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What is Polaroids???

Posted by Riya Verma 4 years, 3 months ago

3 answers

Shreya Singh 4 years, 3 months ago

Polaroids are polarizing materials consisting of long chain of molecules aligned in a particular direction. Polaroid's are in the form of thin sheets. Every Polaroid has pass axis.

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Kishor Kumar 4 years, 3 months ago

Ye Sidharth kanhi v ghus ja rha h

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Sidharth ($Id) 4 years, 3 months ago

Riya aapne naaasta KIYA??

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What is Equilibrium

Posted by Balajee Sharma 4 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Vishal Singh 4 years, 3 months ago

In physic equilibrium mean where net force is equal to zero

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Two point charges 5×10to the power -8 are located 16 cm apart . At what point on the line joining the two charges is the electric potential to be zero?

Posted by Nillachandra Oinam 4 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

The diameter of the sun makes an angle 20 minutes at a point on the earth find out the diameter of the image of the sun thought a concave mirror having a focal length 2 metre also find the position of the image

Posted by Himanshu Sahu 4 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

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where should an object be placed in front of a concave mirror of radius of curvature 30cm to get a magnification +3 and -3

Posted by Himanshu Sahu 4 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

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What's electric flux?

Posted by Sachin Mishra 4 years, 3 months ago

CBSE > Class 12 > Physics

5 answers

Taranveer Kaur 4 years, 3 months ago

No of electric field lines crossing the area

0Thank You

Taranveer Kaur 4 years, 3 months ago

B(magnetic field).A(area)

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Vishal Singh 4 years, 3 months ago

Electric flux can be defined as no. Of electric field lines passing normally through given surface

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Jatin Kurmi 4 years, 3 months ago

Zero

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Abhay Sahal 4 years, 3 months ago

Electric flux over an are in an electric field is the measure of no of field lines crossing the area

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ABCD IS A SQUARE OF SIDE 0.2 m

Posted by Shivnanda Rajeev 4 years, 4 months ago

CBSE > Class 12 > Physics

2 answers

###### ₹₹₹₹₹₹ 4 years, 3 months ago

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Akul Chauhan 4 years, 3 months ago

use the formula of square(sides)

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By what factors the capacitance of a metal sphere increases if it's volume is made 27 times

Posted by Yash Tyagi 4 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Abhay Sahal 4 years, 3 months ago

Capacity will no change as it doesn't depend on the shape and size of the conductor

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Hlo everyone.....

Posted by Aman ❤️ 4 years, 4 months ago

CBSE > Class 12 > Physics

5 answers

Black Panther 4 years, 3 months ago

Hello this is study counter and plzz do not involve in this stupid chats. Other wise your account will be banned.this is official app of cbse. Your all responses are recorded. Just ask the question and answer the question and clear the doubts.this is not love making app. R

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❤️Ritesh Gupta? 4 years, 3 months ago

Sona follow me on Instagram- riteshgupta16_

1Thank You

❤️Ritesh Gupta? 4 years, 3 months ago

Sona heyy, nice to meet you

1Thank You

Dark ..? 4 years, 3 months ago

Hlo

1Thank You

❤️Ritesh Gupta? 4 years, 3 months ago

Kaise ho

1Thank You

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What is Physics. Kese ho sab

Posted by Snehil J@@T 4 years, 4 months ago

CBSE > Class 12 > Physics

3 answers

Vishal Singh 4 years, 3 months ago

Physic deal with study of nature and natural phenomena

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Nishant Sharma 4 years, 4 months ago

It's a branch of science that deal with the laws of nature and beyond the ordinary thinking!

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❤️Ritesh Gupta? 4 years, 4 months ago

Bhai Instagram chalate hoo... I'd bolo

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A current of 1.5 amperes in a 800 turns coil (b) produces 1.5 × 10-5 weber magnetized flux in each turn. Find out the self-inductance of coil.

Posted by Prakash Densil 4 years, 4 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

A charge q is placed at the centre of a cube what is the electric flux through a single face of cube

Posted by Muskan Arora 4 years, 4 months ago

CBSE > Class 12 > Physics

4 answers

Aashima Tyagi 4 years, 4 months ago

As the charge at the center of the cube, the flux through each surface is same. Using Gauss's law, 6ϕ=ϵ0Q ⇒ϕ=6ϵ0Q HOPE THIS HELPED YOU

0Thank You

Snehil J@@T 4 years, 4 months ago

Abe hi nhi dete kisi ko ?

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Nik . 4 years, 4 months ago

Hii

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❤️Ritesh Gupta? 4 years, 4 months ago

Hii

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Prove that an electric do pole kept in a uniform electric field experience no net force but torque which is given by τ = p*E

Posted by H V 4 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Nishant Sharma 4 years, 4 months ago

A dipole consists of two charges of equal magnitude with opposite nature. When kept in electric field the force on positive charge is qE in the direction of field but on negative is qE but opposite to electric field.hence Net force is zero!

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ANSWER

Two point charges are kept d distance apart in vacuum how should the distance between them be changed so that the coulomb force between them remains the same when they are kept in medium of dielectric constant 16.

Posted by H V 4 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Sia ? 4 years, 4 months ago

</div>

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krantik kon ki paribhasa

Posted by Anjani Rathiya 4 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Sia ? 4 years, 4 months ago

क्रांतिक कोण (critical angle):- सघन माध्यम में आपतन कोण का वह मान जिसके लिए विरल माध्यम में आपवर्तन कोण 90 degree होता है। क्रान्तिक कोण कहते है। ... हीरे और हवा के लिए क्रांतिक कोण का मान 24.2 डिग्री होता है।

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Derive the expression of electric field due to uniformly charged ring of radius R at an axial position r from the centre of the ring.

Posted by Aayush Raj 4 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Garv Pathak 4 years, 4 months ago

Dickyyy

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.In a crystal of compound having molecular formula X 2Y 3, Y atoms are arranged as CCP, then what fraction of tetrahedral voids will be covered by X atoms?

Posted by Safa Shaj 4 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Dr. Utkarsh Singh 4 years, 4 months ago

Iss type ke questions toh chemistry ke ch - 1 ( solid state ) mein hain !

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ANSWER

Young's modulu?

Posted by Black Panther 4 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Sia ? 4 years, 4 months ago

Young's modulus is a measure of the ability of a material to withstand changes in length when under lengthwise tension or compression.

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107A से 1010A तरंग-दैर्घ्य परास वाले विद्युत-चुम्बकीय तरंग का नाम लिखिए और इसके दो महत्वपूर्ण उपयोग लिखिए।

Posted by Puspa Patail 4 years, 4 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Name the electromagnetic wave of wavelength range 107å to1010å

Posted by Puspa Patail 4 years, 4 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Explain Gauss's Law in detail

Posted by Samir Doshi 4 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Sia ? 4 years, 4 months ago

Gauss Law states that the total electric flux out of a closed surface is equal to the charge enclosed divided by the permittivity. The electric flux in an area is defined as the electric field multiplied by the area of the surface projected in a plane and perpendicular to the field.

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A Faraday cage or Faraday shield is an enclosure made of a conducting material. The fields within a conductor cancel out with any external fields, so the electric field within the enclosure is zero. These Faraday cages act as big hollow conductors you can put things in to shield them from electrical fields. Any electrical shocks the cage receives, pass harmlessly around the outside of the cage

Posted by Kunal Chunbuk 4 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Rishav Singh 4 years, 4 months ago

1Thank You

ANSWER

Why current element is vector quantity?

Posted by Deepak Pandey 4 years, 4 months ago

CBSE > Class 12 > Physics

2 answers

Sia ? 4 years, 4 months ago

Electric Current is a Scalar Quantity but it Possesses Magnitude and Direction. If the physical quantity obeys the laws of vector addition such as triangle law of vector addition and parallelogram law of vector addition, then the quantity is said to be a vector quantity.

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Rishav Singh 4 years, 4 months ago

Hlo

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Derive the expression for Torque and electric potential energy when dipole placed in U.E.F.

Posted by Megha Chauhan 4 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

__I.Am.Shyam. Jaat?__ 4 years, 4 months ago

Electric dipole moment is the measure of separation of positive and negative charges. It is the measure of overall polarity. Its SI unit is Coulomb-meter.

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ANSWER

Derive the expression for an short dipole electric dipole prove that Eax-2Eeq

Posted by Megha Chauhan 4 years, 4 months ago

CBSE > Class 12 > Physics

0 answers

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Shielding effect?

Posted by Shashwat Singh 4 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Nishant Sharma 4 years, 4 months ago

Inner orbital electrons reduce effective nuclear charge on valence electrons.or simply they shield the outer electrons from pull of nucleus

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Gauss law?

Posted by Shashwat Singh 4 years, 4 months ago

CBSE > Class 12 > Physics

4 answers

Shashwat Singh 4 years, 4 months ago

Gud afternoon?

2Thank You

? Royal Thakur ? 4 years, 4 months ago

Good morning ☺

1Thank You

Vishal Singh 4 years, 4 months ago

Gauss law States that electric flux through any closed surface is equal to net charge encloses inside the surface to the permittivity of vaccum.

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Megha Chauhan 4 years, 4 months ago

Gauss's law states that. The net electric flux through any hypothetical closed surface is equal to. times the net electric charge within that closed surface.

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ANSWER

Electrostatic shielding?

Posted by Shashwat Singh 4 years, 4 months ago

CBSE > Class 12 > Physics