Wave Nature of Electromagnetic Radiation

IMPORTANT

Wave Nature of Electromagnetic Radiation: Overview

This topic covers concepts such as Electromagnetic Radiations, Wave Nature of Electromagnetic Radiations, Frequency of Electromagnetic Radiations, Wavelength of Electromagnetic Radiations, Wavenumber of Electromagnetic Radiations, etc.

Important Questions on Wave Nature of Electromagnetic Radiation

MEDIUM
IMPORTANT

Consider the following statements :
(i) The sun is giving out energy equally in all possible directions at the rate of 3.7×1030 ergs/sec.
(ii) 6C14 radio isotope of carbon is formed in the upper atmosphere from cosmic rays.
(iii) New element/isotope may be produced during the nuclear reaction.
(iv) When energy is absorbed, the Q value of nuclear reaction will be negative.

Which of the above statements are correct ?

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The velocity of electromagnetic radiation is related to its wavelength and the frequency by the formula,

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The electromagnetic radiation has wave nature. How does wave number considered as the wave parameter of it?

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Express, the electromagnetic radiation has the wave nature using the wave length and the frequency relationship.

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What is the amplitude of the electromagnetic wave in the diagram below?

Question Image  

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How is amplitude of the electromagnetic radiation related to intensity?

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Explain briefly the physical meaning of an amplitude of a wave.

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A radio can tune to any station in 7.5 MHz to 12 MHz band. The corresponding wavelength band is

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A radio can tune to any station in 7.5 MHz to 12 MHz band. What is the wave length range of the corresponding band?

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The number of wavelengths per unit length is called

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What is/are correct about Hertz (Hz s-1)?

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The ratio of energy to the frequency of electromagnetic radiation is called:

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 An object emits two different radiation, when it absorbs certain amount of energy having  2400 Ao of wavelength in which one radiation having 6000 Ao. What is the wavelength of other radiation?

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Which value is closest to the wavelength, in meters, for a quantum of light with a frequency of  8×1016 per second?

[Given: c=3 x 108 ms-1, h=6.63 x 10-34 J.sec]

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Which of the following is correct?

HARD
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What is the correct sequence of following electromagnetic radiation arranged in the increasing order of energy?
1. X-rays
2. Visible light
3. γ -rays
Select the correct answer using the codes given below:

HARD
IMPORTANT

The angular momentum of an electron in He+ moving in an orbit is h/π . The de-Brogile wavelength associated with electron is: [ a0 is radius of first Bohr's orbit of H -atom]

EASY
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A radio can tune to any station in 7.5 MHz to 12 MHz band. The corresponding wavelength band is

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The Vividh Bharti Station of All India Radio, Delhi, broadcasts on a frequency of 1,368 kHz (Kilohertz). Calculate the wavelength λ of the electromagnetic radiation emitted by transmitter. Which part of the electromagnetic spectrum does it belong to

MEDIUM
IMPORTANT

Calculate the wavelength and energy of radiation emitted for the electronic transition from infinity to stationary state for one H-atom. Given  E1= -13.6 eV .