If a bi-convex eyepiece is not used and a plano-convex or meniscus lens is used instead, it should be placed with its plane or...

Teaching Guidance 14-16

In many optics experiments, the apparatus we show is a free-standing lamp on a stand. This may be shielded by housing, which...

Teaching Guidance 14-16

The ray box is a useful and convenient piece of apparatus for demonstrating optical phenomena, but be aware of its limitations...

Teaching Guidance 14-16

The simple lens formula for thin lenses is included in some advanced level physics courses, though it is rarely used by...

Teaching Guidance 14-16

A ray diagram is a tool used by physicists to explain or predict the behaviour of beams of light as they pass through objects...

Teaching Guidance 14-16