Gamma rays have a very small

Gamma rays have a very small  A) energy. B) frequency. C) mass. D) wavelength. Answer: ...

Suppose you are listening to a radio station that broadcasts at a frequency of 97 Mhz (megahertz). Which of the following statements is true?

Suppose you are listening to a radio station that broadcasts at a frequency of 97 Mhz (megahertz). Which of the following statements is true?  A)...

Which of the following statements is true of green grass?

Which of the following statements is true of green grass?  A) It absorbs red light and emits green light. B) It absorbs red light and reflects...

Suppose you have a 100-watt light bulb that you leave turned on for one minute. How much energy does it use?

Suppose you have a 100-watt light bulb that you leave turned on for one minute. How much energy does it use?  A) 6,000 joules B) 6,000 watts C)...

You observe a distant galaxy. You find that a spectral line of hydrogen that is shifted from its normal location in the visible part of the spectrum into the infrared part of the spectrum. What can you conclude?

You observe a distant galaxy. You find that a spectral line of hydrogen that is shifted from its normal location in the visible part of the spectrum...

The spectra of most galaxies show redshifts. This means that their spectral lines

The spectra of most galaxies show redshifts. This means that their spectral lines  A) have wavelengths that are longer than normal. B) always...

Suppose you want to know the chemical composition of a distant star. Which piece of information is most useful to you?

Suppose you want to know the chemical composition of a distant star. Which piece of information is most useful to you?  A) The peak energy of...