Explore topic-wise InterviewSolutions in Current Affairs.

This two QUESTIONS come under same concept that's friction
Friction is the force RESISTING the relative motion of body
a)bcz glass surface is so smooth that there is no friction n make it reverse here
b)As WITHOUT these rubber sheet the SOFT METAL doesnot provide friction in normal words grip so it is covered by rubber sheet

It is pottasium
electronic CONFIGURATION is 2,8,8,1
so it has 1 valence electron
It can EASILY loose electrons
It is THEREFORE alkali metal
Highly reactive
low ionisation POTENTIAL

The CAPACITY of doing work is CALLED energy. The SI UNIT of energy is Joule. MARK ME AS BRAINLIEST

S=it + 1/2at^2
=0+1/2×2×4
=4m

You can SEE your ANSWER

T1/t2=√(L1/l2)
t1/t2=√(G1/G2)

No GOOD manners are not WASTE of time..!
It is a WAY to RESPECT others.
If you don't have Good manners you have nothing.

Its has valancy in ratio of 3/6 or 1/2 by CRORE MULTIPLICATION between XAND Y. arw X2Y

9 is 1s2 2s2 2p5 hence it belongs to P BLOCK SIMILARLY 37 is (KR)4s1 it from s block 46 is (kr)4d10 5s0 its from d block and 64 is belongs from lanthenoid

Answer:

EXPLANATION

EFFICIENCY=(VELOCITY ratio/Mechanical advantage)*100%

ANSWER:

EXPLANATION:

ATTACHMENT for REFERENCE

I KG of WEIGHT = 9.8N

Two ELEMENTS which have SIMILAR properties like Mg are CALCIUM ,beryllium ,strontium, barium and radium (all elements in GROUP 2) the basis is that they have similar valence electrons i.e. 2

9.8596 this the ANSWER for π^2
follow me and MARK BRAINIEST

ANSWER:

PLZ FOLLOW me I follow BACK you

Any BODY in UNIFORM CIRCULAR MOTION

Because atomic NUMBER is more FUNDAMENTAL than mass number
properties of elements are more SORTED in atomic number elements can be arranged into periods and groups more easily

I) As we GO down a group metallic character increases.
ii) Metallic character decreases from left to RIGHT ACROSS a period.

Equate QVB to mv^2/r to GET expression of r and PUT VALUES

vApplication 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

Any electron that is not attached to an ion, ATOM, or molecule and is FREE to MOVE under the influence of an APPLIED electric or magnetic field.

☺❤☺❤☺HEY MATE YOUR ANSWER IS HERE. ....☺❤☺❤☺

Is is a general misconception that friction always opposes motion between two bodies in CONTACT ,but actually it opposes relative motion between two bodies in contact .In many cases friction is FOUND as the CAUSE of motion .without friction it is impossible to imagine this world.Friction is evil in mechanical MACHINES causing wear and tear of parts.Friction causes wear and tear of tyre but in turn is impossible to rotate tyre…and many more.

☺❤☺❤☺PLZZ MARK ME BRAINLIEST ⭐☺☺❤☺

P=F/A
=50/1*10^-6
=5*10^7 PASCAL

the PROPERTIES of ELEMENTS depends mainly on the DIFFERENTIATING electron

in a GROUP the differentiating electron ENTERS same sub-shell whereas in period it is different

B,C belong to same period as they are having same VALENCE SHELL configuration

A,B belong to same GROUP as the value of "n" is same

D is a NOBLE gas ELEMENT as it has octet configuration

3-period, 5-group n=3,valence electrons=5

By the FORMULA s=ut + 1/2at^2.
s=0 + 1/2(3)(8^2)=3/2(64)=96M

Acceleration=Force/Mass
=12/3
=4m/s^2

Each BLOCK element have different properties and they REPRESENT differnet valence SHELL configuration ACCORDING they can be SORTED and can be studies easily

Modern periodic table is BASED on atomic NUMBER of elements PRESENT in same GROUP or period

The answer is the longitudinal extent of India is 30° for every 15 degrees of longitudinal DISTANCE there is a corresponding time difference of ONE hour because Earth take 4 minutes to rotate through 1 DEGREE longitude .

Force =MASS MULTIPLY acceleration
p=ma
p = 4KG multiply (v-u/t) [v-u /t =a }
p=4kg multiply (20-10/5)
p = 4kg multiply (10/5)
p = 4kg multiply 2
p = 8N

I THINK the ANSWER is 3 ) 24 s.

(c)3 because l=1 will have p ORBITAL and p can have maximum 6 electrons and THEREFORE 3 orbitals if U agree then mark as brainliest bro