Evan Toh
Various lens experiments
The video below shows a typical lens experiment. (reference to O-Level SciPhy 2015). I will briefly go through the set-up, main steps and...
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Evan Toh
Sep 302 min read
Finding focal length f of the lens using pin and mirror or sharp image from distance object
A thin convex lens is placed on a plane mirror and an object pin is then moved along the axis of the lens until an image is seen to...
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Evan Toh
Aug 310 min read
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Evan Toh
Aug 310 min read
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Evan Toh
Aug 311 min read
Light Experiments – Glass Block and Pins
The video include 3 different light experiments which involve glass block and pins. Most students faced difficulties in locating the pins...
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Evan Toh
Aug 310 min read
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Evan Toh
Aug 311 min read
How to read the digital stopwatch
Depending on the experiment, the recording of measured time may be to the nearest 0.1 s or the nearest 1 s, even though a typical digital...
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Evan Toh
Aug 311 min read
Setting up a retort stand and pendulum experiment
In this post, we will be going to the basics of setting up the retort stand and pendulum experiment. Most probably, this will be the...
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