Discussion
Consider the following statements :
(i) LCD essentially acts as a capacitor.
(ii) LCD has slow decay time.
(iii) LCD's appear invisible in darkness.
(iv) Twisted nematic LCD segment appears black when its is in 'ON' condition. Which is valid one ?
Answer: D
All four statements are valid, option (D). A liquid crystal display behaves essentially as a capacitor, its decay time is slow, it does not emit light and so is invisible in darkness, and a twisted nematic segment looks black when it is switched on.
Options A, B and C each name only some of the statements, so they leave out a true one. Since (i), (ii), (iii) and (iv) are all accepted, only option D is complete.
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