write 2 precautions to be taken while tracing the path of a ray of light passing through a rectangular glass prism.
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precautions÷1.The glass slab should be properly place on white paper 3.The pins should be fixed vertically and should maintain a gap of 5 cm from each other 3.Don't hammer the pins.4.The feet of pins should be placed in straight line
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Precautions:-
a) drawing board should be made of soft wood.
b) glass slab must be clean and should be free from air bubble.
c) the pins should be fixed in vertical position.
d) keep your eyes along the plane of paper and in line while observing the image and fixing the pins.
Hope this helps you....!
a) drawing board should be made of soft wood.
b) glass slab must be clean and should be free from air bubble.
c) the pins should be fixed in vertical position.
d) keep your eyes along the plane of paper and in line while observing the image and fixing the pins.
Hope this helps you....!
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