Explore topic-wise InterviewSolutions in Current Affairs.

Answer:

(b) is the correct answer.

Explanation:

Options (a) and (b) gives the displacement along the positive direction of x-axis. That is, the man moves from negative to positive direction.

He was initially at a negative position in both these options and moves towards the positive direction of x-axis which REFERS to positive displacement.

But in the coordinates given in (b) we can see that he was initially at a positive position and moves towards the left of the x-axis to reach a negative position.

In 2D for x-axis anything that moves from left to right irrespective of their initial or final sign can be called positive displacement, whereas if it moves from right to left it is called negative displacement.

If you are confused by this method of observation, you can use the following method to find the answer:

Displacement = (Final position - Initial Position)

Here the final and initial values in the bracket must be given their respective signs during the calculation. If you get the final answer of displacement as positive then it is positive displacement and if it is negative then the displacement is negative.

For example:

Lets TAKE the option (a) (-8m , 7m)

         Displacement = [ 7 - (-8)]

                                 = [ 7 + 8 ]

                                 = 8   (which is positive)

     for option (b) (7m , -3m)

         Displacement = [ (-3) - 7]

                                 = -10  (which is negative)

I explained it this much so that you would understand the CONCEPT and not just write the answer for this single question but all questions from this topic.

Hope this really helps you and sorry for being so lengthy.

Answer:

Working of an AC Generator

Due to this, an emf is induced in the armature. This produces an electric current through the galvanometer and the SLIP rings and brushes. The galvanometer swings between the positive and negative VALUES. This INDICATES that there is an ALTERNATING current flowing through the galvanometer.

Answer:

x = 1.29 * 10^(-3)

HOPE it's HELP U

Answer:

The PERIOD of a satellite is the time it takes it to make one full orbit around an OBJECT. The period of the Earth as it travels around the sun is one year. If you know the satellite's speed and the radius at which it ORBITS, you can FIGURE out its period.

ANSWER:

all of these were CORRECT

Answer:

Work energy THEOREM states that the change in kinetic energy of an OBJECT is equal to the NET work done on it by the net force. HENCE, work done on a body by a force is equal to the change in its kinetic energy.

ANSWER:

LOL do it yourself

Explanation:

IF

F = GMm/r^2

find the dimension of G

Where F is force

M and m are masses

r is DISTANCE

Answer:

1/Req=1/R1+1/R2+1/R3

1/Req=1/16+1/8+1/12

1/Req=3+6+4/48

1/Req=13/48ohm;Req=48/13

I=v/req

I=12/48/13

I=12×13/48

I=13/4ampere

hope it'll HELP you

ANSWER:culoumb

Explanation:

ANSWER:

He was 2.5 METRE AWAY from the LANE mirror when he was 5 METER away from it's image.

ANSWER:

dhxxjxixdxidbxibx

Explanation:

zhzsusdiwxjxididxncicc

The definition of contraction is the lengthening or shortening of a muscle fiber or a word FORMED by COMBINING the sounds of two LONGER words. An example of a contraction is the ACTION of the uterus during the birth process. An example of a contraction is the word doesn't from does not.

I hope you understand.

ANSWER:

(C)0.7s CORRECT answer

Answer:the BULB with less power will have LEAST RESISTANCE because power is directly PROPORTIONAL to resistance

Explanation:

Answer:

10^(19) electrons (if mass of DROP given is correct)

Explanation:

WEIGHT of the drop = mg

Electric force = Eq

Both the forces are acting in EQUAL & opposite directions to prevent FALLING of drop

Therefore,

mg = Eq

q = mg / E

= (1.6 × 10 g × 10 m/s²) / (100 V/m)

= 1.6 C

Number of electrons = q/e

= (1.6 C) / (1.6 × 10^(-19))

= 10^(19)

P.S: Please CHECK the mass of drop which you've provided, there must be a typo in it.

wavelength can be defined as the maximum distance a particle covers during the TIME of repeated to and fro MOTION DUE to so.

Hence we already stated it as distance so it's S.I. UNIT would be

METERS

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#Follow me

ANSWER:

wavelength electronics team with researchers and ORIGINAL equipment manufacturers that use laser DIODES, quantum cascades laser, or thermoelectrics in HIGH performance APPLICATIONS

ANSWER:

There are TWO types of lens.They are

1) CONCAVE lens

2) CONVEX lens

Answer:

h na to nhi YAR YE VALI baat hai kya shaadi ke liye dhanyvad to you and your help with a mammal you have any of your

Answer:

a lense DISPERSE a beam LIGHT by different mean of refraction .

Explanation:

there re TWO type of lense

i)CONVEX

ii)concave

Answer:

Explanation:

=> ACCORDING to the question, Two blocks of MASSES 2kg and 4kg are kept on smooth inclined plane. As inclined plane is smooth, we will not consider friction here.

=> Now, inclination of inclined plane is 30°

=> As the surface is smooth, accelaration of both blocks =  g*sin30°

= 10 * 1/2

= 5 m/s

=> that means both blocks move down with same acceleration. THUS  the normal force between the two blocks will be zero.

Answer:

a wave travelling y AXIS is CALLED ORDINATE

CORRECT QUESTION -

An ideal gas is at constant pressure its temperature is INCREASED by 10 K then its volume increases 0.2%. Find out its initial Temperature

♋♋YOUR ANSWERS♍♍

✍ T = 5000 K

════════════════════

EXPLANATION —

Given —

Temperature increased to 10k

Volume increases by 0.2 %

Let initial Volume be V✔

And initial Temperature is T✔

We have ideal equation

Since pressure is constant

Here R is ALSO constant

Therefore Ratio will be in proportion

⇒V is proportional to T

⇒V ∝ T

Final Volume =

Final Temperature

___________________________

WE HAVE V ∝ T

╒══════════════════════╕

♌ ‌ ‌‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ Thanks‌ ,hope you LIKE it !!‌ ‌ ‌‌ ‌♌

╘══════════════════════╛

Answer:

I THINK

C- y a sin ky COS wt

Explanation:

I hope it helps you

Explanation:

DIPOLE Placed in Electric Field

Hence, it does develop a TORQUE on the dipole. Further, there is a rotating effect due to this torque which is EXPERIENCED by the dipole. Therefore, in the presence of the uniform electric field, a dipole TENDS to align itself parallel to the concerned field.

hope it HELPS!

wish u luck..

ANSWER:

the answer of above QUESTION is a) ZERO

Answer:

315√3

Explanation:

w=f×d×cos angle

w=210×3×cos 30

w=630×√3/2=315√3

ANSWER:

700 APPROXIMATELY in a AVERAGE answer

HI mate

Here is your answer

Explanation:

The amount of work done is EQUAL to the energy used and both are measured in JOULES (J). It TAKES energy to lift a weight a certain distance, because you have to do work against the force of GRAVITY.

Known :

R = 100 ohms

I = 250 mA = 0.025 A

Asked: V?

Answered

The POTENTIAL DIFFERENCE at the END of the conveyance is:

V = I x R

  = 0.025 x 1000

  = 250 VOLTS

Known :

m = 5 kg = 5000 GR

p = 50 cm

l = 25 cm

t = 8 cm

Asked: Density?

Answered:

V = p X l x t

= 50 x 25 x 8

= 10,000 cm³

So the density of objects:

ρ = m / V

= 5000 / 10,000

= 0.5 gr / cm³

Answer A

ANSWER:

B is the CORRECT answer

KNOWN :

m = 500 gr 0.5 kg

To = 10 C

Tt = 110 C

Q = 20,000 J

Asked: c?

Answered:

c = Q / (mx (T-To))

  = 20,000 / (0.5 x (110-10))

  = 20,000 / (0.5x100)

  = 4000 J / KGC

Known:

m = 300 gr = 0.3 kg

To = 30 C

c water = 1000 J / KgC

U = 227,000 J / Kg

Asked: Q?

Answered:

Q1 = m x c x (T-To)

= 0.3 x 1000 x (100-30)

= 0.3 x 1000 x 70

= 21,000 J

Q2 = m x U

= 0.3 x 227,000

= 68,100 J

So the required heat = 21000 + 68100 = 89,100 J

Watt=NM/s

Power=600*10/10

=600W

ANSWER:

Don't KNOW SRY..............

The ANSWER is 1243578

Answer:

They chose a unit based on the amount of heat needed to RAISE the temperature of one gram of WATER from 14.5 to 15.5 degrees centigrade.

Explanation:

its HOPE you

ANSWER:

approx 6000 kgm^2/s^3.

Explanation:

1. OUTPUT power = mgh/t

= (10000×9.8×180)/3600

2. INPUT power = X

3. output power =( 80/100 )x

x = approx 6000.

EXPLANATION:

FRICTIONAL FORCE............. GRAVITATIONAL force ....

Answer:

The angle of reflection is 60 degrees. (NOTE that the angle of incidence is not 30 degrees; it is 60 degrees since the angle of incidence is measured between the incident ray and the normal.)

EXPLANATION:

MAKE me as brainaliest answer

Answer:

just because WATER have HIGHER density then air and in GOOGLE there is vacuum

1. when Russia occupied POLAND, the polish language was BANNED and it was replaced by the Russian language
2. MANY members of clergy in Poland began to USE language as a weapon of national resistance
3. The use of polish came to be seen as a SYMBOL of the struggle against the Russian dominance

EXPLANATION:

where is the DIAGRAM SHOW your diagram

Answer:

Explanation:

46g of Na atom

ATOMIC mass of Na=23u

Number of particles=Number of Moles x N

⇒(GIVEN WEIGHT/ Gram atomic weight) x 6.023 x 10²³

=(46/23)x 6.023 x 10²³

=2x 6.023 x 10²³

⇒12.046 x 10 ²³Na particles

∴46 g of Na CONTAINS 12.044 x 10 ²³

HOPE it helps!!!!!

ANSWER:

SCID is DISSOLVED but SOAR in TEST

EXPLANATION:

Answer:

the component which FORMS the 180 DEGREE angle with the object is HORIZONTAL component and the component FORMING 90degree angle or Φ angle is VERTICAL component.