Wien’s displacement law holds good only for shorter wavelength.

Related MCQs

• The                              system is best developed and is used for fabricating both lasers and LEDs for the shorter wavelength region.
• Temperatures of two stars are in ratio 3:2. If wavelength of maximum intensity of first body is 4000 Å, what is corresponding wavelength of second body?
• Rayleigh-Jean’s law holds good for which of the following?
• The law governing the distribution of radiant energy over wavelength for a black body at fixed temperature is referred to as
• K-alpha x-rays have shorter wavelengths than K-beta x-rays?
• The defect that occurs due to a displacement of an ion is known as
• Which law is also called as the elasticity law?
• Multimode graded index fibers with wavelength of 0.85μm have numerical aperture of 0.29 have core/cladding diameter of                        
• Fiber mostly suited in single-wavelength transmission in O-band is?
• Silica glass of hydroxyl concentration can be used for                        of wavelength.