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.

40. Two identical metal balls with charge +20'and 4 Q' are some distance apart, F being the forcebetween them. They are first joined by aconducting wire, then removed. The forcebetween them now will be(1)F/2. (2)F/ (3)F/4 (4)F/8​

Answer»
2.

Each resistor is 2Ω fid resistance between A and B

Answer»

Each resistor = 2ΩResistor between A and B= ?Total RESISTANCE= 5 Each resistor= 2ΩTotal resistor= = 10Ω.hope it HELPS you...PLEASE mark it as a brainlist answer...also please rate THANKS and follow me...stay home STAY SAFE...

3.

Please help me.solve this please​

Answer»

what is that I can't UNDERSTAND what SUBJECT is it

4.

A non-polar dielectric is place in an electricfield (E), its induced dipole moment​

Answer»

the answer is "DECREASES"Hope it HELPS you frnd ❤️❤️Please mark me as the BRAINLIEST and THANK my answers##follow me if U haven't ❤️❤️✌️✌️

5.

In the given figure , fill in the blanks with the parts of the thermometer temperature corresponding to the part . the person who answers me correct and fast I will mark it the brainliest answer and I am not lying just please help me ♡♡♡♡and don't only watch the question please answer fast this question is very necessary for me please answer fast I request you all○♡○☆○☆♡○

Answer»

a is the part which is not filled with mercury and. a,b make the BULB of the thermometer

6.

What are gravitational waves and how they are produced?

Answer»

Gravitational waves are DISTURBANCES travelling at the SPEED of LIGHT through spacetime – caused by ACCELERATING mass. You can think of them as ripples in the fabric of the Universe PRODUCED by heavy objects changing speed.Hope it helps

7.

• Let us stretch a rubber band. Is there a change in its shape?• Is rubber band solid or liquid? Why?(What will happen if the stretching isstopped ? What will happen if thestretching is too much?)Take some finely powdered salt (notcrystals) and keep it in two different jars.• Which shape does the powdered salt take?• Can you say that salt is a liquid on the basisof change in its shape? Justify your answer.Take a sponge. Observe its shape.• Can you compress it? Is it a soild? Why?Think. Is anything coming out from thesponge when it is compressed.• Why can't you able to compress a​

Answer»

Change in shapeSolid. If band is streched too mich it will break. Shape of CRYSTALS DUE moisture of the air. No , because many particles of salt have stuck together to form crystals.A sponge is a SOLID and it can be COMPRESSED. When a sponge is compressed air is SQUEEZED out of it.

8.

An x-rays beam having wavelength 0.300 nm is scattered from the surface of a material. Determine the wavelength for the incident beam if the angle of scattered beam is 70° tothe incident beam.mm(A) 6.82x10-10(B) 5.85 x 10-10(C) 2.98x10-10(D) 1.52 x 10-10m​

Answer»

tion:Check out the answer. Each and EVERY DATA are CLEARLY mentioned in it. Please give the REPLY as early as possible. Thank you.

9.

You are consulting with a home owner about sizing a PV system for their house. They share their utility bill with you that contains the electrical usage table below. What is the total annual electrical energy usage at this location? Month kWhDecember 350January 420February 370March 350April 320May 360June 570July 950August 860September 630October 605November 455December 420​

Answer»

6,660 is the FINAL ANSWER

10.

an ant is moving on a semicircular track from A to B . Radius of track is R. then ratio of displacement of ant and distance covered by ant is​

Answer»

73l ISKA ROTA do is zeuwiw2x2xxww

11.

In the equation of motion S= ut+1/ut square,S stands for​

Answer»

s stands for distance U stand for intial SPEED

12.

Which one is the odd one out:push,pull,catch,squeeze,stretch

Answer»

I THINK CATCH is ODD ONE odd one

13.

What is mean by inerita?​

Answer»

The tendency to RESIST CHANGES in their STATE of motion EXPLANATION:

14.

. A wire of resistance R is turned & given a shape of a triangle. The battery is connected across its one side. Find the change in its resistance as compared to the original wire.

Answer»
15.

A car starts from rest and moves along the x-axis with constant acceleration 5 ms2 for 8 seconds. If it then continues with constant velocity, what distance will the car cover in 12 seconds since it started from rest?

Answer» 480M Explanation:Given :- acceleration (a) = 5m/s² time = 8sec u (initial velocity) =0 We KNOW , V = u + at v = 0+ 5* 8 v = 40m/s Now according to question at same velocity v = 40m/s in time 12sec . what will be distance So, we know that , velocity = DISPLACEMENT/time 40 = displacement / 12 displacement = 40*12 distance/displacement = 480m Answer ________________________________Hope it's helpful
16.

In the network shown in the figure, each of resistance is equal to 2 0. The resistance between Aand B is.​

Answer» EXPLANATION:If we rearrange the CIRCUIT it will take form of balanced wheatstone bridge and no CURRENT will flow through CD resistorso the circuit becomes simple and the net RESISTANCE will be 2Ω
17.

Velocity of a body is 36km/hr. then it's value in m/s​

Answer» EXPLANATION:→ Velocity of the body = 36 KM/h→ Value in m/s = ? ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬※ To convert, km/h to m/s we have to multiply the number by 5/18.※ Why we need to multiply it by 5/18? = It is because, 1 km = 1000 m whereas 1 hr = 3600 s. So, when we will divide both of them := = ※ That is why, we used to multiply the number by 5/18.▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬→ Now, we have the QUESTION to find the value of 3600 km/h in m/s.→ As MENTIONED above :-= 1 km/h = = = ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬
18.

Cuial lu elipselej hyperbola9.Figure shows electric lines of force due to point charges q, and q 2 placed at points A and Brespectively. The nature of charges is[a] q1 is positive, q 2 is negative[b], and q 2 are positive[el 91 and q 2 are negative[d] q, is negative and q 2 is positive [e] none of these​

Answer»

what have u WRITTEN EXPLANATION:can't understand a thing ALSO

19.

A plane area of 0.5m2is situated in a uniform magnetic field of 2wb|m2such that the normal to the plane makes an angle of 60 degree woth the field the magnetic flux through the area os eqial to ?​

Answer»

0.5 weberExplanation:GIVEN:A=0.5m2B=2wb/m2Theta =60Cos60=1/2Phi=BAcostheta=0.5*2*1/2=0.5

20.

in xerography the paper on which print is taken is positively charged by corona wires. what is the purpose to make it positively charged?

Answer»

This may help youExplanation:The human-end of making a copy begins with a few basic steps:Open the copier lidPlace the document to be photocopied face-down on the glassSelect the options you want (number of pages, enlargements, lighter/darker)Press the Start buttonWhat happens inside the copier at this point is amazing! At its heart, a copier WORKS because of ONE basic physical principle: opposite charges attract.As a kid, you probably played with static electricity and balloons. On a dry winter day, you can rub a balloon on your sweater and CREATE enough static electricity in the balloon to create a noticeable force. For example, a balloon charged with static electricity will attract small bits of paper or particles of sugar very easily.A copier USES a similar process.Inside a copier there is a special drum. The drum acts a lot like a balloon -- you can charge it with a form of static electricity.Inside the copier there is also a very fine black POWDER known as toner. The drum, charged with static electricity, can attract the toner particles.

21.

Collect some objects like cork, all pin, rubber, piece of wood, piece of plastic at your home. Take water, oil, milk, sugar solution in separate beakers. Place each object one by one, on the surface of liquids taken into the beakers and see whether the object sinks or floats in that liquid. Record your observations and based on them, compare the densities of the object and liquid.

Answer»

In WATER pin FLOATS,rubber SINKS,PIECE of WOOD floats,piece of plastic at your home floatsIn oilPin floats,rubber floats,piece of wood floats,piece of plastic at your home floats In milkpin floats,rubber floats,piece of wood floats,piece of plastic at your home floats

22.

In parallelogram , if one diagonal gives the sum of vectors , what does the other diagonal will be ?

Answer»

Let θ be the ANGLE between a & b The long DIAGONAL of the parallelogram is the VECTOR sum of two SIDES and short diagonal is vector difference of two sides.Given... d 1 = a + b , d 2 = a − b d 12 =a 2 +b 2 +2abcosθd 22 =a 2 +b 2 −2abcosθd 12 +d 22 =2(a 2 +b 2 )a 2 +b 2 =(d 12 +d 22 )/2

23.

Help me please please help me​

Answer»

tion:35 Nthe MAXIMUM POSSIBLE force is applied when they both are in same DIRECTION . And if they are in same direction then the total force EXERTED is their sum in this case maximum force is 35 N irrespective of its weight

24.

Three charges + 20 esu, -25 esu and +50 esu are placed at the points A, B and C respectively on a straight line. What force willact on the charge placed at B ? Given AB = 10 cm; BC = 15 cm.​

Answer»

i solved it (easy ONE) here are the snaps ...i numbered corners as 1,2,3 & 4i CALCULATE FORCE on 2 due to 1,3 & 4F21 = force on 2 due to 1F23 = force on 2 due to 3F is RESULTANT of F21 & F23 directed towards diagonaladd them by vector resultantF24 is also in the same DIRECTION along diagonalso net forceFnet = F24 + F

25.

An electrical appliance which operates at 110 volts and 5 amps consumes ___ watts.The southern Midwest of the United States has an insolation value of 5.5 full-sun-hours. We would expect Fairbanks, Alaska to have an insolation value that is ___ that of the southern Midwest. Greater thanAbout the same asLess than​

Answer» 110 ohmsExplanation:v=IR where,V=110,I=5
26.

Derive the expression for current in terms of drift velocity of the electrons

Answer» TION: this will HELP ufollow me
27.

A bumer supplies heat energy at a rate of 400 J s! Find the specific heat capacity of solid of mass 150 g, if its temperature rises by 180°Cin 4 minutes.A solid of mace​

Answer»

Here is your VALUABLE ANSWER THANK you

28.

The probability of taking a step forward by a man is 1/2. Calculate the probability that he has moved 4 steps forward in 10 steps.(a)102415(b)1281(c)23(d)4​

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d)4Explanation:HOPE it helpsthanks

29.

Find the potential difference if 25 J work is done to carry 12 V❎❌✖Don't Spam✖❌❎​

Answer»

your QUESTION is wrongto CARRY 12cExplanation:V=W/Q=25/12

30.

Find the resistance ​

Answer» PLEASE FOLLOW me and mark me as branliest i am SURE to ANSWER your question
31.

Wht is the resistance please give solution how to solve it​

Answer»

tion:the ABSORPTION of motion of ELECTRONS is CALLED resistancethis is the MEANING of ResistanceI don't know how is problem

32.

0.085 kg of copper of specific heat capacity 100 cal kg! °C- and at 20°C is heated by a burner for one minute, which supplies heat energyat a rate of 12 calories /sec. Calculate the final temperature of copper.​

Answer»

Explanation:CALORIES supplied in ONE minute = 12 X 60 = 720  caloriesmsΔt=calories0.085 x 100 xΔt =720Δt = 720x 1/100 x 1000/85Δt will be 84.7°cfinal temperature is 20°c + 84.7°c = 104.7°c

33.

Plzz solve this.......​

Answer»

d is a CORRECT ANSWER HOPE it HELPS you

34.

Work largest planet name​

Answer» JUPITER is ANSWER ❤Hope it HELPS you❤
35.

The equivalent resistance of two resistors connected in series is 6 ohm and their parallel equivalent resistance is 4/3. what are the value of resistors​

Answer»

☆□☆□☆□☆□☆□☆□☆□☆The EQUIVALENT RESISTANCE of TWO resistors connected in series is 6 ohm and their PARALLEL equivalent resistance is 4/3. what are the value of resistors□☆□☆□☆□☆□☆□☆□☆□☆□☆□☆□☆────────────────────────────────────────────

36.

An electrical appliance which operates at 110 volts and 5 amps consumes ___ watts.​

Answer»

voltage×current, P= 110×5 , P is 550 WATT

37.

2. An object is pushed with a rod. The object starts moving. Is this force a contact or noncontact force? Explain answer for class 8​

Answer» CONTACT force because the OBJECT is in physical contact with ROD plz mark me as brilliant
38.

A truck is moving at a speed of 50 ms-1 Find stopping distance if it retards at a rate of 20 m/min.

Answer»

tion:ANSWERAvg SPEED × total times = total DISTANCE 20×25=500Since ACCELERATION in the 1st interval is same as deceleration in the 3rd interval and deceleration is from the same velocity ACHIEVED after acceleration, t 1 =t 3 s 1 = 21 ×5t 12 s 2 =(5t 1 )t 2 s 3 =(5t 1 )×t 3 − 21 ×5×t 12 =(5t 1 )×t 1 − 21 ×5×t 12 s 1 +s 2 +s 3 =5t 1 t 2 +5t 12 ⇒5t 12 +5t 1 t 2 =500−−−−12t 1 +t 2 =25−−−−2Solving (1 ) and (2) ⇒t 1 =5,t 2 =15sec

39.

What will be the equivalent resistance of circuit shown in the figure between points A and D?​

Answer»
40.

Convert 1km h-1 into ms-1​

Answer» 1 KM per hour=5÷18 m per secExplanation:hope this helps U
41.

At what distance from a concave mirror of focal length 10cm should an object be placed so that its real image is formed 20 cm from the mirror with ray diagram ​

Answer»

Explanation:1/f=1/u+1/v1/10=1/u+1/201/u=1/10-1/201/u=1/20u=20cmHence object must be placed at 2f to PRODUCE a REAL image ALSO at 2f.

42.

What are the two types of spherical mirrors....​

Answer»

cancaveconvexExplanation:HOPE it HELPS you

43.

Calculate the volume of wood of mass 6000kg, when density of wood is 0.8 g cm^3

Answer»

this is the CORRECT ANSWER

44.

Ques-Why does a tightly fixed lid of a bottle come loose when kept under hot water?​

Answer»

al lid expands at a faster rate than the glass JAR, which forms a gap between the METAL lid and the glass jar. This gap grows as the metal lid expands, until the lid POPS OPEN from the jar.

45.

Note: - You are attempting question 2 out of 12An object A moving with a speed 0.65c relative to earth and another object B movingwith a speed 0.75c relative to the object A. Calculate the speed of the object B relative tothe earth if these objects travelling in same direction.(a) 1.000(b) 0.20c(c) 0.94c(d) 0.10c​

Answer»

(a) 1.00 cExplanation:You just have let that the OBJECT A is moving with 0.65c in relative to another object which itself is moving with 0.75c relative to Earth. Please NOTE that this speed of A is not POSSIBLE according to quantum mechanics.If both objects are moving in same direction, then speed of object B with respect to Earth will surely become 0.65c + 0.75c i.e., 1.40cBut according to Einstein, NOTHING can travel faster than the speed of light, 1.40 c speed isn't possible itself. HENCE, the object B will appear as if to moving at the speed of light, from Earth.

46.

two metallic wires a and b are connected insecond wire a has lenght l and radius r, while wire b has lenght 2l and radius 2r. find the ratio of total resistance of series combination and the resistance of wire a, if both the wires are of same material?

Answer»

Explanation:Let the resistivity of both the WIRES be 'ρ'. The resistance of the wire A is given as  Ra = ​  The resistance of the wire B is given as Rb =                                                                                                                                                               =  Now when the resistance are connected in SEIRES is R=Ra + Rb ​​  . That is, R = So, the required ratio is R : Ra =  :   Therefore, R : Ra +  3:2Hence, the ratio of the RESISTANCES in SERIES and only wire A is 3/2.

47.

a crowbar having the length of 1.75m is used to balance a load of 500N.if the distance between the fulcrum and the load is 0.5m what is the effort applied to balance the load.

Answer»

LA=load ARME= EFFORT EA= effort ARM

48.

A cell of emf 1.5 v of internal resistance of 1ohm is the resistors of 20 ohm and 4 ohm in series draw it's diagram ​

Answer» SORRY I don't KNOW this ANSWER.. !!!!
49.

Iron An electric a resistance20 ohm takes a current of 5 mphereCalculate the heat developed in 30 second​

Answer»

15000 joule EXPLANATION: Givenresistance(R) = 20OHM current (I)= 5A. time (t) = 30sec we KNOW that H = I^2Rt. now put the given value , we get h = 5^2 x 20 x 30 = 15000joule hope it helps youmark me as a brainliest

50.

a crowbar having a length of 1.75 is used to balance a load of 500N IF THE DISTANCE BETWEEN THE FULCRUM AND THE load is 0.5m what is the effort applied to balance the load

Answer»

L=load LA=load ARME= EFFORT EA=effort ARM