CBSE > Class 12 > Physics | CBSE Board | Homework Help

Kuch to pdha hi ho ga pure year me ....usse strong krlo bilkul or jo chote chote chap h unhe pdhlo jse EMI , EM waves , Communication system .....or NCERT me se saare chap ki summmary pdhlo nd time bche to sample paper bhi krlena paas to ho hi jaoge......But u have to be determimed... .nd not lose hope....ALL THE VERY BEST...??

0Thank You

Rahul Walmiki 7 years ago

Bhagwan se Dua karna

1Thank You

ANSWER

State si unit of electric polarization vectorP

Posted by Anshul Yadav 7 years ago

CBSE > Class 12 > Physics

1 answers

Somsuvra Das 7 years ago

Cm-2

3Thank You

ANSWER

Is studying copy +ncert in this time is fine for preparation for exam?

Posted by Shaista Siddiqui 7 years ago

CBSE > Class 12 > Physics

3 answers

Kalas Sahu 7 years ago

No please follow 10 years

2Thank You

Riya Singhal 7 years ago

No only do sample papers

1Thank You

Raj Raj 7 years ago

No Do paper

0Thank You

ANSWER

Capactance of capactor due to dielectric conductivity of slab

Posted by I. Tyagi 7 years ago

CBSE > Class 12 > Physics

1 answers

Vivek Sharma 7 years ago

Capacitance of capacitor C=Epsilon Not *A/d

1Thank You

ANSWER

In what way is the behavior of a diamagnetic material d/f from that. a paramagnetic when kept in an external magnetic field

Posted by Mayank Sharma 7 years ago

CBSE > Class 12 > Physics

1 answers

Vivek Sharma 7 years ago

From diamagnetic material no magnetic field lines pass But from paramagnetic less dense magnetic field lines pass

0Thank You

ANSWER

How light emitting diode is fabricated?

Posted by Dinabandhu Maiti 7 years ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Is light emitting diode in syllabus of class 12?

Posted by Dinabandhu Maiti 7 years ago

CBSE > Class 12 > Physics

1 answers

Anshul Yadav 7 years ago

Yes

1Thank You

ANSWER

Can anyone please send your school's preboard paper (phy)?

Posted by Saarang Agarwal 7 years ago

CBSE > Class 12 > Physics

1 answers

A Jaiswal 7 years ago

Why Not bro!! .....but how?

1Thank You

ANSWER

Why do electric field lines do not form closed loops

Posted by Ad Technical 7 years ago

CBSE > Class 12 > Physics

3 answers

Vivek Sharma 7 years ago

Because they start from positive and terminate at negative

0Thank You

Saarang Agarwal 7 years ago

How can electric field lines start and end at the same point. They are directed from the positive to negative charge.

3Thank You

Apsara Htc 7 years ago

Two tangent

1Thank You

ANSWER

What is important in refraction part of optics

Posted by Sangeeta Nara 7 years ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Are you all doing previous years papers??

Posted by Anshika Babbar 7 years ago

CBSE > Class 12 > Physics

3 answers

A Jaiswal 7 years ago

Yeah

1Thank You

Anshul Yadav 7 years ago

Yes

1Thank You

Abc Kamboz 7 years ago

Yes

2Thank You

ANSWER

Is nuclear reactor included in class 12 physics syllabus 2019 board exam

Posted by Sonam Malik 7 years ago

CBSE > Class 12 > Physics

2 answers

Rahul Prajapati 7 years ago

How we come to know which topic had been deleted in cbse board i just know oscillilator and van de graff genarator

1Thank You

Abc Kamboz 7 years ago

2Thank You

ANSWER

Four nuclei of an element undergo fusion to form a heavier nucleus, with release energy. Which of the two - the parent or the daughter nucleus- would have higher binding energy per nucleon?

Posted by Rishita Verma 7 years ago

CBSE > Class 12 > Physics

1 answers

Abc Kamboz 7 years ago

Daughter nuclei

1Thank You

ANSWER

A proton and an electron travelling along parallel paths enter a region of uniform magnetic field, acting perpendicular to their paths. Which of them will move in a circular path with higher frequency?

Posted by Rishita Verma 7 years ago

CBSE > Class 12 > Physics

2 answers

Rakesh Yadav 7 years ago

Electron move in a circular path with higher frequency!

1Thank You

Cicil George 7 years ago

Electron since it posses less mass...as mass increases frequency decrease

2Thank You

ANSWER

Avalanche breakdown

Posted by Shalini Agrahari 7 years ago

CBSE > Class 12 > Physics

0 answers

ANSWER

How we must read this subject

Posted by Bharath Kumar Bharath Kumar 7 years ago

CBSE > Class 12 > Physics

1 answers

Muskan Goyal 7 years ago

By practicing derivations clearing concepts and attempting numericals of all types.

0Thank You

ANSWER

Threshold frequency of a substance is 6000A.find maximum kinetic energy of each emmited photo electric. when liquid of 5000A is incident surface on its surface

Posted by Rambaran Agrahari 7 years ago

CBSE > Class 12 > Physics

0 answers

ANSWER

What is impact parameter

Posted by Guru Singh 7 years ago

CBSE > Class 12 > Physics

1 answers

Sangeeta Nara 7 years ago

It is the distance b/w central line of nucleus and velocity vector

3Thank You

ANSWER

Where i can get the cbse released latest phy sample paper2019?

Posted by Khushboo Kapoor 7 years ago

CBSE > Class 12 > Physics

3 answers

A Jaiswal 7 years ago

On that app cbse guide

0Thank You

Shivam Kumar 7 years ago

On cbse website

0Thank You

Nishant Pandit 7 years ago

Net

0Thank You

ANSWER

What is the cause of frictional electricity

Posted by Abhishek Patel 7 years ago

CBSE > Class 12 > Physics

1 answers

Roopam Jain 7 years ago

On rubbing two materials together there is a transfer of electrons from one body to the other. As a result, static charges develop on the two bodies. One body gets positively charged and the other body gets negatively charged. This is called frictional electricity.

1Thank You

ANSWER

Define electric potential

Posted by Gaurav Giri 7 years ago

CBSE > Class 12 > Physics

1 answers

Gaurav Seth 7 years ago

Electric potential at a point in an electric field, is defined as the amount of work done in order to move a unit positive charge from infinity to that point along any path, against the electrostatic forces, with acceleration zero.

0Thank You

ANSWER

Some important questions from magnatic field

Posted by Tik Tok Videos & Status Videos 7 years ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Can a hydrogen atom absorb a photon energy more than 13.6eV

Posted by Nikita Pal 7 years ago

CBSE > Class 12 > Physics

3 answers

A Jaiswal 7 years ago

Absorb!!!!

0Thank You

A Jaiswal 7 years ago

According to me........... no it can't observe.... because it's lowest element

0Thank You

Md Shakir 7 years ago

yes it can absorb

2Thank You

ANSWER

what is ohms first low

Posted by Akash Goyal 7 years ago

CBSE > Class 12 > Physics

1 answers

Pragya Gupta 7 years ago

V =iR

0Thank You

ANSWER

Plz tell some important fixed questiom for foreign board

Posted by Harshit Rathi 7 years ago

CBSE > Class 12 > Physics

0 answers

ANSWER

I think optical instrument most important chapter..

Posted by Prakash Dhami 7 years ago

CBSE > Class 12 > Physics

3 answers

Sonal Sonal 7 years ago

Esme se 5 marks ka aata h lens m se

0Thank You

A Jaiswal 7 years ago

Yes ...... It's important ........ Astronomical telescope and microscope pr questions aate h

0Thank You

Sonia Sharma 7 years ago

n Sh j Jr fhh

1Thank You

ANSWER

Current electricity main Jaada important Kya hai

Posted by Shivam Kumar 7 years ago

CBSE > Class 12 > Physics

3 answers

Sonal Sonal 7 years ago

Last k topic

0Thank You

A Jaiswal 7 years ago

I think potentiometer is most important ??

5Thank You

Siddhant Gaurav 7 years ago

1.Ohms law and its derivations 2.Drift velocity of free electrons and its relation with current I equals neAvd 3.Series and parallel combination of resistanance 4.Potentiometer principles and working and numerical

2Thank You

ANSWER

Permeability of diamagnetic material

Posted by Haste Hari 7 years ago

CBSE > Class 12 > Physics

1 answers

Md Shakir 7 years ago

bhai formula yad kRlo iska numrical hi ayefa

1Thank You

ANSWER

At this From where should we do conceptual/theory questions for board exam???

Posted by Isha Ahuja 7 years ago

CBSE > Class 12 > Physics

2 answers

Isha Ahuja 7 years ago

Bro???i hve done all tht thing ,......downloaded those pdf of aman bhaiya of imp theory and derivation and learnt it .........ye to ho gya direct queations.........bt itna krne se 95 ya 100 nhi a skate na......bt thanku very much for answering the question??

0Thank You

Siddhant Gaurav 7 years ago

First of all search on YouTube important theory and derivation by aman dhattarawal then go to description wahan pr link hoga pdf ka click karke download krlena and printout krlena uske baad jo jo deep m likha hoga unsare topic ko Pradeep ksheterpal channel on YouTube se samajh Lena abhi bhi 6 din h matlab 144 hrs ab har ek din ka jyada se jyada use kaise krna h tum acche se jante ho Best of luck???? phor dalo exam me

2Thank You

ANSWER

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