Question

Why the dispersion of light does not occur in a glass slab?

Name the metal which is used in dentistry?

Name the metals which are mixed with gold to make it hard?

Answer 1

Dispersion doesnt take place in glass slab because the opposite side of the slab are parallel to each other.

Mercury is used as amalgam in dentistry.

Copper might be added to gold to make it harder. Silver can also be used.

Hope you were helped. Cheers mate! :^)

Answer 2

dispersion of light does not occur in glass slab because the side of the glass slab are parallel therefore the colour also color parallel to each other

metal used in dentistry is platinum

and the metal which are mixed with gold to make it hard are copper and silver