Describe the energy transformations that takes place during the use of the following objects: a. a burning candle b. a light bulb

What is the earliest point in the universe that we can observe? why can’t we see back further than this?

Astudent is given an assignment to demonstrate diffraction. he takes a photograph of a straw in a glass of water. the straw appears bent at the water level. which best describes this example? a) this is a good example of diffraction. b) this is an example of dispersion and not diffraction. c) this is an example of refraction and not diffraction. d) this is an example of reflection and not diffraction.

What is a carrier wave and how does it affect what you hear on the radio