Explore topic-wise InterviewSolutions in Current Affairs.

ANSWER:

the SEVEN COLOURS of PRISM AWAY from each other

Energy Levels in GASEOUS ATOMS and Molecules. Emission spectra for atoms APPEAR as a series of lines, because ELECTRONS fall from higher energy states to LOWER ones and emit energy as electromagnetic radiation

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##ANSWER##

your answer is KG....

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Answer:

Just FK off bro and NEVER SHOW your fk ING FACE ever to me

Because it just ACTS as a NORMAL electric contact in the circuit or wiring. In order to reduce the area and to maintain a minimum RESISTANCE to generate heat, fuses are made as thin. A FUSE wire should not have high resistance or low resistance. That is the fuse thickness increases with the CURRENT rating.

because the speed of all electromagnetic waves are the same, wavelength decreases while FREQUENCY increases. The SHORTER the wavelength, the HIGHER the frequency. Why are some electromagnetic waves HARMFUL to you but others are not? the HIGH frequencies and shorter wavelengths penetrates body easily.

I don't KNOW OK.....

The driving force is continually adding energy to the oscillator because it is doing work on it. But if the oscillator is undamped that energy cannot escape so it GOES into continually increasing the amplitude of the oscillation. As long as the driving force is applied the amplitude of the oscillation will keep increasing.

In practice there is no such THING as a PERFECTLY undamped oscillator so the amplitude builds up until the rate of energy loss through DAMPING equals the rate the driving force is adding energy, then stabilises at that point.

ANSWER:

i HOPE this answer is HELP you

An incandescent light bulb, incandescent lamp or incandescent light globe is an electric light with a wire filament heated to such a high temperature that it glows with visible light (incandescence). The filament is protected from OXIDATION with a GLASS or fused quartz bulb that is filled with inert gas like ARGON or a vacuum. In a halogen lamp, filament evaporation is slowed by a chemical process that redeposits metal vapor ONTO the filament, THEREBY extending its life.

Answer:

the AERATED water BOTTLES means the excess amount of oxygen and minerals are present in the water. which dissolved under certain PRESSURE and if this pressure SUDDENLY decrease due to change in atmospheric pressure , the bottle will certainly burst with decrease the amount of dissolved oxygen in water , this tends to change the aerated water into normal water .

Answer:8%

Explanation:

KINETIC energy⚡= ½mv²

=2 + 2×3

=2+6

=8%

HOPE it HELPS.....

Answer:

Initial VELOCITY(u) =10m/s

Initial velocity(u) =10m/sFinal velocity(v) =60m/s

Initial velocity(u) =10m/sFinal velocity(v) =60m/sAcceleration =(v-u)/t

Initial velocity(u) =10m/sFinal velocity(v) =60m/sAcceleration =(v-u)/t a=(60-10)/10

Initial velocity(u) =10m/sFinal velocity(v) =60m/sAcceleration =(v-u)/t a=(60-10)/10 a=50/10

a=50/10 a=5

Therefore, acceleration is 5m/s.

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ANSWER:

the ANGLE between 1 is ZERO

ANSWER:

Explanation:1

Answer:30 ms^-2

Explanation:

AVG. Acceleration = CHANGE in velocity/total TIME

Or average acceleration(a -avg.)=area under a-t GRAPH (A)/time taken

Here (A) =1/2×(10+20)×40 (area of trapezium)= 600

Thus a-avg.=600/time taken =600/20=30ms^-2

Answer:4%

EXPLANATION:

As we know %error in L =dL/L×100 and

% error in L^2=2×dL/L

And here surface AREA of cube = 6×L^2

So% error in surface area of cube =2×2=4% since here,dL/L=2%.

Also 6 is not CONSIDERED is not considered since it is a CONSTANT and is fixed.

ANSWER:

BAROMETER MEASURE AIR PRESSURE.

ANSWER:

PARALLEL 3OHM SERIES =12OHMS

ANSWER:

A=g

When droped

Explanation:

ANSWER:

EXPLANATION:PLANT

Answer:

(B) 2 BM is the CORRECT answer.

EXPLANATION:

Given data:

equilateral TRIANGLE ABC, AL, BM and CN are medians. FORCES along BC and BA

represented by them.

To find force which willl have a resultant represented by =?

SOLUTION

Consider equilateral triangle ABC

AL, BM and CN are medians.

Forces along BC and BA

represented by say F and F' respectively.

From figure we get to know that,

BA+BC=BD

BA+BC = 2BM

Thus, the resultant of the forces will be given by 2BM.

ANSWER:

€naught KA matrak neutan-metre²/(COULAMB)² HAI

ANSWER:

distance TIME with UNIFORM velocity and zera ACCELRATION

⭐《ANSWER》

↪Actually welcome to the CONCEPT of the KINEMATICS

↪Basically here , we can see that ,

↪As here the frictional force is ZERO , so the only applied force is only ACTING on it ,

↪thus in the first case , where only BLOCK A is present , we GET as ,

↪F = mA ( a)

...where, a is the acceleration ,

↪thus in the second case , As there are both BLOCK A and BLOCK B , the acceleration becomes a/5

↪so we get as ,

↪F = (mA + MB ) a/ 5

↪so combining we get as ,

〽⭐mA:mB = 1:4

ANSWER:

C=18000

V=50v

T=1hour

firstly we have to FIND the current

so (I=Q/T)

I=18000/60*60

I=5A

Now,we have to calculate the resistance-

V=IR

so,R= V/I

R=50/5

R=10ohm

Now, Heat=I^2*R*T

H=5^2*10*60*60

H=25*36000

H= 900000Joule

ANSWER:earth is a planet and MOON is a NATURAL satellite of earth.

Explanation:

Planets revolve around SUN where as satellite revolve around planets

Answer: theta=53 DEGREES

Explanation: since the RESULTANT is perpendicular to 3 unit so the two vectors and resultant would form a right angle triangle with hypotenuse=5units and BASE =3 UNITS leading the third side to be 4 units . A/Q theta is angle between 5 unit vector and 3 unit vector . So cos(theta) =3/5 and this implies that theta=53 degrees.

HERE IS YOUR ANSWER

500 j/sec

ANSWER: CONVEX LENS .

Answer: average velocity is TOTAL DISPLACEMENT / total time taken, and the displacement depends on the path travelled so no such formula.

I STILL think that you MIGHT be asking about ANGULAR VELOCITY rather than LINEAR VELOCITY.

In that case angular velocity is THETA/ time taken

Explanation:

Answer:

180 degrees

Explanation:

Given A×B=0 implies sinx=0 and angle is a either 0,pi etc

Given A.B=Ab implies cosx= pi

So the COMMON SOLUTION is pi

THEREFORE angle betwee them is 180 degrees

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Answer:

ACCORDING to Sir Albert Einstein, Worm Holes are the short cuts of the universe which can be used to TRAVEL to DIFFERENT points of the universe in a very short time.

Black holes are the point of infinite gravity. They are MADE when a star kills it self and gives birth to a black hole.

Both of these were actually mysteries until the first pic of black hole was released by the SCIENTISTS that you can see on web which is actually a pic of the shadow of black hole .

While there is no proof of worm holes yet and it is still a mystery. The concept of worm holes was developed by Sir Albert Einstein.

answer : OPTION (3) 20m

this question is little different. question want to find distance covered by particle in first two SECONDS of descent.

particle first moves upward, after reaching a specific height, it falls DOWNWARD (descending motion). here observing point is that at specific height velocity of particle becomes zero after then it will ready to FALL.

so, initial velocity of particle in descending motion, u = 0

distance travelled by particle , s = ut + 1/2 at²

here, u = 0, t = 2s and a = -g = -10m/s²

then, s = 0 + 1/2 (-10m/s²) × (2s)²

= -20m [ here negative sign indicates that particle is moving downward ]

hence, distance covered by particle in first two seconds of descent will be 20m

Answer:

Explanation:

Answer:

Explanation:

Velocity after rising height h

v = sqrt(2aS) ………[∵ initial velocity of balloon is zero]

v = sqrt(2 × G/8 × h)

v = sqrt(gh/4)

This is the initial velocity of stone.

Time taken by stone rise extra height and come to it’s point of PROJECTION is

t1 = 2U / g

= 2 × sqrt(gh/4) / g

= sqrt(h / g)

Final velocity of stone when it TOUCHES the ground

v’ = sqrt(u^2 + 2aS)

= sqrt[(gh/4) + 2gh]

= sqrt[2.25 gh]

= 1.5 × sqrt(gh)

Time taken by stone to FALL down from point of projection

t2 = (v’ - u) / a

= [(1.5 × sqrt(gh)) - sqrt(gh/4)] / g

= sqrt(gh) [1.5 - 0.5] / g

= sqrt(h / g)

Total time taken for stone to reach the ground

T = t1 + t2

= 2 sqrt(h / g)

Answer:

Due to the free electrons, current FLOWS through the CONDUCTOR when a potential DIFFERENCE is applied across the conductor. ... Due to this, ARESISTANCE is offered to the motion of electrons flow due to increased NUMBER of collisions. Flow of electrons is nothing but current.

Answer:

8 % no DOUBT

K.E = mv^2/2

m =2 % for V = 3+3 =6

total 8

ANSWER:

Concave mirror is USED to obtain a PARALLEL beam of LIGHT from a small lamp.

The PN JUNCTION. How Diodes WORK? (English VERSION) - YouTube

Answer:

Methods

There are three ways to charge an object: friction, conduction and induction. Friction involves rubbing on material with another, resulting in electrons MOVING from one surface to another. Most people have EXPERIMENTED with this form of charging an object, either rubbing a balloon on a JUMPER to make it cling or by shuffling their feet over a carpeted surface to build up an electrical charge to SHOCK someone. Friction is useful for charging insulators, which are materials that aren't good conductors. Conduction on the other hand is used to charge things that are good conductors, such a metal. A charged object is touched to the conductive material and some of the charge, whether it is positive or negative, will be transferred. The final way to charge an object is by induction and is, again, BEST for conductive materials. The uncharged conductive material is grounded on any neutrally-charged material and the charged object is held near it. The charge will flow between the two objects and the uncharged conductor will develop an opposite charge to the original charged object.

ANSWER:

PLZZ plzzz

Explanation:

ANS this PLZ

EXPLANATION:

HOPE it HELPS.............

Answer:

a continuous cooling of COPPER wire into a CYLINDER is SOLENOID the current increase in solenoid by the no of turns of copper wire COILED

ANSWER:

same

Explanation:

CAUSE it has UNIFORM ELECTRIC FIELD

EXPLANATION:

mu+mu= mv+mv

2*3+2*(-3)=2*?+2*?

0=4v

v=0 m/s

ANSWER:

but where is the QUESTION

EXPLANATION:

how can I answer

Answer:

SI Unit of electric potential is VOLTs

Explanation:

Voltmeter is USED to MEASURE the electric potential.

u =10

v=5

t=2s

a=v-u/t

=5-10/2

=-5/2

=-2.5

f=a

=-2.5*1

=-2.5N

The DIRECTION of the FORCE is from WEST to east.

Thus, the force applied on it is 2.5N.

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Answer:

200 watts..

Explanation:

M=2 kg

u= o m/s

v= 20 m/s

t= 4 s

so, acceleration = (v-u)/t

= 20/4

= 5 m/s^2

therefore, FORCE= 2×5=10 N

s= 1/2 at^2

= 1/2×5×16

= 40 m

so, work = force×displacement

= 10×40

= 400 j

therefore, power = work /TIME

= 400/2

= 200 watt

hope ITT helps..

:))

Answer:

THERMOFLASK.

Explanation: Thermoflask is a device which has gaps between the two WALLS which separate from the surrounding.This HELPS in any LOSS or GAIN of heat.Therefore if we put any HOT or cold substance inside it does not get cold  or hot respectively.