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.

calculate the ratio of moles 3.6 gram of water and 4.4 gram of carbon dioxide atomic mass of carbon 12 unit hydrogen 1 unit oxygen 16 unit

Answer»

your answermoles in 3.6 gm of H2O = 3.6/18= 6/30 = 1/5moles in 4.4 gm of CO2 = 4.4 / 44 = 1/10 RATIO OF MOLES OF CO2 or h2o = 1/5/1/10 = 2:1 is the ANS. ✨ hope it helps you ✨

2.

Magnetic moments of two identical magnets are m and 2m respectively. Both are combined in such a way that their similar poles are same side. The time period in this case is t1 .If polarity of one of the magnets is reversed its period becomes t2 then find out ratio of their time periods t1/t2.

Answer» EAR I am not UNDERSTAND it.
3.

Maintain the temperature of blood around 370 degree by putting it in water jacket or heating coil

Answer» EAR I am not UNDERSTAND it.
4.

A charge particle moves in cir orbit find relation in mag monwnt andangar momentum

Answer» DEAR..... WRITE UR question clearly.... it's not getting...
5.

A charge q is uniformly distributed in a ring of radius r.A sphere of an equal radius is constructed with its centre lying on the periphery of the ring the flux of electric field through the surface of the sphere will be

Answer» PLEASE don't be SORRY for the COUNTRY in this PANDEMIC SITUATION
6.

The average kinetic energy of simple harmonic oscillator is 12 Joule and it's Total energy is 5 joule it's minimum potential energy is?

Answer»

tion:vkegk2eyek2dy EDK V orgedt82du9d3khejg its minimum energy. 12 JOULE

7.

it is found that yellow light does not eject photoelectron from a metal. Is it advisable to try with orange light? and with green light

Answer»

light has LESSER ENERGY than yellow light. If yellow light couldn't eject a photoelectron, Orange light can't do it either.Green light has HIGHER energy than yellow light. So yes, you can TRY with green light.Answer: Green is advisable, but not Orange.

8.

an object is thrown upward to a certain height with a velocity of 3 M per second if the time required to reach the height is 5 second calculate the height at which it was thrown

Answer»

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9.

The length of wire is doubled by stretching it what will be new resistance of wire

Answer» WIRE is STRETCHING. Then. Its RESISTANCE WOULD be INCREASES..
10.

Magnetic induction equation for vertical cylinder with boundary conditions

Answer»

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11.

According to special theory of relativity the mass of a particle increases with the increase in the velocity with the observer why

Answer»

the OBSERVER will be at REST or its RELATIVITY to the PARTICLE will be SLOW

12.

A capacitor of capacitance 200 micro farad is charged to a potential of 1000w. The stored energy in wattsecond is

Answer» CHARGED capacitor is connected with ANOTHER uncharged capacitor , then charge transfer from charged capacitor to uncharged capacitor untill both attend same potential .now, A capacitor of CAPACITANCE 200 PF charged by 300V battery Means charge on this capacitor = CV = 200 × 300 pC = 6 × 10⁴ pC Now, charged capacitor of charge 6 × 10⁴ pC is connected with uncharged capacitor . Let final potential of both capacitors is V Then, intial charge = final charge 6 × 10⁴ pC = 200 × V + 100 × VV = 200 V Hence, final potential is 200V Now, energy stored intially on capacitor of 200pF = 1/2 CV² = 1/2 × (200pF)×( 300V )²= 100 × 10⁻¹² × 90000 J= 9 × 10⁻⁶ JFinally energy stored in both capacitors = 1/2(C + C')V²= 1/2 × (200pF + 100pF) × (200V)²= 150 × 10⁻¹² × 40000= 6 × 10⁻⁶ J Hence, difference in energy stored = intial energy - final energy = 9 × 10⁻⁶ J - 6 × 10⁻⁶ J = 3 × 10⁻⁶JRead more on Brainly.in - brainly.in/question/2753317#readmore
13.

hiii any one are freeplease answer my question ✌✌⛤⛤A particle of 50 grams is acted by a force of 100 dynes and assuming that the particle starts from rest calculate the distance travelled and velocity after 20 seconds ???I will mark it as brainlist answer

Answer»

he ATTACHMENT

14.

A bullet moving at 20m/sec.It strikes wooden plank and penetrates 4cm before coming to stop.The time taken to stop is

Answer»

s=4cm=0.04mv=0t=?s=(v+u/2)×t0.04=30+0/2×tt=0.04/15t=0.00267s

15.

A body thrown upward rises to a height of 10 m and comes bsck to initial position

Answer» ELOCITY, v=m/s(i) using formula, U is the VELOCITY with which the body is THROWN upward .(ii) Again,using the formulaV = U+gtTime taken to the body to reach the higher point.
16.

Explain with one example that frictional force is proportional to the normal fource

Answer»

und presses BACK with the same force in accordance with Newton's THIRD law. ... In other WORDS, the NORMAL force is the force pushing the two surfaces together, and the stronger the normal force, the stronger the force due to friction.

17.

A body of mass 1000 kg moving at a speed of 10 m per second is a speed of 50 metre per second in 20 seconds calculate the force required to do so

Answer»
18.

A boat can travel 10.2km upstream in 51 minutes. If the speed of water current is 1/5th of speed of boat in still water, how much distance in km the boat can travel downstream in 48 minutes?

Answer» N 14.4 KM.If speed of the BOAT=x km/h, then speed of the current=x/5 km/h and upstream speed=x-(x/5)=4x/5As boat can travel 10.2 km upstream in 51 minutes, so 10.2/(4x/5)=51/60 ,x=15So speed of the current=x/5=15/5=3 km/h and downstream speed=15+3=18 km/hDistance that boat can travel in 48 minutes or 4/5 HOURS =18*4/5=14.4 km
19.

A body of mass 2 kg is thrown up with speed of 25 m per second find its maximum te

Answer»

of CONSERVATION of ENERGY h=625/20

20.

On crossing tall plant with dwarf plant mendel found the ratio of dwarf plant in F2 generation A. 25÷ B.40÷ C.60÷ D.75÷

Answer»

sing tall PLANT with dwarf plant MENDEL found the ratio of dwarf plant in F2 generation B.40÷

21.

A ball is thrown vertically upward with a velocity of 98 m/s how high does the ball rise

Answer»

+2gs V=98U=0g=-10 S=? 98×98 =0+2×10s 98×98=20s 98×98/20=s S=480.2 m

22.

write how do you form a rainbow in classroom and explain the formation of rainbow in the sky using diagram give answer

Answer»

s_Guru_DevDear student,Rainbow is formed due to following reasons:Refraction, Dispersion of WHITE LIGHT , total internal reflection.Essential condition for formation of rainbow:1. Presence of raindrops2. To view rainbow, sun should be at your back.Formation:The rays of sunlight, enter the DROP near its top surface. At first refraction occurs , then white light is split up into & colours , violet most deviated and red least.Reaching the opposite side of drop each colour is refracted back into the drop because of total internal reflectionarriving at the surface of the drop , each colour is again refracted into air.We observe the rainbow when we view in between 42-20 DEGREES.

23.

Distinguish betwee loudness and intensity of sound

Answer»

ty of a SOUND wave is defined as the amount of sound energy passing through a unit AREA PER second. Loudness is a measure of the response of the ear to the sound. The loudness of a sound is defined by its amplitude. The amplitude of a sound decides its intensity, which in TURN is perceived by the ear as loudness.

24.

write the main features of the both atomic models and also mechanical any two limitations of bohr models

Answer»

ions of Bohr Atomic Model TheoryIt violates the Heisenberg Uncertainty Principle. The Bohr atomic model theory considers electrons to have both a known radius and orbit i.e. known position and momentum at the same time, which is impossible according to Heisenberg.The Bohr atomic model theory made correct predictions for smaller SIZED atoms like hydrogen, but POOR spectral predictions are obtained when larger atoms are considered.It failed to EXPLAIN the Zeeman effect when the spectral line is SPLIT into several components in the presence of a magnetic field.It failed to explain the Stark effect when the spectral line gets split up into FINE lines in the presence of an electric field.

25.

What will be the pressure exerted from a cubic foot cement block?

Answer» E did you THINK it's a COMPLETE QUESTION ....
26.

State any two advantage and disadvantage of green rivalustion

Answer»

ws AGRICULTURAL operations on a large scale.The Green Revolution has brought farming to a massive scale. Looking at the previous agricultural SECTOR, crops that were grown in huge volumes are only those that required extensive human intervention to grow healthy, which means that it was not that EASY. But now, we have made things easier, where most crops are being grown on an industrial scale even by the smaller farming community.. It can cause pests and weeds to develop hazards.This modern method of farming is believed to cause the emergence of POISONOUS weeds and pests that are difficult to control. Aside from this, there is also the concern of cross pollination between genetically modified organisms and traditional plants that could RESULT in invasive species.★___________________________★

27.

Explain the hands rules with one suitable example

Answer»

ic physics, HUND's rules refers to a set of rules that German PHYSICIST Friedrich Hund formulated around 1927, which are used to determine the term symbol that corresponds to the GROUND state of a multi-electron atom. The first rule is especially IMPORTANT in chemistry, where it is often REFERRED to simply as Hund's Rule.

28.

A ball is projected up from the ground with speed 30 m/s.What is the average velocity for time 0 to 4 seconds

Answer»

istance/time30. =distance/430×4. =distance120. =distance.average velocity=average displacement/average timeaverage velocity=120/4average velocity=30m/s.square

29.

A ball is thrown verticall upwards with the speed 120 m/s.Its speed at midpoint?

Answer» PEED is at MID POINT is of a BALL IS60 km/hr
30.

A ball of superconducting material is dipped in liquid nitrogen and placed near a bar magnet

Answer»

of SUPERCONDUCTING material is DIPPED in liquid NITROGEN and placed near a bar magnet. ... Both a superconducting material and nitrogen are DIAMAGNETIC in NATURE. When'a ball of superconducting material is dipped in liquid nitrogen, it behaves as a diamagnetic material.

31.

A stone is dropped from the edge of the roof find how fast does it move at the end of that fall

Answer»

y depends UPON height of ROOF it FALL according to

32.

The sun is red at sunset and sunrise why give reason

Answer» SUNRISE and sunset, the rays have to travel a larger part of the atmosphere because they are very close to the horizon. Therefore, light other than RED is MOSTLY scattered AWAY. Most of the red light, which is the least scattered, enters our eyes. Hence, the sun and the SKY appear red
33.

Difference between AM and FM??

Answer»

ference is in how the carrier WAVE is modulated, or altered. With AMradio, the amplitude, or overall strength, of the signal is VARIED to INCORPORATE the sound information. With FM, the frequency (the number of times each second that the current CHANGES DIRECTION) of the carrier signal is varied.

34.

Disadvantage of gravitational force

Answer»

ntages of gravityFor life on earth...Practically:DisadvantagesKeeps US on earth, difficult and expensive to travel into outerspace as we need to overcome the gravitational PULL of the earth.Makes it possible to FALL and hurt ourselves :(Limits the height of buildings we can build.Makes it impossible to fly (but makes it possible to do skydiving)OBJECTS fall due to gravity.

35.

in which blood vessels values are present what do you think is the functions of values in them give answer

Answer»

n FUNCTION of the VALVES in veins is to prevent back flow of blood. Blood in the arteries, after being pumped by the HEART, are under much higher PRESSURE than blood in veins so there is no need for valves in arteries to prevent back flow. It is PRESENT inside the veins.

36.

What is meant by conducting device in physics

Answer»

trical CONDUCTOR is a substance in which electrical charge CARRIERS, usually electrons, move easily from ATOM to atom with the application of voltage. CONDUCTIVITY, in GENERAL, is the capacity to transmit something, such as electricity or heat.

37.

an electric referigerator of power 400w is allowed to run 10hrs.per day.what is the cost of energy to operatevit for 30 days at Rs4.00 per kwh???

Answer»

0.4 KW.Time = 10 hrs/dayNo. of days = 30Rate = ₹4 /kwhCost = ?Energy consumed = KWH= 0.4 x 10= 4 unitsTotal energy consumed in 30 days = 30 x 4= 120 unitsCost = ₹ 4 x 120= ₹480Therefore the cost is ₹480HOPE IT HELPS YOU!!

38.

Two plane mirrors are at right angles to each other.A man stands between them and combs his hair with his right hand.In how many of the images will he seen using his right hand

Answer»

ould be INFINITE REFLECTION of MAN as the MIRRORS are ADJACENT

39.

In a house 5cfl lamps each of 18w works for 6hours. A; calculate the cost of electric energy consumed for 1 month at the rate of rupee's 4 per unit. B; how much can save if 7w LED bulbs are used instead of 18w CFL?

Answer»

will WORK. .

40.

How to Derive e=mc^2. How to derive Einstein's special theory of relativity?

Answer»

t ABLE you for the AR ER DONE and I will U to

41.

List of applications of prism used in our daily life?

Answer»

use prism in my DAILY LIFE but. BSF use PLEASE tag as brainleist

42.

The electron charge is 1.6*10^-19........Why didn't scientists writ 16*10^-20 ?????

Answer» ONE PLACE of DECIMAL is MANDATORY
43.

Is 1/20kg same thing as 50grams

Answer» 0 KG = 1000/20 GRAMS = 50 grams
44.

Which lens is used for the corrections of myopic person

Answer»

E ✌✌✌It was CORRECT by using CONCAVE lens.^_^^_^ HOPE IT HELPS ^_^^_^

45.

Please answer thia Q.,........

Answer» OW MATE SORRY...
46.

Hey mate on the level of 11 class please explain me the difference between Distance and Displacement. please don't copy it from google give me perfect answer

Answer»

te The answer of ur question is here DISTANCE1) It is the actual length of PATH covered by a MOVING body irrespective of direction in which the body travels2) It is scalar QUANTITY that means it only has magnitude3) It can never be zeroDISPLACEMENT1) It is the SHORTEST path between the initial and final position of the body along a certain direction2) It is vector quantity that means it has both magnitude and direction3) It can be ZERO hope it helps

47.

Hey mate solve this question from 11 class : For what value of small m. A vector = 2ivector +3jvector-6kvector is perpendicular to B vector. 3ivector-mjvector +6kvector

Answer»

te The answer of UR question is here HOPE it HELPS you

48.

All factors that influence our physical fitness can be controlled. Please select the best answer from the choices provided.TRUEFALSE

Answer»

s some people have some genetic DEFECTS WITHIN their own BODY  that CANT be controlled

49.

Write the four artifical source of light anser in brief

Answer»

ht, BULB, MOON, led, candle ETC

50.

Q.24a wooden block is floating on water in a beaker with 20% volume of the block above the water surface. Now the beaker is kept inside a lift which starts going up with constant acceleration equal to g. Then the block will

Answer» NT to find d the amount of WATER FLOATING while in LIFT or SOMETHING else