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Explain the phenomenon of the differaction of light due to single slit and Show graphically the variation in the intensity with angle in the differaction pattern

Posted by Raj Kunwae 8 years, 1 month ago

CBSE > Class 12 > Physics

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What is pulsars

Posted by Sarthak Shrivastav 8 years, 1 month ago

CBSE > Class 12 > Physics

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Kritika Trehan 8 years, 1 month ago

A pulsar (from pulse and -ar as in quasar) is a highly magnetized, rotating neutron star or white dwarf, that emits a beam of electromagnetic radiation. ... Observations of apulsar in a binary neutron star system were used to indirectly confirm the existence of gravitational radiation.

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What type of electric rield

Posted by Ankit Yadav 8 years, 1 month ago

CBSE > Class 12 > Physics

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What is a transistor

Posted by Himanshu Mishra 8 years, 1 month ago

CBSE > Class 12 > Physics

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Kritika Trehan 8 years, 1 month ago

A transistor is a semiconductor device used to amplify or switch electronic signals and electrical power. It is composed of semiconductor material usually with at least three terminals for connection to an external circuit.

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What is critical angle

Posted by Aaryan Soni 8 years, 1 month ago

CBSE > Class 12 > Physics

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Anubhavi Jha 8 years, 1 month ago

The angle of incidence in denser medium for which angle of refraction in rarer medium is 90 degree

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If a man uses +2D spectacles then he has? A. Myopia B. Hyper metro pia C. Presbyopia D. Astigmatism

Posted by Nitesh Thakur 8 years, 1 month ago

CBSE > Class 12 > Physics

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Aditi Singh 8 years, 1 month ago

B.hypermetropia

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What is diffuse reflection

Posted by Jass Wadhan 8 years, 1 month ago

CBSE > Class 12 > Physics

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Kritika Trehan 8 years, 1 month ago

Diffuse reflection is the reflection of light or other waves or particles from a surface such that a ray incident on the surface is scattered at many angles rather than at just one angle as in the case of specularreflection.

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Vacuum tube electronic devices have low reliability while solid state electronic devices have high reliability

Posted by Abhinav Singh 8 years, 1 month ago

CBSE > Class 12 > Physics

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What are photosensitive materials?

Posted by Zishan Sheikh 8 years, 1 month ago

CBSE > Class 12 > Physics

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Aditi Singh 8 years, 1 month ago

The materials which emit electrons eaisly when light of suitable frequency strikes their surface

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What are coherent sources of light ?State two conditions for two light to be coherent

Posted by Shahanshah Yusuf 8 years, 1 month ago

CBSE > Class 12 > Physics

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Pritam Bhatt 8 years, 1 month ago

The source of light which emit continues light wave of same frequency ,wave length and in same phase or having a constant phase difference CONDITION :- 1. It should obtain from a single source 2. Two sources should give monochromatic light

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Ncret question also must doing for exam

Posted by Arya Tyagi Arya 8 years, 1 month ago

CBSE > Class 12 > Physics

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How is p-type semiconductor formed? Name the majority carriers in it.

Posted by Jazz Mansingh 8 years, 1 month ago

CBSE > Class 12 > Physics

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Abc Xyz 8 years, 1 month ago

P type semiconductor is formed by adding trivalent impurities to silicon or germanium. The majority carriers are holes

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Suzen Khan 8 years, 1 month ago

P type semiconductor is formed when 13group elements (Al, Ga) are doped into pure intrinsic semiconductors. Holes are majority charge carriers and electrons are minority charge carriers

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Describe the use of zener diode as a voltage regulator

Posted by Suzen Khan 8 years, 1 month ago

CBSE > Class 12 > Physics

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What is the need for satellite communication

Posted by Suzen Khan 8 years, 1 month ago

CBSE > Class 12 > Physics

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What is zener diode

Posted by Suzen Khan 8 years, 1 month ago

CBSE > Class 12 > Physics

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Avnish Kumar 8 years, 1 month ago

It is a spwcial pupose junction diode which operates in reverse bias condition. the zener diode works at reverse breakdown voltage without getting damaged.

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What is a electron

Posted by Manish Kumar 8 years, 1 month ago

CBSE > Class 12 > Physics

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Nayan Chaturvedi 8 years, 1 month ago

Negative change particles which present in atoms

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What is SHM

Posted by Richa Bharti 8 years, 1 month ago

CBSE > Class 12 > Physics

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Rohan Ray 8 years, 1 month ago

The to and fro oscillatory motion in which force is directly proportional to displacement of body from mean position and force and displacement are in opposite direction is called SHM

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CBSE sample paper of 12

Posted by Naveen Kumar 8 years, 1 month ago

CBSE > Class 12 > Physics