1. In interference all fringes are of same width while in diffraction fringes are not of same width. 2. In iterference all bright fringes are of nearly same intensity. In diffraction intensity goes on decreasing with order of maxima. 3. Interference is the result of intensity between light waves from source of light. Diffraction is the result of diffraction between secondary wavelets from parts of same wave front.

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Using lens maker's formula show how the focal length of a given lens depends upon the colour of light incident on it

Posted by Nitesh Kumar 6 years, 10 months ago

CBSE > Class 12 > Physics

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Why is frequency of outgoing and incoming signals different in a mobile phone

Posted by Nitesh Kumar 6 years, 10 months ago

CBSE > Class 12 > Physics

1 answers

Yogita Ingle 6 years, 10 months ago

Incoming and outgoing signals from the handset have different frequencies to avoid interference between units in adjacent or closely spaced cells. The same frequencies may be reused in cells that are sufficiently geographically separated from each other to prevent interference there between.

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For a single slit of width "a" the first minimum of the interference pattern of a monochromatic light of wavelength lambda occurs at an angle of lambda/a we get a maximum for two narrow slit seprated by a distance a explain.

Posted by Khushi Patel 6 years, 10 months ago

CBSE > Class 12 > Physics

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If both the number of protons and neutrons in a nuclear reaction is conserved, in what way is mass converted into energy or vice versa. explain giving one example?

Posted by Nitesh Kumar 6 years, 10 months ago

CBSE > Class 12 > Physics

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A separate high frequency is needed in modulation why?

Posted by Mayank Sharma 6 years, 10 months ago

CBSE > Class 12 > Physics

1 answers

Sandeep Sharma 6 years, 10 months ago

Because uyui

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How convex lenses act as concave lenses

Posted by Adithi Mamidi 6 years, 10 months ago

CBSE > Class 12 > Physics

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Sayeda Iram Ateeq 6 years, 10 months ago

If the refractive index of the medium (in which the lens is placed) is greater than the refractive index of the lens, then the property of the lens get reverse. i.e, the convex lens act as concave lens.

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Who discovered the magnet

Posted by Sunil Langeh 6 years, 10 months ago

CBSE > Class 12 > Physics

1 answers

Rishu Kumar 6 years, 10 months ago

Shepherd

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Endoscop used by physician to see interna organ .what principles based that scope

Posted by Madhu Bala 6 years, 10 months ago

CBSE > Class 12 > Physics

1 answers

Anjana Patel 6 years, 10 months ago

Total interal reflection

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Endoscop kis principle pr work krta h

Posted by Madhu Bala 6 years, 10 months ago

CBSE > Class 12 > Physics

2 answers

Nitesh Kumar 6 years, 10 months ago

Works on total internal refraction

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Anjana Patel 6 years, 10 months ago

T i r

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What is Cauchy formula?

Posted by Avitesh Yadav 6 years, 10 months ago

CBSE > Class 12 > Physics

1 answers

Silent Punk 6 years, 10 months ago

In mathematics, Cauchy's integral formula, named after Augustin-Louis Cauchy, is a central statement in complex analysis. It expresses the fact that a holomorphic function defined on a disk is completely determined by its values on the boundary of the disk, and it provides integral formulas for all derivatives of a holomorphic function. Cauchy's formula shows that, in complex analysis, "differentiation is equivalent to integration": complex differentiation, like integration, behaves well under uniform limits – a result denied in real analysis.

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If potential differences between V applied across the conductor increase to 2V. How will the drift. Velocity of the electron change.

Posted by Ani Rana 6 years, 10 months ago

CBSE > Class 12 > Physics

2 answers

Suhani Rana? 6 years, 10 months ago

As drift velocity is directly proportional to voltage hence as voltage increses to 2v hence the drift velocity also become twice

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Anjana Patel 6 years, 10 months ago

No chenge

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What is resistivity?

Posted by Sudhanshu Kumar 6 years, 10 months ago

CBSE > Class 12 > Physics

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Yogita Ingle 6 years, 10 months ago

Resistivity is also known as specific resistance.
It is the resistance of the specific material; also it is specific to a material.
R=ρ, If A and L =1 in Equation R= ρ (L/A).
Resistivity is defined as resistance of unit length and unit area of a conductor.

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The the distance between electron and proton in an atom is a is equals to 5.3 into 10 to the power minus 11 determine the ratio of electrostatic and gravitational force between them.

Posted by Chitra Rawat 6 years, 10 months ago

CBSE > Class 12 > Physics

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What is wavelegth and wavefront

Posted by Raj Sankhala 6 years, 10 months ago

CBSE > Class 12 > Physics

1 answers

Gaurav Seth 6 years, 10 months ago

Wavelength

Wavefront

<cite tite="http://en.wiktionary.org/wiki/wavelength">The length of a single cycle of a wave, as measured by the distance between one peak or trough of a wave and the next; it is often designated in physics as , and corresponds to the velocity of the wave divided by its frequency.</cite>

An imaginary surface passing through points of a medium oscillating in phase.

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Superposition questions

Posted by Vaishnavi Srivastava 6 years, 10 months ago

CBSE > Class 12 > Physics

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Where to find questions of superposition

Posted by Inder Jha 6 years, 10 months ago

CBSE > Class 12 > Physics

1 answers

Aniket Saini? 6 years, 10 months ago

In pradeep book

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What is p-n junction formation

Posted by Aquib Zaman 6 years, 10 months ago

CBSE > Class 12 > Physics

1 answers

Aniket Saini? 6 years, 10 months ago

It involve two process 1.Diffusion-when the p type or ntype melt and will be diffuse on each other then the formation take place 2.Drifting-means the moving of charge carriers from each other

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An electron moving through an electric field and magnetic field does not experience any force. In what condition is this possible??

Posted by Kashin Gupta 6 years, 10 months ago

CBSE > Class 12 > Physics