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Why physics is hard

Posted by Subash Poudel 6 years, 1 month ago

CBSE > Class 12 > Physics

3 answers

Aman Kumar 6 years, 1 month ago

Bro, mood toh kisi ka nahi hota ....but I have to do u know, ohk every people have different reason for there study...I give one example, if u have completed ur whole syllabus, but u didn't revised it then, at last point ur competitor (if u have any) will come first....having all the possibility of getting a good marks but won't be....So , if u imagine the exact senario happens on ur mind....then automatically u get a kind of fear in ur mind of losing from it...As a result.. at that time, u won't be think about ur mood...and u will start ur study.......so in this way, u can beat up ur mood....

▪▪Amrit▪▪ ❤ 6 years, 1 month ago

But how to practice .no mood ..bro

Aman Kumar 6 years, 1 month ago

Physics is not hard, it has been set in our mind that physics is hard. Physics is all about conceptual understanding with numericals.If one can practice daily it will easy for them .

ANSWER

Why field lines are always perpendicular to the conducter?

Posted by Tamanna Sharma 6 years, 1 month ago

CBSE > Class 12 > Physics

3 answers

Aditya Chauhan 6 years, 1 month ago

Yaa yogita ingle is Right

Yogita Ingle 6 years, 1 month ago

Because electric field lines must be perpendicular to the surface of conductor, otherwise there would be a non zero component of electric field along the surface of conductor and charges could not be at rest.

Madhu Rai 6 years, 1 month ago

The work done in moving a charge on a conductor is zero and if the field lines will not be perpendicular they will have non zero components and hence the Work done won't be zero then

ANSWER

Can I get all the mandatory formulae for calculation in class 12

Posted by Sandesh Dahal 6 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Tamanna Sharma 6 years, 1 month ago

It's given in arihant sample paper.

ANSWER

Can anybody tell me what is 'angular' fringe width??

Posted by Aryan Bhavsar 6 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Neha Choudhary 6 years, 1 month ago

Theta =beeta /d

ANSWER

Why alloy is good conductor of electricity

Posted by Pooja Rajawat 6 years, 1 month ago

CBSE > Class 12 > Physics

2 answers

Sachin Shroof 6 years, 1 month ago

Hii puja Because Alloy have high Resistiviy they allow to pass electric current easily. Okk.

Rohan Rajput 6 years, 1 month ago

Hii pooja

ANSWER

Van der graaf generator paper mai aa skta hai ya nhi..??

Posted by Shubham Gupta 6 years, 1 month ago

CBSE > Class 12 > Physics

3 answers

Soumya Kushwaha 6 years, 1 month ago

Not in cbse board

Tamanna Sharma 6 years, 1 month ago

Nahi

Neha Choudhary 6 years, 1 month ago

Nhi syllabus me ni h

ANSWER

Ye numericals physics mein kitne marks ke aayege abki bar

Posted by Prashant Kaushik 6 years, 1 month ago

CBSE > Class 12 > Physics

3 answers

Prashant Kaushik 6 years, 1 month ago

Thanks

Rohan Tesla 6 years, 1 month ago

15-20 numbers for numerical and rest of the marks will be for derivations & theory..

The Heroism 6 years, 1 month ago

11-18 Marks... Baaki Theory...

ANSWER

McQ nahi d rakha aap ma possible mcq hona chahiya tha

Posted by Yash Chaudhary 6 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Shruti Gupta 6 years, 1 month ago

Cbse guide m overall sare types k question h ..for mcq go for exampler sectiom

ANSWER

Diff between reflective and refractive type telescope

Posted by Anish Thakur 6 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Shruti Gupta 6 years, 1 month ago

Given in sl arora as well in arihant

ANSWER

Relation between effective and peak valu of a.c.

Posted by Lalit Chouhan Lalit 6 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

ANSWER

If i write same answers as given in this app in my answersheet are there any chances of marks deduction? I mean, are the solutions on this platform complete and trusted?

Posted by Aryan Bhavsar 6 years, 1 month ago

CBSE > Class 12 > Physics

4 answers

Soumya Kushwaha 6 years, 1 month ago

Just sharing my experience In Class 10, my English teacher gave me the format of writing LETTER in English exam. But just one day before my Board Exam, i saw here that DATE was written in another format & Subject was written above! I got confused & decided to follow the application on the Exam day. Despite having English my Strongest subject, i got 92 only. And my marks were cut in the format of LETTER which i checked from the application. So, my suggestion is to follow your teachers or books more than the application, and using it only for little help. Regards Soumya?

Tamanna Sharma 6 years, 1 month ago

Ya, my friend,its absolutely sufficient

Vinay Gautam 6 years, 1 month ago

Ofcourse yrr its trusted and complete

Sambhav Jain 6 years, 1 month ago

Yes,Of course

ANSWER

Define displacement current ? Show.that the conduction and displacement curents are indvidualy discontinous byt their sum is continuous.

Posted by Smile Sarangal 6 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Shruti Gupta 6 years, 1 month ago

Current bewteen two plates of capacitor

ANSWER

I am hear this year cbse announced all papers class12 1questions mark have been 25 question❓ true or false

Posted by Shanu Verma 6 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Rahul Tiwari 6 years, 1 month ago

Only 20 will be there

ANSWER

What is van de Graff generator? Discuss brefily

Posted by Mukesh Eswaran 6 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Tamanna Sharma 6 years, 1 month ago

Out of syllabus

ANSWER

How does current flow in reverse bias in pn junction

Posted by Manisha Kumari 6 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Itisha Bathla 6 years, 1 month ago

When negative terminal is attached to the p region and positive terminal is attached to the n region by this current flow in reverse bias

ANSWER

Two vectors of equal magnitude are added to give resultant which is of same magnitude as the two vectors. Find the angle between two vectors.

Posted by Md Abuzarr Ansari 6 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Pratik Patra 6 years, 1 month ago

120

ANSWER

Expression of torque due to electric field

Posted by Govind Kumar 6 years, 1 month ago

CBSE > Class 12 > Physics

4 answers

Santosh Kumar 6 years, 1 month ago

[A] if dipole is placed along electric field then Fnet=qE-qE=0 i.e.,there is no any translatory motion. Also both force are passing through same line, hence the dipole will not rotate .torque=0 [B] If dipole is placed at an angle thita with uniform electric field then There is no any translatory motion. But both forces are not passing through same line, Hence the dipole will rotate. Torque =force×perpendicular distance =qE×2lsine thita =PEsine thita Torque = P×E For torque max Thita=90° For torque min Thita=0°

Shatayu Ganvir 6 years, 1 month ago

P×E

Neha Choudhary 6 years, 1 month ago

T =pE sintheta

Govind Kumar 6 years, 1 month ago

I don't know

ANSWER

Two large charged plane sheets of charge densities sigma and 2sigma C/m^2 are arranged vertically with a separation of d between them. Deduce expression for the electric field at points (1) to the left of the first sheet, (2) to the right of the second sheet, and (3) between the two sheets.

Posted by Santosh Kumar 6 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Neha Choudhary 6 years, 1 month ago

ELeft =0 Eright=0 Emid =sigma ÷2absilan not + sigma÷2absilan not =Signa ÷absilan not

ANSWER

A small metal sphere carrying a charge +Q is located at centre of spherical cavity in a uncharged matallic spherical shell. Write the charges on the inner and outer surfaces of the shell.

Posted by Rahul Kumar 6 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Tamanna Sharma 6 years, 1 month ago

If it is a metallic sphere then all the charge is on the surface and due to induction The other surface get opposite charge

ANSWER

As questions are given in CBSE issued sample paper Same type question will be asked in boards Like pattern

Posted by Avi Raj 6 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Neha Choudhary 6 years, 1 month ago

Yes may be

ANSWER

N/m is whose unit

Posted by Rahul Singh 6 years, 1 month ago

CBSE > Class 12 > Physics

5 answers

Kashish Kesharwani 6 years, 1 month ago

surface tension unit is N/m.

Tamanna Sharma 6 years, 1 month ago

Surface tension

Akshit Saini 6 years, 1 month ago

N/m is surface tension S.I unit

Akshit Saini 6 years, 1 month ago

Torque = force × perpendicular distance nd S.I unit is N.m

Suraj Kumar 6 years, 1 month ago

Torque

ANSWER

What is exact meaning of elimectric charge

Posted by Sunny Maurya 6 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Drive an expression for the energy stored in a capacitor C with charge q and also find the energy density of the electric field

Posted by Aakash Verma 6 years, 1 month ago

CBSE > Class 12 > Physics

2 answers

Neha Choudhary 6 years, 1 month ago

Energy =q^2÷2C

Dishant Sah 6 years, 1 month ago

Abhe bata ta hu

ANSWER

What is the meaning of Ke square divided by G Me square

Posted by Santosh Dubey 6 years, 1 month ago

CBSE > Class 12 > Physics

2 answers

Neha Choudhary 6 years, 1 month ago

Its represents the ratio of electostatic force and gravitation force For electron It come out to be 2.3×10^39

Hempal Mehra 6 years, 1 month ago

Sss

ANSWER

What should i do to revise Physics whole syllabus now ?

Posted by Keshav Sarangal 6 years, 1 month ago

CBSE > Class 12 > Physics

4 answers

Keshav Sarangal 6 years, 1 month ago

For Physics... NCERT krni chahiye kya last days mein hme ??

Aditya Chauhan 6 years, 1 month ago

And can go through previous year quetion papers

Ashish Sharma 6 years, 1 month ago

Do one thing, study.

Aditya Chauhan 6 years, 1 month ago

For revising just revise the notes you hsve made the whole year And go on numericals

ANSWER

Derive the expression for magnetic field at the centre of a current carry wire ? 5 m

Posted by Seema Meisnam 6 years, 1 month ago

CBSE > Class 12 > Physics

3 answers

Neha Choudhary 6 years, 1 month ago

Uo i theta /4π r

Divyanshi Makode 6 years, 1 month ago

B=uo/4π ×2πI/a

Divyanshi Makode 6 years, 1 month ago

According to biot savarts law

ANSWER

Is aal in one a better book for cbse prerrations

Posted by Jyoti Verma 6 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Aditya Chauhan 6 years, 1 month ago

Yes Dear it is good if you are preparing only for board But have a look of ncert again & again

ANSWER

Draw a graph showing variation of de broglie wavelength with the momentum of an electron

Posted by Jahnvi Agarwal 6 years, 1 month ago

CBSE > Class 12 > Physics

2 answers

Jahnvi Agarwal 6 years, 1 month ago

Mujhe nahi pataa that's why I asked ?

Sunny Maurya 6 years, 1 month ago

Graph kaise

ANSWER

I have one question that i am from uttrakhand so the students of ky school who are sitting at my back would have same paper whicg i have so i cwn ask them mcq plzz anyone answer

Posted by Aditya Joshi 6 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

ANSWER

What is the marks distribution between theory and numericals in physics upcoming cbse exam class 12??

Posted by Saksham Deep 6 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Sheikh Mohammad 6 years, 1 month ago

70 % theory and 30%numericals

ANSWER

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