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Answered on 06 Jan CBSE/Class 12/Science/Physics1 Tuition/Class XI-XII Tuition (PUC)

Do electromagnetic waves carry energy and momentum ?

Liji Alex

Mathematics, Physics And Computer Science Tutor

Any type of particle or wave that is in motion carries momentum Electromagnetic waves like any other...

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Answered on 07 Jan CBSE/Class 12/Science/Physics1 Tuition/Class XI-XII Tuition (PUC)

State Faraday ??s law of electromagnetic induction.

Akash Pandey

Physics Tutor

First Law : Whenever the magnetic flux linked with a circuit changes, an e.m.f. is always...

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Answered on 07 Jan CBSE/Class 12/Science/Physics1 Tuition/Class XI-XII Tuition (PUC)

Define self-inductance of a coil. Obtain the expression for the energy stored in an inductor L connected...

Akash Pandey

Physics Tutor

Self induction is that phenomenon in which a change in electric current in a coil produces an induced...

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Answered on 07 Jan CBSE/Class 12/Science/Physics1 Tuition/Class XI-XII Tuition (PUC)

Write the expression for speed of electromagnetic waves in a medium of electrical permittivity ϵ...

Akash Pandey

Physics Tutor

Expressions for the electric and magnetic fields in free space contain the electric permittivity ε0...

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Answered on 07 Jan CBSE/Class 12/Science/Physics1 Tuition/Class XI-XII Tuition (PUC)

Define the term ??modulation index, ?? used in communication system. Why is its value kept less than or equal to one?

Akash Pandey

Physics Tutor

Modulation index(m) is basically the ratio of peak voltage of modulating signal and peak voltage of carrier...

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Answered on 07 Jan CBSE/Class 12/Science/Physics1 Tuition/Class XI-XII Tuition (PUC)

Show that Lenz ??s law is a consequence of conservation of energy.

Akash Pandey

Physics Tutor

Lenz's Law states that, when you induce a current in a wire via a changing magnetic field, the current...

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Answered on 07 Jan CBSE/Class 12/Science/Physics1 Tuition/Class XI-XII Tuition (PUC)

Electrons are emitted from the cathode of a photocell of negligible work function, when photons of wavelength...

Rupesh Kumar

Chemistry

E=Φ+K.E max. Where: Φ=work function of electrode Given: Φ=0 ∴ E=K.E of electron where:...

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Answered on 10 Jan CBSE/Class 12/Science/Physics1 Tuition/Class XI-XII Tuition (PUC)

In Young ??s double slit experiment, the two slits are illuminated by two different lamps having same...

Dr Kumar Atmjeet

Learn Science from the Scientist

In principle you will not. Because even if the wavelengths of the emitting light from the two sources...

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Answered on 07 Jan CBSE/Class 12/Science/Physics1 Tuition/Class XI-XII Tuition (PUC)

How is electromagnetic wave produced ? Draw a sketch of a plane e.m. wave propagating along X-axis depicting...

Aman Mishra

Teacher

Generally, an electric field is produced by a charged particle. A force is exerted by this electric field...

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Answered on 06 Jan CBSE/Class 12/Science/Physics1 Tuition/Class XI-XII Tuition (PUC)

Explain the two processes involved in the formation of a p-n junction diode. Hence define the term ??barrier...

Srinivasa Rao

Tutor

The two process involved in the formation of p-n junction diode is forward biasing and reverse biasing...

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