CBSE > Class 11 > Physics | CBSE Board | Homework Help

When 2 vectors act on an angle then parallelogram law is used and when 2 bodies or vectors don't form any angle with each other instead move parallel to each other either in same direction or in opposite direction we use relative velocity. Hope this will help u.

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Youtv sa money kase earn kara????

Posted by Mukesh Sinha 7 years, 6 months ago

CBSE > Class 11 > Physics

1 answers

Naaaaaaaaaaaaaaaaaaa Naaaaaaaaaaaaaaaaaaa 7 years, 6 months ago

Bhai padjai karo phir money earn larna

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Which guide is good for reference

Posted by Gowshiga Pichamuthu 7 years, 6 months ago

CBSE > Class 11 > Physics

3 answers

Manpreet Kaur 7 years, 6 months ago

Pardeep's fundamental

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Reet Rajneet 7 years, 6 months ago

Modern

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Mukesh Sinha 7 years, 6 months ago

Haaa

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What is Archimedes principal?

Posted by Mansi Das 7 years, 6 months ago

CBSE > Class 11 > Physics

2 answers

Gaurav Kumar 7 years, 6 months ago

the weight of displaced water is equal to the upthrust

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Nancy Rajput 7 years, 6 months ago

it shows buyount force and displacement of fuild or any solution

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the angle 1degree 54 minute is formed when mooon is observed from two diametrically opponent positions A & B on earth's surface. find distance of moon if the diameter of earth's 1.276 * 10times meter.

Posted by Rajveer Singh 7 years, 6 months ago

CBSE > Class 11 > Physics

1 answers

Tripti Sharma 7 years, 6 months ago

Hii

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Vector type: Null Vector gives direction to other vector?

Posted by Zeel Sutariya 7 years, 6 months ago

CBSE > Class 11 > Physics

2 answers

Ʌɐpɐʎ Ɐuɐɥsɹɐp . 7 years, 6 months ago

I think it is possible for a zero magnitude vector to have direction.

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Ʌɐpɐʎ Ɐuɐɥsɹɐp . 7 years, 6 months ago

The zero vector has no particular direction; this is consistent with the fact that it is orthogonal to every other vector.

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A vector A makes an angle of 20 and B makes an angle of 110 with the X-axis . The magnitudes of these vectors are 3 m and 4 m respectively. Find the resultant.

Posted by Palakshi Kulshreshtha 7 years, 6 months ago

CBSE > Class 11 > Physics

1 answers

Ʌɐpɐʎ Ɐuɐɥsɹɐp . 7 years, 6 months ago

Resultant vector makes angle = 73 degree with X axis

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d/dx[x1/5]=?

Posted by Arjun Pathak 7 years, 6 months ago

CBSE > Class 11 > Physics

1 answers

Manish Jaat 7 years, 6 months ago

1/5

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Concept of uniform circular motion

Posted by Vivek Bhattacharjee 7 years, 6 months ago

CBSE > Class 11 > Physics

1 answers

Aman Kumar 7 years, 6 months ago

Uniform circular motion means motion of an object moving in a circular path with a constant speed.

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I wanted to know that which chapter of are important for competitive exams

Posted by Ashish Kanwal 7 years, 6 months ago

CBSE > Class 11 > Physics

1 answers

Khushbu J 7 years, 6 months ago

We should have knowledge of every chapter.

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What is mass of elctrone

Posted by Yashika Subhang 7 years, 6 months ago

CBSE > Class 11 > Physics

2 answers

Mitali Singh 7 years, 6 months ago

9.1 × 10 to the power -31

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Nancy Rajput 7 years, 6 months ago

9.109×10−31

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The air bubble formed by explosion inside water perform oscillations with time period X is connected from X=ab2 C. Calculate the percentage error in X, when % error in a, b, c are 4, 2, and 3 respectively.

Posted by Darpan Yadav 7 years, 6 months ago

CBSE > Class 11 > Physics

2 answers

Mahesh Rd 7 years, 6 months ago

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Ʌɐpɐʎ Ɐuɐɥsɹɐp . 7 years, 6 months ago

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how much cheapers you have learned at present time (chemistry)? Can anyone help me with your answers...

Posted by Pushpraj Ghritlahre 7 years, 6 months ago

CBSE > Class 11 > Physics

0 answers

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Which is the best referrence book for physics class 11 cbse

Posted by Priti Naik 7 years, 6 months ago

CBSE > Class 11 > Physics

3 answers

Priya Dharshini ? 7 years, 6 months ago

Allen books or sl arora

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Renu Yadav 7 years, 6 months ago

First you do ncert fully and u will get 80 precent marks in exam And u had done ncert fully then go for SL Arora

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Ʌɐpɐʎ Ɐuɐɥsɹɐp . 7 years, 6 months ago

ncert and SL Arora

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What is diffrience b/w derive and fundamental qunatity

Posted by Ashish Kumar 7 years, 6 months ago

CBSE > Class 11 > Physics

7 answers

Nancy Rajput 7 years, 6 months ago

ok its a good educatinal app

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Ʌɐpɐʎ Ɐuɐɥsɹɐp . 7 years, 6 months ago

meritnation is good app in comparison to other app in my opinion

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Nancy Rajput 7 years, 6 months ago

i also

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Ʌɐpɐʎ Ɐuɐɥsɹɐp . 7 years, 6 months ago

yes because.. I study from meritnation.. and I am using that app when I was in class 10th.

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Nancy Rajput 7 years, 6 months ago

you refer meritnation i refer that because my books are not come

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Ʌɐpɐʎ Ɐuɐɥsɹɐp . 7 years, 6 months ago

Fundamental quantities are those which are the most basic quantities in nature and cannot be derived. Example: Length, Mass, Time etc. You cannot derive them from other quantities. Derived quantities are those which can be derived from the fundamental quantities. Example: Seed is a derived quantity. It can be derived from fundamental quantities length and time.

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Nancy Rajput 7 years, 6 months ago

The units of fundamental physical quantities are called fundamental units. They are length, mass and time. These units can neither be derived from one another nor can be resolved into any other units. They are independent of one another. Units of physical quantities can be expressed in terms of fundamental units and such units are called derived units. Unit of area can be an example for derived unit. If L is the length of square then L x L = L2 is its area. Similarly, the volume of a cube is L x L x L = L3 cubic area. Units of any physical quantity can be derived from its defining equation.

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Gravitational force for 11 th

Posted by Rakesh V 7 years, 6 months ago

CBSE > Class 11 > Physics

0 answers

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Check v=root under pressure by rho

Posted by Sumit Kumar 7 years, 6 months ago

CBSE > Class 11 > Physics

2 answers

Archita Bhattacharjee 7 years, 6 months ago

Hi Nancy !... U r there in brainly right ?

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Nancy Rajput 7 years, 6 months ago

by using dimensional equation you can check it

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What is scientific notation

Posted by Kishore M 7 years, 6 months ago

CBSE > Class 11 > Physics

1 answers

Pushpraj Ghritlahre 7 years, 6 months ago

We can simply understand scientific notation by this formula => a*10(power)b or, We can say that scientific notation is the process of writing the given no. Less than 10. Example->(1) 1.02*10(power)2 (2) 2.23*10(power)-3 (3) 9.9*10(power)5 Is this information is helpful or not plz reply me. Okay

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If time period (T) depends upon length (L) and acceleration (g) due to gravity then derive relation between them

Posted by Sujeet Kumar 7 years, 6 months ago

CBSE > Class 11 > Physics

0 answers

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If potential energy (U) depends upon mass (M) acceleration due to gravity (g) and height (h) then derive relation between them

Posted by Sujeet Kumar 7 years, 6 months ago

CBSE > Class 11 > Physics

0 answers

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Why do we call physics as exact science?

Posted by Ranjith Saravana 7 years, 6 months ago

CBSE > Class 11 > Physics

0 answers

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The two thigh bones, each of area10cmsq. support the upper part of the human body of mass 40kg. Esticate the total pressure sustained by the both bones. Apply, formula for weight, W=m×9.8.

Posted by Biswajit Dash 7 years, 6 months ago

CBSE > Class 11 > Physics

0 answers

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What is coulom's law?

Posted by Akshay Verma 7 years, 6 months ago

CBSE > Class 11 > Physics

1 answers

Yogita Ingle 7 years, 6 months ago

Coulomb's law states that the magnitude of the electrostatic force between two point charges is directly proportional to the product of the magnitudes of the charges and inversely proportional to the square of the distance between them.
F = kQ₁Q₂/r²,

The proportionality constant k is called the electrostatic constant and has the value: 9,0 ×10⁹ N⋅m²⋅C⁻² in free space.

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What will be the differentiation of 2x+5/3x+2

Posted by Dishant More 7 years, 6 months ago

CBSE > Class 11 > Physics

1 answers

H!Mαη$Hμ Ұαδαυ ✔️ 7 years, 6 months ago

2-5/3x^2

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How much high above the ground, a boy can throw the ball if he is able to ghrown the same ball upto maximum horizontal distance of 50m

Posted by Jasmine Kaur 7 years, 6 months ago

CBSE > Class 11 > Physics

1 answers

H!Mαη$Hμ Ұαδαυ ✔️ 7 years, 6 months ago

Ans is 25m As range =u^2sin2¢/g For max. Range, R=u^2/g ,u^2/g=50...(given) ,u^2=50g......(i) And from third eq. Of motion ,v^2-u^2=2as ,here v=0,u=...from eq (i),a=-g,and s is question ,0-50g=2(-g)H.......from (i) ,H=50g/2g ,H=25metres....this is answer...

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Latent heat of ice is equal to 80 calorie per gram change into joule per kg

Posted by Mr Brand 7 years, 6 months ago

CBSE > Class 11 > Physics