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

A rectifier is an electrical device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction. The process is known as rectification

2Thank You

Bhumi Jain 7 years, 11 months ago

We use rectifier

1Thank You

ANSWER

What happen with fringe width if we replace monochromatic light by white light. Explain

Posted by Ujjawal Sharma 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Ujjawal Sharma 7 years, 11 months ago

A 7 coloured band is seen, with uneven f.w.

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ANSWER

What is the unit of capacitance?

Posted by Apurv Singh 7 years, 11 months ago

CBSE > Class 12 > Physics

4 answers

Divya Sen 7 years, 11 months ago

Yes plz tell if there is any?

0Thank You

Bhumi Jain 7 years, 11 months ago

Ujjwal is there any graph related to this

1Thank You

Abc Efg 7 years, 11 months ago

Good ujjwal keep it up

0Thank You

Ujjawal Sharma 7 years, 11 months ago

Farad

1Thank You

ANSWER

Explain how radioactive nuclei can emit beta particles even though atomic nuclei don't contain these particles

Posted by Sukh Dhaliwal 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Is we measure the reading of DC current in a circuit in which a resistor, inductor and capacitor attach in series and ammeter also series after capacitor

Posted by Ujjawal Sharma 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Draw magnetic field lines in a solenoid when rod of 1.copper 2.aluminium 3.iron is inserted in a solenoid

Posted by Bella S 7 years, 11 months ago

CBSE > Class 12 > Physics

2 answers

Bhumi Jain 7 years, 11 months ago

1Thank You

Abc Efg 7 years, 11 months ago

You tell me.. how to draw a graph here

1Thank You

ANSWER

A capacitor of 200pF is charged by 300V battery. Then battery is removed and the charged capacitor is connected to another uncharged capacitor of 100pF. Calc. difference between final and initial energy. (Also mention EFFECTIVE CAPACITANCE)

Posted by Shahil Agrawal 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Ujjawal Sharma 7 years, 11 months ago

Final energy is half of initial energy

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ANSWER

If restivity is double what is the effect on temperature

Posted by Nitesh Kumar 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Ujjawal Sharma 7 years, 11 months ago

In what case, conductor or semiconductor

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ANSWER

which book best for board examination

Posted by Amit Yadav 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Abc Efg 7 years, 11 months ago

Ncert.. Read thoughly.. you will get best result

6Thank You

ANSWER

Practical notes

Posted by Aakash Kumar 7 years, 11 months ago

CBSE > Class 12 > Physics

2 answers

Bhumi Jain 7 years, 11 months ago

Komiii S nice rply???

1Thank You

Abc Efg 7 years, 11 months ago

Oh!! That's very good.. Now we will share our notes..here

1Thank You

ANSWER

Draw graph between v and u in 1/f=1/v-1/u

Posted by Ujjawal Sharma 7 years, 11 months ago

CBSE > Class 12 > Physics

48 answers

Ritu Gupta 7 years, 11 months ago

Okk, but i m still left wid 3 practicals more

0Thank You

Bhumi Jain 7 years, 11 months ago

Yes i have done all the practicals

0Thank You

Ritu Gupta 7 years, 11 months ago

Bhumi have you done all the practicals of chemistry??

0Thank You

Bhumi Jain 7 years, 11 months ago

I am from calcutta

0Thank You

Ritu Gupta 7 years, 11 months ago

My practicals are from next week and my pre boards are also there and i m from haryana. Where are you from?

0Thank You

Bhumi Jain 7 years, 11 months ago

When onwards ur practical starts

0Thank You

Bhumi Jain 7 years, 11 months ago

Ritu gupta u r from which place and to which school

0Thank You

Bhumi Jain 7 years, 11 months ago

It is delayed till 3 of feb.

0Thank You

Bhumi Jain 7 years, 11 months ago

Dates are not yet confirmed..

0Thank You

Ritu Gupta 7 years, 11 months ago

Bhumi jain when is ur practical??

0Thank You

Bhumi Jain 7 years, 11 months ago

Its ok Ritu

0Thank You

Ritu Gupta 7 years, 11 months ago

Ok bhumi jain. i did not know abt tht.

0Thank You

Bhumi Jain 7 years, 11 months ago

I think now you got that this app is not for asking to draw graph or diagram...

0Thank You

Bhumi Jain 7 years, 11 months ago

Ujjwal i am waiting for ans plzz give if u can't than plzz give reason

1Thank You

Bhumi Jain 7 years, 11 months ago

Ritu gupta i know the ans I only asked this question becoz ujjwal asked to put a question to him.I think if he asked for question so let him give the ans

0Thank You

Ujjawal Sharma 7 years, 11 months ago

No bhumi shape is again hyperbola

1Thank You

Ujjawal Sharma 7 years, 11 months ago

Yaa ,I really put up question

0Thank You

Ritu Gupta 7 years, 11 months ago

Bhumi jain check pg no. 141 in ncert for diagram of cyclotron.

0Thank You

Bhumi Jain 7 years, 11 months ago

What ok

0Thank You

Bhumi Jain 7 years, 11 months ago

I mean you really drawn diagram on copy

0Thank You

Bhumi Jain 7 years, 11 months ago

Plzz speak ujjwal

1Thank You

Bhumi Jain 7 years, 11 months ago

You really drawn diagram of copy????

1Thank You

Ujjawal Sharma 7 years, 11 months ago

0Thank You

Bhumi Jain 7 years, 11 months ago

Than before why you asked to draw the graph between v and u..it is also not possible na.

0Thank You

Ritu Gupta 7 years, 11 months ago

Pls ask that questions which are possible to answer here. How can anyone draw graph here?

0Thank You

Ujjawal Sharma 7 years, 11 months ago

Yes but I draw diagram on my copy. Put up question. If you not then give question answer

0Thank You

Bhumi Jain 7 years, 11 months ago

As you are interested to my questions ??

1Thank You

Bhumi Jain 7 years, 11 months ago

Plzz solve it

0Thank You

Bhumi Jain 7 years, 11 months ago

I gave already that draw the diagram of cyclotrone

0Thank You

Ujjawal Sharma 7 years, 11 months ago

Yes give question I m interesting for your question

0Thank You

Bhumi Jain 7 years, 11 months ago

I gave now plzz solve..hurry

0Thank You

Ujjawal Sharma 7 years, 11 months ago

Yes put up

1Thank You

Bhumi Jain 7 years, 11 months ago

Draw a well labelled diagram of cyclotrone.Now i gave the question plzz solve it

1Thank You

Ujjawal Sharma 7 years, 11 months ago

OK you put up some question to me

0Thank You

Divya Sen 7 years, 11 months ago

Ujjwal u must ask questns other than drawing of graphs or derivations 'cause it is impossible to solve it here?

0Thank You

Abc Efg 7 years, 11 months ago

Shure again he ask questions which have so many diagrams and dervation

1Thank You

Bhumi Jain 7 years, 11 months ago

You ask que

1Thank You

Abc Efg 7 years, 11 months ago

Yess I also know the answer

0Thank You

Bhumi Jain 7 years, 11 months ago

Haan i know ans

0Thank You

Abc Efg 7 years, 11 months ago

Now you need some more questions that have so many diagrams and dervation.. structure are there.. Tell me I will help you

0Thank You

Ujjawal Sharma 7 years, 11 months ago

Tumhe PTA h answer

1Thank You

Abc Efg 7 years, 11 months ago

Yess may it helps a lot to ujjwal..

1Thank You

Bhumi Jain 7 years, 11 months ago

Now i think Ujjwal got ans and thnx komii to tell pg no. Its helpful to me also

1Thank You

Abc Efg 7 years, 11 months ago

I was gave you on that day also...now also I m gving you search in SL Arora reference book.. Volume 2 in Ray optics chapter... may it will help you ujjwal

1Thank You

Bhumi Jain 7 years, 11 months ago

I am not joking???

1Thank You

Ujjawal Sharma 7 years, 11 months ago

Good joke

1Thank You

Bhumi Jain 7 years, 11 months ago

Komii S tell ujjwal book name with its page no.

1Thank You

Abc Efg 7 years, 11 months ago

How to draw graph here... You read from book That will help you a lot..

1Thank You

ANSWER

why stopping potantial is independent of intesty of light?

Posted by Sanjay Kumar 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

What is a diode and its working?

Posted by Deepanshu Kumar 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Define the term rms value of the current

Posted by Neeraj Bhatia 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Blue print of physics

Posted by Gaurav Raja 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

(a)Consider two different hydrogen atoms. The electron in each atom is in an excited state. Is it possible for the electrons to have different energies but same orbital angular momentum according to the Bohr model? Justify your answer. (b)If a proton had a radius R and the charge was uniformly distributed, calculate using Bohr theory, the ground state energy of a H – atom when R = 10 Ao .

Posted by Daljeet Kamboj 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Derivation of lens makers formula

Posted by Nitik Parwani 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Abc Efg 7 years, 11 months ago

How we do derivation here...

1Thank You

ANSWER

Is transistor as a switch is in our syllabus

Posted by Akash Singh 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Suzen Khan 7 years, 11 months ago

Yes

0Thank You

ANSWER

Uses of OR gate???

Posted by Anchal Sharma 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Integration of sinx/x

Posted by Harshit Tyagi 7 years, 11 months ago

CBSE > Class 12 > Physics

2 answers

Shivam Gupta 7 years, 11 months ago

Non integrable

1Thank You

Sweety Yadav 7 years, 11 months ago

Do it by ilate method or integration by parts

1Thank You

ANSWER

Why led fabricated

Posted by Harshit Tyagi 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Aman Patel 7 years, 11 months ago

Highly doping

0Thank You

ANSWER

Why electrons cannot be accelerate in a cyclotron?

Posted by Purvesh Jaiswal 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Why meter bridge is called so??

Posted by Abc Efg 7 years, 11 months ago

CBSE > Class 12 > Physics

2 answers

Abc Efg 7 years, 11 months ago

Thnk you

0Thank You

Bhumi Jain 7 years, 11 months ago

Becoz it is one meter long and works on the principle of wheat stone bridge

0Thank You

ANSWER

Plzz explain me this.... The amplitude of the carrier wave varies at the frequency of the modulating wave. So amplitude of the modulated wave is given by A=A(carrier wave) + A(modulated wave)sinwt

Posted by Shivani Rana 7 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Difference b/w diffraction and interference

Posted by Akash Kurmi 7 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Kamal Singh Rawat 7 years, 11 months ago

In diffraction the intensity of light on screen so not fixed and fringes width is not fixed. In interference the intensity of light is fixed and fringes width is fixed.

3Thank You

ANSWER

draw a and gate circuit with label

Posted by Neeraj Rajak 7 years, 11 months ago

CBSE > Class 12 > Physics