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.

Gravitational potential energy near the surface of earth? ​

Answer»

11.2 km is the ANSWER of gravitational ENERGY near EARTH

2.

What is dimension formula for tension in a string

Answer»

is a type of FORCE. So, DIMENSIONAL FORMULA for tension is same as that of force. So, [F]= MLT^(-2). I HOPE its help for you ✌☘️♥️

3.

Transformer with 10.1 voltage step down ratio has 16 v across 0.8 ohm in secondary calculate i) secondary current and ii) primary current.​

Answer» II) PRIMARY current TRANSFORMER with 10.1 voltage top down RADIO has 16v across 0.8 ohm ine secondary
4.

calculate the maximm displacement of the sound wave in air whose frequency is 3.4khz and having the maximum pressure of 2.0pa

Answer»

imum DISPLACEMENT of the sound wave  is 2.2 x 10^-7 mA is the maximum displacementPmax is the maximum Pressure, PMAX = 2.0paf is the frequency, F = 3.4khzd is the density of air, d = 1.22 Kg/m^3V is the velocity of sound in air, V= 346m/sTherefore the maximum displacement is GIVEN by, A =

5.

Briefly explain couple in physics... ヽ(´▽`)/​

Answer»

E~UR ANS ISCouple, in mechanics, pair of EQUAL parallel forces that are opposite in direction. The only effect of a COUPLE is to produce or prevent the turning of a BODY. The turning effect, or moment, of a couple is MEASURED by the product of the magnitude of either FORCE and the perpendicular distance between the action lines of the forces.MARK AS A Brainliest ♡

6.

Derive an expression for carnot Engine? ​

Answer»

________❤ Carnot engine is a theoretical thermodynamic cycle PROPOSED by Leonard Carnot. It gives the ESTIMATE of the MAXIMUM possible efficiency that a heat engine during the conversion PROCESS of heat into work and conversely, WORKING between two reservoirs, can possess.❤_____________Mark it as brainlist!!!

7.

What do you mean by the word सुगम ?????​

Answer»

जता से पहुँचा जा सके 2. जो सहजता से प्राप्त हो सके 3. सरलता से किया जाने योग्य; सरल; आसान।

8.

What is electric charge.please don't copy and paste from Wikipedia or from anywhere because I have searched . ​

Answer»

simple terms, I can say you that ELECTRIC CHARGE IS THE PHYSICAL PROPERTY OF MATTER THAT CAUSES IT TO EXPERIENCE A FORCE WHEN PLACED IN AN ELECTROMAGNETIC FIELD.

9.

Please answer the question correctly , do not spam. (Chapter - Refraction through a Lens)​

Answer»

this is which CLASS PLS TELL if 7 then pls ANSWER

10.

Please tell how will percentage be calculated for icse 10 in 2020?

Answer»

Class 10, there are TEN subjects. But you have to REDUCE them into 6 main heads.English language and English literature are regarded as only English. English marks are average of these two subjects.Biology, Chemistry and physics are regarded as ScienceHistory and GEOGRAPHY are regarded as Social ScienceApart from these, other main subjects are COMMERCE, Hindi/ Regional language (second language) and Math.Out of these six subjects, while calculating the percentage, you can not skip English marks (it is compulsory) and best four of remaining FIVE subjects. This is also known as the best five system.

11.

An ideal gas is taken around the cycle ABCDA as shown in diagram p-v given below. Find the work dones during the cycle??​

Answer»

Hey there,Since, here's no any graph given I am giving you hint that how to do this question,WORK done = AREA of ABCDAHope it helps youPlease mark it as branliest

12.

Of hack of mass in moving with velocity v. collides with a stationary block of mass M to which a springe sskis attached, as shown in figure. Choose the correct alternative (s) (MAQ)the clocity of the centre of massivmMby the initial kinetic energy of the system in the centre of mass frame is4M tmmM ) 1c) the maximum compression in the spring is Youvm+ MX00000 Mwhen the spring is in the state of maximum compression, the kinetic energy in the centre of massframe isreroeure shows a thin uniform rod 50 cm long and has a mass of 100g. A hollow metal ball is filled with15 0 five tenham At what it alan​

Answer»

don't KNOW SORRY BETTER ASK to expertExplanation:sorry better ask to EXPERT

13.

- The resultentof two force F and 15 N is 20 inclined at 60 degree to the 15 N force.find the magnitude and direction and Force​

Answer»

................... WAIT

14.

If the degree of freedom of a gas molecules be f then the ratio of two specific heats Cp/CV in terms of f is

Answer» TION:HOPE you helpfuly and THANK you
15.

writer of yellow colour is incident on an equilateral glass prism at an angle of incidence is equal to 40 degree and surface of minimum deviation and angle of 36 what will be the angle of emergence angle of incidence 300 30° and 60° state in each with the angle of integration with equal to less than of 36 degree​

Answer»

The REFRACTIVE index of the MATERIAL of the PRISM is where and are the refractive index, angle of the prism and the angle of minimum deviation respectively. The angle of incidence, and the angle of refraction, But is the angle of emergence.

16.

State Huygens secondary wavelets theory​

Answer»

s principle states that EVERY point on the WAVEFRONT may be CONSIDERED a source of secondary spherical WAVELETS which spread out in the forward direction at the speed of light. The new wavefront is the tangential SURFACE to all these secondary wavelets.May this Helps you ☘️♥️

17.

What is principal of lever

Answer»

Principal of liver It has been found by EXPERIMENT that TWO EQUALS FORCE acting in opposite direction ... MARK me as BRAINLIST ✌️.......m

18.

Act or sat for astrophysics​

Answer» ASTROPHYSICS is the STUDY of celistial BODY and the UNIVERSE
19.

The centre of mass of a plate shaped like a right angle is close to the right angle. Agree?

Answer»

troid can be LOCATED as FOLLOWS. From the right angle, measure one-third of the distance along the two adjacent sides to the other VERTICES. Draw lines at right ANGLES to the sides at the one-third points, and the intersection of the lines should be the CENTROID.

20.

Find the percentage error in the equivalent resistance of two parallel resistance​

Answer»

bcbv bhogifyusrzzbgd5stfnhkyaitsrdrutu

21.

What was the position of workers during industrial revolution in Russia ?​

Answer»

hii Mate here is your answer!!!EXPLANATION:Rapid industrialization CAUSED a discontent among the PEOPLE, the growth of factories bought new problems, poor working condition, realy low wages, child labour, outlawed trade unions.....war and REVOLUTION DESTROYED the Russian country trade was a stand still.pls mark me as brainlist

22.

How to store magnets​

Answer» MAGNET KEEPERS are USED to STORE magnet
23.

Two steel ball of masses 100 kg and 10 kg, respectively are placed with their centers 0.05 m apart. Find the force that attract the two balls.

Answer»

:  F ≈ 10⁴ GExplanation:MASS of the each Spherical Balls = 10 kg.Distance between the Spherical balls = 10 cm. = 0.1 m.Using the FORMULA,F = Gm₁m₂/r²∴ F = 6.67 × 10⁻¹¹ × 10 × 10/(0.1)²∴ F = 6.67 × 10⁻¹¹ × 10⁴∴ F = 6.67 × 10⁻⁷ N.∴ F ≈ 10⁴ G

24.

What do you mean by the word निसंदेह ????​

Answer»

निसंदेह MEANS WITHOUT any DOUBT

25.

A soil sample was taken from an agricultural land and was where the mass of soil was found to be 50 gram hundred ml of water was taken in a measuring cylinder and added into the soil sample the soil absorb 80 ml of water and rest left is a measuring cylinder calculate the absorption rate of water by the soil

Answer»

1.6 ML/ gramExplanation:HOPE the ANSWER will HELP you

26.

Find the de Broglie wavelength of photoelectrons ejected with maximum kinetic energy, when light ofwavelength 100 nm is incident on a cesium surface.(Work function of cesium = 3.4 eV)​

Answer»

Broglie wavelength of photoelectrons EJECTED with maximum kinetic energy, when light of wavelength 100 nm is INCIDENT on a CESIUM surface is λ = 4.08 A⁰The de-broglie wavelength is represented as:         λ = h/mvAs per the QUESTION, wavelength = 100 nm                                                                = 100 x10⁻⁹ mNow, we know that,                     (Einstein's equation)Thus, upon putting the VALUES, we get, 12.4 eV = 3.4 eV +KEKE = 9eVNow, the de-broglie wavelength will be :λ = 4.08 A⁰

27.

ANSWER with proper Explnation....!¡​

Answer» HOPE the answer will help you Explanation:MARK the answer BRAINLIESTS if it is CORRECT
28.

Calculate the value of g on the surface of moon if mass=7.4×10^22kg and radius=1.75×10^6m​

Answer» G = 1.611Explanation:Mass of moon is, M = 7.4 × kg   RADIUS of moon is, R = 1.75 × m  ACCELERATION due to gravity of moon is, g = GM/we know that, G is the universal GRAVITATIONAL constant, G = 6.67 ×   => g = (6.67 × )(7.4 × )/(1.75 × => g = 1.611
29.

Find the magnitude vector of P= 3i + 4j - 3k

Answer»

root22Explanation:APPLY FORMULA ROOT(3^2+4^2+3^2)

30.

What is critical angle of ordinary glass?

Answer»

Explanation:For visible LIGHT, the critical ANGLE is about 49° for incidence at the water-to-air BOUNDARY, and about 42° for incidence at the COMMON glass-to-air boundary.

31.

a torque a torque of 50 Newton metre acting on a wheel at rest rotates it through 200 in 5 second its angular acceleration is ​

Answer»

it's ACCELERATION MAY be 20

32.

(a)100 g of 10% lead nitrate is mixed with 100 g of 10% sodium chloride solution in a closed container. 13.66 g of lead chloride is precipitated. The mixture contains 180 g of water and sodium nitrate. What amount of sodium nitrate is formed? (b) What do you understand by the statement the solubility of NaCl is 36.58 at room temperature'?

Answer» 95 is the answer for me BRO please MARK me as brain list bro ghhhj
33.

Some electrical discharge are heared and some are not explain​

Answer»

do you WANT?_______________XD

34.

A piece of wire having a resistance Risque into five equal parts.a) How will the resistance of each parof the wire change compared with theoriginal resistance?b) If the five parts of the wire are placed inparallel, how will the resistance of thecombination change?c) What will be ratio of the effectiveresistance in series connection to that ofthe parallel connection?​

Answer»

a. if you BREAK a wire of R resistance in 5 EQUAL parts then the resistance of each part will become R/5 ohm. means it becomes one fifth of original resistance.b. if these equal 5 parts of R/5 ohm are connected in parallel then effective resistance will become (resistance of one part) / (NUMBER of RESISTANCES to be connected in parallel )therefore effective resistance becomes = (R/5)/5 = R/25 ohms c. if 5 resistances of R/5 ohms connected in series and in parallel then their ratio in series and parallel will become series resistance =5(R/5) =Rparallel resistance = (R/5)/5 = R/25therefore series /parallel = 25 or 5^2Explanation:

35.

What are the uses of lens​

Answer»

The lens is the transparent medium that refracts the light and it is limited with two SPHERICAL SURFACES , The lens is usually made of the glass or the PLASTIC , The lens is the transparent optical device that affects the focus of a light beam through the refraction .A simple lens consists of a single piece of material while a compound lens consists of SEVERAL simple lenses ( the elements ) , usually along a common axis .the lenses are made from transparent materials such as the glass , the ground and POLISHED to a desired shape ,The lens can focus the light to form an image , unlike a prism , which refracts the light without focusing .The devices that similarly refract radiation other than visible light are also called the lenses such as the microwave lenses or the acoustic lenses .

36.

a galilean telescope has an objective of 120mm focal length and an eye piece of 50mm focal length if image seen by a eye is 250mm from the eye piece, what is angular magnification

Answer»

nification of the image is 0.6Explanation:Given as :For Galilean TELESCOPE The focal length of the objective lens = = 120  mmThe focal length of the EYE PIECE lens = = 500  mmThe distance of the object = u = 250 mmLet The magnification = mAccording to questionAs magnification is directly proportional to the focal length of the objective lens .i.e  m ∝                  ............1As magnification Inversely proportional to the focal length of the eye piece.i.e  m ∝                ............2From eq 1 and 2m = Or,  m = ∴    m = 0.6So, The magnification of the image = m = 0.6Hence, The magnification of the image is 0.6   ANSWER

37.

For a body in uniform circular motion, the correct statement is A) it's velocity is always directed towards the centre of circular path. B) it's velocity is always constant. C) it's acceleration is always constant D) it's angular velocity about the centre of its circular path is constant

Answer» ANSWER is d) its ANGULAR is ALWAYS CONSTANT
38.

10 joule of heat is supplied to any system and internal energy of the system is decreased by 12 joule. calculate the work done ​

Answer»

ΔQ=Δu+ΔW10=-12+ΔW10+12=ΔWTherefore, ΔW=22 Jplease MARK it BRAINLIEST

39.

Please help me with the question​

Answer» QUESTION INCOMPLETE HAI
40.

How many stars in world. give answer​

Answer»

There are about 1,000,000,000,000,000,000,000 STARS PRESENT in GALAXY !!!!!

41.

How can you increase the efficiency of a class 1 lever?

Answer»

by INCREASING the EFFORT ARM

42.

A boy stands on a cliff and throws a stone vertically upwards at time t=0 .The stone leaves his hand at 20m/s .Take the acceleration of the ball as 9.8m/s^2 show that the equation for the displacement of the ball is s=20t- 4.9t^2 what is the height of the stone 2.is art release and 6.0 after release

Answer»

u don't KNOW this ANSWER of this question I am REALLY sorry bro OK

43.

Will a neutral object experiences a force in a electromagnetic field​

Answer»

c Force on Neutral Object. A neutral conductor (or DIELECTRIC) EXPERIENCES a TORQUE, but no net force, when PLACED in a uniform electric field. It does EXPERIENCE a net force in a non-uniform field. Hope it helps you ItzRiya✌️

44.

Which of the following statement is always correct?

Answer» ACCELERATION is ZERO for a BODY moving with CONSTANT velocity
45.

Derive expression for beat

Answer» FREQUENCY of beatExplanation: it's MATHEMATICAL DERIVATION is ∆n =N1 - N2
46.

a light ray of yellow colour is incident on a equilateral glass prism and angle of incidence equal to 48 degree and suffers minimum deviation and angle of 36 degree what will be the angle of emergence if the angle of incidence is changed to a.30 degrees B 60° state in each case whether the angle of deviation will be equal to listen or more than 36 degree​

Answer»

rgence angle is 48°.(I). The angle of deviation will be less than 36°.(II). The angle of deviation will be more than 36°.Explanation:GIVEN that,INCIDENT angle = 48°Deviation angle = 36°Prism is equilateral.So, angle is 60°We need to calculate the angle of emergenceUsing formula of emergence angleWhere, = INCIDENCE angle = deviation anglePut the VALUE into the formulaThe emergence angle is 48°.(B). If the angle of incidence is changed (I). Incidence angle is 30°We need to deviation angleUsing formula of deviationPut the value into the formulaThe angle of deviation will be less than 36°.(II). Incidence angle is 60°We need to deviation angleUsing formula of deviationPut the value into the formulaThe angle of deviation will be more than 36°.Hence, The emergence angle is 48°.(I). The angle of deviation will be less than 36°.(II). The angle of deviation will be more than 36°.Learn more :Topic : emergence anglebrainly.in/question/1183522

47.

A ball is gently dropped from a height of 20m.If its velocity increases uniformly at the rate of 10 m/s, with what velocity will it strike the ground? After what time will it strike the ground? (g=10m/s.) mera answer to 20 m/s and 3s aya h mujhe wrong lg rha h plz clear my doubt ​

Answer»

:-given :- s = 20 m U = 0 m/sa = 10 m/s²To FIND - Time taken to reach GROUND We know that ,S = ut + 1/2 at²According to question, 20 = (0)(t) + 1/2 (10)(t)²20 = 0 + 5t²t² = 20/5 t² = 4t = 2 secHope it helps YOUTHANKS :)

48.

Write any four field application of frication on horizantal surface.​

Answer»

Hey there,Application of FRICTION on HORIZONTAL SURFACE:Movement of vehicles such as car, BIKE, trains.Movement of us on the groundAny thing putting on the GROUND such as table-chair, machines and etc.Building of a houseHope it helps youPlease mark it as branliest

49.

What are the two main sources of nuclear radiations?​

Answer» ROUTINE sources of radiationThese INCLUDE: RADIOACTIVITY in rocks and soil of the EARTH's crust; radon, a radioactive gas given out by many volcanic rocks and uranium ore; and cosmic radiation.
50.

0.15) State the character ties of síst poduct​

Answer» WRITE ONE's again QUESTIONS