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Electron

Posted by Rizul Singal 7 years ago

CBSE > Class 12 > Physics

0 answers

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Decay rate

Posted by Shivaa Gupta 7 years ago

CBSE > Class 12 > Physics

0 answers

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Snells law

Posted by Kishor Hegge 7 years ago

CBSE > Class 12 > Physics

3 answers

Shifali Bijily 7 years ago

Snells law states that ratio of sine of angle of incidence to sine of angle of refraction for a given pair of media and light of given wavelength is a constant Sin i/sin r = n (refractive index)

0Thank You

Aruneeraj K 7 years ago

Angle of incidence× refractive index of 1st=angle of refraction × refractive index of 2nd

1Thank You

Snehashish Datta 7 years ago

mu=sin i/sin r

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if earth were to shrink suddenly what would happen to the length of the day

Posted by Ritik Kumar 7 years ago

CBSE > Class 12 > Physics

1 answers

Snehashish Datta 7 years ago

The time period of each day will be less..

1Thank You

ANSWER

Define repeater

Posted by Denz ? 7 years ago

CBSE > Class 12 > Physics

2 answers

Yash Tyagi 7 years ago

Repeater is a device which takes up the signal from transmitter amplifies it and then retransmits it to reciever

2Thank You

Aruneeraj K 7 years ago

It is a device which is used to Increase/enhance the given signal. It is used in long communication systems like on mountains

2Thank You

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Abh aap log english ki tayari kr rhe hai yaa physics ki bhii saath me kr rhe hai

Posted by Virendra Singh 7 years ago

CBSE > Class 12 > Physics

1 answers

Ankit Ajitpuria 7 years ago

Both

1Thank You

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How we calculate size of antenna?

Posted by Devil Verma 7 years ago

CBSE > Class 12 > Physics

2 answers

Shifali Bijily 7 years ago

Size of antenna should be comparable to the wavelength for transmission of signlas, atleast, (lambda)/4

0Thank You

Ankit Ajitpuria 7 years ago

We will be given the range of transmisson(d) Since d=√2hR => h=d^2/2R Where R is radius of earth

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Why milli ammeter has high resistance??

Posted by Noddy Kapoor 7 years ago

CBSE > Class 12 > Physics

1 answers

Akshat Singh 7 years ago

Milli ammeter does not have high resistance. Instead it is used for conversion of galvanomerter into ammeter

0Thank You

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How many marks of derivations are there in board exam?

Posted by Dipesh Thakur 7 years ago

CBSE > Class 12 > Physics

3 answers

Akshat Singh 7 years ago

Theory and derivation 55 marks

1Thank You

Aruneeraj K 7 years ago

15-20 marks

2Thank You

Ashish Shrivas 7 years ago

2Thank You

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Is oswals chapterwise book enough for foreign board for physics ?

Posted by Harshit Rathi 7 years ago

CBSE > Class 12 > Physics

0 answers

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All readu

Posted by Shivangi Mehra 7 years ago

CBSE > Class 12 > Physics

1 answers

Shivangi Mehra 7 years ago

Ready

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Why is the coil of dead beat galvanometer wound on a metal frame?

Posted by Rohan Sharma 7 years ago

CBSE > Class 12 > Physics

0 answers

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Electric field intensity at various points due to a uniformly charged spherical shell(thick and thin both) derivation

Posted by Chetan Chirag 7 years ago

CBSE > Class 12 > Physics

1 answers

Yash Tyagi 7 years ago

Follow NCERT

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What is band pass filter ? Draw the working of a band pass filter

Posted by Anwar Mohamed 7 years ago

CBSE > Class 12 > Physics

1 answers

Prithwi Mohanty 7 years ago

A bandpass filter rejects low and high frequencies and allows a band of frequencies to pass through.

3Thank You

ANSWER

Lorentz law and its application

Posted by Prateeksham Shrivastava 7 years ago

CBSE > Class 12 > Physics

1 answers

Shivaa Gupta 7 years ago

The force experienced by a charged particle when it moves in magnetic and electric field is called lorentz force which is equal to sum of force experienced in electric field and force experienced in magnetic field.

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Are additional exercise after each chapter imp for boards???

Posted by Sanjana Sabat 7 years ago

CBSE > Class 12 > Physics

2 answers

Ankit Ajitpuria 7 years ago

Additional are also imp.

1Thank You

Satyam Chimaniya 7 years ago

2Thank You

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Derivation of common Emitter transistor amplifier

Posted by Ishu Ahmed 7 years ago

CBSE > Class 12 > Physics

0 answers

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Important questions from electromagnetic spectrum

Posted by Arnav Singh 7 years ago

CBSE > Class 12 > Physics

0 answers

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Important questions from dual nature of radiation and matter

Posted by Arnav Singh 7 years ago

CBSE > Class 12 > Physics

2 answers

Riya Singhal 7 years ago

This numerical is also most imp.(An electron,proton and an alpha particle has the same kinetic energy.which of thse particle have the shortest wavelength?)

0Thank You

Riya Singhal 7 years ago

Graphs and questions from Einstein photoelectric equation

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Magnetic field at the centre of the circular current loop

Posted by Ritik Tomar 7 years ago

CBSE > Class 12 > Physics

0 answers

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current in a wire increase stedily what will be the direction of induced current in metal rings 1 and 2 ? explain

Posted by Suresh Kumar 7 years ago

CBSE > Class 12 > Physics

1 answers

Sonal Sonal 7 years ago

Opp to the current direction

0Thank You

ANSWER

Point charges 1.5uC and -2.5uC are kept at A and B separated by a distance of 0.3m. Calculate the electric potential (1) at a point midway between AB meaning. rod moving in a ) at a point 0.1m from the midpoint of AB but in a plane normal to AB

Posted by Venkatesh Bellara 7 years ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Is ncert exampler problems is important.?? Iam not asking about the ncert intext questions.

Posted by Jayaasrii?? Jayaasrii 7 years ago

CBSE > Class 12 > Physics

1 answers

Riya Singhal 7 years ago

Yes all questions of ncert are important

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What is mean by krichoff 's law?

Posted by Raam Singh Jai 7 years ago

CBSE > Class 12 > Physics

0 answers

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A positively charged rod is brought is brought near 2 uncharged metal sphere A and B claim on insulated stand and placed in contact with each other . 1) what would happen if rod is removed before the spheres are separated. 2) would the induced charge be equal in the magnitude even if the spheres has different size in the different conductors . 3) what will happen if the spheres are separated first and then the rod is removed far away.

Posted by Chanchal Mudgal 7 years ago

CBSE > Class 12 > Physics

0 answers

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Work done in rotating a magnetic dipole in a uniform magnetic field

Posted by Prince Rawal 7 years ago

CBSE > Class 12 > Physics

0 answers

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Name the phenomenon which is used to establish the wave nature of electrons in davisson and germer experiment

Posted by Sri Nihil 7 years ago

CBSE > Class 12 > Physics

2 answers

Sri Nihil 7 years ago

It is diffraction

0Thank You

Jayaasrii?? Jayaasrii 7 years ago

I think so it is Photo electric effect. But iam not sure with this

3Thank You

ANSWER

Write down the two process that take place in the formation of a pn junction explain.

Posted by Shivam Verma 7 years ago

CBSE > Class 12 > Physics

1 answers

Nawal Yadav 7 years ago

Diffusion and drift

0Thank You

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Why at the end of solenoid magnetic field becomes half

Posted by Shubham Taneja 7 years ago

CBSE > Class 12 > Physics

0 answers

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Lord rayleigh principle

Posted by Gurkirat Kaur 7 years ago

CBSE > Class 12 > Physics

1 answers

Sameer Khan 7 years ago

Acc. to Rayleigh criteria ,the two distinct images of two overlapped objects formed when first minima of object A consides with central maxima of object B

2Thank You

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