This is the info for global variables for the GA4 in GTM

This is the testing info for global variables in phtml

testing on product page only for the catalog_product_view xml

welcome

#html-body [data-pb-style=KXDAE13]{justify-content:flex-start;display:flex;flex-direction:column;background-position:left top;background-size:cover;background-repeat:no-repeat;background-attachment:scroll} Experimental components Laser pointer, protractor, semicircular glass brick Experimental process As shown in the figure, use a laser pointer to fit tightly on the protractor and emit a beam of light along the background board, so that it enters the semicircular glass brick at different angles from the air, and observe the trajectory of the incident light and the position change of the refracted light relative to the normal. Experimental phenomena You will find that no matter what your angle of incidence is, the angle of refraction will always be smaller than the angle of incidence. Experimental conclusion Through experiments, it can be observed that when light is incident from air to other transparent media, the angle of refraction will be smaller than the angle of incidence, and the refracted light will be deflected relative to the normal. Additional analysis When light is incident vertically on the interface of a semicircular glass brick, the direction of propagation will not change because at this time the angle of incidence and refraction is equivalent to 0°.

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Physics Lab Kits - Experiment on light refraction to verify angle of refraction smaller than angle of incidence when entering another transparent medium from air.
Physics Lab Kits - Experiment on light refraction to verify angle of refraction smaller than angle of incidence when entering another transparent medium from air.

Physics Lab Kits - Experiment on light refraction to verify angle of refraction smaller than angle of incidence when entering another transparent medium from air.

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LKFS-A05
PhysicsOptics

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Experimental components

Laser pointer, protractor, semicircular glass brick
Experimental process As shown in the figure, use a laser pointer to fit tightly on the protractor and emit a beam of light along the background board, so that it enters the semicircular glass brick at different angles from the air, and observe the trajectory of the incident light and the position change of the refracted light relative to the normal.
Experimental phenomena You will find that no matter what your angle of incidence is, the angle of refraction will always be smaller than the angle of incidence.
Experimental conclusion Through experiments, it can be observed that when light is incident from air to other transparent media, the angle of refraction will be smaller than the angle of incidence, and the refracted light will be deflected relative to the normal.
Additional analysis When light is incident vertically on the interface of a semicircular glass brick, the direction of propagation will not change because at this time the angle of incidence and refraction is equivalent to 0°.
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Physics Lab Kits - Experiment on light refraction to verify angle of refraction smaller than angle of incidence when entering another transparent medium from air.

$30.00