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Posted by Royal Thakur 3 years, 9 months ago

CBSE > Class 12 > Physics

5 answers

Ranger King 3 years, 8 months ago

Aur royal thakur bhai

Aseem Mahajan 3 years, 8 months ago

How do you feel now

Royal Thakur 3 years, 9 months ago

??? it's incredible ?

Aseem Mahajan 3 years, 9 months ago

<iframe width="324" height="198" src="https://www.youtube.com/embed/uD4izuDMUQA" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>

Aseem Mahajan 3 years, 9 months ago

<font face="Times New Roman"> Absolute refractive index is a quantity that is directly related to optical density of a medium and is given by ratio of speed of light in vacuum to that in the medium

ANSWER

An object is placed in front of a concave mirror of focal length of 12 cm. There are two possible positions of the object for which the image formed is three times the size of the object. (a) Draw the ray diagram for the each case, and (b) Find the distance between the two positions of the object

Posted by Arpan Singh 3 years, 9 months ago

CBSE > Class 12 > Physics

1 answers

Aseem Mahajan 3 years, 9 months ago

The 2 positions can be; one between C and f, other between f and P . Proceed to do.

ANSWER

Define Electric flux and prove guass law using coulomb law

Posted by Mayank Ishu 3 years, 9 months ago

CBSE > Class 12 > Physics

1 answers

Ram Kumar 3 years, 9 months ago

Guass law 1/eo of total charge

ANSWER

Advantage or application of heating effect

Posted by Veronica Zou 3 years, 9 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

U= -PE Cos

Posted by Zeyro Hk 3 years, 9 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

What is virtual value..?

Posted by Sruthe Shre 3 years, 9 months ago

CBSE > Class 12 > Physics

2 answers

Aseem Mahajan 3 years, 9 months ago

Rms value

Sruthe Shre 3 years, 9 months ago

The effective value or the RMS value is also called as virtual value.

ANSWER

Can two electric field lines of opposite charges intersect?

Posted by Gautam Chand 3 years, 9 months ago

CBSE > Class 12 > Physics

3 answers

Sruthe Shre 3 years, 9 months ago

They repel but not attracted and can't intersect

Aseem Mahajan 3 years, 9 months ago

They contract but don't intersect

Satyam Satyam 3 years, 9 months ago

Never

ANSWER

Cbse sample paper term 1 solution

Posted by Abhishek Gupta 3 years, 9 months ago

CBSE > Class 12 > Physics

1 answers

Aseem Mahajan 3 years, 9 months ago

Available

ANSWER

write a note on velocity selector?

Posted by Soundarya G M Soundarya G M 3 years, 9 months ago

CBSE > Class 12 > Physics

1 answers

Kaira J 3 years, 9 months ago

Velocity selector:- V = E/ B If the velocity of electron is v, such that v= e/b, then e- will pass undeflected through E and B. It happens when Fe and Fm cancel out each other.

ANSWER

Two point charge +8q and -2q are located at x=0 and x=l respectively the point on x- axis at which net electric field is zero due to these charge is

Posted by Ayushi Baghel 3 years, 9 months ago

CBSE > Class 12 > Physics

1 answers

Aseem Mahajan 3 years, 9 months ago

2L

ANSWER

Calculate the electrix flux linked with the side of a square 0.25

Posted by Sec-A /07 3 years, 10 months ago

CBSE > Class 12 > Physics

1 answers

Aseem Mahajan 3 years, 10 months ago

Incomplete

ANSWER

Alternative method

Posted by Riya Kewart 3 years, 10 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Can n be negative in q = ne?

Posted by Gautam Chand 3 years, 10 months ago

CBSE > Class 12 > Physics

5 answers

Aseem Mahajan 3 years, 9 months ago

No. That +- is due to charge e only. n is only a natural number. Think that how much charge do 5 electrons have ? If you take q = +-5e, its both positive or negative and you know very well its negative as e is negative. So n cannot be negative that negative can be due to charge

Sher Singh 3 years, 9 months ago

Q=+- ne ,. So n may be negative

Mayank Sharma 3 years, 9 months ago

By reading quantization of charge it's given that n is positive or negative

Mayank Sharma 3 years, 9 months ago

Yes

Aseem Mahajan 3 years, 10 months ago

No. e can be only

ANSWER

When a 6V is connected to a parallel plate capacitor 12microC charge is collected on the plates of the capacitor with air as dielectric medium. If air is replaced by a medium of dielectric constant 5.7 , find the charge collected by the capacitor and also the energy stored in it

Posted by Praful Kayi 3 years, 10 months ago

CBSE > Class 12 > Physics

1 answers

Aseem Mahajan 3 years, 10 months ago

Q = q(1 -1/k) = 9.84 mC
Energy = 1/2 VQ = 1/2 × 6 × 9.84 = 29.52

ANSWER

Why we use close integral ?

Posted by Abhinandan - 3 years, 10 months ago

CBSE > Class 12 > Physics

2 answers

Sher Singh 3 years, 10 months ago

For closed surface

Aseem Mahajan 3 years, 10 months ago

For closed sufrace in gauss law and ampere's law

ANSWER

What is the EMI ❓❓

Posted by Sachin Gahlyan 3 years, 10 months ago

CBSE > Class 12 > Physics

2 answers

Sher Singh 3 years, 10 months ago

Electro-magnetic induction

Vikas Chaudhary 3 years, 10 months ago

Electromagnetic induction

ANSWER

If the electric current in a lamp decrease by 5 percent then the power output decreases by_

Posted by Nikita Choudhary 3 years, 10 months ago

CBSE > Class 12 > Physics

5 answers

Nikita Choudhary 3 years, 10 months ago

Thanx

Aseem Mahajan 3 years, 10 months ago

Rrplace the values of dI/I × 100 from 100 to 5. Then it becomes 2 × 5 = 10%

Aseem Mahajan 3 years, 10 months ago

P = I²R
logP = 2logI + logR
Differentiating
dP/P = 2 dI/I + dR/R
dP/P × 100 = 2 dI/I × 100 + dR/R × 100
dP/P × 100 = 2× 100 = 200%
11 class concept used

Abir Mahato 3 years, 10 months ago

Can you elaborate how

Aseem Mahajan 3 years, 10 months ago

10%

ANSWER

Tern 1 syllabus

Posted by Karthik Mg 3 years, 10 months ago

CBSE > Class 12 > Physics

2 answers

Aseem Mahajan 3 years, 10 months ago

Chapter 1 to 7

Sm Study Kulwinder Kaur 3 years, 10 months ago

Electrostatics Electric potential and capacitors Current electricity Magnetic effects of current Magnetic dipole and Earth's magnetism Electromagnetic induction Alternating current

ANSWER

How to get 35 out of 35 in two day study of physics

Posted by Aditya Saraswat 3 years, 10 months ago

CBSE > Class 12 > Physics

4 answers

Nikita Choudhary 3 years, 10 months ago

Only guess not possible

Aseem Mahajan 3 years, 10 months ago

Not possible in 2 day study

?Tamanna ?? 3 years, 10 months ago

Omg???????......yr ye sb post krne se acha pdai kro.....full concentration k sath apne ap aa jaege good marks....iss post ki jgh ap koi ques puch skte thee jisse apko hlp milti....vaise agr luck acha hoga to 35 out of 35 bh aa jaege?

Aseem Mahajan 3 years, 10 months ago

Pray to God

ANSWER

Parallel and series combination resistance chapter 3 m se kat gya kya ?

Posted by ⭐White Wolf⭐ 3 years, 10 months ago

CBSE > Class 12 > Physics

1 answers

Aseem Mahajan 3 years, 10 months ago

No

ANSWER

Factors affecting the resistivity are

Posted by ⭐White Wolf⭐ 3 years, 10 months ago

CBSE > Class 12 > Physics

3 answers

Shashi Rajpoot 3 years, 10 months ago

NAND??

Tajinder Singh 3 years, 10 months ago

try: do_something() except: winsound.Beep(440, 1000)

Aseem Mahajan 3 years, 10 months ago

$$\rho = \dfrac{m}{ne^2 \tau}$$
m = mass of conductor
n = number density of charge carriers
e = charge on electron $$\tau$$ = relaxation time
Thus it depends on temperature, material.

ANSWER

proton discovered

Posted by Yogendra Singh 3 years, 10 months ago

CBSE > Class 12 > Physics

4 answers

?Tamanna ?? 3 years, 10 months ago

Ernest Rutherford

Narendrakumar K 3 years, 10 months ago

Paru

Narendrakumar K 3 years, 10 months ago

Aanaku therium nee pooi velaya

Seema Ladwal 3 years, 10 months ago

Proton discovered by Rutherford in 1909

ANSWER

Newton

Posted by Mr Taufique 3 years, 10 months ago

CBSE > Class 12 > Physics

1 answers

Seema Ladwal 3 years, 10 months ago

He was an english mathematician, physicist,and most influential scientist of all time

ANSWER

Which is the best book for numericals in physics for term 1

Posted by Suhani Rana 3 years, 10 months ago

CBSE > Class 12 > Physics

5 answers

Mayank Sharma 3 years, 9 months ago

Arihant

Sher Singh 3 years, 10 months ago

Pradeep and sl Arora is best

Atharva Verma 3 years, 10 months ago

Pradeep is best ?

Nawal Kishore Jha 3 years, 10 months ago

Sl arora

Yuvraj Singh 3 years, 10 months ago

Concept of Physics by HC Verma

ANSWER

Induction furnace is used to produce by....

Posted by Priyanshu Kumar 3 years, 10 months ago

CBSE > Class 12 > Physics

2 answers

Priyanshu Kumar 3 years, 8 months ago

Thanks punitha

Punitha K 3 years, 10 months ago

Eddy current

ANSWER

When light comes from air to glass , the refracted ray is bend towards the normal why?

Posted by Sarda Tingneithiem 3 years, 10 months ago

CBSE > Class 12 > Physics

2 answers

?Tamanna ?? 3 years, 10 months ago

Refraction of Light: as it passes from less dense to more dense mediums. When light passes from a less dense to a more dense substance, (for example passing from air into water), the light is refracted (or bent) towards the normal. ... The bending occurs because light travels more slowly in a denser medium. According to snell's law, Sin i / sin r

Nek Singh Yadav 3 years, 10 months ago

Refrective index of glass(1.5) which is more than air(1.0) ,so velocity of light is less than that in air hence light ray bends towards normal.

ANSWER

Current through shunt???

Posted by Pragya Sonare 3 years, 10 months ago

CBSE > Class 12 > Physics

1 answers

Vyom Patel 3 years, 10 months ago

Shunt is a low resistence , due to which the entire current will flows through the shunt and will generate potential drop

ANSWER

SI unit of permittivity?

Posted by Golu Yadav 3 years, 10 months ago

CBSE > Class 12 > Physics

4 answers

Karishma Yadav 3 years, 10 months ago

Nm/c

Kunishka Yadav 3 years, 10 months ago

The standard SI unit for permittivity is farad per meter (F/m or F·m−1).

Nek Singh Yadav 3 years, 10 months ago

Coulomb square/newton×metre square

Vyom Patel 3 years, 10 months ago

Farad per metre

ANSWER

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Posted by Aseem Mahajan 3 years, 10 months ago

CBSE > Class 12 > Physics

1 answers

Aseem Mahajan 3 years, 10 months ago

The real fate of everything

ANSWER

Whai is LC oscillation (qualitative treatment only)

Posted by Nidhi Kashyap 3 years, 10 months ago

CBSE > Class 12 > Physics

2 answers

Abhishek Kumar 3 years, 10 months ago

The electric current and the charge on the capacitor in the circuit undergo electrical LC oscillations when a charged capacitor is connected to an inductor. The electrical energy stored in the capacitor is its initial charge which is named as qm.

Kunal Jadhav 3 years, 10 months ago

Matlab..kuch bhi

ANSWER

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