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.

Dimensional formula of coefficient of viscosity?​

Answer»

tion:Dimensional FORMULA of Area= M0L2T0. Dimensional Formula of distance= M0L1T0. Dimensional Formula of velocity= M0L1T-1.Or, η = [M L T-2] × [L] × [L2]-1 × [L1 T-1]-1 = [M1 L-1 T-1]. Therefore, the Coefficient of Viscosity is dimensionally REPRESENTED as [M1 L-1 T-1].

2.

Find the angular momentum and torque of a rotating skew rod and explain the result​

Answer»

m rotating with an angular momentum in presence of a torque suffers a change in the angular momentum and the rate of change of angular momentum is DIRECTLY proportional to the torque ACTING on it.If I be the moment of inertia of the system and ω be the angular VELOCITY then angular momentum L=IωRate of change of angular momentum provided the shape of system does not change is :Rate of change of angular momentum provided the shape of system does not change is :τ= dt/d (Iω)=I dt/dω =Iαα is the angular ACCELERATION and τ is the torque.α is the angular acceleration and τ is the torque.Dimension of Torque is [ML² T −²] and its unit is Newton- metre (N⋅m).hope it helps U #NAWABZAADI

3.

Check the correctness of F=Gm1m2/r2 Is it dimensionally correct ?​

Answer»

Given equation is DIMENSIONALLY incorrect. Explanation:Your QUESTION:- To CHECK the given equation is dimensionally correct or not?Your solution:-Dimension of force=[M^1 L^1 T^-2]Dimension of m1 and m2= [M^2]Dimension of r^2= [L^2] (-ve indicates it is in division)Dimension of G=0 (As it is CONSTANT)Force=mass×acceleration [M^1]×[L^1 T^-2]: Force=Gm1m2/r^2[M^1 L^1 T^-2]= [M^2]/[L^2][M^1 L^1 T^-2]= [M^2 L^-2 T^0]LHS≠RHSHence, Given equation is dimensionally incorrect.

4.

a car travelling at a speed of 15m/s in brought.is rest in 90s.find the retardation and distance travelled by the ear before coming in rest​

Answer»

The retardation is and distance travelled is 675 m. Step-by-step explanation: SPEED of the car : 15 m/s BOUGHT to rest in : 90 SECONDS Retardation : ?? Distance travelled : ?? Retardation:Retardation = Distance travelled: Distance travelled = 675 m. Therefore, the retardation is and distance travelled is 675 m.

5.

What could be resons for defference in coldness ​

Answer»

Some are minor annoyances while others may be a SIGN of a serious underlying condition.ANEMIA. Anemia is when you don't have enough healthy red blood CELLS. ...Hypothyroidism. ...Atherosclerosis. ...Raynaud's DISEASE. ...Diabetes. ...Anorexia. ...Low body weight. ...Poor circulation.Explanation:MARK as brainlist

6.

The vapor pressure of a solution containing a non-volatile solute is directly proportional to

Answer»

The change in the vapor pressure caused by the addition of a non-volatile solute is MONITORED by Raoult's law. Raoult's law states that the vapor pressure of a SOLUTION is DIRECTLY proportional to the mole FRACTION of the solvent.Explanation:hope it helps PLZ mark me as brainliest ☺️☺️☺️☺️

7.

The amperes law is used to measureSelect one:Magnetic fieldNuclear FieldGravitational FieldElectric Field​

Answer» TION:Amperes law is USED to measure MAGNETIC FIELD
8.

What is hybridisation?​

Answer»

Hybridisation - (GENETICS) the act of MIXING different species or varieties of animals or plants and thus to produce HYBRIDS. crossbreeding, hybridization, hybridizing, interbreeding, crossing, cross.

9.

5600000000 m is equivalent to: Select one:56E8 mO All of these5.6 x 10^9 m5.6E9 m​

Answer»

all of these is the ANSWER

10.

Optics Student Name:Roll No.std:Institute Name.In which of the following instruments, the objective has a large focal length and a very large eyepiece?2 pointsA simple microscopeA Compound microscopeTelescopeInterferometerA thin converging lens and a thin diverging lens of each focal length 10 cm are placed coaxially 5cm apart. What will be the focal length of the combination?2 points+10cm-10cm+20cm-20cm​

Answer»

not UNDERSTANDING your QUESTION PLEASE give neatly please FOLLOW

11.

A prism having retracting angle 5 degree has refractive index 1.5 the angle of minimum deviation is - ​

Answer»

Let δ m be the ANGLE of minimum deviation A=δ m A=δ m μ= sin( 2A )sin 2(A+δ m ) 1.5= sin( 2A )sin( 2A+A ) 1.5= sin( 2A )sin2( 2A ) = sin( 2A )2SIN 2A COS 2A 1.5=2cos 2A 0.75=cos 2A 2A =cos −1 (0.75)2A =41 o A=82 o

12.

Why should people look for alternative sources of fossil fuels ?​

Answer»

As FOSSIL fuels on EARTH are ending , we need an alternate fuel to cope - up with the demand for energy , i.e , fuels . Without alternate resources for fuels, the world would be deprived of basic needs such as ELECTRICITY , POTABLE WATER and manufactured goods .

13.

2. The organization who given table tennis. 1. The place where table tennis originat3. Another name of table tennis.4. The first ball of table tennis.5. The first name of table tennis.​

Answer»

1Explanation:Because ORGANIZATION MEAN ORIGINATE

14.

One wave is formed is formed in 0.01 seconds. How many waves will be formed in 1 second? What is the time period and frequency of the wave Please Answer

Answer»

In ONE second 1/0.01 = 100 waves will FORM 100 waves PER second is the frequencytime PERIOD is 0.01s

15.

Write a expression of vehicle along a cercular track​

Answer»

When a boby (VEHICLE) travelling along a circular path means circumference of a circle then the DISTANCE travelled by it be2\pi \times r2π×rThe time taken to complete the revolution is called Time period.We KNOW that,VELOCITY = distance or displacement / Time takenv=d/tNow, put the value of d that is circumference of circlewe got:v = 2\pi \times r \: \: \div \: \: tv=2π×r÷t

16.

What is the moment of inertia of a square sheet of side 1 and mass per unit area u about an axispassing through the centre and perpendicular to itsplane(B)12(A) 412ul6Mul"(C)(D)126​

Answer»

μl 4/6  EXPLANATION:Given that, SIDE = L Mass per unit area = μ Total mass M=μl 2  Now, the moment of inertia is I=   MR 2/12  By perpendicular axis theorem I=I  x +I  y ​ I=2I  x ​ I=2× μl 2  ×l  2/12 I=   μl  4/6  Hence, the moment of inertia of a square sheet is   μl 4/6  ​Hope this helps you:)

17.

Who is the current prime minister of India​

Answer»

a Modi is the CURRENT prime minister of India...This is UR ANS...Hope it's helpful to you....

18.

An object is thrown upwards to a certain height. It takes t time to reach its maximum height. write its three equations of motion when the object reach its half height.An. object is thrown upwards to a certain height. It takes t time to reach its maximum height. write its three equations of motion when the object reach its half height. ​

Answer» TION:all the TREE EQUATION is same MGH
19.

VICLASS PHYSICS Le TECHNOJ Magnitude of average velocitya) Equalb) Greater thanKINEMATIESmagnitude of average speedc) Less than d) NoneLevel -The displacement - time graphs of two bodies A and B are Op and OQ respectively. I POX is60° and QOX is 45°, the ratio of the velocity of A to that of B isa) 3:2b) 3:1c) 1:13d) 3:1Aplayer can impart initial velocity of 16ms to the football The separation between the ball and the​

Answer»

tion:ANSWER:the personnel of a business or organization, regarded as a SIGNIFICANT ASSET in terms of skills and abilities."our core skills are in BUILDING pan-European businesses and managing human resources"the department of a business or organization that deals with the hiring, administration, and TRAINING of staff.

20.

The mass and diameter of a planet are three times that of earth. what is Acceleration due to gravity on the surface of the planet? ​

Answer»

The mass and diameter of a planet are 3 times that of the earth, what is the ACCELERATION due to gravity on the SURFACE of planet (given 'G' on the surface of earth is 9. 8m/s2).EXPLANATION:hope it HELPS you dear bhai

21.

Write the dimension of force and energy​

Answer»

Every MEASUREMENT has TWO parts. The first is a number (n) and the next is a unit (u). Q = nu. For Example,the LENGTH of an OBJECT = 40 CM. The number expressing the magnitude of a physical quantity is inversely proportional to the unit selected. If n1 and n2 are the numerical values of a physical quantity corresponding to the units u1 and u2, then n1u1 = n2u2. For Example,2.8 m = 280 cm;Explanation:

22.

PAGE NO DATEFindthe potentical difference if no J.work in ecquiaeed toof chargethe charge loc​

Answer»

what EXPLANATION:SUBJECT BATAO TOH batege JALDI

23.

The motion of particles about their mean position in regular intervals of time is called. Select one:A. WaveB. GravitationC. FrequencyD. Resistance​

Answer»

frequencyhope it helpsplz MARK me BRAINLIEST

24.

विधुत विभव से आप क्या समझते है

Answer»

किसी इकाई धनावेश को अनन्त से किसी बिन्दु तक लाने में जितना कार्य करना पड़ता है उसे उस बिन्दु का विद्युत विभव (ELECTRIC POTENTIAL ) कहते हैं। दूसरे शब्दों में, किसी बिन्दु पर स्थित ईकाई बिन्दुवत धनावेश में संग्रहित वैद्युत स्थितिज ऊर्जा, उस बिन्दु के विद्युत विभव के बराबर होती है।

25.

Write newtons all equations of motion dont't copy paste

Answer» NEWTON's FIRST EQUATION of motion,v=u+atNewton's SECOND equation of motion,s=ut+1/2at square.Newton's THIRD equation of motion,v square=u square +2asv=velocityu=initial velocitys=distance/displacementa=accelerationt=time
26.

What remains unchanged when a sound wave goes from one medium to other ?​

Answer»

When a sound wave GOES from one MEDIUM into another, why does its frequency REMAIN unchanged? ... The frequency of sound depends UPON the source of sound, not the medium of propagation. Hence, it does not CHANGE.

27.

A squirre A bus covers a distance of 250km from Delhi to Jaipur towards west in Shrs in the morning &returns to Delhi in the evening. Find a) Average speed and b) Average velocity of the bus for thewhole journeyIf trouels another distance of​

Answer»

avg speed = (speed1+speed2)/2speed1= 250/5= 50 m/sspeed 2= 250/5= 50m/saverage speed=( 50+50)/2= 50 m/savg velocity =0 because the displacement is O as the bus came back to DELHI COVERING the same distanceExplanation:AVERAGE velocity = 0 because the displacement is O as the bus came back to Delhi covering the same distance

28.

What is meant by non-contact force..! ​

Answer»

Magnetism is an example of a non-CONTACT or action-at-a-distance force. These are forces which can act on an object WITHOUT being in physical contact with it. The force of gravity is another example. Thus, gravity will pull a raindrop down to EARTH without any TANGIBLE physical link between the Earth and the dropHope this helps you❤

29.

Q. ] In a Wheatstone's meter-bridge experiment, the null point is obtained in middle one third portion of wire. Why is it recommended?​

Answer»

The null point should be obtained PREFERABLY at the middle one-third portion of the wire of METERBRIDGE so as to GET maximum accuracy. In this case the ratio arms are nearly equal and the END resistances of copper strips also PRODUCE the least effect. Hence the meterbridge is most sensitive.

30.

A boy is running on a plane road with velocity v with a long hollow tube in his hand . Water is falling vertically downward with velocity u . At what angle to the vertical , he must incline the tube so that the water drops enter it without touching its sides .​

Answer» TION:This is the RIGHT ANSWER and HOPE this HELPS you.
31.

What is Fleming's left hand rule give derivation​

Answer» PHOTOSYNTHESIS is the PROCESS by which PLANTS MAKE their own FOOD
32.

Mass of moon is almost '10%' lesser than that of the earth. then, the gravitational force due to moon on the earth is how much then that on moon due to the earth? ​

Answer» F EARTH's GRAVITATIONAL forcemark BRAINLIEST please✌
33.

3 resistors of 3 Ω, 6 Ω and 8 Ω are in series with a 2V battery. Across which resistor is the potential difference minimum?

Answer»

the CONCEPT of OHMS Law is used. According to the ohm's law the current passing through a metallic element is DIRECTLY proportional to the potential difference across its and provided the temperature remains constant.✏️The total potential difference across the combination of resistor in series is equal to the SUM of potential difference across the individual resistor.✏️The current across each resistor remains the same in series arrangement.The total resistance in series arrangement is given by :-Now we will calculate the total resistance →Total voltage is given as 2 V✿According to ohm's Lawwhere v denotes voltageI denotes currentR denotes resistance→V= IR →V= 0.117× 6→V= 0.702 v→V= IR→V= 0.117 × 8→v=0.936 v______________________✷Verification----------------------------------------

34.

Please help its urgent​

Answer» OK Join kar NA KA baad KYA kar na hai
35.

Planner vector defination​

Answer»

Coplanar vectors are the vectors which lie on the same plane, in a three-DIMENSIONAL space. These are vectors which are parallel to the same plane. We can always FIND in a plane any TWO random vectors, which are coplanar. Also learn, coplanarity of two LINES in a three dimensional space, represented in vector form.Explanation:Mark me as the BRAINLIEST..

36.

Explain an experiment to show how electroplating is done​

Answer»

⤵Dip the copper strip and object to b electroplated in the beaker CONTAINING copper sulphate solution . Leave the SET up for half an hour . U will c a deposit of REDDISH broun coating on the object . When electricity is passed through the solution , copper IONS move towards the cathode and get reduced to copper metal .

37.

Q : show that mechanic energy (=ke+pe) of a falling body remains constant....??? pls tell ??​

Answer»

Energy can neither be created nor destroyed, it can only be transformed from one form to another. The total energy before and after transformation remains the same. A body of mass'm is raised to height b. At A its potential energy is maximum and kinetic energy is 0 as it is stationary. When body is allowed to free fall and it reaches at B, h is decreasing HENCE potential energy decreases and V is increasing hence kinetic energy is increasing. When the body is about to reach the ground level, h = 0, v will be maximum hence kinetic energy > potential energy ∴ Decrease in potential energy = INCREASE in kinetic energy This shows the CONTINUAL transformation of gravitational potential energy into kinetic energy. Potential energy + Kinetic energy = Constant (MECHANICAL energy) Explanation:HOPE it helps

38.

What is the estimated size of the biggest star of this UNIVERSE!​

Answer»

The largest KNOWN STAR in the universe is UY Scuti, a HYPERGIANT with a radius around 1,700 times larger than the sun.Explanation:hope it will help U

39.

PHYSICS 5. The kinetic friction coefficient is uk Question 5 A. Equilibrium is equal to the friction coefficient B. The resting state is less than the friction coefficient C. The rest level is higher than the friction coefficient D. Twice the resting state friction coefficient​

Answer» SORRY i don't KNOW. sorry
40.

The following instrument is used to measure small distances. A. Screw gauge B. Vernier scale C. 1 and 2 D. Nothing​

Answer»

scaleHope it HELPS you ...

41.

Suggest the formula for the oxide of Nitrogen​

Answer»

oxides of NITROGEN :- NITRIC OXIDE( NO) and nitrogen DIOXIDE(NO2) Explanation:oxides of nitrogen are a MIXTURE of gases that are composed of nitrogen and oxygen.

42.

How is M.C.B superior to the fuse wire ???¿​

Answer»

e more sensitive to current than fuses. They immediately detect any abnormality and switch off the ELECTRICAL CIRCUIT AUTOMATICALLY. This prevents any permanent damage to electrical appliances and human beings. The MCB DETECTS any excess current and breaks the circuit.Thnku :)

43.

What is the circulation of magnetic feild.explain?​

Answer»

An electric current (or a time-varying electric field) in space will GENERATE a MAGNETIC field that appears to "FLOW", or circulate around the current (or time-varying electric field) similar to how WATER FLOWS around the axis of a vortex.

44.

আবিদ একটি বইয়ের উচ্চতা একটি স্কেল দিয়ে মাপতে চেয়েছিল কিন্তু সে সঠিক মান পাচ্ছিল না তাই তিনি 20টি ভাগ করা একটি স্লাইড কেলিভার্স ব্যবহার করল যার মৌল স্কেল পাঠ 4.7m.m এবং ভার্নিয়ার স্কেল পাঠ 13m.m। তামিদ সাহেব আরও সুক্ষ মান চায় তাই সে একটি স্ক্র গজ ব্যবহার করল যার মৌল স্কেল পাঠ 5m.m এবং বৃত্তাকার স্কেল পাঠ 30m.m। অন্যদিকে আবিদাল একটি রুলার স্কেল দিয়ে একটি বাক্সের দৈর্ঘ্য,প্রস্থ ও উচ্চতা যথাক্রমে 22cm, 16cm এবং 11cm। আবিদ ও তাহমিদ সাহেবের প্রাপ্ত দৈর্ঘ্য কত হবে? আবিদ কেন সঠিক মান পাচ্ছিল না এবং আবিদাল পরিমাপের শতকরা আপেক্ষিক ত্রুটি কত হবে?​

Answer» PLEASE SEND this question in English or HINDI LANGUAGE because I am not understanding what is the question
45.

Draw velocity graph for a body that has initial velocity u and is moving with uniform acceleration 'a' use it to derive v=u+at , s=ut/2at² and v²=u²+2as ​

Answer» IAM drawing in ROUGH BOOK wait a minute
46.

Scattering problem is concerned with scattering of a body by a_force.Select one:CyclicCenterPlaneZero​

Answer»

dydrhshtfiExplanation:SCATTERING PROBLEM is CONCERNED withscattering of a BODY by a_force.Select ONE:CyclicCenterPlaneZerogmbd

47.

Describe Iupsc nomecleture system​

Answer»

In chemical nomenclature, the IUPAC nomenclature of ORGANIC chemistry is a method of naming organic chemical compounds as recommended by the International Union of Pure and Applied Chemistry (IUPAC). ... IUPAC NAMES can sometimes be SIMPLER than older names, as with ethanol, instead of ethyl alcohol pls FOLLOW my FOLLOWING

48.

.You have just purchased a chain claimed to be pure gold. The chain weighs 60g and it displaces 4.0cm3 of water when fully immersed. Is it pure gold? ( s.g of gold=19. 3)

Answer»

he chain weighs 60g and it DISPLACES 4.0cm³ of water when fully immersed.To find:If this gold is pure or not ?CALCULATION:First of all , try to remember ARCHIMEDES' PRINCIPLE : Since the chain displaces 4 cm³ of water UPON being immersed completely, we can say that the volume of the chain is 4 cm³The above statement is as PER the principle.Now, the weight of the chain is 60 grams.Let density of gold (as calculated practically) be .So, the calculated density of the chain is less than the actual density of gold ( 19.3 g/cm³).Hence, the chain is not made up of pure gold.

49.

What is meant by pitch ? ​

Answer»

in music, position of a single sound in the complete range of sound. SOUNDS are HIGHER or lower in pitch ACCORDING to the frequency of VIBRATION of the sound waves producing them.

50.

Describe some experiment to show that the magnetic field is associated with an electric current.➳ REQUIRED GOOD ANSWERis nursery ke bacce ke help krdo .​

Answer»

tion:We take a THICK insulated copper WIRE and fix it in such a way that the portion AB of the wire is in the north-south direction as shown in fig. A plotting compass M is placed under the wire AB. The TWO ends of the wire are connected to a BATTERY through a switch. When no current is FLOWING in the wire AB, the compass needle is parallel to the wire AB and points in the usual north-south direction. When current is passed through wire AB by closing the switch, we find that the compass needle is deflected from its north-south position. On opening the switch, the compass needle returns to its original position.Thus, the deflection of compass needle by the current carrying wire shows that magnetic field is associated with an electric current.ʜᴏᴘᴇ ɪᴛ ʜᴇʟᴘs ʏᴏᴜʜᴀᴠᴇ ᴀ ɢʀᴇᴀᴛ ᴅᴀʏ ᴀʜᴇᴀᴅ ♡︎