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How I get good marks in physics? Because I m very weak in physics..... Plz tell me

Posted by Tanvi Yadav 6 years, 11 months ago

2 answers

Ash Thunderbird ✔ 6 years, 11 months ago

I don't think you'll be worse than me. I was a student who got passing marks in Physics. But after mid-terms this year, I started to pay attention. Last test I got 42/70. Bottom line, meri lg gyi thi mgr maine wapsi ki! How? Well, study selected chapters (i skipped AC and a few topics of magnetism), go through Arihant Chapterwise Solutions (2018-2009) (i can't tell how much this book helped me ?) and yes, NCERT too — afterall it's the holy book for students. And you guessed it right by now, my english is good! ? (P.S. Any student that reads this, lg jao abhi se, hamare paas samay h abhi, sbki lga denge. Attitude and Approach is everything!)

9Thank You

Mansi Sharma 6 years, 11 months ago

Solve the sample papers and last 10 years papers . And do learn all the theory and then numericals .

3Thank You

ANSWER

Please tell me. How to read physics

Posted by Shashank Shukla 6 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Ash Thunderbird ✔ 6 years, 11 months ago

You cannot read Physics. You can understand its concepts!

1Thank You

ANSWER

Is it true that previous year questions will repeated in examination??????

Posted by Tanvi Yadav 6 years, 11 months ago

CBSE > Class 12 > Physics

2 answers

Navya Singh 6 years, 11 months ago

Some ques are also Latest sample papers by cbse ....u should also solve that

1Thank You

Mansi Sharma 6 years, 11 months ago

Not always , but may be it is possible . Not only from a last year paper it is from last 8 to 10 years paper .

4Thank You

ANSWER

disscuss sparkling of diamond

Posted by Ashish Sharma 6 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Ishan Rana 6 years, 11 months ago

TIR

2Thank You

ANSWER

Why image is only formed in the mirror?

Posted by Dawa Doma Sherpa 6 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Rajan Gupta 6 years, 11 months ago

Because in mirror , there is a backwad polish coating of silver . That's why all light get reflected and we get a good image due to good intersection of light.

1Thank You

ANSWER

Why light travels from transparent object?

Posted by Dawa Doma Sherpa 6 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Rajan Gupta 6 years, 11 months ago

Light is EM wave . It requires magnetic field and electric field to propagate. It has property to penetrate glass object having 1.45 mu . Refraction property occur. But and silver coated there occurs only reflection.

1Thank You

ANSWER

someone have project of AND GATE CLASS12??

Posted by Ayush Jindal 6 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Ash Thunderbird ✔ 6 years, 11 months ago

Who is someone? I have the project though. ? (Activity still remains ?)

0Thank You

ANSWER

Doordarsi ki vibhedan chamta

Posted by Abhay Singh 6 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

A wire of resistance 8R is bent in the form of the circle. What is effective resistance between ends of diameter?

Posted by Shashikant Kumar 6 years, 11 months ago

CBSE > Class 12 > Physics

2 answers

Rajan Gupta 6 years, 11 months ago

Due to bending of wires it will produce a back EMF like inductor hence its resistance will slightly get increased

1Thank You

Aman Dubey 6 years, 11 months ago

1Thank You

ANSWER

How does the drift velocity of e's in a metallic conductor vary with increase in temperature?

Posted by Shashikant Kumar 6 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Rajan Gupta 6 years, 11 months ago

as we increase temperature the electrons inside the conductor get thermal energy and start to move in zigzag motion that's why it's resistivity get increased.

0Thank You

ANSWER

Is there anyone who has done the Physics practicals well and good and if he/she could help me regarding this?

Posted by Aryan Rai 6 years, 11 months ago

CBSE > Class 12 > Physics

2 answers

Aryan Rai 6 years, 11 months ago

Ok..thank you.. then I'll ask tomorrow.

0Thank You

Mansi Sharma 6 years, 11 months ago

I have done my all practicals ....i can help if u want

3Thank You

ANSWER

Can u suggest me the name of best guess paper of physics ?

Posted by Surbhi . 6 years, 11 months ago

CBSE > Class 12 > Physics

5 answers

Ishan Rana 6 years, 11 months ago

Osswal abt 60 to 65 marks ques. Come from Osswal sp

2Thank You

Nisha Singh 6 years, 11 months ago

Arihant

2Thank You

Navya Singh 6 years, 11 months ago

Arihant is best

2Thank You

Yo Yo Honey Singh ? 6 years, 11 months ago

Directly download CBSE previous year question paper it will be more better than guess paper

2Thank You

Rajendra Pratap 6 years, 11 months ago

Arihant

4Thank You

ANSWER

write the working principal of potentiometer?

Posted by Nisha Singh 6 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Ash Thunderbird ✔ 6 years, 11 months ago

If you want to compare the emf of two cells, then for a wire having uniform area of cross section and uniform composition, the potential drop is directly proportional to the length of wire.

4Thank You

ANSWER

explain the direction of flow of current in case of rectangular motional EMF

Posted by Guruvansh Bhayana 6 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

What is coloumbs law

Posted by Harsh Vishwakarma 6 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Navya Singh 6 years, 11 months ago

It states that the force between two point bodies at rest is directly proportional to their charges and inversely proportional to square of distance between them

2Thank You

ANSWER

What are the important derivations for boards 2019?

Posted by Anshika Arora 6 years, 11 months ago

CBSE > Class 12 > Physics

2 answers

Rajendra Pratap 6 years, 11 months ago

Coulomb’s law of Electrostatics ( Normal Derivation & Vector Derivation F21=- F12) 3 - Superposition Principal in Electric Field Intensity 7 Note : Electric Lines of force and it’s properties is very important 8 - Electric field intensity of a dipole at tanA/ Equatorial position 10 - Electric field intensity of a dipole at tanB/ Axial position 11 - Electric field intenisty at any point due to an ideal dipole 12 - Force and torque acting on a dipole in an external uniform electric field 13 - Work done to rotate a dipole in external electric uniform field 14 - Gauss Theorem : It’s definition, verificaiton and application 17 - Electric field intensity due to a thin uniformly charged infinite plane sheet 19 - Electric field intensity due to a uniformly charged spherical shell 20 - Electric Potential at a point due to a point charge 22 - Prove electric field is conservative in nature 25 - Capacitance of a parallel plate capacitor 29 - Capacitance of a single and concentric sphere 30 - Energy stored in a capacitor 31 - Series and Parallel Combination of Capacitors 33 - Effect of dieletric medium on the capacitance of parallel plate capacitor

4Thank You

Ash Thunderbird ✔ 6 years, 11 months ago

There are a lot. I'm too lazy to write all of that...

2Thank You

ANSWER

How can i score 70/ 70 in boards

Posted by Raj Yadav 6 years, 11 months ago

CBSE > Class 12 > Physics

4 answers

Rajendra Pratap 6 years, 11 months ago

Previous years question papers of cbse

1Thank You

Divyansh Rathore 6 years, 11 months ago

Also do previous year questions

0Thank You

Navya Singh 6 years, 11 months ago

Ncert is not sufficient for phy ..u should follow ncert only for numerical. Otherwise do arihant book ...it is good one

1Thank You

Abc Kamboz 6 years, 11 months ago

Just solve ncert ques and go thoroughly with ncert textbooks

0Thank You

ANSWER

What will be the result, if a student connects voltmeter in series and ammeter in parallel in a circuit by mistake?

Posted by Ashish Srivastaw 6 years, 11 months ago

CBSE > Class 12 > Physics

4 answers

Yo Yo Honey Singh ? 6 years, 11 months ago

Simply it will show in correct reading and you will not be able to find correct reading understand

1Thank You

Vartika Singh Sengar 6 years, 11 months ago

Wrong reading Because voltage can be determined in parallel combination as it's constant there hence voltmeter must be connected in parallel Whereas, Current is determined in series therefore ammeter must be connected in series . Also we know in parallel due to less resistance , ammeter will allow more current to pass due to which it can suffer shot circuit. ?? nice question

2Thank You

Aryan Rai 6 years, 11 months ago

They will show wrong reading

1Thank You

Tamanna Sharma 6 years, 11 months ago

Short circuit may happen

3Thank You

ANSWER

What is super conductivity

Posted by Danish Malik 6 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Yogita Ingle 6 years, 11 months ago

Superconductivity is the ability of certain materials to conduct electric current with practically zero resistance . This capacity produces interesting and potentially useful effects. For a material to behave as a superconductor, low temperatures are required. Superconductivity was first observed in 1911 by H. K. Onnes, a Dutch physicist.

2Thank You

ANSWER

Lenard's observation

Posted by Surabhi Tiwari 6 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Rajendra Pratap 6 years, 11 months ago

Search on Google or on YouTube

0Thank You

ANSWER

Using postulates of Bohr’s theory of hydrogen atom, show that i) Radii of orbits increases as n^2 (ii) the total energy of electron increases as 1/n^2, where n is the principal quantum number of the atom

Posted by Pratham Kaushik 6 years, 11 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

define the term mobility of charge carrier in a conductor. writes in si unit

Posted by Kajal Sharma 6 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Yogita Ingle 6 years, 11 months ago

Drift velocity per unit applied electric field is known as the mobility of charge carriers in a conductor.
Mathematically,
Mobility = Drift velocity / Electric field = Vd/E
SI unit of mobility = m²V^-1s^_1 or Ms^-1N^-1C

0Thank You

ANSWER

Project on CBE transistor characteristics

Posted by Divya Yugesh 6 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Santoshee Prajapati 6 years, 11 months ago

I too wants project on transformer

0Thank You

ANSWER

What is the principal of supper position

Posted by Vikas Dixit 6 years, 11 months ago

CBSE > Class 12 > Physics

2 answers

Yogita Ingle 6 years, 11 months ago

The principle of superposition of waves

Principle of superposition of waves describes how the individual waveforms can be algebraically added to determine the net waveform.
Waveform tells about the overall motion of the wave.It does not tell about individual particles of the wave.

0Thank You

Nikhil Jha 6 years, 11 months ago

If the system contains a number of interacting charge,then the force on a given charge is equal to the vector sum of the force exerted on it by all remaining charge.

1Thank You

ANSWER

Short notes on all chapters

Posted by Aman Ithappiri 6 years, 11 months ago

CBSE > Class 12 > Physics

2 answers

Navya Singh 6 years, 11 months ago

Search on u tube ...notes of aman dhattarwal are good ...or u can also refer to vedantu on Google

1Thank You

Ash Thunderbird ✔ 6 years, 11 months ago

Sathiya gye ho ka ? Ye yaha nhi google pe search kro!

0Thank You

ANSWER

A beam of light consisting of two wavelengths 800 nm and 600 nm is used to obtain the interference fringes in the YDSE on a screen placed 1.4 m away. if the two slits are separated by0. 28 mm, calculate the least distance from the central bright maximum where the bright fringes of the two wavelengths coincide.

Posted by Somya Duhan 6 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

Somya Duhan 6 years, 11 months ago

???question is long but try to solve. CBSE important.???

0Thank You

ANSWER

The intensity at central maxima in YDSE is I°. Find out the intensity at a point where path difference is x/6,x/4,x/3. Here x means lambda.

Posted by Somya Duhan 6 years, 11 months ago

CBSE > Class 12 > Physics

1 answers

H!Mαη$Hμ Ұαδαυ ✔️ 6 years, 11 months ago

As you know the path diff. Calculate phase diff. ¢=(2π×∆¶)/¶ , ¶ is lambda.....then use another formula i.e., I=I○[cos^2(¢/2)]....

1Thank You

ANSWER

Using the concept of force between two infinitely long parallel current carrying conductor, define one Ampere of current

Posted by Janvi Khokar 6 years, 11 months ago

CBSE > Class 12 > Physics

2 answers

H!Mαη$Hμ Ұαδαυ ✔️ 6 years, 11 months ago

It is easy you must refer book

0Thank You

Gyandeep Srivastava 6 years, 11 months ago

book me dekh lo

0Thank You

ANSWER

What is the linear charge distribution and volume charge distribution

Posted by Kunal Mishra 5 years, 8 months ago

CBSE > Class 12 > Physics

1 answers

Mateen Chauhan 6 years, 11 months ago

linear charge =It is define as the amount of charge distributed per unit length in one dimension . Lambda =q/l Si unit = c/meter Volume charge = It is defined as the the ratio of amount of charge in per unit volume in three dimension. Rho= q/v ?

0Thank You

ANSWER

Two identical circular loops '1' and '2' of radius R is have linear charge density - Lambda and + Lambda c/m respectively. The loops are placed coaxially with their centres R√3 distance apart. Find the magnitude and direction of the net electric field at the centre of loop '1'.

Posted by Kumar Mangalam 6 years, 11 months ago

CBSE > Class 12 > Physics