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

The relation between the angle of the prism A, the angle of minimum deviation {tex}\delta _ { m }{/tex} and angle of incidence i of a triangular prism is given by:
{tex}i= \frac { A + \delta _ { m } } { 2 }{/tex}

0Thank You

ANSWER

Kya physics ka 2019 20 ka sample paper aavgaya

Posted by Shivam Dhankhar 6 years, 3 months ago

CBSE > Class 12 > Physics

5 answers

Padma Tsultim 6 years, 3 months ago

No??

0Thank You

Akanksha Kumari? 6 years, 3 months ago

0Thank You

꧁≪Mämƭå ℭℏ۝ᑌĎℎàℜÿ? 6 years, 3 months ago

No, it will come in nobember or december

0Thank You

Kajal Kunwar 6 years, 3 months ago

Nhi ☺☺☺☺

0Thank You

Aman Kumar 6 years, 3 months ago

Nhi

0Thank You

ANSWER

8. In an experiment of calibration of voltmeter, a
standard cell of emf 1-1 V is balanced against 440
cm or potentiometer wire. The potential difference
across the ends of a resistance is found to balance
against 220 cm of the wire. The corresponding
reading of voltmeter is 0.5 volt. Find the error in the
reading of voltmeter.
[Ans. - 0-05 V]

Posted by Bhjana Ram 6 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Draw the patterb of electric field lines when a point charge -Q is kept near an uncharged conducting plate

Posted by Chirag Pandey 6 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Sia ? 6 years, 3 months ago

When a positive charge "+q" is placed near the uncharged metal plate then Equal charge of opposite nature induces in the surface of conductor nearer to the source charge which can be shown as -

Electric lines of forces should fall normally is at 90°on the conducting plate as the electric field lines are always perpendicular to the conductor.

0Thank You

ANSWER

Most toughest chapters in physics?

Posted by Justin Bieber 6 years, 3 months ago

CBSE > Class 12 > Physics

2 answers

Akanksha Kumari? 6 years, 3 months ago

I think it's electrostatics

1Thank You

▪▪Amrit▪▪ ❤ 6 years, 3 months ago

all

0Thank You

ANSWER

Two positive point charge which are 0.1m apart from each other with a force of 1.8N if the sum of the charges be 9micro C calculate their separate values

Posted by Nasima Khan 6 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Why should jockey dont rub with wire in potentiometer

Posted by Dil Bag 6 years, 3 months ago

CBSE > Class 12 > Physics

3 answers

Pankaj Chadda 6 years, 3 months ago

Jockey should not be rubbed because if rub ,it will change the cross-sectional area of potentiometer wire which will not provide accurate reading then.

0Thank You

Lohit Gana 6 years, 3 months ago

Because jockey decide the flow of current in potentiometer

0Thank You

Aman Kumar 6 years, 3 months ago

Becz rubbing jockey with wire gives the error in reading..?

0Thank You

ANSWER

What is Stationary point

Posted by Abhijeet Singh 6 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Sia ? 6 years, 3 months ago

Stationary point is a point on a curve where the gradient is zero.

1Thank You

ANSWER

Define drift velocity. Write it's relation in terms of current

Posted by Niharika Kapil 6 years, 3 months ago

CBSE > Class 12 > Physics

2 answers

Ujjwal Kumar 6 years, 3 months ago

Every conductor contain number of free electron which move inside the conductor in random motion. The random motion of electron due to internal energy . Vd=eET/m;(T=taw shows relaxation time)

0Thank You

∂Αяѕнαиαα ყα∂Αѵ ??? 6 years, 3 months ago

Drift velocity is the velocity with which electrons are drifted from one terminal to another terminal on applying potential difference Vd. Relation between drift velocity in terms of current I= neAVd

2Thank You

ANSWER

Two positive charges have the sum of the charges to be 9c and repel each other with a force of 18N. If their distance of seperation be 0.1m,find the magnitude of the charges

Posted by Idaiabatishwa Mawlong 6 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

All derivation of chapter 1st physcis

Posted by Mithilesh Singh 6 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Which topic I would choose for my physics investigatory project for board exams?? Suggest me.

Posted by Pranjal Patel 6 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Gurman Kaur 6 years, 3 months ago

Logics gate is good option

1Thank You

ANSWER

isothermal expansion

Posted by Alina Zainab 6 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Any 20 MCQ OF first chapter Electric Charges And Fields

Posted by Abhishek Sandhu 6 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Aman Kumar 6 years, 3 months ago

U will get on google..

0Thank You

ANSWER

Ordinary rubber is an insulator but a special rubber tyres of aircraft are made slightly conducting. Why is this necessary

Posted by Nisha Choudhary 6 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Kavish Gaur 6 years, 3 months ago

Bcoz when aircraft lands the tyres become highly charged due to friction ...so if the tyres are slightly conducting they will loose their charge to earth ...and prvent spark

1Thank You

ANSWER

Why Image formed by a plane mirror is always erect?

Posted by Amarjit Hore 6 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Pankaj Chadda 6 years, 3 months ago

Because image formed by plane mirror is virtual and virtual image is always erect.

0Thank You

ANSWER

Why electric field lines are continuous curves. And why they can't have sudden breaks

Posted by Aman Jindal 6 years, 3 months ago

CBSE > Class 12 > Physics

2 answers

Ujjwal Kumar 6 years, 3 months ago

Electric field lines are continuous curve because electron moves continuously and it doesn't jump one point to another point so,curve is continuous

0Thank You

Gaurav Seth 6 years, 3 months ago

An electrostatic field line is a continuous curve because a charge experiences a continuous force when traced in an electrostatic field. The field line cannot have sudden breaks because the charge moves continuously and does not jump from one point to the other.

3Thank You

ANSWER

explain how mass of body cjanges during by friction in microscopic level

Posted by Sumit Kumar 6 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Sia ? 6 years, 3 months ago

Since we know that charging of a body depends upon transfer of electrons. So, if a body becomes negatively charged it will gain electrons that is its mass will increase and if a body becomes positively charged it loses electrons hence its mass will decrease.

1Thank You

ANSWER

Terminal potential difference

Posted by Sarthak Vyom 6 years, 3 months ago

CBSE > Class 12 > Physics