1.

If a carved black utensil is heated to high temperature and then brought in dark then1) both utensil and its carving will Shine2) only utensil will shine3) only carving will shine4) none of the utensil and carving will Shine

Answer»

Answer(1)

If a carved black utensil is heated to high

temperature and then brought in dark then:

(1) Both utensil and its carving will shine

(2) Only carving will shine

(3) Only utensil will shine

(4) None of the utensil and carving will shine.

Both utensil and its carving will shine.

The reason is that the thermal radiation are emitted spontaneously by many ordinary objects.

Therefore this phenomenon can be called as black-body radiation.

When a body absorbs so much heat then it emits thermal radiations according to its temperature.



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