Question

Which of the following common everyday phenomena are examples of resonance? A. Grandparent rocking in his/her favorite rocking chair B. The jiggling of your steering wheel which happens when you hit a certain speed C. A singer hitting a high note and shattering a piece of glass D. B and C

When cool, dense objects become very hot, their blackbody radiation changes in that

	A.	It becomes brighter
	B.	Its brightness peaks at shorter wavelengths
	C.	It changes color
	D.	All of the above

Answer 1

1. both B and C

2

D.

All of the above' since L*T = constant = 0.0029 also I = AE sigma T^4 when body heats, its temperature increases, so it becomes brigther the as LT is cosntant, L decrases, wavelgnth becomes shorter, thus colour also changes

Answer 2

D. B and C

D.	All of the above

Answer 3

1) B AND C ARE CORRECT FOR RESONANCE

2)D IS COORECT