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.

From fleming left hand rule the magnetic field region it will anticlockwise direction solution

Answer»

Whenever a current carrying CONDUCTOR is placed in a magnetic field, it experiences a FORCE due to the magnetic field. The direction of force acting on the conductor can be FOUND out using Fleming's Left HAND Rule. ...Fleming's Left Hand Rule is used in electric MOTORS which are used in fans, mixers, printers, etc

2.

Pls help me in doing this question

Answer»

I THINK 1 KG आंसर ऑफ क्वेश्चन

3.

Why should we connect electric appliances in parallel in a household circuit? What happens ifthey are connected in series?

Answer»

Potatoinal difference will be same in electric APPLIANCES due to PARALLEL but they are conected in series then potational difference will be not same due to this all appliances will be not work PROPERLY

4.

The percentage error in mass and speed are 2% and 3% respectively.what is the maximum error in kinetic energy calculated using these qualities

Answer»

The PERCENTAGE ERROR in KE is2+6=8%

5.

moon is at a distance of 400000000metre from the earth. a radar signal is transmitted from the earth to the moon is __

Answer»

LET the vertical component be Bv

Horizontal component, Bh

Given, Bv=root3xBh

THEREFORE, tan THETA=Bv/Bh

=ROOT 3 Bh/Bh

=root 3

therefore theta = 60 degree


6.

What is a value of 1 KWH in Joules?

Answer»

HEYA..

here is you answer..

1 KWH = 3.6 × 10^6 JOULES.

It MAY HELP you. ☺☺

7.

why does it happen if a stationary bus suddenly speeds up passengers are thrown in the backward directions

Answer»

It HAPENS DUE to INERTIA of MOTION

8.

The gravitational field in a region 2 i + 3 j the equation for

Answer»

The gravitational field in a region is given by E = ( 2 i+ 3 j) N/kg. Show that no work is done by the gravitational field when a particle is moved on the LINE 3 y + 2 x = 5.
[Hint : If a line y = mx + c MAKES angle θ with the X-axis, m = tanθ

9.

An element 'x' is dropped in blue colour solution 'y'. Element 'x' get reddish colour on it's surface tje solution 'y' turns to green colour. Guess 'x' and 'y' chemical?

Answer»

X - IRON
Y - Copper Sulphate
Fe + CuSO4(aq) ----> FESO4 + Cu
FeSO4 colour is light green
CuSO4 is blue
and after REACTION copper gets DEPOSITED on remaining iron and form reddish coating..
if u like mark as brainleist..

10.

a man in a balloon rising vertically with an acceleration of 4.9 metre per second square religious equal to second after the balloon is let go from the ground the greatest height above the ground reached by the ball in

Answer»

PLZ COMPLETE the QUESTION.....

11.

Oil food material floshed in nitrogen

Answer»

This is done to PREVENT the oily from oxidizing, which is part of what MAKES them GO STALE.

12.

The angular velocity of a particle moving in a circle of radius 50 cm

Answer»

Radius=50cm=1/2m.
the ANGULAR velocity=v/(1/2)=2V

13.

Which of the following elements is electronegative? [ ]a) Sodiumb) Oxygen c) Magnesium d) Calcium

Answer» OXYGEN................................
14.

Represent each of the following atoms using Lewis notation: (a) beryllium(b) calcium (c) lithium

Answer»

The LEWIS notation of the given elements will be as -

  • In Lewis representation, an electron dot diagram is constructed based on the number of VALENCE electrons of the given species.
  • Firstly, the symbol of the ELEMENT is written, and then the dots in number equal to that of valence electrons are put around it.
  • The number of valence electrons is equal to the number of electrons in the OUTERMOST shell of the atom.
  • The lewis notation of BERYLLIUM, calcium, and lithium is attached. Kindly refer to it.

15.

What us the second stage of scientific investigation

Answer» SCIENTIFIC investigation is the WAY in which scientists and researchers use a systematic approach to answer questions about the world around us. Read on to find out more. A quiz is PROVIDED to TEST your UNDERSTANDING.
16.

A, B, and C are three elements with atomic number 6, 11 and 17 respectively.i. Which of these cannot form ionic bond? Why?ii. Which of these cannot form covalent bond? Why? iii. Which of these can form ionic as well as covalent bonds?

Answer»

element with atomic no 6 cannot form ionic bond EASILY because for the formation of ionic bond it MUST lose or gain 4 electrons .For this it requires more energy.

Element with atomic no 17 cannot form COVALENT bond easily because for the formation of covalent bond it must share 7 electrons which is HIGHLY impossible.

element with atomic no 11 can form both ionic and covalent bond

17.

Please anyone answer the above question

Answer» VELOCITY in MEDIUM is 250000km/s
18.

Plz give answer to me

Answer»

what is the QUESTION

19.

The position time equation for a particle is given by x(t) = 2t3/25 for first 5 second then the particle moves constant velocity for next 5 seconds and then is brought to rest uniformly in next 5 seconds plot rough sketch of position versus time graph for 15 second

Answer»

Jys9ss69xoyzoyzpyzpyzkfztozzkzgkzlxkzy

20.

One of them rectangular components of a force of 40N is 20N find the angle it makes with this component ?

Answer»

F=40

given F [email PROTECTED]=20

[email protected]=20/40

=1/2

.: the angle is 60 degree

21.

Do we have to make changes every time in the temparature and pressuer to change the state of a matter

Answer»

Yes, everytime when we CHANGES the state of matter we have to change the temperature or PRESSURE because with the HELP of temp. and pressure particles of matter changes it's properties and hence it's state

22.

A particle move along the x axis having equation x=t(t-1)(t-2)where x is i m ad here t in seconds

Answer»

Differentiate X WRT t to GET V and REPEAT to get accn

23.

Give reason that how is gravitational force produced

Answer»

Hello


This was quite unknown about how gravitational force came into existence .

But latest scientific RESEARCH stated that :-
According to string theory ( it is hypothetical theory and hasn't been proved yet ) , all the THINGS in this universe is made up of strings and their features are RESULT of the movement of strings in PARTICULAR order .

Strings are the basics of every thing.

& the movement of string causes gravitational force ( according to string theory ) . This particular strings partucles are known as " Gravitons " .

24.

Explain the formation of sodium chloride and calcium oxide on the basis of the concept ofelectron transfer from one atom to another atom.

Answer»

A. FORMATION of sodium chloride (NaCl):
1. Sodium chloride is formed from the elements sodium (Na) and chlorine (Cl).
2. When sodium (Na) atom loses one electron to get octet electron configuration, it
FORMS action (Na+
)
3. Now Na+
gets electron configuration that of Neon (Ne) atom.
Na →Na+
e-
4. Chlorine, has storage of one electron to get octet in its valence shell.
5. So, it gains the electron that was lost by Na to form anion and gets electron
configuration of Argon(Ar)
Cl + e-
→ Cl
-
6. Transfer of electrons between Na and Cl atoms, results in the formation of Na+
and
Cl
-
ions.
7. These oppositely charged ions get attracted towards each other due to electrostatic
forces and forms the compound sodium chloride (Nacl)
Na+
+ Cl
- → NaCl
Formation of Calcium OXIDE (CaO):
1. Calcium (Ca) REACTS with Oxygen (O) to from an ionic compound calcium
Oxide(CaO).
2. Calcium atomic NUMBER is 20. Its electronic configuration is 3. 8, 8, 2.
3. Ca→ Ca+2 + 2e-
i.e., calcium losses 2e-
and becomes Ca+2.
4. Oxygen atomic number is 8. Its electronic configuration is 2, 6.
5. 2
2e O O− ⎯⎯⎯−→ i.e., Oxygen 2e-
and becomes O-2.
6. These oppositely charged ions gets attracted towards each other due to electrostatic
forces and form the compound calcium Oxide (CaO)
Ca+2 + O-2 → CaO

25.

Explain the difference between the valence electrons and the covalency of an element.

Answer»

Valance elw
ectron outermost electron and covalancy is how MANY atoms is ATTACHED to CENTRAL atom

26.

Relationship equation between fahrenheit celsius and kelvin

Answer»

This is the RELATION between CELSIUS, FARENHEIT and KELVIN

27.

Reflection characteristics produced by concave mirror

Answer»

BETWEEN P AND F:-
behind MIRROR
virtual and ERECT
magnified

AT F:-
at infinity
real and inverted
enlarged

BETWEEN F AND C:-
BEYOND C
real and inverted
magnified

AT C:-
at C
real and inverted
same size

BEYOND C:-
between F and C
real and inverted
dimnished

AT INFINITY:-
at F
real and inverted
smaller

28.

1/3rd at the speed of 10mph and the next 1/3rd at the speed of 20mph and next 1/3rd at the speed of 60kmph find average speed

Answer»

Let total distance be 3X

first 1/3 rd at a SPEED of 10 mph

so, TIME = (3x × 1/3)/10 = x/10 h

second 1/3 rd at a speed of 20 mph

so, time = (3x × 1/3)/20 = x/20 h

third 1/3 rd at a speed of 60 mph

so, time = (3x × 1/3)/60 = x/60 h

So, total time = x/10 + x/20 + x/60

= (6x + 3x + x)/60 = 10x/60 = x/6 h

So, average speed = total distance/total time

= 3x / (x/6) = 18 km/h

29.

Newton's laws and its completeness in describing a particle motion+mechanics

Answer»

How to the NEW ONE is not the

30.

A train travels with a speed of 60 km per hour from the station A to station B and then comes back with a speed 80 km per hour from stationB to station A . First the average speed and second the average velocity of train

Answer»

What is meant by STATION A and B . TELL that station name eg Surat station

31.

which of the following is moving faster .justify your answer? a.A scoter moving with the speed of 300m/min. B. A car moving with the speed of 36km/h.

Answer»

A SCOOTER MOVING with SPEED 300m/min is moving FASTER.

32.

Which part of a sitar vibrate?

Answer»

Strings of Sitar VIBRATE .

ACTUALLY , sitar player himself makes it to vibrate to produce the MUSIC of WHATEVER he WISH to .

33.

a car posses avg velocities of 5ms,10ms,15ms in first , second, third seconds wt is the total distanceby the car covered by the car in these 3 seconds

Answer»

30 m
Taking the case of constant acceleration in parts with constant average VELOCITY gives the same answer.
So the distance travelled in 1st second = 5 m
Distance travelled in 2nd second = 10 m
Distance covered in 3rd second = 15 m
Which makes the total distance travelled = 5m + 10M + 15m = 30 m.

34.

When the scooter and truck are collide why the scooter is thrown away?

Answer»

Bcz of MASS .....
when a small thing STRIKE with a LARGE ONE then smaller one will get affected first. It is just bcz of mass ..

35.

Pushing a stalled vehicle which type of work sentence is this

Answer»

Yisodyyodoydidyodpddp6d59s8sio6d96

36.

Electron configuration of an atom is 2, 8, 7 to which of the following elements would it bechemically similar? [ ]a) nitrogen(Z=7)b) fluorine(Z=9) c) phosphorous(Z=15) d) argon(Z=18)

Answer»

Dear STUDENT,

◆ Answer -

(b) Fluorine (Z=9)

EXPLANATION -

Given that electronic configuration of the UNKNOWN atom is 2, 8, 7.

Electronic configuration of Fluorine will be 2, 7.

As no of ELECTRONS in last orbit of unknown atom are same as that for fluorine, they will be chemically similar.

Thanks dear. Hope this HELPS you..

37.

Spherical ball made of steel when dropped in mercury container will

Answer»

It will FLOAT on the mercury because the DENSITY and the MASS of mercury is more than the steel ball

38.

Name the effect caused by balanced external forces on a body

Answer»

Forces that are equal in SIZE but opposite in direction are calledbalanced forces. Balanced forces do not cause a change in the motion of objects. Forces that cause a change in motion of objects are called unbalanced forces. Unbalanced forcescan change the motion of an object in TWO ways....

I hope it help you..
PLEASE mark me BRAINLIST

39.

a aeroplane is rising vertically with acceleration f m/s2. Two stones are dropped from it at an interval of time t. The distance between them at time t' after second stone dropped will be:

Answer»

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40.

A boy throws ball into at regular interval of 2sec . Then next ball is thrown when the velocity of first bsll is zero. How high do the ball rise above his hand

Answer»

MAYBE this HELPS you

41.

If the force is propotional to square of velocity then the dimension of propotionality constant

Answer» HEYA MATE,

HERE IS UR ANSWER.

Thanks for asking this QUESTION.

Force is in Newtons. Velocity is in m/s. So if we have:

F=kv2⟹k=Fv2

then the proportionality CONSTANT k will have units of

[k]=[F][V]2=Nm2s2=kg⋅ms2⋅s2m2=kgm

I HOPE IT HELPS U.
42.

Cartilage is present in the joints of the body which helps in their smooth movement. With advicds this cartilage wears of how does it affect the movement of the joints

Answer»

It affects them by RUBBING against each other and CAUSING pain. It usually RESULTS in ARTHRITIS

43.

Simple essay on topic science expriments.

Answer»

Goal of this project is to use paper chromatography to see which dyes are used in the coatings of your favorite colored candies. Why do different compounds travel different distance on the piece of paper. How is an Rf value useful. What is chromatography used for. Candy with colored coatings- Skittles and M & M’s At least 30 STRIPS of paper- coffee filters or chromatography paper 3 cm by 9 cm Wide-mouth jar Pencil Ruler Tape Water Toothpicks FOOD coloring ( red, green and blue) 1. Do your background research so that you are knowledgeable about the terms, CONCEPTS and questions above....   [tags: CHEMISTRY, science EXPERIMENT]

44.

The velocity of a body is given by the equation V=B/t+ct²+dt³. Find the dimensional formula for B.

Answer» HEY MATE DIS is UR ANS
45.

What is work. plzzzz do not spam.

Answer» HEY mate here is your answer



work is the ACTIVITY INVOLVING MENTAL or physical effort DONE in order to achieve a result.



Hope it will help you
46.

How you will experimentally prove ohms law in answer in short

Answer»

Introduction:

      Ohm’s law states that,

     

Where V. I, and R represent the voltage in volt, current in ampere, and resistance in ohms, respectively, for a resistor or segment of DC circuit. R is the equivalent resistance if the segment CONSISTS of multiple resistors.

Experiment requirement:

Every group will be provided the same equipment as last week including the resistors drawers, a circuit board, cables, and two mulitmeters.

List 1

Components:

R1, R2, R3, R4, and R5

List 2

Circuit segments:

AB, AC, CB

Build a circuit according to the diagram in figure 1 using resistors with nominal values as R1=100Ω, R2=220Ω, R3=1kΩ, R4=2.2kΩ, and R5=1kΩ. A power supply should be connected to points A and B. Vary the voltage setting on power supply from 10 to 20V with at most 1V increment. Choose three different components/segments (at LEAST one from each category in Lists 1 and 2). From these three components/segments, each group member pick one and measure the relevant variables to produce a V vs. I plot. The data and plot should show if the Ohm’s law is satisfied (or not).

Precaution: pick a dedicated mutlimeter as an ammeter and fix its scale to 200mA. This will avoid a multimeter from switching between ammeter and voltmeter, which can easily blow the fuse. Use the other multimeter when measuring resistance and voltage.

Lab report requirement:

State your procedure clearly. Describe data analysis including uncertainties. Include enough details in your data table(s) and plots. CITE your data and plots to support your conclusion.

Hint:

You can use measured R and I to calculate V, then compare it with measured V, or

You can fit V vs. I plot with linear function, then compare the slope (should be R) with the measured R.

These are two common approaches, but you are not LIMITED to them. For whichever approach you pick, make sure you understand the uncertainties involved.

HW: i need help just writing the procedure .

1. Don't need intro. and theory SINCE it's a simple equation. Don't need circuit diagrams since they are given.

2. Write up your procedure: pick three segments/components as required in lab instruction, describe your data collection/analysis/plot. How can you tell if the Ohm's law is satisfied or not?

3. Application of Ohm's law: calculate V and I for every resistor using resistor's nominal value and 10 V between points A and B in circuit.

Expert Answer

100% (3 ratings)

VIEW THIS ANSWER

47.

a body starts with an initial velocity of 10 M per second acceleration 5 M per second square find distance covered by it in 5 seconds

Answer» SINCE,
u=10m/s
a=5m/s sq.
t=5s
therefore;s=ut +1/2at sq.
=10×5+1/2 ×5×5
=50+25/2
=125/2
=62.5m ANS
48.

balls are dropped from roof of tower at a fixed interval of time . at the moment when. 9th ball reaches ground the nth ball is 3/4height of tower . what is the value of n

Answer» 12......................
49.

Explain why do sports man use soes with spikes

Answer»

To increase between the ground and the SHOES and ALSO for a better grip so, that they don't SLIP while walking or running

50.

Which is a better fuel cow dung cake or Biogas Give two reasons

Answer»

HEYA MATE,

HERE IS UR ANSWER.

Thanks for asking this QUESTION.

1.COW dung cake has low calorific value i.e. 3.1kJ/g than the Methane gas (5.5kJ/g), a biogas constituent.

2.Bio gas is a clean fuel that burns WITHOUT smoke and leaves no ash, unlike cow dung.

3.The by-product os biogas PLANTS i.e. the spent slurry, being rich in nitrogen and phosphorus is a good manure.

I HOPE IT HELPS U.