NEET
- Exam
- NEET
- Subject
- Physics
- Chapter
- Wave Optics
NEET · Physics · Wave Optics
Consider the following statements A and B and identify the correct...
Consider the following statements A and B and identify the correct answer :
A. Fresnel's diffraction pattern occurs when the source of light or the screen on which the diffraction pattern is seen or when both are at finite distance from the aperture.
B. Diffracted light can be used 'to estimate the helical structure of nucleic acids.
Options
- A and are true
- B and are false
- C is true but is false
- D is false but is true
Correct answer
C. is true but is false
Step-by-step solution
A: Fresnel’s diffraction → occurs when source/screen are at finite distance ✅ (True).
B: Diffraction was used to estimate helical structure of nucleic acids (DNA, X-ray diffraction by Rosalind Franklin) ✅ (True).
So, both A and B are true.
✅ Correct Answer: (1) A and B are true