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TIR Conditions.....using snell's law....????????derivation..???

Posted by D. Gautham 2 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

Anjan Karthi 2 years, 5 months ago

So, the derivation begins with the definition for critical angle for a particular medium which is defined as the angle of incidence from a particular medium at the interface above which the refracted ray gets reflected internally (TIR) to the same medium without any loss of energy. At critical angle, <r = 90°. Therefore, refractive index of air with respect to medium n = sin <i / sin < r = sin c / sin 90° = sin c. Therefore, refractive index of medium = (sin C) ^-1.

ANSWER

Two point charges of + 10 microcoulomb and + 40 microcoulomb respectively are placed 12 CM apart find the position of the point where electric field is zero

Posted by Karan Dabi 2 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

Anjan Karthi 2 years, 5 months ago

kQ1/x ^2 = kQ2/(12-x) ^2 . 10^-5/x^2 = 4 × 10^-5 / (12-x) ^2. 12-x/x = √4 = 2. x = 4 cm.

ANSWER

If the electric field is given by E=8î + 4j^ + 3k^ NC¹, Calculate the electric flux through a surface of area 100m² lying in the X-Y plane.

Posted by Harshit Rathee 2 years, 5 months ago

CBSE > Class 12 > Physics

2 answers

Kinshuk Sen 2 years, 5 months ago

E = 8i^ + 4j^ + 3k^ A = 100 X-Y plane = i^ direction Φ = E•A (Dot Product) Φ = (8i^ + 4j^ + 3k^)•(100i^) Φ = 800 +0 +0 Φ = 800 Nm/C

Aseem Mahajan 2 years, 5 months ago

<font face ="Times New Roman">XY plane has area vector in Z direction so you just need z component of electric filed and apply standard formula,
$$\rm \phi = E_{z} A$$

ANSWER

The shape of the interference fringes in young double slit experiment when D is very large as compared to fringe width

Posted by Anmolpreet Singh 2 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

Anjan Karthi 2 years, 5 months ago

Hyperbolic.

ANSWER

Who follower is growing up in the soile.

Posted by Bhairavarapu Namrutha 2 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

What is the belle milk

Posted by Bhairavarapu Namrutha 2 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

What is motion in stomake

Posted by Bhairavarapu Namrutha 2 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

Ajay Kumar Moond 2 years, 5 months ago

Peristalsis movement in stomach

ANSWER

How many barne in the human body

Posted by Bhairavarapu Namrutha 2 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

Gunjan Patil 2 years, 5 months ago

206

ANSWER

What is human Life World

Posted by Bhairavarapu Namrutha 2 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Three identical bodies A, B &C carries charge +q , -q and 0 respectively. Find final charge on all of them

Posted by Raza Khan 2 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

Anshul Pratap Singh 2 years, 4 months ago

0 ,if they touch each other

ANSWER

What is electrostatic potential??

Posted by Account Deleted 2 years, 5 months ago

CBSE > Class 12 > Physics

3 answers

Aseem Mahajan 2 years, 5 months ago

<font face ="Times New Roman"><i>Irony and sarcasm shouting from the corner

Ruhana Parvin 2 years, 5 months ago

The amount of work done to move a unit charge from a reference point to a specific point inside the field without producing an acceleration.

Account Deleted 2 years, 5 months ago

Hahaha nice joke ..

ANSWER

Electric field in sheet due to point charge

Posted by Nasir Hussain 2 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

Anshul Pratap Singh 2 years, 4 months ago

Sigma/ €°

ANSWER

Coluambs Law

Posted by Ankit Kumar 2 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

Donald Dandasena 2 years, 5 months ago

Coulomb law state that the force of attraction or repolestion between two stationary point charges is directly propersnal to the product of magnitude of the 2 charges and inversely perposnal to square of the distance between them

ANSWER

Who is called father of Indian Physics?

Posted by Basant Pandey 2 years, 5 months ago

CBSE > Class 12 > Physics

3 answers

Anshul Pratap Singh 2 years, 4 months ago

Sir CV Raman

Mannat Thukral 2 years, 5 months ago

Isaac newton

Jaspreet Kaur 2 years, 5 months ago

Homi jehangir bhabha

ANSWER

Appoint charge is kept at the centre of a cube then determine electric flux passing through the _ the cube , one face, 2 opposite face

Posted by Khushi Tiwari 2 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Show that guass law in electrostatic is the valid for any type shape of close sphere

Posted by Khushi Tiwari 2 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Show that electric flux passing through any close surface is independent from surface area

Posted by Khushi Tiwari 2 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Surface tension unit n/ m '2 explain and proof

Posted by Anjali Khandalkar 2 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

Anjan Karthi 2 years, 5 months ago

Surface tension is a property of a liquid that makes it behave as if its surface is enclosed in an elastic skin. So, being a "surface" property, we often consider calculating it as the responsive force exerted by the surface molecules of the fluid along A UNIT LENGTH of the surface where the impact of external force is seen. So, surface tension S is F/L which, in SI units, is N/m and it's dimensions are [MT^-2]. Hope it was useful !!!!

ANSWER

Positive q charge is placed on each vertices of square . What is the net force acting on point C

Posted by Shrestha Kumar Verma 2 years, 5 months ago

CBSE > Class 12 > Physics

3 answers

Arbind Dada 2 years, 5 months ago

[email protected]

Akanksha. Nain 2 years, 5 months ago

Zero

Akansha Bisht 2 years, 5 months ago

I) Assuming C is in the middle Therefore no net force II) Assuming C is at the corner F net= √2 F + F/√2 F = kq²/a. (assuming a is the sides of the square)

ANSWER

Father of physics..?

Posted by Account Deleted 2 years, 5 months ago

CBSE > Class 12 > Physics

5 answers

Account Deleted 2 years, 5 months ago

Is it your id ?

Aseem Mahajan 2 years, 5 months ago

<font face ="Times New Roman">Nai

Account Deleted 2 years, 5 months ago

Oh I didn't saw 🤦🏻‍♀️... I don't use insta and currently I am not active on tele to ...tell me yours tele I'd I will text you whenever I will be active in that space ...

Aseem Mahajan 2 years, 5 months ago

<font face ="Times New Roman">When I asked your insta/tele

Account Deleted 2 years, 5 months ago

When did I ignored you ?

ANSWER

Pl explain variation of physics

Posted by Priya Rai 2 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

What is meant by continuous charge distribution? Apply superposition principle to obtain total force on a point charge due to continuous line distribution of charge, continuous surface distribution of charge and continuous volume distribution of charge.

Posted by Lakshita 💜 2 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

Jaspal Sidhu Sidhu 2 years, 5 months ago

Extremely closed space charges form continuous charge distribution

ANSWER

The potential difference between two points is 20 v how much work will be done in carrying charge of 400 myu c from one to the another

Posted by Toral Ojha 2 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

Anjan Karthi 2 years, 5 months ago

W = qV = 20 × 400 × 10^-6 = 8000 × 10^-6 = 8 mJ. //

ANSWER

THE MAGNITUDE OF ELECTRIC FORCE ON 2UC CHARGE PLACED AT THE CENTRE OF TWO EQUILATERAL TRIANGLES EACH OF SIDE 10CM AIS P .FIND P

Posted by Ankit Parida 2 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Notes of Ch 1

Posted by Krishna Tyagi 2 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

Bhavyansh Sharma 2 years, 5 months ago

Notes

ANSWER

Under what condition a neutral body is attracted towards a charged body

Posted by Samiksha Gautam 2 years, 6 months ago

CBSE > Class 12 > Physics

1 answers

Satya Swaroop . 2 years, 6 months ago

This happens during induction.Say the charged body is with positive charge. When a neutral boday is brought close enough to this positively charged body, such that it is in charged body's Electric field, there is a development of negative charge on the side of the neutral body which is facing the charged body. This makes the neutral body get attracted to charged body.

ANSWER

In the Bohr model of hydrogen atom the electrons circulates around the nucleus in a path of radius 5.1x10-¹¹ m at a frequency 6.8x10¹⁵ revolution/sec . Calculate the equivalent current

Posted by Shreesha Naik 2 years, 6 months ago

CBSE > Class 12 > Physics

2 answers

Anjan Karthi 2 years, 5 months ago

Now, if frequency is not given and velocity is, then there is a long way we have to go. T = 2πR/v, and then I = q/t = qv/2πR.

Anjan Karthi 2 years, 5 months ago

This appears to be a bit difficult, but no worries, there is always a solution in the question itself. We must find current which is I = q/t, and we know 1/T = υ. We know q = e = 1.602 × 10^-19 C. So, in that case, I = eυ.

ANSWER

A body has a charge of 64×10^-17C. Find the no. of electrons missing from the body.

Posted by Yasmin Sultana 2 years, 6 months ago

CBSE > Class 12 > Physics

1 answers

Satya Swaroop . 2 years, 6 months ago

Q=n×e So n = 64×10^-17/1.6×10^-19 Solve for answer

ANSWER

Consider a particle having charge 3.2×10 to the power -19 situated in an electric field of value 4000 N/C . calculate the value of force acting on the charges

Posted by Account Deleted 2 years, 6 months ago

CBSE > Class 12 > Physics

2 answers

Aseem Mahajan 2 years, 6 months ago

<font face ="Times New Roman">F = qE
F = 3.2 × 10^-19 C × 4000 N/C
F = 1.28 × 10^-15N

Ritesh Meena 2 years, 6 months ago

1.28*10ki power minus 15

ANSWER

Calculate the gravitational force between two electrons separate at a distance 1cm.

Posted by Gunjan Sharma 12Th 2 years, 6 months ago

CBSE > Class 12 > Physics

3 answers

Anjan Karthi 2 years, 5 months ago

This is just F = G(m')^2 / R^2 = 6.67 × 10^-11 × (9.1 × 10^-31)^2 / (10^-2)^2.

Account Deleted 2 years, 5 months ago

You don't have your own ??

Hk Honey 2 years, 6 months ago

Send me your Instagram I'd

ANSWER

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