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1 is the correct answer

Am i correct?

option (3) is the right answer

well option 3 is correct

kinetic energy =1/4mv^2potential energy = 1/4mv^2Total energy = 1/2mv^2

option 3 is right answer

option 3 is right answer

c) is the correct answer

1/2mv2 is the answer.....

a)Physical quantity which remains same when some wattage are connected in series :--->Same wattage , so same voltage then same resistance--> Same voltage drop means same voltage drop across the bulbs.hence current, potential drop, resistance and luminosity of bulb remains sameDifferent ---none

b)Same wattage are connected in parallel:Answer would be : same potential drop, current and resistance.Different--none

c) Different wattage are connected in series:If wattage is different with same voltage rating then resistance will be different then potential drop also differs.Only electric current remains same.

d)Different wattage are connected in parallel:If wattage is different with same voltage then the resistance are different too . Current also differs .Luminosity also differs.

potential energyis theenergypossessed by an object because of its position relative to other objects, stresses within itself, its electric charge, or other factors.

Spring Potential Energy

Since the change inPotential energyof an object between two positions is equal to theworkthat must be done to move the object from one point to the other, the calculation of potential energy is equivalent to calculating the work. Since the force required to stretch a spring changes with distance, the calculation of the work involves anintegral.

then the work done to stretch the spring a distance x is

The energy possessed by an object due to its position is called potential energy.The SI,unit of potential energy is joule (J).

Examples of Potential Energy1.A coiled spring.2.Wheels on roller skates before someone skates.3.An archer's bow with the string pulled back.4.A raised weight.5.Water that is behind a dam.6.A snow pack (potential avalanche)7.A quarterback's arm before throwing a pass.8.A stretched rubber band.

where is figure

Yes, thesoundwavefollowsthe samelaws of reflectionas thelight does. ... The incidentsoundwave, thereflected soundwave and the normal at the point of incident, all lie in the same plane. The angle of incidence ofsoundwave and angle ofreflectionofsoundwave to the normal are equal.

Option (b) is correct as:-

In simple harmonic motion when a particle is displaced to a position from its mean position, then its kinetic energy gets converted into potential energy and vice-versa. Hence, total energy of a particle remains constant or the total energy in simple harmonic motion does not depend on displacement x.

a

differentiate the X ,

we get V = -2*10-²πsin(πt)for V to be maximum.. the sin(πt) should be maximum..so it is at π/2 = πt = t = 1/2 = 0.5 sec

option B

Potential energy at x = E1= 1/2Kx^2 x = sqrt(2E1/K)

Potential energy at y = E2= 1/2Ky^2 y = sqrt(2E2/K)

Potential energy at (x + y) = E= 1/2K(x + y)^2 = 1/2K(sqrt(2E1/K) + sqrt(2E2/K)= (E1 + E2)^2

Therefore,Sqrt(E) = E1 + E2

if the Ray comes parallel to the principal axis it will meet at focus with the distance of 'f'only

if the Ray comes parallel to the principal axis it will meet at focus with the distance of 'f'only

if the ray comes parallel to the principal axis it will meet at focus with the distance of f only

a + b + c=[i^ + 2j^ +3k^] + [2i^ + 4j^ + 6k^] + [3i^ +6j^ + 9k^]

= 6i^ + 12j^ + 18k^

In the aspect oflaw, acontractis a legally bindingagreementbetween two or more parties which contains elements of a validlegal agreementwhich isenforceable by law.An agreementis said to be reached when an offer offered by the offeree has been accept by the acceptor as an acceptance.

Angular velocity : The rate of change of angular displacement is called the angular velocity of the particle.Thus, for a given angular velocity ω, the linear velocity v of the particle is directly proportional to the distance of the particle from the centre of the circular path (i.e) for a body in a uniform circular motion, the angular velocity is the same for all points in the body but linear velocity is different for different points of the body.

option A is the answer.it has to be angular speed.

state Ehrenfest theorm

Option A

Theground state energyfor the quantumharmonic oscillatorcan be shown to be the minimumenergyallowed by the uncertainty principle. Substituting gives the minimum value ofenergyallowed. ... Theenergyof thegroundvibrationalstateis often referred to as "zero point vibration"

(2) - 0.50

the answer is AMisconception is that magnetic field lines point from north to south pole. The fact is that they emerge out of North pole and entre into South pole.

Natural resource management refers to the management of natural resources such as land, water, soil, plants and animals, with a particular focus on how management affects the quality of life for both present and future generations.

As referred in the name "natural resources" can't be created by human beings, it should be used judisciouly, we might run out of fuel in next thousand years if we waste natural resources with the same pace. We should conserve our resources, people are totally dependent on this resources. People living in the jungle use woods as their fuel, even their houses are made up of woods. One day because of deforestation those tribes might dissapear.

Ans :- Natural resource management refersto themanagement of natural resourcessuch as land, water, soil, plants and animals, with a particular focus on howmanagementaffects the quality of life for both present and future generations (stewardship).

outward is the right answer

outward is the right answer....

outward is the correct answer

outwards is the correct answer

water, the soap molecule is uniquely oriented which helps to keep the hydrocarbon part outside the water. When the clusters of molecules are formed then hydrophobic tail comes at the interior of the cluster and the ionic end comes at the surface of the cluster and this formation is called micelle. When the soap is in the form of micelles then it has the ability to clean the oily dirt which gets accumulated at the center. These micelles remain as a colloidal solutions. Therefore the dirt from the cloth is easily washed away. The soap solution appears cloudy as it forms a colloidal solution which scatters light.

Yes, aforce can act without an interaction between two objects. when anobjectfalls freely (free fall) that time nointeraction between objectstake place but theforceof gravity and frictionalforce actson it.

example

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pressure increase with the increase in the weight of the object

Suppose a forceFacting on a body causes a displacements. The angle between force and displacement isθ.Then,work done by the force is given byW=F.s=Fs cosθor W=F (s cosθ)Where scosθ is the magnitude of projection of displacement s along the forceF.

(a) The source of energy that is regenerated in nature is known as renewable source of energy.

-Bio-mass, sun, wind etc. are some of the examples of renewable sources of energy.

The source of energy that does not get regenerated in nature is known as non-renewable source of energy.

-Coal, petroleum etc. are some of the examples of non-renewable sources of energy.

(b) Exhaustible sources are those sources of energy, which will get exhausted or disappear after some time years.

-Coal, petroleum, etc. are the exhaustible sources of energy.

Inexhaustible resources of energy are those sources, which will not get exhausted from nature.

-These are unlimited ,for example ,solar energy from sun. Sun is one of the inexhaustible sources of energy.

a) Renewable : The resources which can be renewed or regenerated in nature is known as renewable resources. (e.g. Solar and wind energy, sun, etc.)

Non-renewable : The resources which cannot be renewed and occur over a very long ecological time. (e.g. Minerals and fossil fuels).

b) Exhaustible : The source of energy which will exhaust or dissappear after sometime. (e.g. Coal, petroleum, etc.).

Inexhaustible : The source of energy which will not exhaust from nature and are unlimited source of energy. (e.g. Sun).

Tq guys

Cellorganelles are structures present within a cell that help it toperform its different functions.Example:Plastids, Mitochondria, Endoplasmic reticulum, Vacuole, Ribosomes, and Cilia andFlagella

Cells are the basic unit of life.

The Cell Theory states that:

1) All organisms are made up of one or more cells and the products of those cells.

2) All cells carry out life activities ( require energy, grow, have a limited size).

3) New cells arise only from other living cells by the process of cell division.

THE THREE MAIN COMPONENTS OF ANY PLANT OR ANIMAL CELL ARE:

1. PLASMA MEMBRANE/ CELL MEMBRANE

Structure- a bilipid membraneous layer composed of proteins and carbohydrates. It is fluid like.

Function - the cell membrane separates the cell from its external environment, and is selectively permeable (controls what gets in and out). It protects the cell and provides stability.

Proteins are found embedded within the plasma membrane, with some extending all the way through in order to transport materials.

Carbohydrates are attached to proteins and lipids on the outer lipid layer.

2. CYTOPLASM

Structure - The jelly-like substance composed of mainly water and found between the cell membrane and nucleus. The cytoplasm makes up most of the "body" of a cell and is constantly streaming.

Function - Organelles are found here and substances like salts may be dissolved in the cytoplasm.

3. NUCLEUS

Structure - The largest organelle in the cell. It is dark and round, and is surrounded by a double membrane called the nuclear envelope/membrane. In spots the nuclear envelope fuses to form pores which are selectively permeable. The nucleus contains genetic information (DNA) on special strands called chromosomes.

Function - The nucleus is the "control center" of the cell, for cell metabolism and reproduction.

u=tan(ip)(p is polarising angle)=tan60°=√3

Ifiis polarizing angle andcis critical angle for a medium, taking other medium as air for which refractive index=1, then the two are related via expressiontan i=1/ sinc...........(1)i=tan^−1(1/sinc)

Here c= sin^-1(3/4)

now putting value in the relation we get,

i =tan^-1(1/sin(sin^-1(3/4)))i =tan^-1(4/3)

so the polarising angle is tan^-1(4/3)

0 degree is the right ans

ha thanks

full form of DIM is Dimension

Theairinside a tire which is about toburstis at very high temperature and pressure. Now,whenthe tirebursts airrushesoutand there is a sudden decrease inairpressure and temperature. This is what causes theairto become cooler as the pressure is reduced which causes temperature of theairto reduce as well.