Q

Which material cannot be used to make a spherical lens?

RRB Group-D 16/09/2022 / Shift-II 2022
✓ Answer: C Wood
A conventional lens must transmit light. Wood is opaque.
← Previous Question Next Question →

📚 Related Questions — Light

1 To which surfaces do the laws of reflection apply? 2 Outer space looks black because: 3 The ratio sin i/sin r is known as _____. 4 Which substance can have a higher optical density but a lower mass… 5 A car’s convex rear-view mirror has focal length 2 m. A bus… 6 Which points always lie on a lens’s principal axis? (i) Point of…