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Physics - Class 11

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1)Can i start with rotational motion and gravitation first in physics for neet? 2)which are the base chapters for rotational motion and gravitation? 3)Are laws of motion and work energy power base chapters and necessary to do before RM & Gravitation?

Ayush Pandey 23rd Nov, 2020

You can do gravitation anytime.. but for doing doing rotational motion you should know some basics of vector, mechanics and circular motion.. all this is necessary and is used while studying the rotational motion..

While study these chapters some basic formula like force, energy should also be known to you..

67 Views

on the basic of bulk modulus and compressibility which materials are easier to compress

Dinesh nehra 26th Oct, 2020

Bulk modulus is the measurement of decrease in volume while increase in pressure.the bulk modulus property of material is related to behaviour of elasticity.

Bulk modulus can also be defined as the relative change in the volume of body produced by unit compressive or tensile strength.

Summary:gases will compress more

718 Views

Find normal reaction and acceleration of block

ARYAN SAGAR 19th Oct, 2020
Dear student,

Normal reaction is a force that acts perpendicular to two surfaces in contact with each other. And acceleration is rate of change of velocity.
In terms of NLM, acceleration is force per mass.

Now as you have asked to find normal reaction and acceleration, then it is impossible
660 Views

what is taxonomy and what is classification of plants?

Soumili Majumdar 3rd Oct, 2020
Hello there,

Taxonomy is a science that deals with naming, describing and classification of all living organisms including plants. Classification is based on behavioural, genetic and biochemical variations. Characterization, identification, and classification are the processes of taxonomy.

Organisms are classified into similar categories namely kingdom, phylum, class, order, family, genus
100 Views

what is physical quantity .explain

Anurag Khanna 25th Sep, 2020

Hello Aspirant,

See Physical quantity is nothing but just a property which is used to quantify the measurement. It is is denoted by the combination of a numerical value and unit. Let us take an example to understand it more clearly, suppose your mother asked you to bring sanitizer from

162 Views

the dimensional formula of magnetic flux is

NAVYA BOINPALLY Student Expert 17th Sep, 2020

Hi Amol Pujari,

Magnetic flux is the product of the average magnetic field times the perpendicular area that it penetrates. it is a quantity of convenience in the statement of faraday's law and in the discussion of objects like transformers and solenoids

The dimensional formula of magnetic flux is

[M

56 Views

The object of force M is projected at the same speed at 6 anglesIf so what is the velocity of the object after time?

Uttara 5th Nov, 2020

Hello,

Your data seems to be insufficient,as there are 3 cases for projection at different angles ie. Projection from ground,projection form a height,projection from an inclined plane however following are the conclusions that I could arrive at-

1)At 6 different angles means that the range of the object will be

3674 Views

a ball is thrown vertically upward with a velocity u from the balloon descendingg with velocity v the ball will passes by the balloon after time t equal to

Prabhav Sharma 22nd Aug, 2020

Hello,

The velocity of ball is u m/s

The velocity of descending balloon is v m/s

Therefore, the velocity of ball w.r.t. balloon is u + v m/s

Now, the ball will pass the balloon when the relative displacement between the two is zero.

Now, displacement is given by, s

2896 Views

one body is dropped while the second body is thrown down words with initial velocity of 2 metre per second simultaneously the separation between them is 18 years after time

Prabhav Sharma 22nd Aug, 2020

Hello,

The displacement of a body is given by s = ut + 1/2 * a * t^2

For a freely falling body, u = 0

Therefore, s1 = 1/2 * a * t^2 = 1/2 * 10 * t^2 = 5 * t^2

Therefore, s1 = 5 * t

61 Views

a spring of force constant k is cut into lenghts of ratio 1:2:3 then we get three springs of length l/6, 2l/6, 3l/6 how did we get this?

Prabhav Sharma 22nd Aug, 2020

Hello,

Assume the length of the spring to be 'l'

Now the ratios of lengths in which the spring is cut is 1:2:3

That means the length of the three new springs will be x, 2x and 3x where x is equal to some constant.

Therefore, 1x + 2x +

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