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.

the initial position of a particle is given by X1=2i-4j+k and the final position is X2=3i-5j+2k find the displacement

Answer»

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2.

A car battery of 12 v is connected in series with resistor of 0.1 ohm , 0.2 ohm , 0.2 ohm , 0.4 ohm and 6 ohm. How much current would flow through 6 ohm resistor​

Answer»

Explanation:SINCE all RESISTANCES are connected in series then Rnet=0.1+0.2+0.2+0.4+6=6.9ohmI =V/Rnet =120/69 =1.7391ohmsTherefore that same CURRENT will SLOW through entire circuit and in EVERY resistance

3.

The volume of cube of 1cm​

Answer»

Explanation:A cubic centimetre (or cubic centimeter in US English) (SI unit SYMBOL: CM3; non-SI abbreviations: cc and ccm) is a commonly used unit of volume that corresponds to the volume of a cube that measures 1 cm × 1 cm × 1 cm. One cubic centimetre corresponds to a volume of one MILLILITRE.

4.

The pressure exerted by a body of 8650 Pa. When it's placed on a wooden plank, the area of contact is 250cm x 10cm. Find the force exerted by the body. PLZ ANSWER QUICKLY.

Answer»

The pressure exerted by a body of 8650 Pa. When it's placed on a wooded plank,the area of contact is 250 CM and 10 cm.To Find :The force exerted by the body when the Pa is 8650 and the LENGTH and breadth are 250 cm and 10 cm Solution : The FORMULAE for Pascal= Force/Area→Pascal=Force /Area →Force=Pascal×Area →Force=8650× lengtg×breadth 8650×250×10cm² 8650×2000cm² 17300000dyne 173N

5.

Which is the Global problem of the world​

Answer»

Top-level ISSUE IssuesAIDS Prevention of HIV/AIDS, HIV and HIV/AIDS denialismAtomic ENERGY NUCLEAR weapons, nuclear wasteChildren Child POVERTY, Child LABOUR, Child abuse, Child mortality, Global educationDecolonization exploitation

6.

Feathers of birds have property to------------------- heat best answer will be marked as brainest

Answer»

the ANSWER isdashyour answer

7.

If an object exerts a force of 45N over a surface of dimension 15m X 20m, what is the pressure exerted by the liquid?

Answer»

0.05 PaExplanation:

8.

The. Magnification produced by a lens is+2 the image formed is

Answer»

Since the sign is negative, the image is real and INVERTED. Since the magnification is more than 1, it is enlarged. YES , it can be diminished . Because -2 means convex LENS .

9.

Balance the following chemical equations. (a) HNO3 + Ca(OH)2→ Ca(NO3)2 + H.(b) NaOH + H2SO4Na2SO4 + H2O(c) NaCl + AgNOS→ AgCl + NaNO3(d) BaCl, + H2SO,→ BaSO4 + HCIthehow balance this equation plz tell me​

Answer»

a)2HNO3 + Ca(OH)2 -> Ca(NO3)2 + 2H20b)2NaOH + H2SO4 -> Na2SO4 + 2H2Oc)NaCl + AGNO3 -> AGCL + NaNO3d)BaCl + H2SO4 -> BaSO4 + HCIExplanation:Only thing is to balance the number of molecules on both SIDES by adding coefficients in front of reactants and products.

10.

An anti -aircraft shell is fired vertically upwards with a muzzle velocity of 300 m s-1. If the shell is found at certain height attwo different times and is given by t2 – 60t + 500 = 0, Then time t in seconds is​

Answer»

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11.

 Define Renewable Energy Sources.Pen down their names.  On how many parts solar heating system consist of?Write down their names.  Define solar cells and solar panels.

Answer» FOSSIL fueltheir names-wind ENERGY,SOLAR energyETC.HOPE IT HELPS YOU A LOT.........
12.

Calculate the number of images formed when the angle between mirror is : 1. 0°2. 15°3. 30°4. 45°5. 60°6. 90° 7. 120°8. 180°pleass give correct answerwhosoever will give the correct answer I will thanks follow and mark as brainliest him/her..​

Answer»

Google itExplanation:it is the RIGHT ans Mark me as brainliest thank me FOLLOW me.....hhhahahaa

13.

Hey guys☺☺ explain charging by induction...​

Answer»

One method is known as induction. In the inductionprocess, a CHARGED OBJECT is brought near but not touched to a neutral CONDUCTING object. The presence of acharged object near a neutral CONDUCTOR will force (or induce) electrons within the conductor to move. There are a variety of METHODS tocharge an objecthope it's helpful

14.

Someone please answer this question it’s urgent please.

Answer» TION:helping her CHILD , kindness, Intelligence HOPE IT HELPS YOU .........!!PLEASE MARK AS BRAINLIST QUESTION ........!!IF IT IS RIGHT .......!!PLEASE MARK AS BRAINLIST QUESTION
15.

Momentum of a particle increaseb by 50%.By how much percentage kinetic energy of the particle increases​

Answer» SQUARE / 2 and INCREASED 50% is equal to 1.5 is equal to EMPTY is equal to (1.5 speaker per square is equal to 2.2 v square / 2 is equal to 2.2 v is equal to 5 - 1 1 crores into 100% the error in the a PARTICLE is 100% + then what is the error is the measurement of a pentagonExplanation:please MARK me brainlist
16.

Give one observation for each of the following: (a) Lead nitrate is strongly heated. (b) Silver nitrate is treated with potassium chloride. (c) Sodium hydroxide is added to copper sulphate solution. (d) Ammonium chloride is added to calcium hydroxide. (e) Silver nitrate is strongly heated. (f) Hydrated copper sulphate is heated. (g) Iron (III) chloride is treated with sodium hydroxide solution.

Answer»

Explanation:(a) brown fumes of nitrogen dioxide is SEEN(b) white precipitate of SILVER chloride is seen(c) a blue precipitate of copper hydroxide is seen(d) pungent smelling AMMONIUM is obtained(f) the solution CHANGES its COLOUR from blue to colourless(g) precipitate of iron hydroxide is formed

17.

Please answer this question it’s urgent Please .

Answer»

where is QUESTION.......

18.

In what principle do atom bomb works???​

Answer»

Nuclear fission produces the atomic BOMB, a weapon of mass destruction that uses power released by the splitting of atomic nuclei. When a single free NEUTRON STRIKES the nucleus of an atom of radioactive material like uranium or plutonium, it knocks two or THREE more neutrons free.#gundi..✌✌

19.

Image formed by plane mirror isreal and erect.​

Answer»

i DONT knowExplanation:jbsyahv xlhszhbxn

20.

(b) How much heat energy will be required to increase the temperature of the vessel inpart (a) from 25°C to 35°C ?​

Answer»

25degree to 35 DEGREE CELSIUS

21.

Two vectors A =5i +8j-7k and B=6i+3j-8k. Find subtraction of vectors? Type your answer

Answer» TION:VECTORS MY FAVORITE TOPICVERY EASY TOPIC
22.

Solve this physics question

Answer» TION:I THINK it B ...............
23.

Explain the different types of displacement​

Answer» TERMS are INTRODUCED followed by the two most common forms of displacement interferometry: homodyne and heterodyne. DOUBLE pass, differential and swept-frequency absolute distance INTERFEROMETERS are also COVERED.
24.

A fish looping up through the water sees the outside world contained in a circular horizon.if the refractive index of water is 4/3 and the fish is 12cm .below the surface, the radius of this circle in cm is

Answer»

it will be HELP you.thanks

25.

By quantisation of charge q=+- ne n can not have the valuea)1 B)0 c)1.5 d) 1.5×10^2class pluse two​

Answer»

tisation q= ne n does not INCLUDE FRACTIONS and decimal so the answer is option c If we LOOK on other options1,0, 150 are whole NUMBERS

26.

The force between 2 indentical changes separated by 1 cm isequal to 90 N . What isthemagnitude of two charges? ​

Answer» CE acting between two charges and separated by a DISTANCE is,where According to the question,HENCE (1) becomes,Hence the magnitude of the two charges is each.
27.

the two boys are pulling the bucket by force of 10N and 20N and as a result it what rise by an angle of π/4 determine the resultant force​

Answer»

I'm ANSWERING it in bookF1=10NF2=20Nresultant force=RR= root F1²+F2²+2F1F2 Cos tita Angle of RESULTANT force will be force APPLIED by first boy is 30Tan 90= B Sin O / A+B SinOInfinity = B Sin O / A+B SinOA+B Cos O = 0A= - B Cos ( not tita ) Cos (") = -A/B = -1/2( " ) = 120So, R= root 30²+60²+2×30×60×Cos120 R= 51.96N I'm ain't sure you check it again if it is Mark me as brainliest

28.

QUESTIONSName a device that helps to maintain a potential difference across aconductor​

Answer»

the DEVICE is CALLED as a VOLTMETER.

29.

Answer this please its physics​

Answer» B 25 s. HOPE so this HELPS you
30.

6. एक 400 किग्रा की लिफ्ट इस्पात की रस्सी से आधारित है, जोकि 800 किग्रा का भार सुरक्षित रूप से वहन कर सकती है। न्यूनतम दूरी जिसमें लिफ्ट कोरोका जा सकता है, यदि यह 1 मी/से से नीचे उतर रही है, होगी(g = 10 मी/से)(a)4 मी(b) 20 मी(d) इनमें से कोई नहींमी(c)20​

Answer» NONE of these
31.

A particle is at x = +5 m at t = 0, x = −7 m at t = 6s, and x = +2 at t = 10s. Find the average velocity of the particle during the intervals (a) t = 0 to t = 6s (b) t = 6s to t = 10s (c) t = 0 to t = 10s. plzz solve this....

Answer» VELOCITY = DISPLACEMENT / TIME
32.

Which of the prism is used to see infrared spectrum of light

Answer»

Rock salt prism is USED instead of glass prism to OBTAIN INFRARED spectrum because infrared RADIATIONS are ABSORBED by glass but not by rock salt.#gundi..✌✌

33.

A body covers 10m distance in 3rd second and 16m in 4th sec. find displacement in 5th sec.

Answer» 22 is the correct ANSWER plz mark as BRAINLIST if JL helps U
34.

A mixture of hydrogen and oxygen is enclosed in a rigid insulting cylinder. It isignited by a spark. The temperature andthe pressure both increase considerably.Assume that the energy supplied by thespark is negligible, what conclusionsmay be drawn by application of the firstlaw of thermodynamics?​

Answer»

The Work done on gas will be converted in the Internal ENERGY of Gas inside the ChamberExplanation:As dU = W + dQW INCREASES ,as CHAMBER is insulated DQ is constant.So,U increases.

35.

A spherical mirror produces an image of magnification of -1 on a screen placed at a distance of 50cm from the. mirror write the type of mirror distance of image from object focal length of the mirror draw a ray to show the formation of mirror in this case ​

Answer»

hey dude PLS CHECK the questionthe QUESTION is incorrect...

36.

1. An object has moved through a distance, Can it have zero dis- placement? If yes, support your answer with an example.Plz help me with this answer it's urgent ​

Answer»

object moved through a distance can have zero displacement.☛ We know that displacement is the shortest distance between INITIAL and Final POINT of moving object with particular direction.☛ An object which has covered a distance can have zero displacement.If it is come back to its initial point.For example:-A boy is walking in a SQUARE field of length 35 m .He start WALK from point A and after moving along all the corners of the park of point B,C,D he again come back to the point A.In the above statement, the total distance covered by boy is (35+35+35+35)m = 140 m and his displacement is zero because the shortest distance between initial and Final point is zero.

37.

What is meant by gravitational potential energy. Derive an expression for the same.​

Answer»

Distance MOVED d=h. Work done W=force x distance moved. =MGH. PE=mgh(gravitational potential energy) Gravitational potential energy is energy an OBJECT POSSESSES because of its position in a gravitational field.Explanation:HOPE It Helps You Follow Me #itzcutiepie

38.

I need The Answer Plz​

Answer» HELLO ! guys here's Ur ans..SECOND one is the correct one!( MOVING with constant velocity)..Hope ! it's helpful..THNX.. follow..if wanna support me..
39.

10 physicists and their contributions towards Physics.

Answer»

o the attachment for CORRECT answer HOPE it hekped uMark as BRAINLIEST PLZ...

40.

Plz do fast its urgent.........​

Answer»

i) TOTAL resisitance=R=RΩ+5Ω=7Ω(II)I=V/R=V/R=14÷7=7A(III)RESISTOR of 2ΩV=I×R₁=7×2=14VResistor of 5ΩV=I×R₂=7*5=35V

41.

two forces are in the ratio √5:√7 acting at angle of 2π have their resultant equal to 1453 N. Find the two forces​

Answer» TION:HOPE it helps youplease MARK as BRAINLIEST answer
42.

Light enters at an angle of incidence in a transparent rod of refractive index n. For what value of the refractive index of the material of the rod the light once entered into it will not leave it through its lateral face whatsoever be the value of angle of incidence? (1) n = 1.1 (2) n = 1 (3) n >√2 (4) n = 1.3

Answer»

ue should be more than the refractive INDEX of the MEDIUM into which the LIGHT ray is entering.

43.

a ball rotating in a circular path of radius 20 cm makes 70 revolutions in 22s find the centripetal acceleration

Answer»

tion:r = 20/100 m = 0.2md = total DISTANCE covered = 70* CIRCUMFERENCE of circle = 70 * 2πr = 140 * π * 0.2 = 28π metrev = speed = d/t = 28π / 22 = (28* 22)/(22*7) = 4 m/s(π=22/7)So, centripetal acceleration = v²/r = 4²/0.2 = 80 m/s²

44.

A car moving with uniform acceleration covers 200m in 2sec and 220m in 4sec. The velocity of the car at the end of 7th sec from start is

Answer»
45.

When a mirror is rotated through an angle x,the refracted ray from IT turun throughly an Angel of

Answer»

When a plane mirror is rotated through an angle 0, the reflected RAY turns through the angle 20. But the size of the image REMAINS UNAFFECTED only position changes.

46.

I) A mixture of hydrogen and oxygen is enclosed in a rigid insulting cylinder. It isignited by a spark. The temperature andthe pressure both increase considerably.Assume that the energy supplied by thespark is negligible, what conclusionsmay be drawn by application of the firstlaw of thermodynamics?​

Answer»

Thermodynamics is a very IMPORTANT BRANCH of both physics and CHEMISTRY. It deals with study of energy, the conversion of energy between DIFFERENT forms and the ability of energy to do work

47.

the radius of a hydrogen atom is 5.3×10^-11 while the radius of the lead atom is 18×10^-11.compare the two and find relation between them.​

Answer»
48.

A jogger runs in a straight line with an average velocity of 5 m/s for 4 min and then with an average velocity of 4 m/s for 3 min. (a) What is her total displacement? (b) What is her average velocity during this time?

Answer»

This will SURELY HELP you

49.

What are the fundemental properties of electic charge​

Answer»

The basic properties of electric charges are as FOLLOWS: Charges are additive in NATURE. CHARGE is a CONSERVED quantity. Quantization of charge.

50.

Why should a Carnot cycle have twoisothermal so adiabatic processes?​

Answer» MENT is that the heat transfers MUST be REVERSIBLE. That means the temperature of the SYSTEM has to be essentially the same as the RESERVOIR during the process, i.e., the system temperature has to be constant.itzDopeGirl