The refractive index of a piece of transparent quartz is the greatest for [MP PET 1985, 94]
Red light
Violet light
Green light
Yellow light
The refractive index of a piece of transparent quartz is the greatest for
The refractive index of a certain glass is 1.5 for light whose wavelength in vacuum is 6000 Å. The wavelength of this light when it passes through glass is
[NCERT 1979; CBSE PMT 1993; MP PET 1985, 89]
8 coins are tossed simultaneously. The probability of getting at least 6 heads is
[AISSE 1985; MNR 1985; MP PET 1994]