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Time period of a SIMPLE PENDULUM t is equal to 2 Pi square root of L by GTIME period is directly PROPORTIONAL to square root of length time period INCREASES

The BODY POSSESSES a kinetic energy as it is in a LINEAR MOTION

A particle is moving ALONG a circular PATH of RADIUS r, when it makes half a rotation, what is the ratio between its DISPLACEMENT and distance... Physics: A body moves on a QUARTER circle of radius r.

As the product is negative it means there is OPPOSITE CHANGE so, there WOULD be ATTRACTIVE FORCE. (opposite change is attractive in nature)

The DIMENSIONAL formula is DEFINED as the expression of the physical quantity in TERMS of its basic unit with proper dimensions. For EXAMPLE,dimensional force is. F = [M L T-2] It's because the unit of Force is Netwon or kg*m/s2.

Velocity = 72 x 5/18= 20 m/s
ACCELERATION= velocity/ time
= 20/20= 1m/s^2
hope it HELPS!! ♥️

A HORSE goes FORWARD(that is an action)and the cart is being PULLED by him (it's a REACTION)

Because their isn't ANYTHING ELSE in which they can LIVE

Leakage method is one of the most effective and ACCURATE methods used to measure the value of very high resistances.

Principle Used:

In leakage method, main concept used to calculate the value of resistance is the CHARGING and discharging of a capacitor. A BALLISTIC galvanometer is used to measure the amount of charge that the capacitor/condenser discharges.

In a laboratory, below are the list of items REQUIRED in order to measure resistance via leakage method:

• Ballistic galvanometer
• Power supply / accumulator
• Capacitor
• Resistor whose value is to be measured)
• Few connecting wires
• Tapping key & morse key
• Lamp and scale arrangement
• Stop watch

The earth is inclined to 23 and half degree because the God has created some very BEAUTIFULLY if earth would not be tilted then we wouldn't have any Northern and Southern hemisphere difference because the tiltation on the earth MAKES seasonal changes between Northern and the southern hemisphere because while revolving around the sun one PART of the earth gets more heat or LESS heat than the other part and does it results in opposite seasons in both the hemispheres ALSO the tiltation of the earth make tides conducted twice in a day and also is there is a difference between polar radius and equatorial is because in the equatorial areas the sun rays are direct and on the poles sun rays are slanted
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S=Distance
U=Initial Velocity
G=Acceleration DUE to gravity
T=Time Period
S= UT- 1/2GT^2

Stress is defined as force PER unit AREA. It has the same units as pressure, and in fact pressure is one SPECIAL variety of stress. ... For a 3D system, in PLANE stress condition, thestress in the z-direction is zero. Similarly, in plane straincondition, the strain in the z-direction is zero.

Galileo found that the acceleration DUE to gravity (CALLED ``g'') DEPENDS only on the massof the gravitating OBJECT and the distance from it. It does not depend on the mass of the object being PULLED. ... The effects cancel each other out, so the boulder accelerates at the same rate as the marble.

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Equilibrium CONSTANT for a one STEP reaction is EQUAL to the forward rate constant DIVIDED by the reverse rate constant.

the PARTICLE has uniform speed as TIME is increasing and speed is CONSTANT

Yes, the TENNIS BALL can be easier to stop. Though they have same VELOCITY,but the mass of cricket ball is more compared to the tennis ball. ... It iseasier to stop a tennis ball than a cricket ball moving with same speedbecause the force required to stop a moving body is DIRECTLY proportional to its velocity

The bus can OVERTAKE the car when their displacements are same and bus has more velocity.
velocity of bus initially =0=u(bus).
acceleration of bus=1ms^-2.

s=0(t)+1/2(1)t^2...(1)this is equation of DISPLACEMENT of bus whereas initial velocity of car=5m/s and acceleration of car =0 ms^-2.
So equation of displacement of car is s=5(t)+1/2(0)t^2...(2)
equate (1)and(2). we get 5t=1/2t^2 =>10t=t^2=> t=10 seconds . now calculate the displacement from equation(1)=>s=5t=5(10)=50 m. velocity of bus can be CALCULATING the below formula
v=u+at here u=0 m/s and a=1ms^-2. v=0+1(10)=10 m/s. answers for
first part =>50 m.
second part=>10m/s.

The total TIME taken for the MISSILE to hit the GROUND is 20 seconds.

The explanation is in the attachment below↓↓

Hope it HELPS!!

The MAXIMUM SPEED of a car depends on angle of a CURVE

The LENGTH between CENTRE and LENSE

At any VALUE of t, ACCELERATION is 4

APPLICATION of refraction of light is a tool which helps us in understanding the basic concepts about the refraction of light and its application. First of all let us understand the basics of refraction of light and then we will study about application of refraction of light.

Generally refraction of light occurs when the waves travel s from one medium to another medium, with some refractive index and it generally enters other medium at oblique angle. There are various phenomenon’s ASSOCIATED with the refraction. Refraction of light has a major scope in case of optics and in the field of technology. For example, lens uses the basics of refraction of light to form an image of an object for various purposes, such as magnification. The other example is prism which also uses refraction to form a spectrum or band of colors from incident ray of light. In optical illusion and mirage, refraction generally plays a big role.

Various scientific things have been explained with the help of refraction. Day to day phenomenon’s are also explained with the help of refraction. One example which we are most familiar is ‘Twinkling of stars’. This phenomenon is explained in this way. The atmosphere which is blanket of earth actually consists of various layers of varying densities. It is because of change in temperature and pressure. The phenomenon is when the ray o f light enters into the layers of continuously increasing densities they are being refracted because of change in medium. In this COMPLETE process, ray of light follows curve path and hence it reaches to us. But because of the wind and currents, the density of the layer continuously increases and hence in turn the density of each layer goes on changing from layer to layer. And because of this at very small interval of time, the position of the image of start keeps on changing, and hence it ultimately produces the twinkle EFFECT. This is all based on the concepts of refraction.

The same principle can be used to EXPLAIN the apparent sunrise or sunset. The basic concepts of refraction are used to describe the complete process. The other applications of refraction are as follows:

1) Spear fishing, in which spear fisherman use a smart trick to catch the prey. The spear fisherman generally aims at a point below where the fish seems to be. This is because light actually changes its direction from one medium to another of different densities. This change is basically known as refraction.

2) Bending of stick in water. In water, a stick engrossed in water generally appears bent and small when viewed at an angle from above. This is also because the rays of light actually travel from water medium to air medium and hence in bend away from the normal at the surface.

3) A coin appears raised in water. The same explanation exists.

From above discussion we have seen that refraction of light has been used to understand the scientific facts in almost all fields. This is all about application of refraction of light

The FORMULA for KINETIC ENERGY is
K.E=1/2 ×mv×v

- Refraction of Light Aim: To find a relationship between the angles of INCIDENCE and the angles of refraction by obtaining a set of readings for the angles of incidence and refraction as a light RAY passes from air into perspex. Introduction: Refraction is the bending of a wave when it enters a medium where it's speed is different. The refraction of light when it passes from a fast medium to a slow medium bends the light ray toward the normal to the boundary between the two media..
Refraction occurs when a wave passes from one medium to another and is bent; that is, the wave DEVIATES from the straight-line path it would have otherwise followed. For example, light passing through a prism is bent when it enters the prism and again when it leaves the prism. The light is therefore refracted. Light striking a MIRROR bounces off the silver backing without entering it. The light is therefore reflected. The boundary between the media does not have to be abrupt for reflection or refraction to OCCUR. On a hot day, the air over the surface of an asphalt road is warmer than the air above it. Because light travels at different speeds in these two regions, we see an image that shimmers because its light waves are refracted......

Hey mate here is ur answer :-) :-)
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Physical independence of force means first law of newton.....


force (F) acted by a body of MASS (M) , there is an equal and opposite force (F) EXPERIENCED by mass (M).

firstly , we will understand what is force ?

Answer :- A push or pull applied on a object that change the state of the object is called force.

example :- when we push a moving BALL, it gradually slows down and comes to rest due to force of friction. (frictional force).

now , what is physical independence of force ?

Answer :- Newton's first law states that “if a body is at rest ,it remains in rest and if it is in uniform MOTION then it will continue its uniform motion untill an external force is applied on it”
So according to Newton's first law - “Force is an external factor which can change the state of rest or state of uniform motion of an object”.

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:-) :-) :-) :-) :-) :-)

Unit the power of lenses is rated in 'Dioptre'

FOCAL LENGTH of the convex lens = 50 CM = 0.5 m

Power of lens = 1/focal length (in metres)

= 1/0.5 = 2 dioptre

Thus, the power of lens of focal length 50 cm is 2 Dioptre.

Hope it helps!!

Explanation:

let mass of liquid and WATER be x GM .

density of water = 1 gcm

−3

Relative density =

ρ

(

water)

ρ

(

liquid)

= 2

so density of liquid = 2 gcm

−3

Volume of water =

1

x

cc = x CM

3

Volume of liquid =

2

x

cm

3

hence total volume =

2

3x

total mass x + x = 2x

hence density of mixture = 3x×.5

2x

=

3

4

The energy STORED in a BODY, when strained within ELASTIC limit is known as strain energy. The maximum strain energy which can be stored in a body is termed as PROOF RESILIENCE.