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

Time taken for1revolution=40sec 40sec=1revolution 1sec=1/40revolution No. Of revolutions in 2 min 20 sec =2×60+20×1/40=35revolutions Distance travelled in one revolution=2pie r So, Distance travelled in 35revolutions=35×2pie r=70 pie r Displacement=0

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A particle moves on a circular

Posted by Shipra Sai 7 years, 5 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

A particle moves in a circle of radius 0.5 starting from rest with a constant tangential acceleration of 2m/s the time in which velocity makes an angle of 45 degrees with acceleration vector is?

Posted by Shreya Pandey 7 years, 5 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Practical 1

Posted by Azad Singh Rawat 7 years, 5 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

એક ભાઈ નદી નાં કાંઠેથી બીજા કાંઠે નદી વહેણ ને લંબરૂપે જવા માટે , વહેણ સાથે ૧૨૦ ખૂણે , 0.5m/s વેગથી તરે છે તો પાણી નો પ્રવાહ m/s

Posted by Patel Turth 5 years, 8 months ago

CBSE > Class 11 > Physics

5 answers

Ishrat Khan 7 years, 5 months ago

Kya hai ye

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Aman Kumar 7 years, 5 months ago

Gujarti words seems very beautiful

1Thank You

∂Αяѕнαиαα ყα∂Αѵ ??? 7 years, 5 months ago

ohhh mujhe laga pta nhi kya hai.. ? ?

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Nancy Rajput 7 years, 5 months ago

he is speaking in gujarati dear?

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∂Αяѕнαиαα ყα∂Αѵ ??? 7 years, 5 months ago

himmat hai toh yhi chez normal way may likh ker bta. ?

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Pcm all books

Posted by Ahil Gj 7 years, 5 months ago

CBSE > Class 11 > Physics

1 answers

Shanoo Keshari 7 years, 5 months ago

Go to market and ask book seller perhaps you can got best books and that shop you can see and also read it casually ..

2Thank You

ANSWER

Which book we should study for pcm

Posted by Ahil Gj 7 years, 5 months ago

CBSE > Class 11 > Physics

1 answers

Mr. Thakur 7 years, 5 months ago

For physics; ncert textbook, ncert examplar and hc verma. For chemistry; ncert textbook, ncert examplar and pradeep chemistry. For maths; ncert textbook, ncert examplar and rd sharma

3Thank You

ANSWER

How study physics

Posted by Deepa Singh 7 years, 5 months ago

CBSE > Class 11 > Physics

1 answers

∂Αяѕнαиαα ყα∂Αѵ ??? 7 years, 5 months ago

I think your teacher will give better advice.. but.. according to many students (that I heard normally from everybody) they follow ncert and they do all the questions of refresher whether it is SL ya HC.

1Thank You

ANSWER

Significant figures

Posted by Praveen Sharma 7 years, 5 months ago

CBSE > Class 11 > Physics

2 answers

Mr. Thakur 7 years, 5 months ago

In significant figure are meaningful digits which are known with certainty. The uncertainty is indicated by writing the certain digits and the last uncertain digits and the last uncertain digits. Thus, if we write a result as 11.2mL, we say the 11 is certain and 2 is uncertainty would be +-11 in the last digit. Unless otherwise stated, an uncertainty of +1 in the last digit is always understood.

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∂Αяѕнαиαα ყα∂Αѵ ??? 7 years, 5 months ago

The meaningful digits which are known with certainty are known as significant figures.

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A gun is pointed at an angle 2π\13 with horizontal. To hit an enemy target but in actual practice a hill just block's the bomb at highest point of its path can the gun hit target in some other way

Posted by Shivanshi Singh 7 years, 5 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Two projectiles is projected at same speed but at angle of projection alfa and 90-alfa respectively. Find the ratio of 1) Horizontal range 2) maximum height attend 3) time of flight

Posted by Shivanshi Singh 7 years, 5 months ago

CBSE > Class 11 > Physics

2 answers

Mayank Bhunia 7 years, 5 months ago

H.R=1:1. H=tan^2@

1Thank You

Aditi Kumari 7 years, 5 months ago

Good

4Thank You

ANSWER

A projectile is projected such that its horizontal range is 4 times the maximum time attend. Find the angle of projection

Posted by Shivanshi Singh 7 years, 5 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Explain Equality of vectors.

Posted by Mohammed Mamoon 7 years, 5 months ago

CBSE > Class 11 > Physics

4 answers

Mohammed Mamoon 7 years, 5 months ago

Thanks

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Aman Kumar 7 years, 5 months ago

Ya ... same ans . From my side....

1Thank You

∂Αяѕнαиαα ყα∂Αѵ ??? 7 years, 5 months ago

in it.

0Thank You

∂Αяѕнαиαα ყα∂Αѵ ??? 7 years, 5 months ago

Two vectors are called equal if their magnitudes and directions are same..... thus,, a parallel translation of vector does not bring about any change....

3Thank You

ANSWER

Write short note on significant figures

Posted by Mayur Khonde 7 years, 5 months ago

CBSE > Class 11 > Physics

1 answers

∂Αяѕнαиαα ყα∂Αѵ ??? 7 years, 5 months ago

The meaningful digits which are known with certainty are known as significant figures.

1Thank You

ANSWER

Time for 20 oscillations of a pendulum is measured as t1=39.6 s; t2=39.9 s; and t3=39.5 s. What is the precision in the measurements? What is the accuracy of measurement?

Posted by ∂Αяѕнαиαα ყα∂Αѵ ??? 7 years, 5 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Hye

Posted by Aditig Sharma 5 years, 8 months ago

CBSE > Class 11 > Physics

1 answers

Nihal Sharma 7 years, 5 months ago

Hii

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Definition of elasticity

Posted by Ishrat Khan 7 years, 5 months ago

CBSE > Class 11 > Physics

1 answers

Aman Kumar 7 years, 5 months ago

The ability of an object to resume its normal shape after being streched or compressed......

3Thank You

ANSWER

Which is the best book for numericals in physics for neet preparation

Posted by Priyanshu Virendra 7 years, 5 months ago

CBSE > Class 11 > Physics

8 answers

Mr. Thakur 7 years, 5 months ago

N.C.E.R.T and H.C. VERMA

1Thank You

Sehajbeer Singh 7 years, 5 months ago

Pradeep is the best

1Thank You

Asad Ali 7 years, 5 months ago

HC verma is the best book for physics

1Thank You

Aman Kumar 7 years, 5 months ago

If ur teacher had prefering then go 4 that ...... its good.

1Thank You

Aman Kumar 7 years, 5 months ago

Yah! ? u can prefer H C Verma also....it is also a good book....

1Thank You

Priyanshu Virendra 7 years, 5 months ago

Totally confused yrr ! plz hlp me

0Thank You

Priyanshu Virendra 7 years, 5 months ago

@aman kumar my teachers r prefering me h.c.verma

0Thank You

Aman Kumar 7 years, 5 months ago

S.L Arora......

1Thank You

ANSWER

What is hyderogenation??

Posted by Anandni Gupta 7 years, 5 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Which is the capital of australia

Posted by Siddhartha Tiwari 7 years, 5 months ago

CBSE > Class 11 > Physics

3 answers

Aman Kumar 7 years, 5 months ago

Canberra.....

0Thank You

∂Αяѕнαиαα ყα∂Αѵ ??? 7 years, 5 months ago

it's Canberra not Sydney. ?

1Thank You

Mohd Faiz 7 years, 5 months ago

Sydney

1Thank You

ANSWER

A body of mass m hung at one end of the spring executes SHM. prove that the relation T=2pi/k is incorrect, where k is the force constant of the spring. Also derive the correct relation.

Posted by ∂Αяѕнαиαα ყα∂Αѵ ??? 7 years, 5 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Why electrons don't stay in nucleus

Posted by Mohit Yadav 7 years, 5 months ago

CBSE > Class 11 > Physics

1 answers

Tapan Pandey 7 years, 5 months ago

Because of the centrifugal force acting on electron from outside of the body

3Thank You

ANSWER

the radius of solid sphere is measured to be 11.24cm . what is surface area of the sphere to approximate significant figures?

Posted by Meet Kaur 7 years, 5 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Graph of y=√x

Posted by Aditya Aman 7 years, 5 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

In this app vector is not given

Posted by Abhishek Kumar 7 years, 5 months ago

CBSE > Class 11 > Physics

2 answers

Tapan Pandey 7 years, 5 months ago

Given

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Anmol Yadav 7 years, 5 months ago

Given h ...check out the videos

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ANSWER

Define displacement

Posted by Mohintha Krish 7 years, 5 months ago

CBSE > Class 11 > Physics

9 answers

Harsh Singh 7 years, 5 months ago

Sorry where we write motion (it is wrong)so,displacement can here the place of motion.

0Thank You

Harsh Singh 7 years, 5 months ago

The rate of change of motion is called as motion.

1Thank You

Tapan Pandey 7 years, 5 months ago

Join the initial and final point with straight line is known as displacement

0Thank You

Pooja Bhardwaj 7 years, 5 months ago

The difference between initial and final position of an object

0Thank You

Anmol Yadav 7 years, 5 months ago

The straight line distance between initial and final point is known as displacement

1Thank You

Anuj Singh 7 years, 5 months ago

The shortest distance travelled between two points is known as displacement

2Thank You

Yash Barnwal 7 years, 5 months ago

The shortest distance covered by an object in a specified direction

2Thank You

Mahesh Rd 7 years, 5 months ago

shortest distance covered by an object

1Thank You

Nancy Rajput 7 years, 5 months ago

the distace beteween two points or station is called displacement

1Thank You

ANSWER

Million and billion of electrons in an coin repel each other .Why don't they fly out of the coin?

Posted by Ambika Muduli 7 years, 5 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

How is 3 root 3 equals to 1/root 3

Posted by Heb Dhar 7 years, 5 months ago

CBSE > Class 11 > Physics

1 answers

Tapan Pandey 7 years, 5 months ago

It is not equal

1Thank You

ANSWER

hello cbse guider pls help me by answer my question i want solution of my question ?

Posted by Nancy Rajput 7 years, 5 months ago

CBSE > Class 11 > Physics

1 answers

Aman Kumar 7 years, 5 months ago

And ur question is???

1Thank You

ANSWER

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