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Earn 100

The remote control of a TV emits infra-red light of wavelength . The TV detector is made of a semiconductor whose band gap is . The detector is shielded by a semiconductor optical filter whose band gap is . From the four options below, select the best option for the TV to function.
(a) and
(b) and
(c) and
(d) and

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Important Questions on Dual Nature of Radiation and Matter
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Given below are two statements:
Statement Two photons having equal linear momenta have equal wavelengths.
Statement If the wavelength of the photon is decreased, then the momentum and energy of a photon will also decrease.
In the light of the above statements, choose the correct answer from the options given below.

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[Given Planck's constant speed of light ]

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Speed of light .

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