Which of the following statements is not correct?
- APhotographic plates are sensitive to infrared rays
- BPhotographic plates are sensitive to ultraviolet rays
- CInfrared rays are invisible but can cast shadows like visible light
- DInfrared photons have more energy than photons of visible light
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Similar Questions
The electric field for a plane electromagnetic wave travelling in the $+y$ direction is shown. Consider a point where $\vec E$ is in the $+z$ direction. The $\vec B$ field is
Easy
View SolutionIn a plane electromagnetic wave,the electric field oscillates sinusoidally at a frequency of $2.0 \times 10^{10} \; Hz$ and amplitude $48 \; V m^{-1}$.
$(a)$ What is the wavelength of the wave?
$(b)$ What is the amplitude of the oscillating magnetic field?
$(c)$ Show that the average energy density of the $E$ field equals the average energy density of the $B$ field. $[c = 3 \times 10^{8} \; m s^{-1}]$.
$(a)$ What is the wavelength of the wave?
$(b)$ What is the amplitude of the oscillating magnetic field?
$(c)$ Show that the average energy density of the $E$ field equals the average energy density of the $B$ field. $[c = 3 \times 10^{8} \; m s^{-1}]$.
Medium
View SolutionWhich one of the following is the property of a monochromatic,plane electromagnetic wave in free space?
The speed of electromagnetic waves is the same for all ........
Easy
View SolutionThe ratio of contributions made by the electric field and magnetic field components to the intensity of an electromagnetic wave is:
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