Explore topic-wise InterviewSolutions in Current Affairs.

Explanation:

Yep, just as we can make magnets from electricity, we can also USE magnets to make electricity. ... If you move a MAGNET quickly through a coil of copper WIRE, the ELECTRONS will move - this produces electricity.

• The OPTIC NERVE is a bundle of nerve FIBERS that serves as the communication CABLE between your eyes and your brain.

ANSWER:

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Explanation:

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• VITREOUS performs a vital role in protecting your EYE. Most IMPORTANTLY, it helps it to hold its 'spherical' SHAPE. The vitreous also comes in contact with the retina (the light-sensitive tissue at the back of the eye that acts like the film of a camera).

Answer:

Advantage of thermal expansion of SOLID - example

(1) If we find it DIFFICULT to remove the stopper from a GLASS bottle, we can heat the neck of the bottle. ... (2) The principle of thermal expansion is used in FIXING iron rim with the wooden wheel firmly. (3) Rivets are used to hold STEEL plates together very tightly.

Explanation:

thank you...

ANSWER:

कृषि में सकल स्थिर पूंजीगत निर्माण 2013-14 में सकल मूल्य संवर्धन (जीवीए) के 17.7% से गिरकर 2017-18 में जीवीए का 15.2% हो गया। जीवीए में कृषि का योगदान 2014-15 में 18.2% से गिरकर 2019-20 में 16.5% हो गया। ... भारत में कृषि क्षेत्र में मशीनीकरण अपेक्षाकृत कम है, जिसे लक्षित किए जाने की जरूरत है।

• Aqueous HUMOR is the clear liquid INSIDE the front part of the eye. It NOURISHES the eye and keeps it inflated. The eye constantly PRODUCES a small amount of aqueous humor while an equal amount flows out through the trabecular meshwork in the drainage angle.

EXPLANATION:

• SPEED = 72km/h
• Speed in m/s = 72×5/18 = 20m/s
• correct ANSWER is OPTION (A)

Given :

Mass of the body = 5kg

Acceleration = 2m/s²

Distance covered = 100m

To find :

The work DONE by the force

Solution :

We KNOW that work done is product of froce and distance.

So, firstly let's find force applied on the body

USING Newton's second law of motion that is The RATE of change of momentum of a body is directly proportional to the applied force and takes PLACE in the direction in which force acts.

F = ma

here, F denotes force, m denotes mass and a denotes acceleration.

by substituting all the given values in the formula,

➝ F = ma

➝ F = (5)(2)

➝ F = 10 N

Now, using work done formula .i.e.,

W = F × d

where, F denotes force and d denotes distance covered

by substituting the value in the formula,

➝ W = F × d

➝ W = 10 × 100

➝ W = 1000 J

Thus, work done by the force is 1000 Joules.

Remember !

SI unit of force is Newton

SI unit of work done is joules

EXPLANATION:

Monochromatic light is light (optical radiation) where the optical spectrum contains only a single optical frequency. The associated ELECTRIC FIELD strength at a CERTAIN point in space.

HOPE it HELPS you.

answer is in the above picture.

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Answer:

A good quiz-master is SOMEONE who the quiz-participants will listen to and RESPECT.

...

Knowledge and skills NEEDED to be a good quiz-master include:

1. Public speaking.
2. Using a microphone.
3. Group facilitation / crowd control.
4. Quick-thinking.
5. Teamwork / team-leadership.
6. Event PLANNING and management.

Answer:

The SCALAR or DOT product of two vectors is defined as the product of magnitudes of the two vectors and the cosine of the ANGLES between them. Characteristics of the Scalar Product: The scalar product of two vectors is ALWAYS a pure number i.e. the scalar product is always a scalar.

Answer:

The presence of matter modifies the ELECTRIC field because

even though the material is usually charge neutral, the field

within the material can cause charge motion, called conduc-

tion, or small charge displacements, called polarization.

Because of the large number of atoms present, 6.02 x 1023 per

gram molecular weight (Avogadro's number), slight

imbalances in the distribution have large effects on the fields

inside and outside the materials. We must then self-

consistently solve for the electric field with its EFFECT on charge

motion and redistribution in materials, with the charges.

resultant effect back as another source of electric field.

3-1 POLARIZATION

In many electrically insulating materials, called dielectrics,

electrons are TIGHTLY bound to the nucleus. They are not

mobile, but if an electric field is applied, the negative cloud of

electrons can be slightly displaced from the positive nucleus,

as illustrated in Figure 3-la. The material is then said to have

an electronic polarization. Orientational polarizability as in

Figure 3-lb occurs in polar molecules that do not share their

No field Electric field E

-0--.

-O- l-q

_E :F =qE

\ d Torque= d x qE

=p x E

F = -qE

p = qd

Electronic polarization Orientation and ionic polarization

(a) (b)

Figure 3-1 An electric dipole consists of two charges of equal magnitude but opposite

sign, separated by a small vector distance d. (a) Electronic polarization arises when the

average motion of the electron cloud about its nucleus is slightly displaced. (b) Orien-

tation polarization arises when an asymmetric polar molecule tends to line up with an

applied electric field. If the spacing d ALSO changes, the molecule has ionic polarization.

electrons symmetrically so that the net positive and negative

charges are separated. An applied electric field then exerts a

torque on the molecule that tends to align it with the field.

The ions in a molecule can also undergo slight relative dis-

placements that gives rise to ionic polarizability.

The slightly separated charges for these cases form electric

dipoles. Dielectric materials have a distribution of such

dipoles. Even though these materials are charge neutral

because each dipole contains an equal amount of positive and

negative charges, a net charge can accumulate in a region if

there is a local imbalance of positive or negative dipole ends.

The net polarization charge in such a region is also a source

of the electric field in addition to any other free charges.

3-1-1 The Electric Dipole

The simplest rpodel of an electric dipole, shown in Figure

3-2a, has a positive and negative charge of equal magnitude q

separated by a small vector displacement d directed from the

negative to positive charge along the z axis. The electric

potential is easily found at any point P as the superposition of

potentials from each point charge alone:

V= q - _ (1)

The general potential and

41reor+

electric

4r8or-

field distribution for any

displacement d can be easily obtained from the geometry

relating the distances r, and r- to the spherical coordinates r

and 0. By symmetry, these distances are independent of the

angle 4. However, in dielectric materials the separation

between charges are of atomic dimensions and so are very

small compared to distances of interest far from the dipole.

So, with r, and r- much greater than the dipole spacing d, we

approximate them as

d

r~r---cos8

2

Then the potential of (1) is approximately

V qdcos0 p-i

41reor 4reor

where the vector p is called the dipole moment and is defined

as

p = qd (coul-m) (4)

The potential at any point P due to the electric dipole is equal to the

sum of potentials of each charge alone. (b) The equi-potential (dashed) and field lines

(solid) for a point electric dipole calibrated for 4vreo/p = 100.

Because the separation of atomic charges is on the order of

1 A(10 10 m) with a charge magnitude equal to an integer

multiple of the electron charge (q = 1.6 X 10-19 coul), it is

convenient to express dipole moments in units of debyes

defined as I debye = 3.33 X 1030 coul-m so that dipole

The COMPASS needle is a small magnet. That's why when a compass needle is brought near a bar magnet, its magnetic field LINES interact with that of the bar magnet. Hence, a compass needle GETS DEFLECTED near the magnet bar.

I hope it help you...

Answer:

The SI unit of specific heat is joule per KELVIN and kilogram, J/(K kg). ... For EXAMPLE, at a temperature of 25 °C the heat required to raise the temperature of 1 kg of water by 1 K is 4179. 6 JOULES so the specific heat capacity of water is 4179. 6 J·kg−1·K−1.

Since we know f=ma
and NET force acting in this CASE is (16N-12N)= 4N
4=8*a
a=4/8=0.5 metre per second square
magnitude of acceleration is 0.5 metre per second square
and the direction in which the force of 16N was applied is the direction of the acceleration.

ANSWER:

it can be in any DIRECTION

Answer:

The answer is 1

The product of FREQUENCY and the time PERIOD is equal to 1

HOPE IT HELPS

STAY SMILING

Answer:

3c6

Explanation:

the FIRST THING about the H the FOLLOWING is CALLED that the first

M = 55kg
t = 1 MINUTE = 60 sec
g = 10 m/s^2
h = 25 cm = 0.25 m ( 1m = 100cm )

Power= Work / time
= Fs / t
= MGH / t ( F=ma=mg , s=h )
= 55 * 10 * 0.25 * 15 / 60 ( 15 is multiply because the action is done 15 times )
= 34.3 watt

Therefore , the total power developed is 34.3 watt

____Welcome____

ANSWER:

HOPE it HELPS UH MATE. . .. . . . .

• The CORNEA is the CLEAR OUTER layer at the front of the eye. The cornea HELPS your eye to focus light so you can see clearly.

Answer:

36

Explanation:

PERIMETER is the ACTION that can MAKE the WORLD was a LITTLE more

Answer:

answer

Explanation:

In fact, a CAR accelerates whenever its velocity is changed by either changing the SPEED or the direction of the car's MOTION. So, even if you are driving your car at a constant speed while turning around a CORNER, you are still accelerating.

ANSWER:

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Answer:

= 3000 N

Explanation:

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Answer:

Earth TAKES 365 days to travel one COMPLETE orbit, while Mercury takes 88 days and Venus takes 224 days, so the time between alignments will require each planet to make a WHOLE number of orbits AROUND the sun and RETURN to the pattern you see in the figure above.

खगोलीय इकाई (AU या au या a.u. या यद कदा ua) लम्बाई की इकाई है, जो लगभग 150 मिलियन किलोमीटर है और पृथ्वी से सूर्य की दूरी पर आधारित है। इसकी सही सही मान है 149,597,870,691 ± 30 मीटर (लगभग 150 मिलियन किलोमीटर या 93 मिलियन मील

• The COLORED TISSUE at the front of the eye that contains the pupil in the center. The IRIS helps control the size of the pupil to let more or less light into the eye.

Answer:

what's ur weight EXPLAIN in COMMENT box

• The retina contains MILLIONS of light-sensitive cells (rods and CONES) and other nerve cells that receive and ORGANIZE VISUAL information. Your retina SENDS this information to your brain through your optic nerve, enabling you to see.

ANSWER:

I THINK it's 95, but I'm SORRY i'm not GOOD at this...

ANSWER:

RUSSIA is the LARGEST PRODUCER of DIAMOND

Answer:

Faraday's LAW states that a current will be INDUCED in a conductor which is EXPOSED to a changing MAGNETIC field.

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Explanation:

QUESTION

How can make a favicol in factory?

ANSWER

Fevicol branded glue is a white ADHESIVE (the company brochures mention poly-synthetic RESIN). It appears as a white glue (liquid). CHEMICALLY we can synthesize it by HEATING formaldehyde and UREA together.

• The ciliary body is a circular structure that is an EXTENSION of the iris, the COLORED part of the EYE. ... It also contains the ciliary muscle, which changes the shape of the LENS when your eyes focus on a near object. This process is called ACCOMMODATION.

ANSWER:

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ANSWER:

magnus affect is the magnetic forrrce of ELECTROMAGNETIC FORCE

ANSWER:

MOMENTUM = MASS X velocity

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Answer:

Taramati was a dancer and singer PAR excellence and devoted her entire LIFE to her art. She USED to ENTERTAIN people at the Taramati Baradari. A legend says that Taramati continued dancing even when Emperor AURANGZEB had asked her to stop.

Explanation:

the main THING in this QUESTION is that the kinetic energy of the block is COMPLETELY CONVERTED into the POTENTIAL energy of the block that's the main thing

Answer:

The gravitational FORCE between two objects is INVERSELY proportional to the square of DISTANCE between them.

So, if the distance between two objects is doubled, then the gravitational force BECOMES .

That is,

Therefore, if the distance between two MASSES be doubled, then the force between will becomes 1/4.

• In optics, the REFRACTIVE index of a material is a dimensionless NUMBER that DESCRIBES how FAST light travels through the material. It is defined as n={\frac {c}{v}}, where c is the speed of light in vacuum and v is the phase velocity of light in the medium.

EXPLANATION:

Newton's first LAW states that a body stays at rest if it is at rest and moves with a constant VELOCITY unit if a net force is applied on it. Newton's second law states that the net force applied on the body is equal to the rate of CHANGE in its momentum.

F = ma

or F = m(v-u) / t

or Ft = mv - mu

That is, when F = 0, v = u for whatever TIME, t is taken. This means that the object will continue moving with uniform velocity, u throughout the time, t. If u is zero than v will also be zero, i.e., object will remain at rest.

EXPLANATION:

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ANSWER:

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• DIMINISHED IMAGE's size is smaller than the size of the object, WHEREAS the size of a magnified image is larger than the object. ... The diminished image is USUALLY formed in front of the mirror and the magnified image is usually formed behind the mirror.

Answer:

Comecting or reshaping a PHYSICAL QUANTITY with LEAST deviation from its original

value after dropping the LAST digits which are not required is called ROUNDING off

Compune the following with regarding significant figures:

65.32+4.0003

Explanation:

Comecting or reshaping a physical quantity with least deviation from its original

value after dropping the last digits which are not required is called rounding off

Compune the following with regarding significant figures:

65.32+4.0003

A convection current is a PROCESS that involves the movement of energy from one place to ANOTHER. It is also called convection HEAT transfer. ... The convection currents tend to MOVE a fluid or gas PARTICLES from one place to another.

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The distance between the convex lens or a concave mirror and the focal point of a lens or mirror is called the focal length. It is the point where PARALLEL rays of light meet or converge. The focal length VARIES with the sign (POSITIVE or negative) depending upon the NATURE of the lens and mirror(concave or convex).