1
KCET 2017
MCQ (Single Correct Answer)
+1
-0
According to Huygens' principle, during refraction of light from air to a denser medium
A
Wavelength decreases but speed increases
B
Wavelength increases but speed decreases
C
Wavelength and speed increases
D
Wavelength and speed decreases
2
KCET 2017
MCQ (Single Correct Answer)
+1
-0
In a system of two crossed polarisers, it is found that the intensity of light from the second polariser is half from that of first polariser. The angle between their pass axes is
A
$60^{\circ}$
B
$30^{\circ}$
C
$0^{\circ}$
D
$45^{\circ}$
3
KCET 2017
MCQ (Single Correct Answer)
+1
-0
During scattering of light, the amount of scattering in inversely proportional to................ of wavelength of light.
A
square
B
fourth power
C
half
D
cube
4
KCET 2017
MCQ (Single Correct Answer)
+1
-0
In Young's double-slit experiment, if yellow light is replaced by blue light, the interference fringes becomes
A
darker
B
brighter
C
wider
D
narrower
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