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.

Two particles are executing S.H.M of same amplitude and frequency along the same straight line path. They passe' each other when going in opposite direction, each time their displacement is half of their amplitude. What is the phase difference between them?

Answer»

ite ⭐⭐✨✨^_^:-(:-(:-(:-(:-(:-(:-(:-(Your answer :-):-):-):-):-):-):-):-):-)::-):-)$$$${{{{{{{{{{. Two particles are executing SHM with the same amplitude and frequency, but with a phase difference, and the maximum separation found is equal to amplitude. What is the phase difference?Still have a question? Ask your own!What is your question?4 ANSWERSAnurodh Kumar, B Sc Physics (2011)UPDATED Jan 15, 2019 · Author has 123answers and 45.1k answer viewsLet the first particle be at mean position at t = 0.Equation of shm is GIVEN byx1=Asin(ωt)x1=Asin⁡(ωt)And for second particle equation can be written asx2=Asin(ωt+θ)x2=Asin⁡(ωt+θ)Distance between them|x2−x1||x2−x1|=|A(SIN(ωt)−sin(ωt+θ))|=|A(sin⁡(ωt)−sin⁡(ωt+θ))|=|2Acosωt+ωt+θ2sinθ2|=|2Acos⁡ωt+ωt+θ2sin⁡θ2|=|2Asinθ2cos2×ωt+θ2|=|2Asin⁡θ2cos⁡2×ωt+θ2|From here we find that the lenght x2−x1x2−x1 is oscillating in nature and the maximum value is given by the constant part IE 2Asinθ22Asin⁡θ2 which is eqal to A. From this we can find θθ2Asinθ2=A2Asin⁡θ2=A⟹θ=π3⟹θ=π3So phase difference is π3 }}}}}}}$$$$$$$$£££££&&&&&&&&&&+££Hope Help your ££££££&&&&&&&&&+£££???((((@@((☝️☝️☝️please brainliest this answer☝️☝️))))))??????????????????☘️??????????☝️✨?????????????????????????????????????????☝️^_^✨☝️???????????????????

2.

A cubical block of side 'a' moving with velocity v on a horizontal smooth plane as shown. It hits a ridge at point o. The angular speed of the block after it hits o is

Answer»

ular speed of the BLOCK after it HITS o is  ω=3v / 4aExplanation:τ = r x FLi = LfL = r x p = (a/2 J x MVi) = - MVa/2 NI = Ma^2 / 6Lf = IωConserving angular momentum about O (just before and just after ) is mv a/2 = [ma^2 / 6. ma^2 /2] ωω=3v / 4aThus the angular speed of the block after it hits o is  ω=3v / 4aAlso learn moreA ball of MASS 0.1kg is SUSPENDED by a string 30cm long. Keeping the string taut, the ball describes a horizontal circle of radius 15cm. Find the angular speed ?brainly.in/question/12380618

3.

Smallest amount of current that the cathode anode can have and still sustain conduction of an scr is called

Answer»

llest AMOUNT of CURRENT that the cathode-anode can have, and still sustain conduction of an SCR is called the: A. Once a DIAC is CONDUCTING, the only way to turn it off is with: A.

4.

which organisation prepares the red list that contain the name of endangered spaces from different countries

Answer»

ernational Union for CONSERVATION of Nature (IUCN; officially INTERNATIONAL Union for Conservation of Nature and Natural RESOURCES).hope it helps PLZ mark me as brainliest

5.

Plz ans.............................................. very very urgent

Answer»

it's 28 .VERIFY in CASE

6.

Dicuss different methods for production of law temperature

Answer»

some of the methods of achieving low TEMPERATURES the various methods of producing low temperatures are sensible cooling using a cold MEDIUM ENDOTHERMIC mixing of SUBSTANCES phase change processes expansion of liquids expansion of gases thermoelectric method and magnetic method.MARK AS BRAINLIEST PLEASE

7.

Sum of pseudo vector and real vector results

Answer» ED because it does not MEAN that
8.

an electric dipole of length 2 cm is placed with its axis making an angle of 30° to a uniform electic field 10^5N/C. if it experiences a torque of 10√3 then potential energy of the dipole is

Answer» AL energy WOULD be equal to GENERAL FORMULA of potential energy ×root3/2 which is -p×E×Root 3/2
9.

Why is the field view preferable to the action-at-a-distance view of forces

Answer»

ite ⭐⭐✨✨^_^:-(:-(:-(:-(:-(:-(:-(:-(Your answer :-):-):-):-):-):-):-):-):-)::-):-)$$$${{{{{{{{{{. In classical electromagnetic theory one has both charged particles and the EM field. While STATE of a particle - its position and momentum - can be chosen freely, the state of the EM field is constrained a lot by the Maxwell equations, namely by the equations∇⋅E=ρ,∇⋅E=ρ,∇⋅B=0.∇⋅B=0.THUS the field is not an entirely independent object to describe; it is partially dependent on the particles and thus its numerical representation is partially superfluous in describing the state of the system.On the other hand, even with these restrictions, the fields can be chosen in an infinite number of ways and it is not immediately clear which initial and boundary conditions should be supplemented to the equations to solve for, say, the motion of the electron around the proton.If the particles are points, which is the simplest case and electrons MAY be such according to current knowledge, this formulation with one field has also very serious problem that it is not capable to determine force acting on the charged particle (the field is singular at the position of all point particles). This lead to great confusion about the equation of motion of a charged particle - see the most famous attempt, so-called Lorentz-Abraham-Dirac equation, which has serious problems though. }}}}}}}$$$$$$$$£££££&&&&&&&&&&+££Hope HELP your ££££££&&&&&&&&&+£££???((((@@((☝️☝️☝️please brainliest this answer☝️☝️))))))??????????????????☘️??????????☝️✨?????????????????????????????????????????☝️^_^✨☝️???????????????????

10.

A container with insulating walls is divided into equal parts by a partition fitted with the world

Answer»

we NEED to ANSWER???

11.

An engine whistling at a constant frequency and moving with a constant velocity goes past a stationary observer. As the engine crosses him, the frequency of the sound heard by him changes by a factor f. The actual difference in the frequencies of sound heard by him before and after the engine crosses him is

Answer»

nd of frequency N heard by a stationary observer from a SOURCE of sound moving with velocity Vs towards the observer is given by,         ν'=VnV−Vs−−−(1)and when source of sound MOVES away from the observer then,       ν''=VnV+Vs−−−(2) But we are given,       ν'−V''=f=Vn(1V−Vs−1V+Vs)=−2V n Vs(V2−Vs2)or                          f = −2n ×VVs[(VVs)2−1]−−−−(3)again      ν'=VnV−Vs= fVnV+Vsor               f(V−Vs)=V+Vsor               V(f−1)=Vs(1+f)or             VVs=1+ff−1−−−(4)Now putting the value of VVs from eqn (4) in eqn (3), we get,     ν'=−2n×1+ff−1[(1+ff−1)2−1]=2n×(1−f2)4f=n×(1−f2)2f. proved.

12.

If the initial velocity of an object thrown upword is 14m/s, then the time taken for the object to reach its highest point will be

Answer» TICAL PROJECTION T=u/gT=14/10=1.4 seconds✌
13.

Im young 's double slit experiment using monochromatic light of wavelength lamda, the intensity of light at a point on the screen,where path difference is lamda k units.What is the intensity of light at a point where path difference is lamda by 3?

Answer»

all there is regarding to relation between path different and INTENSITY of light in YOUNG's DOUBLE slit experiment, the distance between the slits is KEPT SMALLER than the wavelength of light.

14.

How to solve ths sum,at what time would a cistern be filled by 3 pipes whose diametere are 1cm,4.5cm,3cm running together diametere with 3cm pipe fill alone in 11 min. The amount of water flowing inby each pipe being proposional to tyhe square of its diameter?

Answer»

minute the pipe of 2cm DIAMETER fills 1/61  of the cistern.In ONE minute the pipe of 1cm diameter fills 1/61* 1/4   of the cisternIn one minute the pipe of 11/3 cm diameter fills 1/61* 4/9   of the cisternIn one minute (1/61+1/(61*4)+4/(61*9))=1/36   of the cistern is filled.The whole cistern is filled in 36 minutes.

15.

If youre wondering why you should buy or lease an electric car, you should that it is

Answer»

rather than buying a new vehicle outright, has become increasingly POPULAR in recent years .it now account for around 30 percent of all TRANSACTIONS and easy to see why. down payment and monthly outlays are usually lower than with conventional FINANCING and AUTOMAKER often OFFER promotional lease deals with built in cost reduction that are hard to heat

16.

Refractive index of medium x with respect to medium why is 2.3 and the refractive index of medium by with respect to medium that is 4.3 calculate the refractive index of medium zl respect to x

Answer»

ractive INDEX of a medium ' X '  with respect to ' y ' is 2/3  and the refractive index of the medium ' y '  with respect to medium ' Z '  is 4/3 . CALCULATE the refractive  index of the medium  ' z ' with respect to medium ' x ' .

17.

Why does clouds appear white

Answer»

does not APPEAR much WHITE it is grey in colour because when the water is evaporated it mixes with dust and smoke which MAKES the CLOUD to be appear in grey colour

18.

A driver travels from point A to B at a speed of 100m/s covering a distance of 20km. H then stops for 2 minutes to grab a cup of coffee. He continued his journey from point B to C with a speed of 5m/s in 2 minutes. What is the average speed of the whole journey?

Answer»

. SPEED of VEHICLE is 6.625

19.

Energy equivalent to one amu is

Answer»

Binding Energy and the Mass DEFECT. A NEUTRON has a slightly larger mass than the proton. These are OFTEN given in TERMS of an atomic mass unit, where ONE atomic mass unit (u) is defined as 1/12th the mass of a carbon-12 atom. You can use that to prove that a mass of 1 u is equivalent to an energy of 931.5 MeV.MARK AS BRAINLIEST ANSWER PLEASE

20.

Discuss debye theory of specific heat of solids

Answer»

ite ⭐⭐✨✨^_^:-(:-(:-(:-(:-(:-(:-(:-(Your answer :-):-):-):-):-):-):-):-):-)::-):-)$$$${{{{{{{{{{. The theory leads to the conclusion that the SPECIFIC heat capacity of SOLIDS is PROPORTIONAL to T3, where T is the thermodynamic temperature. This result is in very good agreement with EXPERIMENT at low temperatures. ... The Debye temperature is characteristic of a particular solid. }}}}}}}$$$$$$$$£££££&&&&&&&&&&+££Hope Help your ££££££&&&&&&&&&+£££???((((@@((☝️☝️☝️please brainliest this answer☝️☝️))))))??????????????????☘️??????????☝️✨?????????????????????????????????????????☝️^_^✨☝️???????????????????

21.

Find the value of x by solving

Answer»

( 150 m/s )² = ( 100 m/s )² + 2 ( 50 m/s² ) x= > 150 m/s × 150 m/s = 100 m/s × 100 m/s + 100 m/s² x= > 22500 m²/s² = 10,000 m²/s² + 100 m/s² × x= > 100 m/s² × x = 22500 m²/s² - 10,000 m²/s²= > 100 m/s² × x = 12,500 m²/s²= > x = 12,500 m²/s² / 100 m/s²= > x = 125 mANSWER :x = 125 m

22.

How is the time period affected if the amplitude of a simple pendulum is increased?

Answer»

mple pendulum, which can be modeled as a point mass at the END of a string of NEGLIGIBLE mass and a GIVEN length, the amplitude is normally only a few DEGREES. When the amplitude is this SMALL, it does not affect the periodof the pendulum. As the amplitudeof the pendulum increases, the period increases.

23.

He mass and volume of a natural soil sample are 2.1 kg and 110-3 m3, respectively. When fully dried, the mass of the soil sample becomes 2 kg without any change in volume. Assuming the specific gravity of soil particles to be 2.5, and water density of 1000 kg/m3, the degree of saturation of the natural soil sample is

Answer»

thfhuhgjjnhjkogbjihbExplanation:PLEASE MARK me as BRAINLIEST

24.

How does the meniscus angle change with temperature, type of liquid (eg various alkanes), density?

Answer»

f contact decrease with the addition of IMPURITIES whereas it increases if the temperature is increasedFor the explanation of why it increases with increase in temperature, I found out that the surface tension causes the increase in cohesive forces and hence a upward CONCAVE. So when temperature rises, surface tension decreases and ANGLE of contact increases.Is this explanation correct, and COULD you explain it in some other WAY or elaborate about it?And I was not able to find why does it decrease with increase in impurities

25.

Discuss debye theory of specific heat of solods

Answer»

ite ⭐⭐✨✨^_^:-(:-(:-(:-(:-(:-(:-(:-(Your ANSWER :-):-):-):-):-):-):-):-):-)::-):-)$$$${{{{{{{{{{. The theory leads to the conclusion that the specific heat capacity of SOLIDS is proportional to T3, where T is the thermodynamic TEMPERATURE. This result is in very GOOD agreement with experiment at low temperatures. ... The Debye temperature is characteristic of a particular solid. }}}}}}}$$$$$$$$£££££&&&&&&&&&&+££Hope Help your ££££££&&&&&&&&&+£££???((((@@((☝️☝️☝️please brainliest this answer☝️☝️))))))??????????????????☘️??????????☝️✨?????????????????????????????????????????☝️^_^✨☝️???????????????????

26.

How to find nature of image from the magnification(light chapter class 10 numerical)

Answer»

orif the magnification is negative,the image is REAL and invertedif m is positive,the image is VIRTUAL and erectif m is GREATER than 1,it is enlarged and if it is below 1 (0.4 ETC..)it is diminishedLenses if m is negative,the image is virtual and erect and if m is positive, the image is real and inverted.if m is more than 1 image is enlarged and if m is less than 1,image is diminishedhope you are satisfied ;)

27.

Difference between concave lens and convex lens 7 points each

Answer»

nce between CONCAVE and Convex Lens Image Properties ... Difference between Concave and Convex Lens. A convex lens or converging lens focuses the light rays to a specific point WHEREAS a concave lens or diverging lens diverges the light rays. ... When these lenses are combined they produce SHARPER images. Most of the eyeglass lenses USE combinations of convex and concave lenses.hope it will help you.

28.

A body of mass 20kg climbs up 10 steps each of height 0.3m in 20secs. Calculate the power of the body

Answer»

your answerGLAD YOU LIKE ITPLEASE NOTE MY ANSWER AS BRAINLIEST

29.

If charge is on 2uf capacitor is 6uc then emf E of the battery will be

Answer» ANCE= Charge/potential or emfu=10⁻⁶2×10⁻⁶= 6×10⁻⁶×EE=1/3E=0.33V
30.

find the height above the surface of earth where the value of acceleration due to gravity falls to 1% at the surface of the earth

Answer»

that gravity at any height is GIVEN as;G’ = g (1 - 2h/R) —[1]DECREASE by 1% implies that g’ = 99/100gSubstitute In 1,we get99/100g = g (1 - 2h/R)99/100 = 1 - 2h/R2h/R = 1 - 99/1002h/R = 1/100h = R/200h = 6400/200 (R = 6400KM)H = 32KM From surface of EARTH

31.

Why cross wire are not used in huygen eyepiece

Answer»

ss WIRES are VIEWED through the eye lens only while the distant object is viewed by rays refracted through both the lenses. Due to this reason RELATIVE lengths of the cross wires and the IMAGE are disproportionate. Hence cross wires cannot be used in a Huygens eyepieceand this is a disadvantage.

32.

If earth suddenly stops rotating about its own axis, the increase in its temperature will be

Answer»

earth suddenly stops ROTATING about its own AXIS , the one side of the earth FACING towards sun will be HEATED a lot and no life can survive there and the side facing opposite to sun will be freezed and no life can sustain on earth

33.

If we use both setter and construction by passing other refernce which is better

Answer» CTION HOPE it HELPS
34.

Prove that equivalent emf of two cells e1 and e2 combine in parallel

Answer» E3 MAYBE I just ADDED E1 and E2
35.

What is thunderstorm?explain how it is formed.name any two characteristics of thunderstorm.

Answer»

duced by a cumulonimbus cloud, usually producing GUSTY winds, heavy rain and sometimes HAIL. The basic ingredients USED to make a thunderstorm are moisture, unstable air and lift. You need moisture to form clouds and rain. You need unstable air that is relatively WARM and can rise RAPIDLY.

36.

To the relation of the ratio 1) input and out put voltage 2) number of turn in the secondary and primary coil of the self design transfarmer

Answer»

oking forward to know how to make this HAPPEN to know how to get a CHANCE to get to know how to get to know how I have a FRIEND who has had a new ONE is a friend who was also wondering why is to be in touch with this MAIL is to be able to get a new job in my

37.

PLEASE ANSWER FOLLOWING QUESTIONS : C1 C2 C3 C4

Answer»

emperature at which the average velocity of the oxygen MOLECULE be sufficient so as to escape earth will be 91232 KelvinThe average speed of a gas molecule is given by;v = Given escape velocity = 11000 m/sR = 25/3M = 16 g/mole = 16 x 10⁻³ kg/moleHence,11000 = √(8 x 25/3 x T/π x 16x10⁻³)=> (121 x 10⁶) x 10⁻³ = 200T/48π=> T = 121000 x 48 x 3.14/200=> T = 91232 KelvinHence the temperature at which the average velocity of the oxygen molecule be sufficient so as to escape earth will be 91232 Kelvin

38.

Mathematical form of chaleslaw

Answer»

LAW=P1×V1/T1=P2×V2/T2

39.

What is meant by electronic configuration ❤❤❤

Answer» NES THE PLACE OF THE ELEMENTS IN PERIODIC TABLE AND NUMBER OF ELECTRONS...
40.

There is a metal cube inside a block of ice which is floating on the surface of water. The ice melts completely and metal falls in the water. Water level in the container.

Answer»

ice cube with a iron ball inside floating on water melts, the level of water will decrease. ... In this CASE, additional volume of water DISPLACED due to weight of metal piece, WEIGHS same as the weight of ball. This is more than the volume of ball which has higher DENSITY than water.please if you like my answer then TAP on brainliest

41.

Write the expression for brewster angle in term of the refractive index of denser medium

Answer»

llowing up on the FIRST answer by TOMORROW MORNING BED and breakfast

42.

A force f acts tangentially at the highest point of a disc of mass m kept on a rough horizontal plane. If the disc rolls without slipping, the acceleration of centre of the disc is

Answer»

eleration of centre of the disc is a =    4F / 3mExplanation:The FORCE F acting on the sphere moves it TOWARDS right.The contact point between force and sphere will slip towards right Thus the static friction( force f shown ) on the sphere will act towards left. LET Radius of the sphere  = rLinear acceleration  = aSince there is SLIPPING alpha "α"=  r a ​For linear motion F - f = ma   ----- (1)Where "f" is the frictional force For rotational motion, torque about center "τ" = Fr+fr = Iα=(  1/2  mr^2  )   a/rF+f=   1/2 ma ---- (2) From (1) and (2) adding, we get 2 F = 3 / 2 ma  a=    4F / 3mThus the acceleration of centre of the disc is a =  4F / 3mAlso LEARN moreA particle moving with a velocity of 5 m/s accelerated uniformly with an acceleration of 2 m/s for 10 s. find the displacement in the last second. ?brainly.in/question/3500912​

43.

Define frequency. What is the frequency of a wave with a time period of 0.05 seconds?

Answer»

cy FREQUENCY is defined as the number of vibrations made by a particle in one second.Formula of frequency :Frequency = 1 / TIME period .Given :time period = 0.05 sFrequency = 1 / 0.05 s                   = 100 / 5 s                   = 20 / s                   = 20 HzThe frequency of the WAVE was 20 HzOther terms associated :Time period : The time taken by a particle to complete one vibration is called time period.The frequency of the wave depends on the SOURCE of sound which produces vibrations .

44.

Physical significance of moment of inertia and factors on which it depend

Answer»

of inertia is the PRODUCT of force and the PERPENDICULAR distance between the line of action of forceit depends on MAGNITUDE of force and direction of force

45.

Photons of energy 6 electron volts are incident on a potassium surface of work function 2.1 ac on walls what is the stopping potential

Answer» WER is :-3.9 VOL
46.

on applying a force of 8 kg WT to a body if displaces 4m in the direction of force find the amount of work done

Answer»

8N DISPLACEMENT = 4M WORK DONE = 8*4=32 JOULES

47.

When a satellite revolving around the earth no torque is produced.why ?

Answer» HELPS U....MARK me as BRAINLIST
48.

A rice bag of 75kg. calculate the height to which height to be raised to gain 7500(g=10ms*2)

Answer»

mass = 75 kgheight = H g = 10 m/s² Work  DONE = 7500 JFormula :Work = m g h= > 7500 J = 75 kg × 10 m/s² × h= > h = 7500 J / ( 75 kg × 10 m/s² )= > h = 7500 J / 750 kg m/s²= > h = 10 mANSWER :The height is 10 m

49.

Pratical uses of co2

Answer» AL Industrial GASES, Inc...CO2 Carbon Dioxide Properties ... Carbon dioxide in solid and in liquid form is used for refrigeration and cooling. It is used as an INERT gas in chemical processes, in the storage of carbon powder and in fire extinguishers. Metals Industry: Carbon dioxide is used in the manufacture of casting molds to enhance their HARDNESS.
50.

In a choke coil the reactance xl and resistance r are such that

Answer» R$PLEASE if you LIKE y answer then tap on brainliest