Physics General Science Test Hard Mode

Sr. #	Questions	Answers Choice
1	Huygen's wave theory of light cannot explain	Diffraction Interference Polarization Photoelectric effect
2	The contrast in the fringes in any interference pattern depends on	Fringe width Intensity ratio of the sources Distance between the slits Wavelength
3	If yellow light emitted by sodium lamp in Young's double slit experiment is replaced by monochromatic blue light of the same intensity	Fringe width will decrease Fringe width will increase The fringe width will remain unchanged Fringes will become less intense
4	Which one of the following phenomena is not explained by Huygen's construction of wavefront?	Refraction Reflection Diffraction Origin of spectra
5	Light appears to travel in straight lines since	It is not absorbed by the atmosphere It is reflected by the atmosphere Its wavelength is very small Its velocity is very large

News