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    • Posted by Indravijay Singh 8 years ago

    CBSE > Class 12 > Physics
    • 0 answers
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    • Posted by Sabeel Ahmad 8 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Sunny Gill 8 years ago

    BC ha ye to

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    • Posted by Vineit Kumar Gupta 8 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Sunaina Gupta 8 years ago

    Neutrino and antineutrino are a part of the lepton family and the antineutrino has a spin number of 1/2. They are porduced when a neutron decays, releasing a proton, electron and an antineutrino. If are familiar with the particle and anti-particle relationship, neutrinos and anti-neutrinos are basically particle and anti-particle pairs and when they interact with each other, they annihilate each other.

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    • Posted by Priyanka Choudhary 8 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Madhavi Likhar 8 years ago

    F/m

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    • Posted by Priyanka Choudhary 8 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Shivam Upadhyay 8 years ago

    Conditions for total internal reflection:- 1. Light must travel from optically denser to an optically rarer medium. 2. The angle of incidence in the denser medium must be greater than the critical angle for the two media.

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    • Posted by Mosmi Singha 8 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Vineit Kumar Gupta 8 years ago

    Metre bridge works on the principle of Wheatstone bridge . It simple we balance the resistances as in Wheatstone bridge and then we find null point . As at null point no current is drawn its very accurate. We comapare the resistance by a value which we know. Like i a have conected a wire and a resistor of 2 ohm and the null point comes out to be 50 cm then Wire /50 =2/50 Or the resistance of given wire is 2ohms We use this formula R/(100-l) = known resistance / l Hope it will help you ☺

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    • Posted by Priyanka Choudhary 8 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Vineit Kumar Gupta 8 years ago

    Ir for musle Gamma by nuclear X rays by electron bombarding Microwave or radio wave are suitable for navigation

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    • Posted by Priyanka Choudhary 8 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Sunaina Gupta 8 years ago

    n= 1/sinC = 1/sin45° = √2 Therefore speed of light in vaccum = speed of light in air/n = 3×10^8/1.414 = 2.121×10^8 m/s The critical angle depends on the index of refraction. The index of refraction can depend on the wavelength (color) of the light; this phenomenon is called dispersion. So yes, in a material with dispersion, the critical angle can depend on color.

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    • Posted by Chamkaur Singh Sidhu 8 years ago

    CBSE > Class 12 > Physics
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    • Posted by Adeeba Khan 8 years ago

    CBSE > Class 12 > Physics
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    • Posted by Amit Chavhan 8 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Harsha Vardan 8 years ago

    25j

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    • Posted by Naqi Rizvi 4 years, 6 months ago

    CBSE > Class 12 > Physics
    • 1 answers

    Sia ? 4 years, 6 months ago

    Interference Diffraction
    Interference may be defined as waves emerging from two different sources, producing different wavefronts. Diffraction, on the other hand, can be termed as secondary waves that emerge from the different parts of the same wave.
    The intensity of all the points on maxima is of similar intensity in interference. In diffraction, there is a variance of the intensity of positions.
    It is absolutely dark in the region of minimum intensity, in the case of interference. We see a variance in the intensity of interference in diffraction.
    The width of the fringes in interference is equal in interference. The width of the fringes is not equal in interference.
    The sources are referred to as interference sources if the number of sources is as few as two sources  If the number of sources is more than to the sources are referred to as diffraction sources.

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    • Posted by Atul Tiwari 8 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Sakshi Pandey 8 years ago

    It just because when light go denser medium (water )to rarer medium (air bubble) then rarer to denser it behave as divergent lens It behave as concave len

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    • Posted by Atul Tiwari 8 years ago

    CBSE > Class 12 > Physics
    • 2 answers

    Sunaina Gupta 8 years ago

    It can be... Seems to be relevant

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    Vineit Kumar Gupta 8 years ago

    I am not sure but this may be because power is defined as diverging or converging capacity of a ray by a lens . Hence as we know more will the focal length more will be the curvature in the lens And less will the effect of it on the power. As at when the radius of curvature for a lens will be infinty . The lens will become a plain glass And it will not diverge or convege and hence following this simple logic it may be said that focal length is inversily proportional to power of a lens

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    • Posted by Sunaina Gupta 8 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Vineit Kumar Gupta 8 years ago

    So here are some most imp derivations from board point of view - dipole (electric field wala ) - guass theorm and sheet wala derivation - microscope - lens maker formula - displacement current wala - electric field inside a spherical shell - lens maker formula - prism wala derivation - energy stored in capacitor - ohms law in vector form and restance wala (Current density ) These have appeared frequently in varoius years :)

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    • Posted by Nikhil Vaishnav 8 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    M Sl 8 years ago

    It doesn't have largest intensity. It has just the same intensity as any other bright fringe

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    • Posted by Madhavi Likhar 8 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Sunaina Gupta 8 years ago

    Electric field lines do not form close loops coz they begin from a positive charge and end on the negative charge or escape to infinity.

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    • Posted by Sunaina Gupta 8 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Nauman Akhtar 8 years ago

    Agree

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    • Posted by Sakshi Kumari 8 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Nauman Akhtar 8 years ago

    Why not

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    • Posted by Vicky Parida 8 years ago

    CBSE > Class 12 > Physics
    • 0 answers
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    • Posted by Komal Hooda 8 years ago

    CBSE > Class 12 > Physics
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    • Posted by Aiman Nisha 8 years ago

    CBSE > Class 12 > Physics
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    • Posted by Abhishek Yadav 8 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Sunaina Gupta 8 years ago

    The two interfering sources must be coherent, that is, they must keep a constant phase difference. The two interfering sources must emit the light of the same wavelength and time period.

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    • Posted by Shivam Singh 8 years ago

    CBSE > Class 12 > Physics
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    • Posted by Sarvesh Singh 8 years ago

    CBSE > Class 12 > Physics
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    • Posted by Kh Manitomba Meitei 8 years ago

    CBSE > Class 12 > Physics
    • 1 answers

    Abhinay Ab 8 years ago

    According to gauss theorem electric flux related to a closed surface is 1/€ times of total charge enclosed by it.

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    • Posted by Kumar Rajan Kumar 8 years ago

    CBSE > Class 12 > Physics
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    • Posted by Anshu Snwha 8 years ago

    CBSE > Class 12 > Physics
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    • Posted by Naman Dhiman 8 years ago

    CBSE > Class 12 > Physics
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    • Posted by Kanchana Mala 8 years ago

    CBSE > Class 12 > Physics
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