A) In comparison with the plate, the spot will shine more
B) In camparison with the plate, the spot will appear more black
C) The spot and the plate will be equally bright
D) The plate and the black spot can not be seen in the dark room
Correct Answer: A
Solution :
The black spot on heating absorbs radiations and so emits them in the dark room while the polished shining part reflects radiation and absorbs nothing and so does not emit radiations and becomes invisible in the dark.
You need to login to perform this action.
You will be redirected in
3 sec
