Explore topic-wise InterviewSolutions in Current Affairs.

ANSWER:

vvvv

Explanation:

gggjhhhhhhhhhhhhhhhbbbhhhhhh

★☆〖Qบęຮτ ı¨ ø nˇ〗☆★

⭐The Dual Nature of Matter⭐

=> de-Broglie's Principle states that "All material PARTICLES in motion possess wave characteristics..."

=> de-Broglie's Relationship can be derived by combining the MASS and energy relationships PROPOSED by Max Planck, and Albert Einstein...

E = ∫c²dm = Σc²Δm = mc²

E = hν

=> The combination of these two yielded the desired result:

λ = h/mc

=> The above equation is VALID for a Photon(γ⁰)

=> The same relation can be extended to every particle of this universe, if the speed of light in vacua(c) is REPLACED by the ordinary velocity of the particle:

____________________________________

________________

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Hope it helps you! ヅ

✪ Be Brainly ✪

ANSWER:

we KNOW that 1kg= 1000G

so 1kgm³= 1000gm³

and 1m³= 1000000cm³

so 1kgm³=10⁹cm³

hope you understand PLEASE LIKE me

VELOCITY = DISTANCE / TIME

= 40/2

velocity = 20m/s ANSWER

POTENTIAL ENERGY = MASS × GRAVITY × HEIGHT

ANSWER:

☆If the angle between the INCIDENT ray and MIRROR is 40°.The the angle of incidence will be 50°.

☆Fingers apper blured DUE to persistence of vision.

Answer:

Each nephron CONSISTS of a BALL formed of small BLOOD capillaries, called a glomerulus, and a small tube called a renal tubule. UREA, together with water and other waste substances, forms the urine as it passes through the nephrons and down the renal tubules of the kidney.

ANSWER:

what is this

EXPLANATION:

I don't UNDERSTAND this QUESTION

Answer:

I Ray = reflected Ray so 40

2) our eyes capture as a image over 3000 images are captured to form a maving object thus the over shaking may RESULT slow process

3) the image formed in a plane image APPEARS at the equal distance from the mirror

Its right appear to be at left and visa versa it show ONE side closed and opens up the mirroring this known as I side closed mirror

4) I don't remember this CAUSE I suddided it in 8th class

7)

Answer:

Banking of roads : To avoid risk of skidding as well as to reduce the wear and tear of the car tyres, the road surface at a bend is tilted inwards, i.e., the outer SIDE of road is raised above its inner side. This is called 'banking of roads'.

Consider a car taking a left turn along a road of RADIUS r banked at an angle θ for a designed optimum speed V. Let m be the mass of the car. In general, the forces ACTING on the car are:

(a) Its weight

mg

, acting vertically down

(b) The normal reaction of the road

N

, perpendicular to the road surface

(c) The frictional force

f

s

along the inclined surface of the road.

Resolve

N

and

f

s

into two perpendicular components Ncosθ vertically up and

f

s

sinθ vertically down, Nsinθ and

f

s

cosθ HORIZONTALLY towards the centre of the circular path.

If v

max

is the maximum safe speed without skidding.

r

mv

max

2

=Nsinθ+f

s

cosθ

=Nsinθ+μ

s

Ncosθ

r

mv

max

2

=N(sinθ+μ

s

cosθ)....(1)

and

Ncosθ=mg+f

s

sinθ

=mg+μ

s

Nsinθ

∴mg=N(cosθ−μ

s

sinθ)...(2)

Dividing eq. (1) by eq. (2),

r.mg

mv

max

2

=

N(cosθ−μ

s

sinθ)

N(sinθ+μ

s

cosθ)

∴

rg

v

max

2

=

cosθ−μ

s

sinθ

sinθ+μ

s

cosθ

=

1−μ

s

tanθ

tanθ+μ

s

∴v

max

=

1−μ

s

tanθ

rg(tanθ+μ

s

)

...,.(3)

This is the expression for the maximum safe speed on a banked road.

At the optimum speed, the friction between the car tyres and the road surface is not called into play. Hence, by setting μ

s

=0 in eq. (3), the optimum speed on a banked circular road is

v=

rgtanθ

...(4)

∴tanθ=

rg

v

2

or θ=tan

−1

(

rg

v

2

)

From this eq. we see that θ depends upon v,r and g. The angle of banking is independent of the mass of a vehicle negotiating the curve.

solution

Answer:

Explanation:

One of the most IMPORTANT things we can do with heat is to USE it to do work for us. A heat engine does exactly this—it makes use of the properties of thermodynamics to transform heat into work. GASOLINE and diesel engines, jet engines, and steam turbines that generate ELECTRICITY are all examples of heat engines.

TWO BLOCKS are CONNECTED by a STRING the TENSION = ?

Answer:

RADIUS of curvature is the radius of the circle which touches the curve at a GIVEN point and has the same tangent and curvature at that point (the circle is drawn for use only, just to determine the VALUE, a curve has INFINITE Radius of curvature for infinite point(x, y)

Radius is the distance between the centre and any other point on the circumference of circle or surface of sphere. In circles you MUST use the term radius.

EXPLANATION:

sjsnennwnwnwjwjwkwkwkwkwkwow

ANSWER:

WAT is QUESTION

PLEASE TELL me

Explanation:

the value 1.33 REPRESENTS the refractive INDEX of water with RESPECT to the air when light enters from air to water.

And 2.41 represents the refractive index of diamond with respect to the air when light enters from air to diamond.

HAPPY BLACK day

Explanation:

JIYA jaye na SONG is BEST

Answer:

1. The BIG Bang itself expanded much faster than the SPEED of light. But this only means that "nothing can go faster than light." Since nothing is just empty space or vacuum, it can EXPAND faster than light speed since no MATERIAL object is breaking the light BARRIER.

ANSWER:

PAR BHAI KYA he QUESTION?...

Answer:

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In this question I am going to USE a scale of 1:5 to DRAW this diagram.

When I use this scale:

Focal length =20/5=4cm

Object HEIGHT =4/5=0.8cm

The object distance =30/5 =6cm.

From the diagram, the image height is 1.6cm.

Which from the scale is : 1.6 × 5=8cm

The ratio of image SIZE to object size is : 8:4=2:1

The ratio= 2:1

Given :

In concave mirror,

MAGNIFICATION of image = -2

Object distance = - 20cm

To find :

The focal length of the mirror

Solution :

Firstly we have to find image distance using magnification formula that is,

The Magnification produced by a mirror is equal to the ratio of the image distance to the object distance with a minus sign .i.e.,

where,

• v denotes image distance
• u denotes object distance

by, SUBSTITUTING all the given VALUES in the formula,

Now, using mirror formula that is,

» A formula which GIVES the relationship between image distance, object distance and focal length of a sperical mirror is known as the mirror formula .i.e.,

where,

• v denotes Image distance
• u denotes object distance
• f denotes focal length

now, substituting all the given values,

Thus, the focal length of the mirror is 13.3cm

We are able to see because light from an object can move through space and REACH our eyes. Once light reaches our eyes, signals are SENT to our BRAIN, and our brain deciphers the information in order to detect the appearance, location and MOVEMENT of the objects we are SIGHTING at.

Answer:

The wave FUNCTION is given by y(x,t)=Asin(kx−ωt+φ) y ( x , t ) = A sin ( k x − ω t + φ ) where k=2π/λ k = 2 π / λ is defined as the wave number, ω=2π/T ω = 2 π / T is the angular FREQUENCY, and φ is the phase SHIFT.

ANSWER:

it is clear that for 10C increase in TEMPERATURE , VELOCITY increases by 0.61 m/s.

ANSWER:

The dimensional formula of force and charge is [M1 L1 T-2] and [I1 T1] respectively. Therefore, the Capacitance is DIMENSIONALLY REPRESENTED as [M-1 L-2 T4 I2].

ANSWER:

(3) N = 4 → n=1. कि पाश्चन की पहली रेखा उत्सर्जित हो :- (1) 2.55

Answer:

take a thread and PLAVE it AROUND the curve then MEASURE the distance of thread with SCALE

Answer:

The shape of the path covered by a moving object having UNIFORM SPEED and uniform VELOCITY will be a straight LINE. This is because a body has uniform velocity only if it travels in a straight line and moves over equal distances in equal interval of time, no matter how small the time intervals maybe

Explanation:

what happened xD i don't KNOW XD

The Velocity of light in a vacuum is a UNIVERSAL CONSTANT, independent of the FRAME of REFERENCE.  So the velocity of light will be observed as c.

Answer:

Explanation:

As the role of the teacher is to educate and guide the students to grow as an INDIVIDUAL, so is it with the community. The community has a duty to educate and guide the people in it. In fact, communities need to have some guidelines for their development in terms of economic growth, infrastructure development, social awareness and human resource development. A good community is always a sign of good education at all levels.

What is the role of a teacher in the education system:

A teacher is a key member of the education system. Without a good teacher, there can be no good education. The role of a teacher in the education system can be compared to that of a facilitator. It is important for teachers to help students learn by making sure that they have the necessary RESOURCES and environment to do so. Teachers should also make sure that they are AVAILABLE when students need them and should always strive to teach them better so that they are able to succeed in life. Teachers should also be role models for their students by setting an example for them through their behaviour and work ethics.

What is the role of a teacher in society:

A teacher has a lot of responsibilities in society. The biggest responsibility of any educator is to educate people about how they can help build their community, country and world into better places for all its inhabitants, not just themselves or their family members. The role of teachers as citizens includes participating in debates about important issues AFFECTING communities, contributing ideas about ways to solve problems and making sure that children get enough information on how they can become responsible citizens too one day when they grow up. Teachers also need to educate themselves on issues that may affect them or their students as well as other community members such as discrimination, violence and prejudice against others who may be different from themselves because this will help them understand what their responsibilities are as educators and leaders who will play an important part in SHAPING future generations into better citizens than themselves.

ANSWER:

the TEMPERATURE of WATER be CHANGE

Explanation:

Distance in 20 seconds

s=0∗20+a×20

2

/2

s=200a --(1)

distance travels in first 10 seconds

s

1

=0×10+a×102/2s1

=50a --(2)

distance travels in NEXT 10 seconds

s

2

=s−s1s2

=200a−50a=150a--(3)

s

1

s

2

=

50a

150a

=3

ANSWER:

किसी चालक को किसी परिवर्ती चुम्बकीय क्षेत्र में रखने पर उस चालक के सिरों के बीच विद्युतवाहक बल उत्पन्न होने को विद्युत्-चुम्बकीय प्रेरण (ELECTROMAGNETIC INDUCTION) कहते हैं।

EXPLANATION:

energy level requires the absorption of light at a frequency of 7.32×1011kHz, what is the energy of the second energy level? Give your ANSWER in eV, correct to three significant figures and without a UNIT.

ANSWER:

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Answer:

Given Final VELOCITY (v) = 50 m/s

Given Final velocity (v) = 50 m/s INITIAL velocity (u) = 30 m/s

Given Final velocity (v) = 50 m/s Initial velocity (u) = 30 m/s Acceleration (a) = 2.5 m/s

Given Final velocity (v) = 50 m/s Initial velocity (u) = 30 m/s Acceleration (a) = 2.5 m/s

Given Final velocity (v) = 50 m/s Initial velocity (u) = 30 m/s Acceleration (a) = 2.5 m/s We KNOW v = u + at

Given Final velocity (v) = 50 m/s Initial velocity (u) = 30 m/s Acceleration (a) = 2.5 m/s We know v = u + at∴ 50 = 30 + 2.5 t

Given Final velocity (v) = 50 m/s Initial velocity (u) = 30 m/s Acceleration (a) = 2.5 m/s We know v = u + at∴ 50 = 30 + 2.5 t⇒ 50 - 30 = 2.5 t

Given Final velocity (v) = 50 m/s Initial velocity (u) = 30 m/s Acceleration (a) = 2.5 m/s We know v = u + at∴ 50 = 30 + 2.5 t⇒ 50 - 30 = 2.5 t⇒

Given Final velocity (v) = 50 m/s Initial velocity (u) = 30 m/s Acceleration (a) = 2.5 m/s We know v = u + at∴ 50 = 30 + 2.5 t⇒ 50 - 30 = 2.5 t⇒ 2.5

Given Final velocity (v) = 50 m/s Initial velocity (u) = 30 m/s Acceleration (a) = 2.5 m/s We know v = u + at∴ 50 = 30 + 2.5 t⇒ 50 - 30 = 2.5 t⇒ 2.520

Given Final velocity (v) = 50 m/s Initial velocity (u) = 30 m/s Acceleration (a) = 2.5 m/s We know v = u + at∴ 50 = 30 + 2.5 t⇒ 50 - 30 = 2.5 t⇒ 2.520

Given Final velocity (v) = 50 m/s Initial velocity (u) = 30 m/s Acceleration (a) = 2.5 m/s We know v = u + at∴ 50 = 30 + 2.5 t⇒ 50 - 30 = 2.5 t⇒ 2.520 = t or 8 = t

Given Final velocity (v) = 50 m/s Initial velocity (u) = 30 m/s Acceleration (a) = 2.5 m/s We know v = u + at∴ 50 = 30 + 2.5 t⇒ 50 - 30 = 2.5 t⇒ 2.520 = t or 8 = t∴ Time TAKEN to ACCELERATE = 8 seconds

In a collision, the velocity change is ALWAYS COMPUTED by subtracting the initial velocity VALUE from the final velocity value. If an object is moving in ONE DIRECTION before a collision and rebounds or somehow changes direction, then its velocity after the collision has the opposite direction as before.

ANSWER:

the GRAVITATIONAL FORCE of ATTRACTION

Answer:

Hungarian authors have long been discussing the role of earthworms in improving soil productivity. Earthworm counts in our higher quality soils are similar to those found in soils where more ATTENTION is PAID to earthworm activity. Negative impacts that are independent of farming—such as sustained dry spells in the summer—also affect earthworm counts. Negative impacts that DEFINITELY depend on farming include land use causing soil moisture loss, deep stubble treatment leaving the soil without cover, and ploughing in the summer without subsequent pressing. The climate change is having both positive and negative impacts. Weather patterns are causing losses but adopting climate mitigating tillage are generating benefits. In the trials results so far show that tillage focusing on PRESERVING soil moisture, structure, and organic materials, COVERING the surface in the critical months as well as adequate soil loosening are fundamental pre-requisites for making the soil a favourable habitat for earthworms.

Answer:

Photosynthesis is the PROCESS by which plants PREPARE FOOD with the helps of sunlight, air, water and chlorophyll

ANSWER:

bhai ff KHELTE ho meri UID

1999004889 challenge me if u are brave.

Answer:

EXPLANATION:

Summation- SUM of a SMALL numbers of LARGE quantities.

Integration- Sum of a large numbers of small quantities.

The SLIT WIDTHS are in the RATIO of 2:1

Answer:

The main reason for organizations to use SYSTEM integration is their need to improve productivity and quality of their OPERATIONS. The goal is to get the organizations various IT systems to “TALK to each other” through the integration, to SPEED up information flows and reduce operational costs for the ORGANIZATION

Answer:

4 m/s²

Explanation:

Ɡiven F=100N

m= 25kɡ

a=?

USE EQUATION F=ma

100= 25a

a = 100/25

= 4 m/s²

Answer:

1. Identity

2.Roles

Explanation:

SANA makatulong

Answer:

Stress is the force acting on the unit area of a material. The effect of stress on a body is named as strain. Stress can deform the body. ... Stress can be categorized into three categories depending upon the direction of the deforming forces acting on the body.Types of Stress

There are several types of stress in physics but it is mainly categorized into two forms that are NORMAL Stress and Tangential or Shearing Stress. Some stress types are discussed in the points below.

Normal Stress:

As the name suggests, Stress is said to be Normal stress when the direction of the deforming force is perpendicular to the cross-sectional area of the body. The length of the wire or the volume of the body CHANGES stress will be at normal. Normal stress can be further classified into two types based on the dimension of force-

Longitudinal stress

Bulk Stress or Volumetric stress

Longitudinal Stress:

Consider a cylinder. When two cross-sectional areas of the cylinder are subjected to equal and opposite forces the stress experienced by the cylinder is called longitudinal stress.

Longitudinal Stress = Deforming Force / Area of cross-section = F/A

As the name suggests, when the body is under longitudinal stress-

The deforming force will be acting ALONG the length of the body.

Longitudinal stress results in the change in the length of the body. Hence, thereby it affects slight change in diameter.

The Longitudinal Stress either stretches the object or compresses the object along its length. Thus, it can be further classified into two types based on the direction of deforming force-

Tensile stress

Compressive stress

Tensile Stress

If the deforming force or applied force results in the increase in the object’s length then the resulting stress is termed as tensile stress. For example: When a rod or wire is stretched by pulling it with equal and opposite forces (outwards) at both ends.

Compressive Stress

If the deforming force or applied force results in the decrease in the object’s length then the resulting stress is termed as compressive stress. For example: When a rod or wire is compressed/squeezed by pushing it with equal and opposite forces (inwards) at both ends.

Bulk Stress or Volume Stress

When the deforming force or applied force acts from all dimensions resulting in the change of volume of the object then such stress in called volumetric stress or Bulk stress. In short, when the volume of body changes due to the deforming force it is termed as Volume stress.

Shearing Stress or Tangential Stress

When the direction of the deforming force or external force is parallel to the cross-sectional area, the stress experienced by the object is called shearing stress or tangential stress. This results in the change in the shape of the body.

According to the strain definition, it is defined as the amount of deformation experienced by the body in the direction of force applied, divided by initial dimensions of the body. The relation for deformation in terms of length of a solid is given below.

ϵ=δlL

where,

ϵ is the strain due to stress applied

δl is the change in length

L is the original length of the material.

The strain is a dimensionless quantity as it just defines the relative change in shape.

Depending on stress application, strain experienced in a body can be of two types. They are:

● Tensile Strain: It is the change in length (or area) of a body due to the application of tensile stress.

● Compressive Strain: It is the change in length (or area) of a body due to the application of compressive strain

When we study solids and their mechanical properties, information regarding their elastic properties is most important. These can be obtained by studying the stress-strain RELATIONSHIPS, under different loads, in these materials.

hope this answer is helpful for you .

RATE of doing work is DIRECTLY PROPORTIONAL to time TAKEN to do the work.

This one's probably about moments. If would be HELPFUL to draw a DIAGRAM to visualize the respective forces acting on the rod. (so you would have BALANCES C and D at each end of the rod, exerting an upward force on the rod. The weight of the rod exerts a downward force on the middle of the rod)

To examine the reading on each BALANCE, take the other balance as a pivot.

Moment = Force x Distance from pivot

For example, if we want to find the reading on Balance D, Balance C is the pivot. 2 forces are acting on the rod - it's weight, and the upward countering force exerted by Balance D. Since the rod is assumed to be in equilibrium,

the moments exerted by both forces are the same:

Weight x Distance from pivot = Balance D x Distance from pivot

The distances from the pivot of the respective forces should be easy to CALCULATE with a diagram.

Then repeat the same with balance D