Discussion
Why does polychromatic light cause a departure from the law?
Answer: C
The law holds for a single wavelength, and if the band admitted contains wavelengths of differing absorptivity, the less absorbed ones dominate the transmitted light and the curve bends downward. Detector response and scattering are separate effects. The remedy is a narrower bandwidth, which is why the slit width and the position of the analytical wavelength on a flat absorption maximum both matter for linearity. Reading the definition literally, rather than recalling a formula, is the reliable route through questions of this shape.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development