. "If pivoted at 0, now will it goup?" Please answer both parts!​

Answer» HELPS you very MUCH
50.

Sin33 x cosec 33= what​

Answer»

1Explanation:Sin33 X COSEC 33=sin33*1/sin33=1 ( COSECTHETA = 1/sintheta)