wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Case: Pooja did an experiment with an equilateral glass prism in which she projected a narrow beam of white light source from one side of the surface of the prism and placed a screen on the other side of the prism. She observed certain patches of different colours on the screen. Later, she repeated the same experiment with a red-light source, however, she could only observe a red coloured patch on the screen. Again, she repeated the experiment with blue and green light sources, respectively, and could only see one colour patch on both the occasions.

The reason why she could not see any other colour when the red light was used as source because:

A
The prism was defective
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
Red light source is monochromatic
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
Red colour does not refract in prism
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
The prism is opaque to red colour
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is B Red light source is monochromatic
She could not see any other colour on the screen when red light source was used because the source has only one light of single wavelength, i.e, the source (red light) is monochromatic.

flag
Suggest Corrections
thumbs-up
2
similar_icon
Similar questions
View More
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Adaptive Q3_Group 1 Physical Properties_Q3
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon