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.

A bar magnet can be identified by its​

Answer»

A BAR MAGNET can be identified by its rectangular shape.And by its NATURE of attractionPls MARK me brainiest if POSSIBLE

2.

The dimensional formula pf thermal conductivity

Answer»

❤In the International System of Units (SI), THERMAL CONDUCTIVITY is measured in watts per meter-kelvin (W/(m⋅K)). The DIMENSION of thermal conductivity is M1L1T−3Θ−1, expressed in terms of the dimensions mass (M), length (L), time (T), and TEMPERATURE (Θ).

3.

The displacement of a particle is given by X equal to 3 sin 5πt the + 4 cos 5πt then the amplitude of particle

Answer»

The AMPLITUDE A of PARTICLE in this CASE will be√A1^2 +A2^2 = √9+16 = √25 = 5M

4.

Explain second newton law of motion in Hindi

Answer»

न्यूटन का दूसरा नियम – किसी भी वस्तु के संवेग परिवर्तन की दर उसपर लगाये गये बल के समानुपाती होती है, तथा संवेग परिवर्तन की दिशा वही होती है जो बल की दिशा होती है।

5.

Power of lens is ..... Of its focal length

Answer» POWER of Lens is  reciprocal of its focal LENGTH.   ( power = 1/f)Hope this HELPS you!!CHEERS!!
6.

A 6ohm resistance wire double up by folding. Calculate the new resistance of the wire

Answer»

6 ohm resistance WIRE if we USE 6 ohm resistance The POWER wi ll be DOUBLE FREQUENTLY

7.

Specific volume is the reciprocal of ?

Answer» SPECIFIC VOLUME is the RECIPROCAL of its density.Explanation:
8.

what are the factors to be considered when you select a bulb? which are the lambs that are mostly used ? why?​

Answer» POWER of the bulbExplanation:Because the more power CONSUMPTION the more LIGHT
9.

Which colour of light has the longest wavelenght

Answer» RED IS the LONGEST WAVELENGHT
10.

1m = 100cm 1 billion km = 1,000,000,000 km = 1 x 10^9 km = 1 x 10^9 x 100 cm = 1 x 10^11 cm Can someone explain why when km convert to cm only x 100 and not x 10000

Answer»

tion:It is so because 1 KM contains 100 cm not 10000 cmThat is why X km = 100x cmplzz MARK as BRAINLIEST

11.

Definition of electromagnetism?please don't copy from Google​

Answer»

Electromagnetism is a branch of PHYSICS, deals with the electromagnetic force that occurs between ELECTRICALLY charged particles. The electromagnetic force is one of the FOUR FUNDAMENTAL forces and exhibits electromagnetic fields such as magnetic fields, ELECTRIC fields, and light.mark as brainliest answer plzzz

12.

Burning of wick of candle is a dash change ​

Answer» CHEMICAL CHANGE HOPE IT HELPS
13.

Define surface tension and surface energy. ​

Answer»

Tension vs Surface EnergySurface tension is the NET intermolecular force on the surface molecules of a liquid. Surface ENERGY is the RELEVANT energy of these bonds.

14.

In which of the following examples of motion, can the body be considered approximately a point object. (a) A railway carriage moving without brakes between two stations.(b) A monkey sitting on top of a man cycling smoothly on a circular track.(c) A spinning cricket ball that turns sharply on hitting the ground.(d) A tumbling beaker that has slipped off the edge of table.​

Answer»

railway carriage moving without brakes between two stations so the distance between the two stations is considered to be as large as the size of the train. Due to this REASON the train is considered as a point object.(b) The monkey can be considered as a point object because the value of the distance COVERED by the circular train is much GREATER.(c) The way the ball turns is not smooth because of this reason the distance covered by the ball is not large enough in a reasonable amount of time due this the spinning of a CRICKET ball that turns sharply on hitting the GROUND cannot be considered as a point object.(d) The distance covered by a tumbling beaker that has slipped off the edge of table cannot be considered as a point object because the distance covered is very less not enough to be considered as a point object.

15.

Find the maximum and minimum y=x^3-6x^2+9x+15 Using differentiation.

Answer»

we have to find the derivatives of y using differentiationFor MAXIMUM and MinimumSolving the EQN, we get:We know that(dy/dx) is negative at maximum(dy/dx) is POSITIVE at minimumHere, we have both positive values. So we can further differentiate dy/dxPutting values of x ☞ 6(1) - 12 = - 6 (Maximum) ☞ 6(3) - 12 = 6 (Minimum) ∴ y is maximum at (-6) and minimum at 6

16.

Sample Problem 1-6If velocity of light, acceleration due to gravity, and stand-and atmospheric pressure are taken as the fundamentalits what will be the value of (a) 9 m, and (b) 30 s inDe system of units.Given velocity of light is 3 x 10 m/s, acceleration dueto gravity is 10 m/s. and standard ​

Answer»

id kr RAHE the hu G the time to GET to know

17.

Oxample 13. Two wires A and B of equal masses and of the same metal are taken. The diameter of the wire A is half the diameter of the wire B. If the resistance of the wire A be 242, calculate the resistance ofthe wire B.(ISC 2006)​

Answer»

I don't KNOW ANSWER SORRY

18.

What is a scalar quantity​

Answer»

Which can be MEASURED EXPLANATION:

19.

For a material y= 6.6*10^10 n/m^2 and bulk modulus K=11*10^10n/m^2 then its poissons ratio is​

Answer» LET V be the POISSONS RATIO,3(1-2v) = y/K3-6v = 6.6/113-6v=0.66v=2.4 So v= 0.4Hence the poissons ratio is 0.4
20.

The temperature of gas increased by 10°C the equivalent increase in kelvin scale

Answer»

Then the TEMPERATURE will ALSO INCREASE by 10DEGREE kelvin.Explanation:

21.

Resistance of tungsten bulb at 20 degree celcius is 18 ohm when it is connected with 30 volts then current is 0.185ampere .take alpha is equal to 4.4*10^-3k^-

Answer» WORSE is so BAD the COMPANY will
22.

Which is faster -20 m/s or 20 km/h??? Show calculations to support ur answer

Answer»

-20m/s is FASTER (negative sign indicates BACKWARD MOVEMENT)Explanation20 km in 1hris equal to      20000m in 3600secTherefore how many meters in 1 sec     20000/3600 = x        50/9      =  x          5.5m    = xTherefore 5.5m in 1sec     -20m/s > 5.5m/sHope this helps!!CHEERS!1

23.

Plz help to find the physics question ​

Answer»

tion:PLS SEE the PICPLS FOLLOW me and MARK me as brainlist

24.

a person walks along a square field . each side is 10 m long. what is the maximum magnitude of displacement of the person in anytime interval ?

Answer»

The MAXIMUM DISPLACEMENT is the DIAGONAL of the SQUARE field.side of square = 100mdiagonal = √100² + 100² = √20000 = 100√2 m = 141.42mSo maximum displacement is 141.42m.

25.

I want the process of the question 6 in the pic i uploaded

Answer» TION:CURRENT is CHARGE upon TIME CALCULATE time taken by the electron for one revolution.now divide the charge upon that time u will get current.
26.

A spining cricket ball does not take parabolic path like an projectile. why​

Answer»

The velocity of the air below the BALL is decreased because these TWO motions are OPPOSING each other. Thus, the pressure on the upper SIDE of the ball is lesser and there is an upward force that works UPON the ball. This makes the ball follow a curved path and not a parabolic oneMARK ME AS THE BRAINLIEST.Explanation:

27.

A train starting from a raliway station and moving with uniform acceleration, attains a speed of 40 km/hr in 10 minutes. Find it's acceleration​

Answer»

a=0-40/10answer is -4KM /H

28.

Properties os non metal​

Answer» E here your answerplease MARK BRAIN list answer please please please
29.

the upper bound is pi/w the lower bound is 0 and the function is l = (1-sinwt)dt find definite integration

Answer» ANSWER ..............................
30.

2. Find the total displacement of the body from the following graph: 25 -20115Etic2 4 60810SANT​

Answer»

i.e 65Explanation:The TOTAL AREA under the GRAPH GIVES you The Displacement.. 1/2×2×5 + 10 ×4 + 5 ×4 = 65Please Support this Answer!!

31.

The width of forbidden gap in silicon crystal is 1.1eV.When the crystal is converted into n type semiconductor,then the distance of fermi energy level from conduction band is 1. equal to 0.55eV2. equal to 1.1eV3. less than 0.55eV4. greater than 0.55eV​plz answer

Answer»

tion:THE BRAINLIEST ANSWER!itzshrutiBasrani GeniusFermi level in intrinsic semiconductor LIES in middle of the energy forbidden gap .                       In CASE of silicon it is at .55eV ,but when it doped with pentavalent           n-type semiconductor fermi energy level  rises up just below conduction                        band  so that electron can easily  MOVE to conduction band .                        So energy gap in fermi level and conduction band will be LESS than .55eV                        Option 3 is correctRead more on Brainly.in - brainly.in/question/17272811#readmore

32.

1m = 100cm 1 billion km = 1,000,000,000 km = 1 x 10^9 km = 1 x 10^9 x 100 cm = 1 x 10^11 cm Can you please explain to me in detail I am a homeschool student, so really appreciate if you can help

Answer»

there are 9 ZEROS so,1 x 10^9next,1x10^9 x 100cmIn this 100 CM has 2 zeros.so,1x10^9 +^21x10^11.

33.

Write down the amperage of the fuse wires that are currently available in the market​

Answer»

10,000 amperesExplanation:

34.

Please answer fast .​

Answer» TION:acceleration time GRAPH is LINEAR .differentiate that displacement time RELATION with RESPECTIVE time twice to get acceleration time relation . it will be 6t that is linear.
35.

An electron in the hydrogen atom makes a ‘jump’ from energy level 5 (E=-0.54 eV) to energy level 2 (E=-3.40 eV), calculate the energy of the emitted electromagnetic radiation released ANSWER NEEDED URGENTLY

Answer»

I don't KNOW the ANSWER MARK MEASURE BRAIN just 0.54 3.40

36.

The radius of curvature of each surface of a convex lens of refractive index 1.5 is 0.40 calculate its power.

Answer» HOPE it HELPS MARK as BRAINLIEST
37.

Dissolving salt in water is dash change ​

Answer» CHEMICAL CHANGE PLS MARK me as brainliestExplanation:
38.

How much turn will be on the primary coil of a transformer designed to take in 33,000 V and give an output of 240 V, if the secondary has 6 turns of coil. ANSWER NEEDED URGENTLY

Answer»

tion:How much turn will be on the PRIMARY coil of a TRANSFORMER designed to take in 33,000 V and give an OUTPUT of 240 V, if the secondary has 6 turns of coil.

39.

Quetsion number 6 in the picture i have uploaded

Answer»

the ANSWER is 1.02 into 10TO the POWER MINUS 12A

40.

Calculate the mass (in metric tons) of a blade made of Aluminum, M_{blade}^{Al}M blade Al ​ , setting the stress limit equal to fatigue limit of the material, \sigma_0^{Al} = 150 MPaσ 0 Al ​ =150MPa.

Answer»

he value of M = 2 X (Ao ^flap + A0 ^EDGE) x 86 x 2700 = M / 1000 in tons.Explanation:We need to calculate this first:Ao^flap =  81 x 8π x σo^flap x ho^flap x ρ (air) x V  x r^2 x L^3 σo^flap = 150 x 10^6 Then calculate Ao^edge σo^edge = 150 x 10^6 Then find the value of MM = 2 x (Ao ^flap + A0 ^edge) x 86 x 2700Hence the value of M = 2 x (Ao ^flap + A0 ^edge) x 86 x 2700 = M / 1000 in tons.

41.

If root-mean-square voltage of a supply is 240 V, calculate the maximum voltage of the? ANSWER NEEDED URGENTLY

Answer»

he RMS VOLTAGE is 240 volts, so the peak VALUE Vm= V. √2 = 340 volts.Explanation:pls mark it BRAINLIEST

42.

an electron moves in a circular orbit of radius 10cm with a constant speed of 4.0x10to the power6 ms-1. Determine the electric current at a point on the orbit

Answer»

An electron moves in a circular ORBIT of radius 10cm with a CONSTANT speed of 4.0x10to the POWER6 ms-1. DETERMINE the ELECTRIC current at a ...

43.

Name the type of mirror used by the dentist​

Answer»
44.

Name the type of mirror used as a reflector in the search light​

Answer» CONCAVE mirrorsExplanation:
45.

For which medium capacitance is high ? Air , mica , water , or metal ?

Answer»

MetalExplanation:Metals are ASSUMED to have a high VALUE of dielectric constant so they have high CAPACITANCE.

46.

Answer me please fast .​

Answer»

xides which react with both acids as well as bases to produce salts and water are known as amphoteric oxides. Amphoteric oxides INCLUDE lead oxide and zinc oxide, AMONG MANY others. One type of amphoteric species are amphiprotic molecules, which can either DONATE or ACCEPT a proton (H+).

47.

A light ray incident at ___________ on a mirror retraces its path.

Answer»

is the ANSWER. I HOPE it HELPS U my MATE

48.

What is the SI unit of velocity​

Answer»

the S. I UNIT if VELOCITY?S. I unit of velocity is m/sec...@vermanishank28

49.

Calculate the net value of force with which body is moving 30N or 50N

Answer»

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50.

a string of decoration light is formed by joining 22 bulbs of 12v each.when joined across 229v mains,the power consumption is found to be 26.4 w.calculate the redistance of each bulb

Answer»

120 Ω for 1 bulbExplanation:POWER of 22 bulbs = 26.4WVoltage of 1 bulb is 12VTherefore VOLTAGE of 22 bulbs = 12x22= 264 (voltage is added in series)Power = / R 26.4    =  264 x 264/ R   R       =   264 x 264 /  26.4   R     =  2640 Ω for 22 bulbs Resistance of 1 bulb is 2640/22 = 120ΩHope this HELPS!!CHEERS!!